I have tried everything but in vain ,I rooted this phone via the method described on this forum and worked through version 5.1.1 unlock boot loader and root and installed any custom rom but still on the network bar an X and checked the fone still says on CDMA. I need to Kow from the developers any chance to make this fone work on 2G or 3G GSM network band 900mhz and 1800mhz ,if yes what do I need to do to achieve this ,please guide me as this fone when it came first it was working on 910F version 5.0.1 firmware while in ODIN it was 910v until when I typed *#9090# when it started the problem when I wanted to update it. I WOULD NOT MIND TO BRING IT BACK TO THE WAY IT WAS BEFORE WHEN IT CAME TO ME AS LONG AS IT WORKS ON GSM NETWORK. RIGHT NOW I FLASHED THE ORIGINAL FIRWARE ,FONE BOOTED BUT WHEN HARD RESET IT SHOWS DM VERITY FAILED AND IMEI IS CHANGED, I HAVE Z3X ,OCTOPUS,ASANSUM, AND CHIMERA TOOL TO HELP ME SOLVE THIS. PLEASE PLEASE GUIDE ME
The N910V covers the 900 and 1900 MHz bands natively so that's not the problem. In fact, to use the N910V - just to be clear, that is the Verizon model of the Galaxy Note 4 so make sure that's what you've got 100% - can use 2G/3G modes without rooting or any customization of any kind because it's factory unlocked so the only reason it wouldn't work would be either a) there's a defect in the phone itself (after it's been factory reset) or b) there's a defect with the SIM card reader, potentially a broken pin someplace in the slot and that's somewhat tough to troubleshoot or repair simply and would require replacing the entire reader or perhaps even c) you're missing the APN data that is absolutely necessary to ensure things are going to work properly. From a technical standpoint the APN data isn't necessary for basic network connectivity aka making actual phone calls or receiving/sending SMS messages but it is absolutely necessary to get the data connection working for Internet access.
I would suggest you do this:
- put your SIM card into the phone, whatever one you're hoping to use for cellular and data service, I'm hoping you understand that the SIM card has to have active service on it - and I'm not talking about the phone itself: if your intention is to use the N910V with a GSM carrier then it doesn't matter if it was ever activated or not with Verizon because it's a carrier unlocked device
- find the N910VVRU2BPA1_N910VVZW2BPA1_N910VVRU2BPA1_HOME.tar.md5 pure stock 5.1.1 firmware and flash it with Odin (phone in Download mode, of course)
- don't do anything else with the phone except flash that firmware and as soon as it's done flashing boot into the factory recovery do a wipe - the easiest way to do this after the Odin flash is watch for it to reboot the first time which will go right into the factory recovery, as soon as that ends hold Volume Up + Home and it'll reboot right back into the actual recovery then do the data/cache wipe and then wipe cache separately just in case
- let the phone boot up normally, leave it alone for 15 minutes and I'm totally serious here, 15 solid minutes, don't touch it, just leave it alone and let it boot and settle for 15 minutes
- after 15 full minutes have passed, go into Settings - More networks - Mobile networks - Network mode and set it for Global if it isn't already - DON'T DO ANYTHING ELSE, NOTHING, DON'T CHANGE ANYTHING ELSE AT ALL, then let the phone sit for 15 minutes once again
Yes I know you're impatient, we all are sometimes, but this not one of those times, you have to leave the phone alone and let it settle for 15 minutes in the step and if you're not willing to do that you may never get it working like you want
What I've learned over time is that being impatient sometimes works against you and that some smartphones - most notably Samsung models in my experience - take time to get their network connectivity on occasion so you have to be patient here and let the phone handle "business" as it needs to do. Some phones are nearly instant with a connection, others need time, so be patient, have a cup of coffee or soda or water, read a book, do something for 15 minutes and don't touch that phone.
After 15 minutes take a look at it and you should have some network connectivity, at the absolute bare minimum it should be connected to your carrier and you can make a phone call or send a text message or call customer service (usually 611). If you don't have any service whatsoever at this point then go back into the Settings for Mobile networks and set the Network mode to LTE/GSM/UTMS and - yes, I know you hate this but it's got to be done - leave the phone alone for another 15 minutes.
If after this second waiting period for the network connection to happen it still doesn't get a connection for basic cellular use - no data yet, that might not happen till you put in the APN info if that becomes necessary but that's the next step only if you get the basic connectivity working - then there's something broken on the phone. As stated above if the SIM card has service, there's no logical reason the N910V won't connect to the network for making a phone call unless there's a defect in the phone itself, something is broken or something got configured in some manner in your attempts to get it working and you're possibly looking at a phone you might not be able to get working with your carrier.
