Develop Bugs

Optimus G on Verizon

Is this possible? I currently have the AT&T version, and since it has an LTE radio, could I use that with Verizon? If not can I use the Sprint version on Verizon?

Carrier unlocking is currently illegal unless you have permission from your carrier. That aside, Verizion is CDMA so it wouldn't work.

No as it has the wrong bands for lte besides what the post above said!
Sent from my LG-LS970 using Tapatalk 2

I don't even think you could use the Sprint version in Verizon, at least not on lte. As far as I know, Verizon phones use some cards to connect to lte. Sprint phones do not.
Sent from my SPH-L710 using Tapatalk 2

keekah said:
I don't even think you could use the Sprint version in Verizon, at least not on lte. As far as I know, Verizon phones use some cards to connect to lte. Sprint phones do not.
Sent from my SPH-L710 using Tapatalk 2
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Click to collapse
Sprint actually requires a UICC(sim card) for LTE... ours is just embedded into the device so you can't remove or swap them(easily).
But you are correct that Sprint LTE devices would not work on Verizon if you wanted LTE.
Talk/Text/EVDO is cross-compatible on all cdma phones/networks as long as the manual programming is done properly.
I'd like to remind Lokifish Marz that only devices purchased on or after Jan 26 2013 are held to this... and many of us purchased the Optimus G prior to this date. Also the CDMA unlock rules are even more grey than the GSM rules. Manually setting a data profile via ##DATA# to another data profile from another CDMA carrier has nothing to do with any "sim-unlock" or any secret methods to disable firmware security.

T-mobile S4 on AT&T network not getting LTE

I have an unlocked Galaxy S4 T-Mobile version but when I put AT&T SIM it doesn't get LTE. I thought the T-Mobile version had compatible LTE with AT&T. I have entered the right APN for AT&T though, anyone can help?

Have you tried to install the AT&T modem?
-Sent from my TMO Samsung Galaxy S4 using Tapatalk 2

Did you select the correct band? LTE? I had to switch it to get att LTE
Sent from my SGH-M919 using Tapatalk 2

hexproject said:
Did you select the correct band? LTE? I had to switch it to get att LTE
Sent from my SGH-M919 using Tapatalk 2
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Click to collapse
You changed in the settings? or you flashed a new modem?

Please read forum rules before posting
Questions and help issues go in Q&A
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Make sure your account has the 4g lte package. When you login to your att account should say like.
Data pro 4g lte.
If it says data pro 4g. Its not going to give you lte.
You need to have the imei of an att lte phone on your account then it will work.

I am sure that my data plan has LTE, I took it out my iPhone5 and I got LTE on my iPhone5. I have enabled the LTE and put the right APN. Still no data connection, I have not flashed it to a different modem. So what's wrong?

How to select the right LTE band? I have only select the "Network mode" to LTE/GSM/WCDMA(auto connect). and APN is that all?

...

RanceedaW said:
Not to bash or anything, but I don't see why people try to use a phone for one carrier on another. Why not just sell (or trade?) your unlocked T-Mobile S4, for an AT&T S4?
You can still get retail price for the phone if it's in great condition. Then you wouldn't have this issue.
To me, I don't think whether it supports the same bands matter. Use T-Mobile on T-Mobile, AT&T on AT&T, Sprint on Sprint, so on and so forth.
Just my two cents.
Sent from my SGH-M919 using xda premium
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+1
I dont think its same hardware too.
Sent from my SGH-M919 using xda premium

RanceedaW said:
Not to bash or anything, but I don't see why people try to use a phone for one carrier on another. Why not just sell (or trade?) your unlocked T-Mobile S4, for an AT&T S4?
You can still get retail price for the phone if it's in great condition. Then you wouldn't have this issue.
To me, I don't think whether it supports the same bands matter. Use T-Mobile on T-Mobile, AT&T on AT&T, Sprint on Sprint, so on and so forth.
Just my two cents.
Sent from my SGH-M919 using xda premium
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Click to collapse
Whether or not he gets LTE on his phone is 100 percent dependant on the bands the phone supports.
Sent from my SGH-M919 using xda premium

Finally I got everything work on my M919, It is because AT&T has to change the data plan to LTE Android plan, I was on LTE iPhone plan.
Sent from my SGH-M919 using xda app-developers app

