Unlocking More Bands? - Verizon Samsung Galaxy S7 Edge Questions & Answers

Hey!
From what I've read online it looks like all S7 Edges are built identically which means that the bands must be controlled by software. Are there any firmwares, patches, or tricks that enable other bands? I have a Verizon S7 Edge on T-Mobile so I'm mainly looking to unlock band 12. I saw this post: http://forum.xda-developers.com/ver...e-flashing-sm-935u-firmware-verizon-t3415145/ but im not sure if that will unlock the bands or not. VoLTE and WiFi-Calling would be a plus.
Thanks.

So you mean like flashing the u firmware or something

ShadowyStorm said:
So you mean like flashing the u firmware or something
Click to expand...
Click to collapse
I believe that is what this post describes: http://forum.xda-developers.com/ver...e-flashing-sm-935u-firmware-verizon-t3415145/ but I dont know if that will actually unlock the bands or not. Have you tried it? Will it actually unlock the bands?
Thanks.

I haven't tried this but my s6 edge works for my gf on metro and it's a Verizon phone with of1 firmware. I don't see why the u firmware wouldn't work for you.

Flashed the U Firmware. It didnt unlock the bands. Any other suggestions?

nahtnam said:
Flashed the U Firmware. It didnt unlock the bands. Any other suggestions?
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Click to collapse
Maybe now that you're on the U firmware you could flash the T-Mobile firmware? Not sure if it would work or not, maybe you'd be willing to try. Make a backup just in case...

I do belive the band's are controlled by the baseband/radio file in the updates, of course most of my experience is with the ENG bootloader on HTC devices so I think for Samsung it's either modem or pda....more experienced members can correct me if I'm wrong, so feel free to jump in

FragmentedLogik said:
I do belive the band's are controlled by the baseband/radio file in the updates, of course most of my experience is with the ENG bootloader on HTC devices so I think for Samsung it's either modem or pda....more experienced members can correct me if I'm wrong, so feel free to jump in
Click to expand...
Click to collapse
Do you think flashing the T-Mobile firmware would help? I posted in the other thread asking if it would work but if flashing firmeware replaces everything (bootloader, os, kernel, etc) then it should work right?