If you've got basic cellular service working but no 2G/3G/HSPA+/4G LTE service showing (that's the data connection and not the cellular which shows the signal bars meaning you are on the network) then you need to put that APN data in manually since the phone doesn't seem to pull it from the SIM card as expected. That's a step you'll have to take care of on your own as I don't know your carrier or the specifics of the APN configuration which I'm sure you can find at your carrier's support website.
Anyway, give that a shot. Best advice: stop mucking around with all the rooting/recovery/ROMs and get the phone working FIRST on the carrier's network using the pure stock ROM - once you can do that then you can worry about doing all the neat stuff and customizing things later on. If I had to guess you jumped the gun, missed something in all the experimentation you've done so far and just basically been too impatient in some situations and not let the phone settle long enough to get that connection. I've done that many times on some phones and got pissed about it only to discover that when I stopped messing with the device and just left it sitting all by itself that magically the network connection kicked in after a period of time, usually no more than 15 minutes.
You apparently have a lot of smartphone modification hardware and I'm betting if you messed with it you broke it, now it's up to you to fix it.
Hope this helps...
Related
Hi all,
My problem is that my Galaxy S3 (i747M) cannot make or receive phone calls*, but I can send or receive most SMS**, and my LTE data is fine***. I've tested to ensure it's not my account with Rogers, or my SIM card. I took my SIM card and put it in two other phones, and both worked just fine (one Rogers, one Telus). Putting their SIMs into my phone and the same problem as with my own SIM in my phone. I have unlocked my S3 using the 4.2 trick, but I didn't have this problem back then. I'm assuming this isn't causing me issues now.
I used asterisks because each of the above has some additional details:
* I cannot reliably make and receive phone calls. For example, I can try calling the same phone number (home) 10 times, and it may only go out once. From my home phone I can try calling my cell phone 25 times and only get through once. Every time my calls out fail, it either sits at "Dialing..." for 30 seconds before ending in "Call Ended 0:00" or just immediately drops the call without the 30 seconds of "Dialing...".
** Most of the time I can send and receive SMS from any other cell phone. Occasionally a message won't send out even though I have 4/5 signal bars. Resending the message works. Not sure if this is related to my issues with calling.
*** LTE data is fine (using LTE APN). Switching away from LTE to just 4G/H+ and data is a bit spotty. Sometimes it connects, sometimes it doesn't. LTE always connects just fine.
I've tried all sorts of flashing and reflashing:
- problem started when I was on S3Rx 4.0, but I never thought much of it because most calls went through fine
- problem got worse when I was on Lollipop (CyanideL), progressively so
- used Odin to flash stock NF2 (downloaded from Sammobile site), was no different than when I was on Lollipop (CyanideL)
- used Kies to flash stock N__ (forgot exactly which one), still no different
- flashed different bootloaders and modems
- while in stock NF2 firmware, went into *#2263# and made sure it was set to Automatic.
So any ideas what problem this is? I just find it extremely odd that calls almost always fail, yet SMS and data aren't a problem. Of course, when my SIM is in another phone (Nexus 5 on Telus, Galaxy S5 on Rogers) I was able to do everything without any problems: calls, SMS, and data.
Thoughts as to what this could be? Is this a hardware issue? If it's software, what could it be? My warranty's out and I'm willing to flash anything or pop the phone open (already have to make sure antenna isn't disco'd).
Thanks!
Have you tried the fob1 firmware? It's the latest kk release for the Canadian s3.
Yup, that's the firmware I'm currently on. Downloaded it from SamMobile, flashed via Odin. I'm literally running the stock firmware right now, no root, only TWRP as recovery so I can more easily flash any modems or bootloaders (vs using fastboot).
OK, so further to this issue, I contacted Rogers technical support. Spent about half an hour on the phone with the tech, went through a few things:
1. He reset my voice account, didn't help
2. Had me search in the "Network Operators" list, no networks ever show up
3. Had me use my old phone (Nexus S, network unlocked) to ensure that it's not my account. All tests with the Nexus S went fine.
4. Had me test different network bands. Bingo!
The phone can place and receive calls when I set the network mode to 2G only (or GSM only). 3 out of 3 calls came in, 3 out of 3 calls went out. Then again later we tested incoming and outgoing calls, still on the 2G network.
