I have been out of the game for a while but I was hoping one of y'all could help - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

My son had a T-Mobile branded S20 5G and I moved our service to Verizon. I paid his phone off and got it unlocked. Everything was working fine up until a couple of weeks ago. He did an update (didnt pay attention to what kind of update) and now he cant make or recieved calls or text (keepin mind the phone was working fine before this update). Attempts to call result in a message from Verizon saying that they cant authenticate his phone.
I *****ed at Samsung for a bit since his phone isnt rooted and even though its over a year old if a software update bricked it, I felt like they should have some ownership of the issue. It was a waste of time so now I'm back on the phone waiting for VZW tech support.
I think the issue is that its a TMO branded phone on VZW's network and everyone is pointing the finger at everyone else. My question is 2 fold.
1) has anyone ever experienced this before, and if so what did you do to resolve it and
2) I will attempt to root it and flash a ROm on it before I entertain buuying another phone.....hes got enough other **** hes dealign with financially he doesnt need to add a new phone purchase to his plate.
Any help would be much appreciated because I'm pissed the eff off at this point.
Yes we tried different APN settings...he walked into a VWZ store and they were able to get his data working but not voice or text....seems like something is out of whack with his radios). We also did a full factory reset.....same issue persists

I am not an expert on ROMs but I will give you my two cents. When I was playing with my unlocked phone, I realized that mine updated some CSC binaries as soon as I inserted the SIM. I saw some message for it updating the CSC code from XAA to TMB when I inserted TMO SIM on stock firmware. So my suggestion would be to try downloading VZW stock firmware from samfw.com and installing that.

Related

Unlocked GSM Galaxy Nexus - No signal al all

Hello,
A bit about my Nexus: Bought it online, it's the Domoco version, unlocked, rooted and been using just fine with many custom ROMs.
So yesterday morning, I was talking on the phone with a friend without any problem. After hanging up for a few hours, when I was about to call someone else, I realized my phone didn't have any signal at all. And it has been like that until now, about 48 hours.
It happened so suddenly without any warning. The phone has never been dropped and everything else working just fine.
So here's what I have tried:
- Restart the phone (multiple times)
- Batter pull (multiple times)
- Factory reset the phone (multiple times)
- Wipe cache and dalvik cache in CWM (multiple times)
- Downloaded SetCPU and set the minimum to 700Mhz (instead of 350Mhz)
- Reflash the ROM and tried with other Custom ROMs (I tried Xenon, Xylon, PA, and Carbon ROMs)
- Reflash the Radio and tried with other Radios too (I tried UILH1, XXLH1, SC04DOMLE3 and some others ...)
- I also went to Tmobile and request a new sim card - same problem.
- I borrowed a sim card from another Tmobile customer to try it on my phone - no signal - but the sim card works just fine on his phone.
I ran out of thing to try and I dont understand what happened ... anyone has an idea or something else for me to try ?
Anyone experience this before ?
Welcome too my hell. I have a playstore one now but my first Gnex was an international one and it has this same issue. Its a PCB problem a warranty would fix. I'm near Chicago and a few people have told me there is an electrical engineer downtown that fixes stuff like this. I don't have a price but I think something like this is your only option. Mine sadly is still a battery charger:thumbdown:
Sent from my Galaxy Nexus using xda premium
I know it sounds stupid, but have you tried toggling airplane mode? I run into the occasional loss of signal when im at work [fair to weak signal in the big metal box], and a reboot is the only thing that fixes it for me. Mines a play store model.
bodh said:
I know it sounds stupid, but have you tried toggling airplane mode? I run into the occasional loss of signal when im at work [fair to weak signal in the big metal box], and a reboot is the only thing that fixes it for me. Mines a play store model.
Click to expand...
Click to collapse
Ah yes, I actually did try that too but forgot to mention. I tried toggle airplane mode on and off, also the 2G only mode on and off. But it didn't help with anything.
Thanks for the suggestion.
JediDru said:
Welcome too my hell. I have a playstore one now but my first Gnex was an international one and it has this same issue. Its a PCB problem a warranty would fix. I'm near Chicago and a few people have told me there is an electrical engineer downtown that fixes stuff like this. I don't have a price but I think something like this is your only option. Mine sadly is still a battery charger:thumbdown:
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
So I guess I have to look for an electrician then, cause I have this phone just a little bit over a year so warranty is a no go for me.
Thanks for the idea.
PS: anyone else has more option for me ? I just wondered if I have bricked my phone ... cause I flashed lots of diff. ROMs to try out but never gotten a bricked phone before, could this be a bricked phone ?
Bricked refers to a phone that does what a brick does: nothing. It doesn't boot, it does not light or attempt to boot, it does nothing. This is a signal issue..I have no prior experience with docomo, but this thread came up on search: http://forum.xda-developers.com/showthread.php?t=1574018, maybe it'd be helpful. Have you converted it to yakju or takju and tried a google factory image?