Related

Switch Firmware,

Hello, xda_developers.
I just got mail S7 Unlocked in the mail that I ordered from eBay, I believe it was a sweet deal CAD $549.99 + tax. I am with Telus BTW. Let's get to the point.
The phone is with Sprint which has bloatware and APN is locked out. I want to flash a new firmware onto the phone without Tripping the Knox. I looked into the 930U Firmware but don't know which one to pick. I looked into the thread: "Bloat free firmware 930U....anyone tried it?" and saw the part about root, so I backed out.
After I looked into the Sprint SM-G930P firmware and saw few different "Regions": SPR, XAS, and VMU. I found"SPR" is Sprint, and "VMU" is Virgin Mobile USA. For "XAS" I am not too sure, but "XAS image has the APN section unlocked". ("Here" )
Afterwards, I found the forum "Found a code...interesting...." and used the code "##BRAND#" and removed the Sprint boot logo, and some bloatware but the APN was still locked out, and still had "Hands-Free Activation".
I need help picking the right Firmware for my phone, which will let me add APN, and remove the "Hands-Free Activation". I do not want or need to root the phone.
The phone is up to the latest update:
Software Version: SG930PVPS2APG1 ,
Hardware version: REV0.6 ,
Baseband version: G930PVPS2APG1 ,
Build number: MMB29M.G930PVPS2APG1 .
I did not want to flash firmware without knowing for sure it will not brick the phone, brand new phone in a long time, I don't want to break it or brick it on the first day.
Aswell, I am not sure if I can flash a Canadian firmware, SM-G930W8 or the Global Firmware, SM-G930F.
Thank you for reading, hope you can help me out.
anjesh12 said:
Hello, xda_developers.
I just got mail S7 Unlocked in the mail that I ordered from eBay, I believe it was a sweet deal CAD $549.99 + tax. I am with Telus BTW. Let's get to the point.
The phone is with Sprint which has bloatware and APN is locked out. I want to flash a new firmware onto the phone without Tripping the Knox. I looked into the 930U Firmware but don't know which one to pick. I looked into the thread: "Bloat free firmware 930U....anyone tried it?" and saw the part about root, so I backed out.
After I looked into the Sprint SM-G930P firmware and saw few different "Regions": SPR, XAS, and VMU. I found"SPR" is Sprint, and "VMU" is Virgin Mobile USA. For "XAS" I am not too sure, but "XAS image has the APN section unlocked". ("Here" )
Afterwards, I found the forum "Found a code...interesting...." and used the code "##BRAND#" and removed the Sprint boot logo, and some bloatware but the APN was still locked out, and still had "Hands-Free Activation".
I need help picking the right Firmware for my phone, which will let me add APN, and remove the "Hands-Free Activation". I do not want or need to root the phone.
The phone is up to the latest update:
Software Version: SG930PVPS2APG1 ,
Hardware version: REV0.6 ,
Baseband version: G930PVPS2APG1 ,
Build number: MMB29M.G930PVPS2APG1 .
I did not want to flash firmware without knowing for sure it will not brick the phone, brand new phone in a long time, I don't want to break it or brick it on the first day.
Aswell, I am not sure if I can flash a Canadian firmware, SM-G930W8 or the Global Firmware, SM-G930F.
Thank you for reading, hope you can help me out.
Click to expand...
Click to collapse
The 930U firmware will work perfectly fine without root. No bloatware and you can modify the APN's.
Euronymous88 said:
The 930U firmware will work perfectly fine without root. No bloatware and you can modify the APN's.
Click to expand...
Click to collapse
the 930U firmware is bloatware free, and I don't have to root the phone? Also does it have the "Hands-Free Activation" or the "Activate this device" in Settings?
It's bloatware free and it doesn't require root. And when I flashed...it simply activated my device and there's no activate device in settings.
Euronymous88 said:
It's bloatware free and it doesn't require root. And when I flashed...it simply activated my device and there's no activate device in settings.