RanceedaW said:
Not to bash or anything, but I don't see why people try to use a phone for one carrier on another. Why not just sell (or trade?) your unlocked T-Mobile S4, for an AT&T S4?
You can still get retail price for the phone if it's in great condition. Then you wouldn't have this issue.
To me, I don't think whether it supports the same bands matter. Use T-Mobile on T-Mobile, AT&T on AT&T, Sprint on Sprint, so on and so forth.
Just my two cents.
Sent from my SGH-M919 using xda premium
Click to expand...
Click to collapse
its my understanding that the T-Mobile version is boot loader unlocked so they aren't all the same. I'm looking to do the same thing as the OP here soon once I research what if any implications there really are at the end of the day.

Screwbal said:
its my understanding that the T-Mobile version is boot loader unlocked so they aren't all the same. I'm looking to do the same thing as the OP here soon once I research what if any implications there really are at the end of the day.
Click to expand...
Click to collapse
Yeah, for LTE bands, AT&T version has less bands due to their spectrum restriction: 700 MHz (Band 17), AWS, IMT, IMT-E, while the T-Mobile version have all bands: 700 MHz (Band 17), CLR, AWS, PCS, IMT, IMT-E

tikoracer said:
Yeah, for LTE bands, AT&T version has less bands due to their spectrum restriction: 700 MHz (Band 17), AWS, IMT, IMT-E, while the T-Mobile version have all bands: 700 MHz (Band 17), CLR, AWS, PCS, IMT, IMT-E
Click to expand...
Click to collapse
Sounds like you already know more than me be reading that line I take it that the tmobile version on AT&T gives you full support across all of atts network but if you used the att version on tmobile you miss out.

Screwbal said:
Sounds like you already know more than me be reading that line I take it that the tmobile version on AT&T gives you full support across all of atts network but if you used the att version on t mobile you miss out.
Click to expand...
Click to collapse
Incorrect-all AT&T LTE phones support Band 4 and Band 17-AT&T is predominately Band 17 and has a small Band 4 footprint. T-Mobile's entire LTE footprint is Band 4. The real issue with a TMO S4 is whether or not you can roam on AT&T LTE network when no native T-Mobile network exists-especially since T-Mobile switched many of their legacy plans with put a serious limit or outright block on data roaming.

wazmo said:
Incorrect-all AT&T LTE phones support Band 4 and Band 17-AT&T is predominately Band 17 and has a small Band 4 footprint. T-Mobile's entire LTE footprint is Band 4. The real issue with a TMO S4 is whether or not you can roam on AT&T LTE network when no native T-Mobile network exists-especially since T-Mobile switched many of their legacy plans with put a serious limit or outright block on data roaming.
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Click to collapse
ahh ok. But with the case of getting of carrier unlocked and running a sim from att you're still fine right? Have to figure this out next if say someone gets the T-Mobile one, carrier unlocked can you install the myatt app from the play store or does it get blocked some how saying you aren't on a supported device?

RanceedaW said:
Not to bash or anything, but I don't see why people try to use a phone for one carrier on another. Why not just sell (or trade?) your unlocked T-Mobile S4, for an AT&T S4?
You can still get retail price for the phone if it's in great condition. Then you wouldn't have this issue.
To me, I don't think whether it supports the same bands matter. Use T-Mobile on T-Mobile, AT&T on AT&T, Sprint on Sprint, so on and so forth.
Just my two cents.
Sent from my SGH-M919 using xda premium
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To avoid 2yr contracts, and to get the fastest dl speed.

Hey guys
I read the whole thread and I'm using the $65 data plan which has 1GB on ATT which my questions is which one should I get T-mobile or the international unlocked to get LTE on ATT

lazawrd said:
Hey guys
I read the whole thread and I'm using the $65 data plan which has 1GB on ATT which my questions is which one should I get T-mobile or the international unlocked to get LTE on ATT
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Click to collapse
T-mobile.
Sent from my GT-I9300 using xda app-developers app

AT&T G3 on T-Mobile?