And this: http://forum.xda-developers.com/showthread.php?t=1554150. If it is a circuit board, it kinda looks like s.o.l., and im sad to say that to you.
I wanted to let you know that I experienced the same issue. I bought the unlocked Docomo Galaxy Nexus, and had it working fine on T-Mobile for half a year, and then suddenly had no signal on Tuesday. Nothing I did - factory reset, battery in and out, sim card in and out - could fix it. Have you tried using different sim cards in your phone to see what works and what doesn't?
I figured out that my phone will accept AT&T, and actually does connect to T-Mobile while roaming (I used an international sim card). But, my phone will say "Cannot find mobile network" when any T-Mobile sim card is inserted.
chowabbajack said:
I wanted to let you know that I experienced the same issue. I bought the unlocked Docomo Galaxy Nexus, and had it working fine on T-Mobile for half a year, and then suddenly had no signal on Tuesday. Nothing I did - factory reset, battery in and out, sim card in and out - could fix it. Have you tried using different sim cards in your phone to see what works and what doesn't?
I figured out that my phone will accept AT&T, and actually does connect to T-Mobile while roaming (I used an international sim card). But, my phone will say "Cannot find mobile network" when any T-Mobile sim card is inserted.
Click to expand...
Click to collapse
I also have the same problem with the docomo phone. ATT Sim card works. Tried other's T-mobile sim cards and it doesn't work. I wonder if somehow the IMEI has been blocked by T-mobile.
wocman said:
I also have the same problem with the docomo phone. ATT Sim card works. Tried other's T-mobile sim cards and it doesn't work. I wonder if somehow the IMEI has been blocked by T-mobile.
Click to expand...
Click to collapse
I know others who bought their GNEX through the Play Store and those work just fine with T-mobile. I tried their sim cards in my phone and it doesn't work. I don't think T-mobile is intentionally blocking the docomo phones, because I'm getting T-mobile through roaming, when I use an international sim. My guess is they're doing something to the cell network that just somehow leaves our configuration out. Hopefully it's temporary, but who knows.
Worse case, I'll just purchase a Nexus 4, because I love 4G data for just $30/month with T-mobile. Anyone else got suggestions?
wocman said:
I also have the same problem with the docomo phone. ATT Sim card works. Tried other's T-mobile sim cards and it doesn't work. I wonder if somehow the IMEI has been blocked by T-mobile.
Click to expand...
Click to collapse
Alright, update on this and there' good news. I called Tmobile and they said my IMEI is actually Blocked. The reason, according to him, is that Tmobile usually sweep the network to clean up all "un-supported" devices, so my device is apparently one of them and therefore got blocked about 2 days ago.
So he said for this, he needs to escalate it to business support and they surely can unblock it for me, but I have to wait until Monday since they don't work on weekend. But well, that's surely a good news. phewwwwwwwwwwwwww !!!
So to all of you guys who are in the same situation, make sure you call Tmobile first before flashing crazy like I did LOL.
Thanks for all the help.
I'd love to know if you are able to get this unblocked and working as I have the same problem as of Tuesday. I was traveling and went into a TMO store, and they told me it was NOT IMEI blocked. In fact they looked at the IMEI and read the page and said 'it was not eligible for blocking'.
I called TMO to see if my phone is IMEI blocked, and through three levels of support the universal answer was no. I'm now fully confused because if it's a hardware issue, why did several people all have the same problem all on Tuesday. For those others who are having issues, can you see the TMO network but not connect to it? That's what I have, I can see TMO and AT&T but haven't been able to connect to either one since Tuesday.
simple23227 said:
Alright, update on this and there' good news. I called Tmobile and they said my IMEI is actually Blocked. The reason, according to him, is that Tmobile usually sweep the network to clean up all "un-supported" devices, so my device is apparently one of them and therefore got blocked about 2 days ago.
So he said for this, he needs to escalate it to business support and they surely can unblock it for me, but I have to wait until Monday since they don't work on weekend. But well, that's surely a good news. phewwwwwwwwwwwwww !!!
So to all of you guys who are in the same situation, make sure you call Tmobile first before flashing crazy like I did LOL.
Thanks for all the help.
Click to expand...
Click to collapse
I'll call up T-Mobile tomorrow and ask if they IMEI blocked my device. I had them reset my signal and give me a new SIM card, but didn't realize it could have been IMEI blocked. I'll give them a call on Monday and let you know what the result is. Maybe it won't be too late to cancel my order on that Nexus 4...
I'm quite confused. I've been told last Thursday in a TMO store and with tech support that I didn't have an IMEI block, and the same with three reps tonight. I know the Sim Card is good, and so I'm being told its a hardware issue. However, several of the same phones had the same issue on the same day, so I can't buy it's a hardware issue. Has anyone with this issue flashed a new or different radio into the phone, either before or after the service loss? I have not, running it as it came out of the box.