Click to expand...
Click to collapse
alright, thank you very much.
Going to go flash it now
edit: Quick Update, went to flash the G930U files(firmware?) and it all went smoothly. Takes time to register onto network. any fix without root?
edit 2: Just did a factory reset from recovery, seems to have fixed the slow network register
edit 3: The phone seems to run warmer than the sprint firmware, no idea why
Never mind, I am, an idiot.
skater95 said:
You have a Sprint S7 and was able to flash a firmware without any bloat on it?! Can you give me the link of which yoi downloaded? And did yoi use odin to flash it?
Click to expand...
Click to collapse
Read the thread again @skater95 the link and instructions are in it
Congrats on the phone! That is a good deal considering the phone goes for 899 brand new, and I'd assume around 600-750. But with black listing these days I wouldn't trust Kijiji etc.
Your phone should work fine except for LTE. Its missing I believe 2-3 bands for LTE but on the plus side it's the bands that bell/Telus don't really use much like 2600. So if you ever see soneone else have LTE and not you that would be why but, then again the bands you don't have usually are for rural areas
Enjoy the phone
Sent from my Nexus 5 using Tapatalk
PoppNLPatrick said:
Read the thread again @skater95 the link and instructions are in it
Click to expand...
Click to collapse
frostyisgod said:
Congrats on the phone! That is a good deal considering the phone goes for 899 brand new, and I'd assume around 600-750. But with black listing these days I wouldn't trust Kijiji etc.
Your phone should work fine except for LTE. Its missing I believe 2-3 bands for LTE but on the plus side it's the bands that bell/Telus don't really use much like 2600. So if you ever see soneone else have LTE and not you that would be why but, then again the bands you don't have usually are for rural areas
Enjoy the phone
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Thank you very much. It's a pretty nice deal, still going on I believe. I don't have to worry about the blacklist. Even without the 2600 band data works great, really don't mind not having a few LTE bands, for the price i got the phone for. With the 930U firmware, it works great.
frostyisgod said:
Congrats on the phone! That is a good deal considering the phone goes for 899 brand new, and I'd assume around 600-750. But with black listing these days I wouldn't trust Kijiji etc.
Your phone should work fine except for LTE. Its missing I believe 2-3 bands for LTE but on the plus side it's the bands that bell/Telus don't really use much like 2600. So if you ever see soneone else have LTE and not you that would be why but, then again the bands you don't have usually are for rural areas
Enjoy the phone
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
The U firmware has more/better LTE bands enabled than the Sprint (P) firmware. I strongly doubt it's missing any LTE bands used in Canada.
myphone12345 said:
The U firmware has more/better LTE bands enabled than the Sprint (P) firmware. I strongly doubt it's missing any LTE bands used in Canada.
Click to expand...
Click to collapse
I believe your correct with the U firmware It shouldn't be missing a band or 2 like it is on the Sprint firmware. But yes about the same price as you'd get it on Kijiji (since there's tax) but it's new and don't have to worry about the blacklist
myphone12345 said:
The U firmware has more/better LTE bands enabled than the Sprint (P) firmware. I strongly doubt it's missing any LTE bands used in Canada.
Click to expand...
Click to collapse
FWIW - here are the bands that are apparently supported in the 930U firmware. This is band priority list from the LTE section of the ##DATA# menu. Not sure which bands Canada uses, but it looks like the only major one missing might be band 17?
Cooljb said:
FWIW - here are the bands that are apparently supported in the 930U firmware. This is band priority list from the LTE section of the ##DATA# menu. Not sure which bands Canada uses, but it looks like the only major one missing might be band 17?