So technically problem solved, but realistically not really. I am able to get voice, text, and data (solved!), but I'm paying for a LTE data package and should at least be getting 3G mad.
Any idea why my phone would be working on the 2G network and not on the other ones (3G, H+, LTE)?
This is crazy but the baseband and modem are one fob1? I know you said you flashed a stock rom but it may be worth checking.
My niece is using an unlocked bell s3 on Rogers and she has no problem with voice, data, or text when setting the network to wcdma only or wcdma/LTE.
Yes! Both Baseband (modem) and bootloader are the same. I just downloaded Phone Info (Samsung) to check this, and they both report being FOB1.
Now here's something that's irking me quite a bit. I only just discovered this and do not know if it is of consequence to my problem: I have no PDA or CSC version and Latest Firmware is reporting "Not Found" in the Firmware tab of Phone Info. I've attached a screenshot so you can all see what I mean. Is that normal?
Is phone running a custom rom?
That's right, I just restored a NANdroid of CyanideL (5.1.1).
So this also happens on a stock fob1 rom too?
I am almost tempted to say it may be a hardware issue.
That's right. This happens with a custom ROM (e.g. CyanideL, 5.1.1) as well as a stock ROM that's been freshly flashed via Odin (FOB1, 4.4.2). When flashing with Odin, I'm doing a full wipe via TWRP. Wiping /data partition as well.
I'm inclined to believe this is also a hardware issue, but it just seems bass ackwards in that I can get everything (minus LTE) working while on 2G, but I lose voice access if I move up beyond 2G. I could understand if I couldn't get any voice, SMS, or data, but that going down to 2G solves all my problems... it just seems weird!
Can you try the phone on another carrier? This would probably be the final test you could do. Sounds like you have tried everything.
Yup, tried that earlier on, when I tested my SIM card in some friends' phones (one on Rogers, one on Telus), and while doing that also tested their SIM cards in my phone. With their SIM cards in my phone, the same problem happens as when I'm using my own SIM card.
Gah! It's frustrating, but something I can live with for now until I can get a new phone. I just still can't get over the "everything's fine" on 2G, but moving up to 3G or beyond and I completely lose voice. A colleague of mine has the same phone and the same plan, bought only a month or two before I bought mine. He's got no problems at all with LTE and voice. Although he was on the unofficial CM 12.1 nightlies (5.1.1), I don't think that would have any perceivable difference than when I was on CyanideL 15.x (also 5.1.1).
Hey So I'm having some issues after sim unlocking phone;
I sim unlocked my phone and then flashed it back using odin to stock and still having issues.
Issues:
-While it says LTE the device does not seem to be getting actual LTE as doing a speed test revealed about 2-3 mbps
-When calling someone, they can rarely hear me
-When someone calls me I can't answer the call, I swipe to answer and the phone hangs then shows the call screen again and I try to answer the second time it usually disconnects the call
-When I am able to answer the call no audio and the call automatically hangs up after about 5 seconds
I know that the microphones are good as I can make calls using FB Messenger and don't have any issue since it's using the data.
Steps I have done:
-Flashed back to stock
-Factory Reset after Flash
-Manually set network to: AT&T
-Disabled WiFi calling
-Set network to 2g/3g to see if the LTE was causing the issue
....none of this seems to have made any difference in the issue.
Any recommendations, suggestions, in-sight would be great! Wondering if I should just sell this and get an ATT phone or if I can fix the issue.
I had read in some thread that someone had to get a new sim but from what I remember of the thread they weren't seeing anything data or the ability to select a operator. The phone the SIM originally came from was a iPhone 5C if that makes any difference.
This worked for me:
1) Use an "activity launcher" app to launch Device Info com.android.settings.radioinfo (there is one by that name in the Play Store that I use; Alternatively, Nova Launcher has a handy widget function to launch activities.)
2) Once Device Info/Radio Info is open, there is a drop down menu mid-way down the page that allows you to select various combinations. The default is intended for TMOBILE networks.
For AT&T, select "LTE/GSM (Auto)"
3) Reboot the phone
While the Radio Info settings updated to "LTE/GSM (Auto)" did immediately resolve the mobile data issues on AT&T for me, checking your active APN (that's it's using the AT&T Nextgen APN) might be worthwhile as well.