I just got off the phone with T-Mobile Support, and they told me the device is not blocked. The reason is that T-Mobile cannot block or unblock devices that are not registered to T-Mobile. So I'm back to square one on this.
chowabbajack - When did you first have a problem, last Tuesday? Did you prior to that do any flashing or radio changes to the phone?
We're in the same spot....
alexwinsberg said:
chowabbajack - When did you first have a problem, last Tuesday? Did you prior to that do any flashing or radio changes to the phone?
We're in the same spot....
Click to expand...
Click to collapse
I did not do any kind of flashing or radio changes prior to Tuesday, when I lost signal.
chowabbajack said:
I did not do any kind of flashing or radio changes prior to Tuesday, when I lost signal.
Click to expand...
Click to collapse
That makes me think its something to do with the radio software, because I am the same the problem overall doesn't seem as large as the number of phones I perceive were bought on the Docomo deal.
Ive been using the docomo version of the nexus as well on tmobile for almost a year and it was since last tuesday when it no longer recieved any singal. with some digging around and too many phone calls, I found that the imei number on the phone is not the same as the one under the battery. i have the generic 004999010640000 imei right now and it not sure how i got it. as i bought it unlocked.
what i have tried:
reboot, battery plug, reinsert sim, factory reset, root and flash, got a new sim card, relocked, unlocked
sim card works on other phones.
also i have called tmobile and samsung endlessly and this is what i got:
tmobile cannot unblock the imei since it is not from them.
samsung is redirecting me to their japan branch.
docomo i cannot reach.
my phone before last tuesday:
unrooted stock 4.2.1
been testing different things to see if there is any way to restore the imei
also using root explorer, i cannot find my efs folder....
I've got the same problem since last Tuesday with my GNex and T-Mobile.
Mine is not from docomo though, but the French phone provider SFR, unlocked through FDocomo apk.
Rooted phone, running 4.2.1., no changes whatsoever in the past month and it worked fine until Tuesday, so I don't think I'm responsible for having no signal.
Honestly, I am relieved to see we are quite a few to have this problem, and also very pissed at T-Mobile for causing all this. What should be the next step then? Is there any chances they fix the issue quickly? If not, I might just go to the competition. I've tried AT&T sim cards and they work fine.
vanessax17 said:
Ive been using the docomo version of the nexus as well on tmobile for almost a year and it was since last tuesday when it no longer recieved any singal. with some digging around and too many phone calls, I found that the imei number on the phone is not the same as the one under the battery. i have the generic 004999010640000 imei right now and it not sure how i got it. as i bought it unlocked.
what i have tried:
reboot, battery plug, reinsert sim, factory reset, root and flash, got a new sim card, relocked, unlocked
sim card works on other phones.
also i have called tmobile and samsung endlessly and this is what i got:
tmobile cannot unblock the imei since it is not from them.
samsung is redirecting me to their japan branch.
docomo i cannot reach.
my phone before last tuesday:
unrooted stock 4.2.1
been testing different things to see if there is any way to restore the imei
also using root explorer, i cannot find my efs folder....
Click to expand...
Click to collapse
I have the exact same generic IMEI number as you, which does not match the number under the battery. I'm not liking the news that you did flash and still no go. I'm a novice at this stuff so please keep us posted.

[Q] Help with unlock

To state clearly at first. The new phone in question was not rooted when I purchased it, but I did root it. So the phone is rooted but not unlocked. I thought I should also add that I'm in Atlantic Canada.
As usual, I always seem to have an issue that I look and can never seem to find the answer. This leaves me asking a question that I'm hoping there isn't already an answer to because I know people hate that.
So here goes. I have 2 SGH-989D phones. One I got new 18 months to 24 months ago with my re-negotiated Telus contract. I got the second one "barely used" a couple of months ago and I'm pretty sure it was a Bell pay as you go phone as this is what the person told me. He said all of the phones they get are always Bell. He would have no reason to not be truthful especially since I had a Telus and he knew I would need to unlock it I purchased it because my existing phone was acting up and also the screen was pretty severely cracked.
What I found odd is that when I put the Telus SIM card in the phone, I didn't get any message that the phone was locked. I was immediately able to dial a number and the call went through. I could also send and receive txt's. The phone also says Telus at the bottom of the screen. What is problematic however is that 4g won't work. When go into the new phone under network mode info this appears "GSM/WCDMA(Auto Mode)" But when I look at my original phones network mode I get "GSM/HSPA(Auto Mode)" So, I'm thinking this is probably quite obviously the reason that 4g isn't working and I have no data available unless I connect to wifi. This won't do.
So, where do I go from here? I'm thinking i need to unlock the phone in order to do something about this probably? Or is there something else I can do to pick up the HSPA instead of WCDMA? I'm so irritated by this. It feels like it should be a simple fix since both of these phones are SGH-989d's but maybe it's not. Lastly, and I don't think this makes much of a difference. My old phone is 4.0.3 version and my newer one is 4.1.2.