Click to expand...
Click to collapse
I think the Canadian networks may have started using MFBI on band 12 (like AT&T has). If so then B17 would no longer be necessary in Canada. The best place to verify this might be to post a question about it on the Bell and Rogers forums on Howardforums.
In G930UUEU2APEH thread it is said:
"root with the only g930a method there is right now"
So, this universal firmware can be rooted, right?
Can any one give me the link for downloading the 930U rom for my sprint sm-g930p and are they facing any problem with the same
jainmayur83 said:
Can any one give me the link for downloading the 930U rom for my sprint sm-g930p and are they facing any problem with the same
Click to expand...
Click to collapse
There are two download links in the OP of this thread. The google drive one appears to be working. That's where I downloaded it from.
http://forum.xda-developers.com/att-galaxy-s7/how-to/xda-community-love-g930u-t3415875
Cooljb said:
There are two download links in the OP of this thread. The google drive one appears to be working. That's where I downloaded it from.
http://forum.xda-developers.com/att-galaxy-s7/how-to/xda-community-love-g930u-t3415875
Click to expand...
Click to collapse
hi,
i downloaded the rom and tried flashing the phone, but in odin it came as "Fail" and now phone is gone. it is going in recovery and the phone is not starting
jainmayur83 said:
hi,
i downloaded the rom and tried flashing the phone, but in odin it came as "Fail" and now phone is gone. it is going in recovery and the phone is not starting
Click to expand...
Click to collapse
Did the actual flash fail, or did one or more of the MD5 checks fail? What version of Odin did you use? If any of the MD5 checks failed, you just need to download the firmware again - your download was corrupted. If the actual flash failed, the most common cause is the USB cable/connection. Try another USB cable, and/or another USB port on your computer, and don't move the phone or computer around while it's flashing. Odin is very temperamental if the connection is not perfect.
Cooljb said:
Did the actual flash fail, or did one or more of the MD5 checks fail? What version of Odin did you use? If any of the MD5 checks failed, you just need to download the firmware again - your download was corrupted. If the actual flash failed, the most common cause is the USB cable/connection. Try another USB cable, and/or another USB port on your computer, and don't move the phone or computer around while it's flashing. Odin is very temperamental if the connection is not perfect.
Click to expand...
Click to collapse
Hi i tried again and the rom was successfully flashed. Now the problem is that, it is not accepting my T-mobile sim card and there are still some options missing from the settings menu, such as "mobile networks, wifi calling, hotspot and tethering.. Plz help.. I am so confused
jainmayur83 said:
Hi i tried again and the rom was successfully flashed. Now the problem is that, it is not accepting my T-mobile sim card and there are still some options missing from the settings menu, such as "mobile networks, wifi calling, hotspot and tethering.. Plz help.. I am so confused
Click to expand...
Click to collapse
I'm confused too. Are you wanting to use it on Sprint or T-Mobile? Do you have a sprint account, and did your phone activate on Sprint? I don't have any experience using a non-Sprint sim with this phone/firmware. The only thing I can suggest it maybe do a factory reset and go through the setup/activation with the T-Mobile sim already in the phone. Good luck.
If you're wanting to use both Sprint and T-Mobile on this phone, I'm not sure if that's possible. From what I've read elsewhere, even though this firmware is unlocked, it can only be active on one carrier at a time. I don't think you can switch back and forth at will, without activating/deactivating from one carrier to the other. I could be wrong though, as I have not used anything but my original Sprint sim.