The program I actually tried to do this with was "4G LTE Switcher"; I had used it back with my XT912(Droid Razr Maxx) because it had lots of problems with custom roms and not connecting to the network and I tried those methods:
1. Turn on airplane mode and turn back on to establish connection after power on
2. Turn on airplane mode, power cycle
3. 4g Switch/ Turn data to CDMA only and then back to LTE (when was on verizon)
Things I've noticed:
1. If I'm on wifi the call audio never works even though I have disabled wifi calling
2. If I'm on LTE the call never works and for some reason like the phone doesn't want to switch over to HSPA
3. If I'm on HSPA+ it works more often on incoming calls than outgoing
I got a new sim card from ATT and had them add the IMEI into the system but didn't help at all.
Nougat should be out soon and hoping that I can get it fixed, going to try some rom flashing and CSC flashing to see if I can get a result out of it
I got my s6 edge plus in a trade, i was able to get it unlocked finally and was wondering if there is an unbranded rom that can be installed on the tmobile variant ? I have at&t as well.
I've tried everything, so hopefully someone can shine some light into this issue.
I bought a new (unused but from a 3rd party) Samsung Galaxy A50 (A505U) Verizon branded and unlocked. Got a sim card from Visible and went to get it connected. Nothing. WiFi works, everything works, but no cell service.
Here's what I've done (some multiple times)
- reset everything to include network settings, hard reset, etc
- removing the sim, resetting, putting the sim back in. I always get a notification saying the sim card is removed and it goes away when I put the sim back in, so it is recognizing a sim card is in there
- switched sims with another Visible phone/sim and nothing. Both sims worked on other phone but neither worked on this phone
- tried getting into the hidden menus but none of them worked
- talked to Visible tech support which upgraded the issue to the highest level and concluded it's the phone
- Visible believes it's the APN settings but I cannot edit current APNs nor add new ones (grayed out)
- manually add networks, I can see Visible, TMobile, ATT, and some weird numbers, but when I try to connect to Visible it says cannot register on the network, other networks say the sim is not setup for them
- sometimes I get the icon that shows all bars but they're grayed out, sometimes it shows 3-4 bars lit up, sometimes even shows a 4G icon, but mostly the grayed out bars
- sent the phone to Samsung, they tested it and found no faults, guess the hardware is good, ruled that out.
- got into dev options but I'm aware the OEM unlock is not on option on the A505U, not sure if I can change anything else.
I'm out of options. Any other ideas? I think if I can either get into the hidden menus I'll be able to diagnose it better, or if I can somehow change the APN settings I'll be able to set it up. Visible tech support thinks it's the APN, which makes sense to me, but I can't change them.
Any help is greatly appreciated.
I was able to get into the CSC change function, there's not many there, but would changing the CSC help? If so, which should I go to?
I've had a similar issue. Was working fine until the Android 10 update arrived. Since then, it won't work with my total wireless sim card. Tried 3 different sim cards on it, but nothing. Can't add it do anything with the APN, and getting into the phone info hidden menu doesn't help any. I suspect it's a bug in the new firmware or something like that. Works fine with a Verizon SIM though.
Update: Verizon SIM no longer connects to phone. Still works with LTE data. It seems that the CDMA radio quit working with the update to Android 10. Must have been collecting to the Verizon network with VoLTE until it updated the provisioning or something.
So, I finally figured out a workaround for mine that was able to get both data and voice networks to connect while using total wireless, which is an MVNO on the Verizon network. I pretty much narrowed it down to being an issue with the modem not working with CDMA. What I did was download the last Android 9 firmware and flashed just the modem (file starts with CP_) using Odin. After that, I rebooted it and voila! It connected.
Just thought i would give my experience as i just delt with this. i got my 10 update this morning nd let it update and apon a reboot i lost all mobile connection, a signal bar would show for a few seconds looking like it was trying to lock in a signal and it would go back to the ⌀ symbol. i tried flashing the android 9 modem from 2 different updates and neither fixed it. i just decided to order a new phone as i feel its time anyways. my next attempt will be to flash android 9 back using odin then just throw this phone up on craigslist
edit: odin successfully flashed back to android 9 and signal now works again. so if anyone has this issue you can try the method above of just flashing the modem and if that doesnt work you can go back to 9 and restore functionality of verizon mvno's
darkmage1991 said:
Just thought i would give my experience as i just delt with this. i got my 10 update this morning nd let it update and apon a reboot i lost all mobile connection, a signal bar would show for a few seconds looking like it was trying to lock in a signal and it would go back to the ⌀ symbol.