Thanks and I'm hoping someone knows what or if I can do anything or if I should just give up. I really hate giving up so I'm hoping it's not the latter of the two options.
Moved to Q and A, and, please do not bump within the same 24 hour period.
Xmariner said:
To state clearly at first. The new phone in question was not rooted when I purchased it, but I did root it. So the phone is rooted but not unlocked. I thought I should also add that I'm in Atlantic Canada.
As usual, I always seem to have an issue that I look and can never seem to find the answer. This leaves me asking a question that I'm hoping there isn't already an answer to because I know people hate that.
So here goes. I have 2 SGH-989D phones. One I got new 18 months to 24 months ago with my re-negotiated Telus contract. I got the second one "barely used" a couple of months ago and I'm pretty sure it was a Bell pay as you go phone as this is what the person told me. He said all of the phones they get are always Bell. He would have no reason to not be truthful especially since I had a Telus and he knew I would need to unlock it I purchased it because my existing phone was acting up and also the screen was pretty severely cracked.
What I found odd is that when I put the Telus SIM card in the phone, I didn't get any message that the phone was locked. I was immediately able to dial a number and the call went through. I could also send and receive txt's. The phone also says Telus at the bottom of the screen. What is problematic however is that 4g won't work. When go into the new phone under network mode info this appears "GSM/WCDMA(Auto Mode)" But when I look at my original phones network mode I get "GSM/HSPA(Auto Mode)" So, I'm thinking this is probably quite obviously the reason that 4g isn't working and I have no data available unless I connect to wifi. This won't do.
So, where do I go from here? I'm thinking i need to unlock the phone in order to do something about this probably? Or is there something else I can do to pick up the HSPA instead of WCDMA? I'm so irritated by this. It feels like it should be a simple fix since both of these phones are SGH-989d's but maybe it's not. Lastly, and I don't think this makes much of a difference. My old phone is 4.0.3 version and my newer one is 4.1.2.
Thanks and I'm hoping someone knows what or if I can do anything or if I should just give up. I really hate giving up so I'm hoping it's not the latter of the two options.
Click to expand...
Click to collapse
The phone is unlocked or you wouldn't of been able to make calls etc with your sim.
My guess as to the problem is that your Bell phone is not a SGH-T989D, it's actually a SGH-i757M or GT-I9100M, they are called Samsung Galaxy S2's but there are a few models of the S2 out there. To verify your model either go to Settings > About phone and check Model number, or pull battery and look under it for the model number. To my knowledge, Bell has never sold the SGH-T989D model of the S2.
Almite said:
The phone is unlocked or you wouldn't of been able to make calls etc with your sim.
My guess as to the problem is that your Bell phone is not a SGH-T989D, it's actually a SGH-i757M or GT-I9100M, they are called Samsung Galaxy S2's but there are a few models of the S2 out there. To verify your model either go to Settings > About phone and check Model number, or pull battery and look under it for the model number. To my knowledge, Bell has never sold the SGH-T989D model of the S2.
Click to expand...
Click to collapse
Thanks for your reply Almite. Unfortunately the phone is the SGH-T989D.. I know it's a weird problem I've got here.
I used to play around with satellites back in the day. One of the things we used to do with the boxes was to jtag the box, erase the memory from the primary chip and then flash it with a different STB's info. This would enable us to do some wonderful things.
Rooting and then unlocking seems like a similar process however I just don't want to flash the phone with something that is going to brick it. I guess I'm going to need to do something. This phone is no good to me this way. If I brick it, I brick it. What I would like from someone in the community would be to direct me to the easiest process to flash my phone with a telus ROM.
I have read A LOT and there are many opinions out there, but I'm thinking that there is probably a consensus on what is the best and easiest way.
Update
I have successfully installed Jedi Mind Trick using TWRP as it appeared to be the best stable one out there. Used Darksides superwipe and then installed JMT. Still have issue of GSM/HSPA on original phone vs GSM/WCMDA on the phone that now has JMT installed on. I must say, I'm pretty impressed with how easily it installed and the ROM itself however sadly it did not help my conundrum.
I'm thinking that there is probably a developer here up for a challenge that could probably assist me with my problem. I really would like to be able to pick up 4g on this phone, or It's pretty much useless to me. What I need to figure out is how I can change this phone to recognize the HSPA network instead of the WCMDA network as GSM does not appear to be relative to data. Not with Telus anyway it would seem.
Maybe this isn't even possible because it's hard coded into the phone or something. Anyone have any ideas?
Last update unless anyone has any ideas
Xmariner said:
I have successfully installed Jedi Mind Trick using TWRP as it appeared to be the best stable one out there. Used Darksides superwipe and then installed JMT. Still have issue of GSM/HSPA on original phone vs GSM/WCMDA on the phone that now has JMT installed on. I must say, I'm pretty impressed with how easily it installed and the ROM itself however sadly it did not help my conundrum.