Flashing other variants?

Hey guys, I recently broke my s7e and got a check from Samsung to replace it. I'm looking for try cheapest way to do it and saw a deal on slickdeals with a comment that said:
The Sprint galaxy S7 edge can be flashed to be the 935U version, not sure about the non edge version. All S7 and S7e sold in the US have the same hardware though, so the Sprint version does already have the hardware for the 4x4 MIMO, flashing it to the U version if possible should be enough to put it on parity with the T-Mobile version on most things software wise (including Wi-fi calling I believe) and 100% on par hardware wise.
Yes just root, install custom recovery, download a tmobile rom that has built in aroma installer and you then own a unofficial ALL bands and services for tmobile s7
Is this at all true?
cd85233 said:
Hey guys, I recently broke my s7e and got a check from Samsung to replace it. I'm looking for try cheapest way to do it and saw a deal on slickdeals with a comment that said:
The Sprint galaxy S7 edge can be flashed to be the 935U version, not sure about the non edge version. All S7 and S7e sold in the US have the same hardware though, so the Sprint version does already have the hardware for the 4x4 MIMO, flashing it to the U version if possible should be enough to put it on parity with the T-Mobile version on most things software wise (including Wi-fi calling I believe) and 100% on par hardware wise.
Yes just root, install custom recovery, download a tmobile rom that has built in aroma installer and you then own a unofficial ALL bands and services for tmobile s7
Is this at all true?
Click to expand...
Click to collapse
Well you could probably ODIN to different firmwares, but we have a locked bootloader and therefor no custom recovery. Could also try different ROMs on the exynos versions of the phone. But since they're different hardware versions I doubt you would get 100% functional software like wifi calling and VoLTE.
CosMiiK said:
Well you could probably ODIN to different firmwares, but we have a locked bootloader and therefor no custom recovery. Could also try different ROMs on the exynos versions of the phone. But since they're different hardware versions I doubt you would get 100% functional software like wifi calling and VoLTE.
Click to expand...
Click to collapse
I thought that was the case. It was just really cheap and would be a great way to get another one if all I had to do was Odin the tmo firmware.
cd85233 said:
I thought that was the case. It was just really cheap and would be a great way to get another one if all I had to do was Odin the tmo firmware.
Click to expand...
Click to collapse
Yeah that would be a great idea. I know the phones are identical hardware wise. If I were you I'd do some more research to see if you could flash the sprint phone to tmobile through odin. I think it SHOULD work but having never tried I can't confirm.
I just flashed my Verizon 7 edge to the t mobile firmware and was able to use band 12, WiFi Calling and carrier aggregation. Should be the same for sprint.
Only thing I was told in the Verizon thread was that the firmware for t mobile is baseband 3 and the U firmware is baseband 2 so there is no going back until Verizon or U firmware is undated to baseband 3
chevydudesixty9 said:
I just flashed my Verizon 7 edge to the t mobile firmware and was able to use band 12, WiFi Calling and carrier aggregation. Should be the same for sprint.
Only thing I was told in the Verizon thread was that the firmware for t mobile is baseband 3 and the U firmware is baseband 2 so there is no going back until Verizon or U firmware is undated to baseband 3
Click to expand...
Click to collapse
Someone told me that Verizon was now in v3 with the latest update, is that not actually the case?
Akira Takamedo said:
Someone told me that Verizon was now in v3 with the latest update, is that not actually the case?
Click to expand...
Click to collapse
Not sure honestly.
chevydudesixty9 said:
I just flashed my Verizon 7 edge to the t mobile firmware and was able to use band 12, WiFi Calling and carrier aggregation. Should be the same for sprint.
Only thing I was told in the Verizon thread was that the firmware for t mobile is baseband 3 and the U firmware is baseband 2 so there is no going back until Verizon or U firmware is undated to baseband 3
Click to expand...
Click to collapse
I believe you mean the bootloader v2/v3... not baseband. Baseband is referring to modem.
Binary100100 said:
I believe you mean the bootloader v2/v3... not baseband. Baseband is referring to modem.
Click to expand...
Click to collapse
Yes. My fault. Bootloader