Is it possible to use the AT&T version on T-Mobile and get LTE? I compared the bands online and it looks like it should work, but wondering if anyone has actually tried yet?
Also read a post in another thread where the guy claimed that the AT&T version is unlocked out of the box... seems unlikely, can anyone verify? Thanks.

aimfire72 said:
Is it possible to use the AT&T version on T-Mobile and get LTE? I compared the bands online and it looks like it should work, but wondering if anyone has actually tried yet?
Also read a post in another thread where the guy claimed that the AT&T version is unlocked out of the box... seems unlikely, can anyone verify? Thanks.
Click to expand...
Click to collapse
it is not unlocked out the box my att asked for sim unlock code when i tried different sim but i would like to know abut using it on tmobile anyone have info on that?

I am curious about this too. I have an AT&T G3 coming tomorrow and would like to know if I will be able to put a T-Mobile SIM card in it

yes u can

But if it's not unlocked how can it work?
Sent from my iPhone using Tapatalk

Once you SIM unlock it you'll be fine. However you will not have VoLTE (coming soon), WiFi calling, or an unlocked bootloader. I'm not sure why you would even want to do this...
Other than those things... It works fine.

arcanexvi said:
Once you SIM unlock it you'll be fine. However you will not have VoLTE (coming soon), WiFi calling, or an unlocked bootloader. I'm not sure why you would even want to do this...
Other than those things... It works fine.
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Click to collapse
No variant of the g3 has a unlocked BL. Its cheaper than s T-Mobile version and it's the same other than the carrier bloat so why not pay less?
Sent from my LG-D850 using XDA Premium 4 mobile app

Pilz said:
No variant of the g3 has a unlocked BL. Its cheaper than s T-Mobile version and it's the same other than the carrier bloat so why not pay less?
Sent from my LG-D850 using XDA Premium 4 mobile app
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Because the bootloader on the D851 is in fact unlocked. It's the only US variant with an unlocked bootloader. And if you didn't care about that you'd still be missing WiFi calling and VoLTE when they push it out.
https://twitter.com/TeamAndIRC/status/488353823660863491
Just sayin.

arcanexvi said:
Because the bootloader on the D851 is in fact unlocked. It's the only US variant with an unlocked bootloader. And if you didn't care about that you'd still be missing WiFi calling and VoLTE when they push it out.
https://twitter.com/TeamAndIRC/status/488353823660863491
Just sayin.
Click to expand...
Click to collapse
Thanks for the update last I heard it was locked just like all of the others. Hopefully this will allow the others to gain an unlocked BL.
Sent from my LG-D850 using XDA Premium 4 mobile app

arcanexvi said:
Because the bootloader on the D851 is in fact unlocked. It's the only US variant with an unlocked bootloader. And if you didn't care about that you'd still be missing WiFi calling and VoLTE when they push it out.
https://twitter.com/TeamAndIRC/status/488353823660863491
Just sayin.
Click to expand...
Click to collapse
I have a T-Mobile SIM card for a prepaid plan. I don't get WiFi calling, as far as I am aware. I just want to be able to make and receive calls. Data isn't even that big of a deal for me since I'm around WiFi so much.
Does anyone know the process to unlock the SIM?

I don't believe the ATT version supports AWS band over 3G/H+, so if you're in an area where the TMO tower is using that, you might be forced down to E, G, or have no signal.
I believe the TMO version doesn't support LTE band 5, while the ATT version does. The only carrier I know of using LTE band 5 is U.S Cellular, so that might not be an issue.
Sent from my SGH-M919 using XDA Premium HD app

flinttownbrown said:
I don't believe the ATT version supports AWS band over 3G/H+, so if you're in an area where the TMO tower is using that, you might be forced down to E, G, or have no signal.
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Click to collapse
Yes it does support it, surprisingly. Per FCC documentation. Of course, AT&T might have disabled those bands in software.
flinttownbrown said:
I believe the TMO version doesn't support LTE band 5, while the ATT version does. The only carrier I know of using LTE band 5 is U.S Cellular, so that might not be an issue.
Sent from my SGH-M919 using XDA Premium HD app
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AT&T also uses it here and there.

flinttownbrown said:
I don't believe the ATT version supports AWS band over 3G/H+, so if you're in an area where the TMO tower is using that, you might be forced down to E, G, or have no signal.
I believe the TMO version doesn't support LTE band 5, while the ATT version does. The only carrier I know of using LTE band 5 is U.S Cellular, so that might not be an issue.
Sent from my SGH-M919 using XDA Premium HD app
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Old thread, but it's worth pointing out that T-Mobile also refarmed 1900mhz in a number of areas to support HSPA+, so the potential lack of 1700/2100 HSPA+ shouldn't make that much of a difference.
Once or twice, my wife's Lumia was connecting on HSPA+ when all I could get was EDGE, suggesting to me at least that HSPA+ over 1700/2100 does not seem to be possible on the d850, despite what the FCC filing might say. If I'm wrong, I'd love to be corrected on that.