I'm thinking that there is probably a developer here up for a challenge that could probably assist me with my problem. I really would like to be able to pick up 4g on this phone, or It's pretty much useless to me. What I need to figure out is how I can change this phone to recognize the HSPA network instead of the WCMDA network as GSM does not appear to be relative to data. Not with Telus anyway it would seem.
Maybe this isn't even possible because it's hard coded into the phone or something. Anyone have any ideas?
Click to expand...
Click to collapse
Spent almost an hour on phone with Telus tech support. he explained that WCMDA should work fine as that and HSPA are essentially the same thing. Went through several settings changes and edits with him. In the end, he was stumped. The changes we made should have worked but did not. Therefore I supposed I have no choice but to give up. Guess I'll give the phone to my daughter as i don't want her to go online without wifi anyway.
Same issue
My wife recently cracked the screen on her Rugby Pro so I picked up a slightly used Koodo T989D and plugged in the SIM card. I had the same thing happen. Phone booted, made calls, all seemed well. The next day she realized she had no data connection. I rooted the phone, flashed Telus radio, tried different ROMs, even purchased the unlock code for it hoping for a fix. I can't seem to find anything that will allow this phone data connection of any type other than Wi-Fi. I would really appreciate any ideas or information that anyone has on this topic as I'm running out of ideas and buying another replacement isn't an option.
---------- Post added at 09:22 PM ---------- Previous post was at 08:32 PM ----------
Xmariner said:
To state clearly at first. The new phone in question was not rooted when I purchased it, but I did root it. So the phone is rooted but not unlocked. I thought I should also add that I'm in Atlantic Canada.
As usual, I always seem to have an issue that I look and can never seem to find the answer. This leaves me asking a question that I'm hoping there isn't already an answer to because I know people hate that.
So here goes. I have 2 SGH-989D phones. One I got new 18 months to 24 months ago with my re-negotiated Telus contract. I got the second one "barely used" a couple of months ago and I'm pretty sure it was a Bell pay as you go phone as this is what the person told me. He said all of the phones they get are always Bell. He would have no reason to not be truthful especially since I had a Telus and he knew I would need to unlock it I purchased it because my existing phone was acting up and also the screen was pretty severely cracked.
What I found odd is that when I put the Telus SIM card in the phone, I didn't get any message that the phone was locked. I was immediately able to dial a number and the call went through. I could also send and receive txt's. The phone also says Telus at the bottom of the screen. What is problematic however is that 4g won't work. When go into the new phone under network mode info this appears "GSM/WCDMA(Auto Mode)" But when I look at my original phones network mode I get "GSM/HSPA(Auto Mode)" So, I'm thinking this is probably quite obviously the reason that 4g isn't working and I have no data available unless I connect to wifi. This won't do.
So, where do I go from here? I'm thinking i need to unlock the phone in order to do something about this probably? Or is there something else I can do to pick up the HSPA instead of WCDMA? I'm so irritated by this. It feels like it should be a simple fix since both of these phones are SGH-989d's but maybe it's not. Lastly, and I don't think this makes much of a difference. My old phone is 4.0.3 version and my newer one is 4.1.2.
Thanks and I'm hoping someone knows what or if I can do anything or if I should just give up. I really hate giving up so I'm hoping it's not the latter of the two options.
Click to expand...
Click to collapse
So I hunted and finally answered this question we both had. Go to Settings:Wireless and Networks:Mobile Networks:Access Point Names.
Since my phone was a Koodo phone it lists Koodo SP. Click the menu button then New APN. Name it whatever you want. I called it Telus. APN is sp.telus.com. Scroll down to MMSC and type http: // aliasredirect. net/proxy/mmsc (without the spaces. They won't let me post a 'link'). Under MMSC proxy type 74.49.0.18. MMS port is 80. MCC is 302. MNC is 220. APN type should be Internet + mms. Click the menu button and save. Click the circle behind your newly created APN and wait. In under 30 seconds I had 4G connection.
Hope this helps you.