SM-935V

I would like to know if it's possible to flash the firmware for
T-mobile I'm looking to leave verizon I know that the Verizon variant does not have 2 of the lte bands that T-mobile uses can I use Odin to Flash the 935t firmware to get the band's or am I asking something that is not possible. Thanks in advance
Rich7591110 said:
I would like to know if it's possible to flash the firmware for
T-mobile I'm looking to leave verizon I know that the Verizon variant does not have 2 of the lte bands that T-mobile uses can I use Odin to Flash the 935t firmware to get the band's or am I asking something that is not possible. Thanks in advance
Click to expand...
Click to collapse
The answer is NO you're asking firmware to replace/add hardware and that's not possible
I have a Verizon branded s7 edge and used Odin to load the 935U PI3 firmware. I am on T-Mo now and do have LTE band 12 working (validated with LTE Discovery). The research that I did found that the US variants have all the radios in them, but some carrier variants of firmware disable certain bands. By doing the 935U firmware, I also got rid of the notice on every reboot that I was using a non-Verizon SIM. So I now have all T-mo bands and no stupid SIM message.
Rich7591110 said:
I would like to know if it's possible to flash the firmware for
T-mobile I'm looking to leave verizon I know that the Verizon variant does not have 2 of the lte bands that T-mobile uses can I use Odin to Flash the 935t firmware to get the band's or am I asking something that is not possible. Thanks in advance
Click to expand...
Click to collapse
I can vouch for same experience as SF-IT guy. I bought a G935V and flashed with G935U firmware via odin. Works on T-mobile, even wifi calling works. Currently on the latest PI3 version of G935U firmware. I would that you search the forum to see if you can flash the G935T firmware directly. The only downside of using G935U firmware is that the FM radio chip is not enabled in the firmware. I read that the all the carrier versions (September security patch and newer) of the G935 firmware have the FM radio chip enabled. I prefer the 935U version because it there is not carrier bloatware. Samsung bloatware is still there.
davekung said:
I can vouch for same experience as SF-IT guy. I bought a G935V and flashed with G935U firmware via odin. Works on T-mobile, even wifi calling works. Currently on the latest PI3 version of G935U firmware. I would that you search the forum to see if you can flash the G935T firmware directly. The only downside of using G935U firmware is that the FM radio chip is not enabled in the firmware. I read that the all the carrier versions (September security patch and newer) of the G935 firmware have the FM radio chip enabled. I prefer the 935U version because it there is not carrier bloatware. Samsung bloatware is still there.
Click to expand...
Click to collapse
So what would the FM radio chip do? Just enable FM radios is all? Because if that's the downside then it's not a major setback as not too many people use the FM radio.
I don't think you can
cyoo97 said:
I don't think you can
Click to expand...
Click to collapse
You definitely can. All US versions of the S7 & S7 Edge are the same hardware and can be flashed to any other US firmware. (including the U firmware that automatically works on all 4 carriers)
andrewNY said:
You definitely can. All US versions of the S7 & S7 Edge are the same hardware and can be flashed to any other US firmware. (including the U firmware that automatically works on all 4 carriers)
Click to expand...
Click to collapse
So what you're saying is that flashing the U version firmware will unlock by default all 930"X" and 935"X" phones? As in it just unlocks the mofo and debloats some while you're at it?
What's the catch? It seems too easy
Tin_Man_0 said:
So what you're saying is that flashing the U version firmware will unlock by default all 930"X" and 935"X" phones? As in it just unlocks the mofo and debloats some while you're at it?
What's the catch?
Click to expand...
Click to collapse
Bloat is definitely gone on the U firmware, which is great. My phone runs faster and has more free space too.
I think some carrier features aren't supported on the U firmware. On T-mobile everything works (VoLTE and Wi-Fi Calling), but I think AT&T might have some issues with those.
If the phone is SIM locked to a particular carrier, I'm not sure that automatically gets turned off or not when you switch to the U firmware. You might need to contact your carrier first to get an unlock code?
andrewNY said:
Bloat is definitely gone on the U firmware, which is great. My phone runs faster and has more free space too.
I think some carrier features aren't supported on the U firmware. On T-mobile everything works (VoLTE and Wi-Fi Calling), but I think AT&T might have some issues with those.
If the phone is SIM locked to a particular carrier, I'm not sure that automatically gets turned off or not when you switch to the U firmware. You might need to contact your carrier first to get an unlock code?
Click to expand...
Click to collapse
What if I got a temporary unlock from t-mobile unlock app and then flashed this firmware? Would it make it permanent? Seems quite possible, but I don't know if the temporary unlock actually unlocks the phone or just inserts a bypass that would disappear if flashed.
andrewNY said:
Bloat is definitely gone on the U firmware, which is great. My phone runs faster and has more free space too.
I think some carrier features aren't supported on the U firmware. On T-mobile everything works (VoLTE and Wi-Fi Calling), but I think AT&T might have some issues with those.
If the phone is SIM locked to a particular carrier, I'm not sure that automatically gets turned off or not when you switch to the U firmware. You might need to contact your carrier first to get an unlock code?
Click to expand...
Click to collapse
I unlocked my US TMo phone when stock, rooted, and am running Echoe - which has a glitch where WiFi calling sort of works (can receive calls but not make them). In the TMo forum, there are threads on U - your comments here are more specific to what I am interested.
Which U firmware are you on and are you rooted (is is updated to latest v4 bootloader version), and did you have to ODIN and full wipe with CSC or did you get by with CSC Home to preserve data?
Also, are you on U CP or did you flash TMo CP to get all the bands?.
.
duplicate - XDA burped
Thanks everyone