Click to expand...
Click to collapse
Out of curiosity, which carrier are you using?
TJay99 said:
Out of curiosity, which carrier are you using?
Click to expand...
Click to collapse
Visible
samsung a50 not connecting to VZW towers (red pocket)
My phone is doing the exact same thing and while I can appreciate how you resolved the issue it doesn't make much sense to me.
I use Red Pocket for my network. (Which uses Verizon towers - I use the CDMA Sim)
Before this major update to 10 my phone worked flawlessly. Now it won't connect to the network much like you guys have stated in this thread. Mine will connect intermittently for like 3 or 4 min tops and then get kicked off the tower and will actually not show any bars (Circle with a line through it) to show no service for about 10 or so minutes then restart the whole process.
I also have a work phone (2nd phone) that is directly tied to the verizon towers on the verizon network. If I take the sim out of that phone and put it in my samsung a50 the samsung a50 is happy and can make phone calls, send texts, and stays on the vzw towers with no disconnects.
If I take my red pocket sim card and place it in my work phone that phone also works just fine - send messages, make phone calls, and stays on the vzw towers with no disconnects. (work phone = iphoneXR - it's free, sue me)
Even though reverting the modem obviously fixes your issue I do not think that is the actual problem. It also doesn't seem that a third party carrier is being randomly booted off the towers, it seems to be a glitch with third party carriers using third party sims utilizing this new android 10 software that VZW towers do not like.
Which obviously points to an issue with Samsung's latest software not being compatible with third party carriers.
I can't seem to contact Samsung in a direct manner to resolve this issue as they want me to take it to a third party store to have it looked at. I spent 2 and half hours with tech support from red pocket and they came to the conclusion that VZW was doing "upgrades/maintenance" to their towers in my area. (whatever that means.
Any ideas on how I can contact Samsung directly to detail this issue to them? I really do not want to have to root my phone in order to use odin to set my modem back to version 9 as I'm hearing that doing so voids all kinds of implied warranties with the phone and it's only 6 months old.
Appreciate any help that you guys might be able to steer me towards.
Thanks.
Before this major update to 10 my phone worked flawlessly- They Told you the answer, Odin # 9 or if its under warranty take it back Good luck.
My phone (SM-A505U) wasn't even working on visible before android 10.
See my post at the end of this thread: https://forum.xda-developers.com/ga...official-firmware-t3955727/page2#post83845605
I have that problem too. Where I can download v9. I got the Odin.
Hi all, I'm new, so forgive me if this is in the wrong section.
I have two Note10+ I got from ATT both with clean IMEIs. I used a factory unlocking service where they send you the code to unlock the phone. The second phone I unlocked worked with no issues. The first one is what has problems. It unlocked however I had PIA VPN active when I unlocked it and it didn't shut down the same way as the other one.When I came back up, it now says Mobile network not available, gives me bars and then says emergency calls only, or flashes between the two.
Steps I've taken to troubleshoot:
Network and factory data resets multiple times
Changed the sim at T-Mobile, where it worked briefly but the boot up screen never changed from at
The phone is clean on every IMEI checker I have used. I got it working once for about a minute after i went to T-Mobile (it worked and then stopped again). Both phones are from the same ATT account
Mainly I want it to find the signal and download the carrier settings so it doesn't have the fugly AT&T bloatware.
I suspect it may have glitched because the pia app prevented it from shutting down and running some process. Is there a way to force it to "re-unlock" so to speak? Or do I now have an expensive paperweight?
Hi so after I fixed a customer's note 10 plus that had a completely borked and shattered display I decide to put my SIM card in it and restart the device to make a test phone call to make sure everything works before calling the customer telling him his phone is ready. Everything checks out however after I started to notice that the T-Mobile boot screen gets replaced with the Verizon boot screen some junk apps download automatically. Also an error message pops up saying "This is not a Verizon SIM card in this device" whenever a non Verizon sim card is in the note 10 plus which I couldn't get rid of doing everything in the software troubleshooting book (reset network settings, change some cellular settings, factory reset, called cricket and Verizon, etc.) and nothing worked. Didn't really bother the customer but after a week the customer's phone loses all ability to make and receive phone calls/texts, every time you try it just says "this phone is not registered with this network." I tried factory resetting the device and even flashing T-Mobile firmware into it using Odin and still, same bull**** results as before. My question is, has this happened to anyone else here and if so has anyone ever fixed this problem? Uuugghhh.