best buy won't update unlocked phones on different carriers

hey xda family long time no see, im just curious to see if anyone knows about this. i went to best buy to update my unlocked att note 4 since im on metro pcs and can't get the update because im on different carrier. when i went to the desk and told the guy what i wanted to do, he said no problem and i handed him my phone. when he plugged it up he had asked if it was an unlocked device and i said yes, he then asked if i had att i said no im on metro. he then said unfortunately because of best buys policy that he can't update my phone because i wasn't on att which didn't make any sense because i did the same thing with my last note 4 that unfortunately got watered damaged. apparently somebody with an unlocked t mobile phone tried to update through best and it hard bricked his phone, which is odd to me because the only way you could HARD brick your phone is unless he had the exynos note 4 or he had tried to install official software on a modified device which is a big no no. he kept telling me that because im on metro pcs i'd have to go to odin and reflash my note 4 back to att which made no sense because it's still an att phone it's just on a different carrier. i do know as long as you install the right firmware for your device in this case an update file thats exclusively for sm-n910a devices. what gives did i run into a clueless rep? im thinking of going to another best buy and just taking out the sim card and play stupid when they bring up the word unlocked. sorry for the long paragraph folks
omnipotent93 said:
hey xda family long time no see, im just curious to see if anyone knows about this. i went to best buy to update my unlocked att note 4 since im on metro pcs and can't get the update because im on different carrier. when i went to the desk and told the guy what i wanted to do, he said no problem and i handed him my phone. when he plugged it up he had asked if it was an unlocked device and i said yes, he then asked if i had att i said no im on metro. he then said unfortunately because of best buys policy that he can't update my phone because i wasn't on att which didn't make any sense because i did the same thing with my last note 4 that unfortunately got watered damaged. apparently somebody with an unlocked t mobile phone tried to update through best and it hard bricked his phone, which is odd to me because the only way you could HARD brick your phone is unless he had the exynos note 4 or he had tried to install official software on a modified device which is a big no no. he kept telling me that because im on metro pcs i'd have to go to odin and reflash my note 4 back to att which made no sense because it's still an att phone it's just on a different carrier. i do know as long as you install the right firmware for your device in this case an update file thats exclusively for sm-n910a devices. what gives did i run into a clueless rep? im thinking of going to another best buy and just taking out the sim card and play stupid when they bring up the word unlocked. sorry for the long paragraph folks
Click to expand...
Click to collapse
Most of those reps are clueless.
Your phone is an AT&T version and is running AT&T firmware. Just tell them that it's an AT&T phone. Don't mention that you're using an unlocked device on Metro. I think you may have confused him by telling him that. He may have thought your Note 4 was a Metro version and running Metro firmware. They only have AT&T, Verizon, Sprint, and T-Mobile firmware. They may have international too, but not sure. He probably was afraid to flash AT&T firmware onto what he thought was a Metro phone.
Again... clueless. I went there once and the idiots refused to work on my phone (needed to be reflashed and I couldn't get Odin to work) because I was using Nova Launcher. The guy said it wasn't Samsung's home screen and that I had hacked the phone to change it. Well, first, the 910a isn't rootable, and second, a launcher has nothing to do with root.
Sent from my SAMSUNG-SM-N930A using Tapatalk
So you have a N910a unlocked on Metro PCS and you wanted to have the software updated to the latest? And you brought it into a Best Buy store to have them update the software? (sorry, your post is hard to read in a big block form like that).
May I ask: have you thought to try the update yourself? Even if you pulled the SIM card and connected via Wifi...
HotShotAzn said:
So you have a N910a unlocked on Metro PCS and you wanted to have the software updated to the latest? And you brought it into a Best Buy store to have them update the software? (sorry, your post is hard to read in a big block form like that).
May I ask: have you thought to try the update yourself? Even if you pulled the SIM card and connected via Wifi...
Click to expand...
Click to collapse
You need an AT&T sim card in order to get the update OTA. That, or the Odin files. Are the latest Odin files uploaded? If so, then that'd be the easiest (DIY) solution here. Make sure to back up your files though.
Sent from my SAMSUNG-SM-N930A using Tapatalk
thank you all for your input, i managed to get the latest firmware through another best buy that was within reasonable driving distance. however, i still think att sucks for not allowing the bootloader to be unlocked and for being slow with marshmallow it's ridiculous. if att had the image files posted somewhere i wouldn't mind doing it myself.
omnipotent93 said:
hey xda family long time no see, im just curious to see if anyone knows about this. i went to best buy to update my unlocked att note 4 since im on metro pcs and can't get the update because im on different carrier. when i went to the desk and told the guy what i wanted to do, he said no problem and i handed him my phone. when he plugged it up he had asked if it was an unlocked device and i said yes, he then asked if i had att i said no im on metro. he then said unfortunately because of best buys policy that he can't update my phone because i wasn't on att which didn't make any sense because i did the same thing with my last note 4 that unfortunately got watered damaged. apparently somebody with an unlocked t mobile phone tried to update through best and it hard bricked his phone, which is odd to me because the only way you could HARD brick your phone is unless he had the exynos note 4 or he had tried to install official software on a modified device which is a big no no. he kept telling me that because im on metro pcs i'd have to go to odin and reflash my note 4 back to att which made no sense because it's still an att phone it's just on a different carrier. i do know as long as you install the right firmware for your device in this case an update file thats exclusively for sm-n910a devices. what gives did i run into a clueless rep? im thinking of going to another best buy and just taking out the sim card and play stupid when they bring up the word unlocked. sorry for the long paragraph folks
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Click to collapse
That is not cool. Call Samsung on them. I wasn't even questioned either time. Samsung referred me to the samsung experience at Best Buy in the first place.