T-mobile or Dev Edition ?

I'm on T-mobile and not sure which one to get. I'm all about rooting it and flashing rom and don't really care about WiFi calling .
Thanks.
Sent from my SM-G925T using XDA Free mobile app

Blanko6 said:
I'm on T-mobile and not sure which one to get. I'm all about rooting it and flashing rom and don't really care about WiFi calling .
Thanks.
Sent from my SM-G925T using XDA Free mobile app
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Click to collapse
WiFi calling and texting from air plan would be the only different. But, you don't care for those.

Blanko6 said:
I'm on T-mobile and not sure which one to get. I'm all about rooting it and flashing rom and don't really care about WiFi calling .
Thanks.
Sent from my SM-G925T using XDA Free mobile app
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toiday said:
WiFi calling and texting from air plan would be the only different. But, you don't care for those.
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Click to collapse
If your on T-mobile buy T-mobile .. the Dev edition is not the exact same phone, their are LTE radio differences

Blanko6 said:
I'm on T-mobile and not sure which one to get. I'm all about rooting it and flashing rom and don't really care about WiFi calling .
Thanks.
Sent from my SM-G925T using XDA Free mobile app
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Click to collapse
The cost is the same and it is easy to unlock the T-Mobile version, so I would buy that to ensure you have support for all TMO bands.

Thanks guys. I'm gonna pick up the t-mobile then. Have the s6 now, lovely phone but I'm a flash addict lol
Sent from my SM-G925T using XDA Free mobile app

clsA said:
If your on T-mobile buy T-mobile .. the Dev edition is not the exact same phone, their are LTE radio differences
Click to expand...
Click to collapse
I think there is a fix for that now.
Sent from my Nexus 6 using XDA Free mobile app

markwebb said:
I think there is a fix for that now.
Sent from my Nexus 6 using XDA Free mobile app
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Click to collapse
If their is, please share

clsA said:
If their is, please share
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Click to collapse
I'm pretty sure I saw it on here recently as I just received the Dev edition. Remember, Google search is your friend.
Sent from my Nexus 6 using XDA Free mobile app

markwebb said:
I'm pretty sure I saw it on here recently as I just received the Dev edition. Remember, Google search is your friend.
Sent from my Nexus 6 using XDA Free mobile app
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Lol, why would i google it ? I have a Developer edition on AT&T
If your on T-mobile buy a T-mobile phone like I said at the beginning

T-Mobile phone will likely contain band 12 which is a big deal for the refarmed area as it's in the 700mhz spectrum. More indoor penetration for better reception. I would get a T-Mobile variant > Sunshine > Flash Dev edition if you really don't care too much about Wifi Calling. Unless I'm mistaken and the Dev unit contains band 12. But usually the Dev edition caters more to AT&T than T-Mobile

Here is listing of developer and unlocked bands.
Sent from my Nexus 6 using XDA Free mobile app

I just went through this and sent my dev edition back for the T-Mobile variant for 1 reason... Tmobiles HSPA+ allows download speeds of 42mbps.. On the Dev edition you will get HSPA+ but it's capped at 14mbps... So while the LTE bands may be supported it doesn't support T-Mobile's network fully

I guess the ATT Dev Edition is also different and probably doesn't support the T-Mo bands fully as well? Or are they similar?

markwebb said:
I guess the ATT Dev Edition is also different and probably doesn't support the T-Mo bands fully as well? Or are they similar?
Click to expand...
Click to collapse
Their is only one Developer Edition and one Unlocked edition - they are both identical to the AT&T version hardware wise

Ok but the HTC direct Dev Edition is different from both ATT and TMO edition when it comes to bands?