Sprint Galaxy S6 (G920p)

So I have contacted spring 20 times, they have confirmed my SM-G920p is domestically unlocked. Getting a sim from AT&T and it says invalid Sim. I've searched everywhere, some forums say do a paid service (im fine with) others say unlocking from sprint works....which is obviously doest for my phone.
Anyone actually sucsefully unlocked a spring galaxy s6 (g920p.20) and used it on AT&T network? If so can you give me the details?
Thanks!
Question. Why on this phone in the network mode does it have options to use CDMA, LTE/CDMA, GSM, GSM/UMTS?
GSM AT&T works fine Idk why ppl say it doesn't work I have H2O which uses AT&T and I get LTE. Use a website called willmyphonework to find answers on stuff like this
This is the first website I've created to post about this topic. I've spent the past few days researching and testing out things. So far I've only found a few post online saying it works....I've not heard much about the sm-G920P NOT working on other networks. Also the phone itself is not made for CDMA or GSM ONLY.
One thing is for sure, one of my sm-G920p is domestically unlocked from Sprint. They also gave me a MLS or MSL# or whatever even though I dont think it matters. This phone will not take any AT&T sims. It says invalid sim.
With another sm-G920p, I rooted it and unlocked it another way...obviously not involving sprint. I will test it this evening to see if it accepts AT&T's sim card and will post my findings.
The whole reason for this is we have a business that goes though phones due to physical damage. I have a couple left over phones that I've replaced the screen on myself. I would like to let my sister and fiance use the galaxy S6s as they have old phones! All of these phones have been paid in full FYI and our account is in great standing.
Okidoki. I have spent some time working on unlocking a Spring Galaxy S6 SM-G920P with stock firmware ending in QB1. At first I found out that US carriers now have to unlock your phone if you ask. At first I went that route as it seemed legit. I called Spring and got a guy on the phone from tech support. I gave him the DEC# on the back of the phone and he said "Great thanks.....its unlocked." I though sick!...went to AT&T next day and got a nano sim activated. Once entered the phone read "Invalid Sim". I got back on the phone with sprint quit quickly while at AT&T. The lady said she had to send in a ticket to get it unlocked and the guy before definitely did not unlock it. Went home and went online again. Next day the lady called me at 11am and said it was domestically unlocked. I called back an hour later and talked to someone else confirming it was unlocked. Went to sprint, installed new activated sim...."Invalid Sim". Next thing was to root it and try unlocking it myself.
I found out how to root the phone and install custom firmware and whatnot. Its fairly easy, similar to computer basics. Once that was done I unlocked the phone with a little help which was not hard to find. I went to AT&T and BOOM!!! Phone worked RIGHT away. I was blown away. The phone had voice, data, msg, voice mail 3g and lte. Had my fiance put in her google info.....FYI this is my fiances AT&T account and a spare S6 I had that i fixed the screen on. Anyway she put her google account into it and restarted the phone. At the "samsung" logo login little red letters at the top say something about FRP is locked. The way you bypass this is right after you unlock the phone you need to go into the developer options and enable OEM Unlock. This fixes the lockout. But to get back into the phone once you lock it out you have to re root the phone with its original firmware.
It has worked all evening. Thanks Jhoward you gave me that last little boost today to get it working. I know the SM-G920P phone works in every network so I have no idea why people think it can only work on one network. Something I did learn is that these are little computers.....pretty cool!
If anyone needs any more info pm me.
http://i.imgur.com/ch8TUWg.png
http://i.imgur.com/ijY1sed.png
They lie. It took me 5 calls and many hours to get one of my 2 s6 unlocked. There is some problem with original activation date on some of the phones.
They said both were unlocked but only one worked.... Until finally tech support fixed the activation date.
Now both work on T-Mobile very well
sprint is a little ***** when it comes to unlocking devices. i have never successfully unlocked a device from them. they will run circles of confusion around you just so you won't unlock.
G920P to GSM
localphit said:
Okidoki. I have spent some time working on unlocking a Spring Galaxy S6 SM-G920P with stock firmware ending in QB1. At first I found out that US carriers now have to unlock your phone if you ask. At first I went that route as it seemed legit. I called Spring and got a guy on the phone from tech support. I gave him the DEC# on the back of the phone and he said "Great thanks.....its unlocked." I though sick!...went to AT&T next day and got a nano sim activated. Once entered the phone read "Invalid Sim". I got back on the phone with sprint quit quickly while at AT&T. The lady said she had to send in a ticket to get it unlocked and the guy before definitely did not unlock it. Went home and went online again. Next day the lady called me at 11am and said it was domestically unlocked. I called back an hour later and talked to someone else confirming it was unlocked. Went to sprint, installed new activated sim...."Invalid Sim". Next thing was to root it and try unlocking it myself.
I found out how to root the phone and install custom firmware and whatnot. Its fairly easy, similar to computer basics. Once that was done I unlocked the phone with a little help which was not hard to find. I went to AT&T and BOOM!!! Phone worked RIGHT away. I was blown away. The phone had voice, data, msg, voice mail 3g and lte. Had my fiance put in her google info.....FYI this is my fiances AT&T account and a spare S6 I had that i fixed the screen on. Anyway she put her google account into it and restarted the phone. At the "samsung" logo login little red letters at the top say something about FRP is locked. The way you bypass this is right after you unlock the phone you need to go into the developer options and enable OEM Unlock. This fixes the lockout. But to get back into the phone once you lock it out you have to re root the phone with its original firmware.
It has worked all evening. Thanks Jhoward you gave me that last little boost today to get it working. I know the SM-G920P phone works in every network so I have no idea why people think it can only work on one network. Something I did learn is that these are little computers.....pretty cool!
If anyone needs any more info pm me.
http://i.imgur.com/ch8TUWg.png
http://i.imgur.com/ijY1sed.png
Click to expand...
Click to collapse
Hello localphit, can you help me do the same with my Galaxy S6 G920P. Mines in currently on android 7.0 Patch January 1, 2018. Appreciate all the help that you can give.

Verizon unable to unlock my SM-N976V phone

Please move it to correct forum if this is not the right one.
I bought Samsung Galaxy Note Plus 10 5G in Oct 2019 from Verizon (all paid). I ported my number from Verizon to AT&T 5 days ago (after 9 months of using it with Verizon). My account is disconnected from Verizon and I have received the port is completed e-mail from them. AT&T has confirmed that the sim is fully activated.
But Guess what, When I put the sim in mobile it says another carrier is not allowed to be used on this phone ! For last 4 days I have wasted more than 10 hours staying in Verizon store and on call with customer care and they have no idea what is going on ! Customer care says the phone is fully unlocked. After 3 days of constant trying one of the representative said you have to reactivate the old account again and then try unlock again from the backend (which I have no control of !) . And, guess what, none of those good people are reactivating the account.
Verizon store guy doesn't help, just says talk to customer care and customer care says its unlocked so they can't do anything.
What should I do ?
About the only things I can suggest are:
If you have flashed firmware that is not the Verizon carrier firmware then flash it back to Verizon carrier firmware.
If you have disabled any carrier applications on the phone please re-enable them.
Make sure they are attempting to unlock the phone while you are within native Verizon coverage
I am not sure if a non-carrier branded firmware exists for the Note 10+ 5G, but non-carrier firmware has caused network unlocking issues before. The second idea is just in case you may have used a package disabler and disabled something necessary for network unlocking the phone. Last one is from past experiences where I wasn't able to complete phone activation because I wasn't within Verizon's native coverage area. The coverage I was in, while not roaming (or extended area) was not actually native Verizon coverage... I would tend to believe this would possibly be the same for network unlocking the phone.
Otherwise get a hold of Verizon and hound them to get it unlocked. Not much else can be done really... If the phone qualifies for being unlocked they should unlock it.
Filed fcc complaint
I have filed FCC complaint. I never changed anything in the mobile (didn't even know firmware flash was a thing until now when I started looking for solutions), used it for general purpose. I am in the same area where I bought it. Verizon store guy tried everything from simple reset to factory reset wiping everything out but nothing worked.
I have also ordered a prepaid Verizon sim. I will put that in and will try to get the phone unlocked.
I will post my results after 2-3 days.
Thanks for the quick reply !
scottusa2008 said:
About the only things I can suggest are:
If you have flashed firmware that is not the Verizon carrier firmware then flash it back to Verizon carrier firmware.
If you have disabled any carrier applications on the phone please re-enable them.
Make sure they are attempting to unlock the phone while you are within native Verizon coverage
I am not sure if a non-carrier branded firmware exists for the Note 10+ 5G, but non-carrier firmware has caused network unlocking issues before. The second idea is just in case you may have used a package disabler and disabled something necessary for network unlocking the phone. Last one is from past experiences where I wasn't able to complete phone activation because I wasn't within Verizon's native coverage area. The coverage I was in, while not roaming (or extended area) was not actually native Verizon coverage... I would tend to believe this would possibly be the same for network unlocking the phone.
Otherwise get a hold of Verizon and hound them to get it unlocked. Not much else can be done really... If the phone qualifies for being unlocked they should unlock it.
Click to expand...
Click to collapse
Got it resolved.
Final Update:
Since I had filed FCC complaint online, Verizon Executive Relations department contacted me and She was able to unlock from her side with the help of 'Technical Management' employee on call.
dagarwal82 said:
I have filed FCC complaint. I never changed anything in the mobile (didn't even know firmware flash was a thing until now when I started looking for solutions), used it for general purpose. I am in the same area where I bought it. Verizon store guy tried everything from simple reset to factory reset wiping everything out but nothing worked.
I have also ordered a prepaid Verizon sim. I will put that in and will try to get the phone unlocked.
I will post my results after 2-3 days.
Thanks for the quick reply !
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