markwebb said:
Ok but the HTC direct Dev Edition is different from both ATT and TMO edition when it comes to bands?
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Click to collapse
If your on either ATT or T-Mobile there is no reason really to get a Dev edition... Since it's so easy to root these things there no point imo

CWick4141 said:
If your on either ATT or T-Mobile there is no reason really to get a Dev edition... Since it's so easy to root these things there no point imo
Click to expand...
Click to collapse
Understood but there seems to be nuances and different answers in the bands and hspa.
Sent from my Nexus 6 using XDA Free mobile app

markwebb said:
Ok but the HTC direct Dev Edition is different from both ATT and TMO edition when it comes to bands?
Click to expand...
Click to collapse
No the Developer Edition is identical to the AT&T phone except it unlocked and bloatware free (as well as different firmware numbers / CID)

clsA said:
No the Developer Edition is identical to the AT&T phone except it unlocked and bloatware free (as well as different firmware numbers / CID)
Click to expand...
Click to collapse
But what about this? It appears there is a difference.
http://forum.xda-developers.com/showthread.php?p=7
Sent from my HTC One M9 using XDA Free mobile app

So, from what I gathered, based on just searching HTC and T-mo's sites, these are the bandwidths supported for each device in question:
HTC One M9 Unlocked & Developer Edition Band Support
2 (1,900 MHz)
3 (1,800 MHz)
4 (1,700 MHz AWS)
5 (850 MHz)
7 (2,600 MHz)
12 (700 MHz lower A/B/C)
13 (700 MHz upper C)
17 (700 MHz lower B/C)
29 (700 MHz D/E)
30 (2,300 MHz WCS)
T-Mobile Band (frequency):
Quad Band GSM; LTE: 2, 3, 4, 7, 12, 17
UMTS: Band I (2100), Band II (1900), Band IV (1700/2100), Band V (850)
Maybe someone a bit more savvy in this department can interpret this information into layman's terms? The HTC band frequencies seem easy enough, though I don't understand the letters at the end of specific frequencies. But interpreting the T-Mobile frequencies, at least in the UMTS section, is proving difficult in order to make an educated decision as to whether the developer edition is compatible. Personally, I don't care about WiFi calling and VoiLTE that comes with a T-Mobile branded device. I'm currently using an unlocked Att M7 on T-Mo network. But I do notice that the radio is different as far is signal, without hitting the forums for info. What I do care about is not having bloatware and having a fully unlocked device, so should I want to flash a WiFi calling tweak, if there is a stable one, I can do it with a little more ease. And no, I don't wish to use special apps to remove bloatware on a T-Mo version. I asked my husband since he did electrical engineering for the Navy to interpret but his exact words were " I do not understand civilian radio frequencies". So, a better understanding would be most appreciative. Thank you.
Edit: So far, I was able to find out from a friend that Dev Ed. wouldn't do well with 3G due to the lack of the combination of 1700/2100 frequencies. I can't see that as being too terribly important, but I figured I'd throw that in.

So does unlocking make service possible on CDMA carriers?

I've been getting mixed reports from my search through this forum on whether unlocking a Sprint Note 4 will allow me to use the phone on another US CDMA carrier, specifically boost mobile. Some people have said it flat out won't work, others have said it will work on 3G.
Boost Mobile used to support the Sprint Note 4 for a carrier switch that they would do themselves, but apparently they don't do this anymore.

AbandonShips said:
I've been getting mixed reports from my search through this forum on whether unlocking a Sprint Note 4 will allow me to use the phone on another US CDMA carrier, specifically boost mobile. Some people have said it flat out won't work, others have said it will work on 3G.
Boost Mobile used to support the Sprint Note 4 for a carrier switch that they would do themselves, but apparently they don't do this anymore.
Click to expand...
Click to collapse
I'm none cdma US carrier and it is working fine, just need to edit some settings by using DFS to make 3G working. I guess no 4G.
Sent from my SM-N910P using Tapatalk

jam97 said:
I'm none cdma US carrier and it is working fine, just need to edit some settings by using DFS to make 3G working. I guess no 4G.
Sent from my SM-N910P using Tapatalk
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What tool did you use to unlock it?

AbandonShips said:
What tool did you use to unlock it?
Click to expand...
Click to collapse
idone galaxy tools
Sent from my SM-N910P using Tapatalk