Want to Flash AT&T or Unlocked Firmware on T-Mobile Device - A Few Questions

So I've spent a few hours searching XDA to find the right resources on how to flash a different U.S. carrier's GS7 Edge firmware on the T-Mobile branded device. I found out that since all the internal hardware for all U.S. devices are identical, I'd be able to flash any one carrier's firmware on to any carrier's device, provided there are no inconsistencies with the bootloader versions of the firmwares.
The phone is intended for an extended family member and I am able to purchase a T-Mobile GS7 Edge for significantly cheaper than from any other carrier. Because it will be used on AT&T's network, I wanted to make sure I got everything right before I get started. I either want to flash the AT&T version which will allow it to be fully compatible on the network, or the Unlocked version. Apparently, the unlocked version is completely debloated since it's not associated with any carrier and provides better benchmarks, especially battery life, so I'm interested in that.
I've compiled the resources I need in the following:
https://forum.xda-developers.com/att-s7-edge/how-to/firmware-att-s7-edge-g935a-official-t3412312
https://forum.xda-developers.com/att-s7-edge/help/att-t-mobile-bootloader-version-t3473281
https://forum.xda-developers.com/tmobile-s7-edge/help/installed-sm-g935u-sm-g935t-firmware-t3482945
https://forum.xda-developers.com/att-s7-edge/how-to/samsung-sm-935u-firmware-install-guide-t3411451
https://forum.xda-developers.com/att-s7-edge/how-to/firmware-pi2-s7-edge-sm-g935a-10-03-16-t3477246
https://forum.xda-developers.com/verizon-s7-edge/how-to/odin-stock-nougat-firmware-t3570156
https://forum.xda-developers.com/att-s7-edge/how-to/updated-935u-935a-live-links-pi3-t3501686
http://updato.com/firmware-archive-select-model?q=SM-G935U&order=date&dir=desc&exact=1
etc.
One question I have is whether I am able to flash the Unlocked firmware at all. I don't currently have the device in hand so I can't check the baseband version, but my understanding is that the Unlocked version is currently on a lower bootloader version whereas it is v4 for AT&T or T.Mobile. This would mean I would be able unable to flash the Unlocked firmware if the device already has a higher version of the bootloader, right? Conversely, I would be able to do so if the T-Mobile bootloader was on the same version as the Unlocked version (e.g., if the device hasn't had an update to its bootloader).. The same issue would arise if I wanted to go back to a carrier firmware. Where can I find a list of T-Mobile firmwares and their bootloader versions so that I can check? Threads I've searched are saying I can't go to 935U from 935A/T because of mismatching bootloaders but others are saying I can go back to 935A/T on Nougat (same bootloader versions?) so clarification would be greatly appreciated.
Edit: Just discovered the bootloader version can be determined by looking at the 9th character in the baseband version. Pretty simple!
Another question I have is whether flashing the AT&T firmware will give me VoLTE, Wifi Calling, tethering, etc. on AT&T's network. I've established that if I flashed the Unlocked firmware, I'll lose these functions (unless I root the phone, but that's a no-go since I need Samsung Pay intact). Just wanted to make sure that I would retain these features if I flashed the AT&T firmware on the T-Mobile device. Also, would I receive all OTAs pushed from AT&T while I'm on their firmware, even though it was a T-Mobile device? Or would I have to manually update it somehow?
Many thanks in advance.
Yes you can flash the unlocked firmware, I do recommend flashing the at&t CP (radio) though for better signal.
For tmobile all we lose is video calling, we retain everything else. I can't answer your other questions since I have not used this phone from tmobile on at&t. I have used the at&t model on tmobile with U and had no issues.
Sent from my SM-G935U using XDA Premium HD app
justda said:
Yes you can flash the unlocked firmware, I do recommend flashing the at&t CP (radio) though for better signal.
For tmobile all we lose is video calling, we retain everything else. I can't answer your other questions since I have not used this phone from tmobile on at&t. I have used the at&t model on tmobile with U and had no issues.
Sent from my SM-G935U using XDA Premium HD app
Click to expand...
Click to collapse
^^^^^this man is correct. Also, is the device you want to flash Carrier unlocked? Even though youre flashing a different carriers firmware or even the U firmware I believe the IMEI still needs to be unlocked from the original carrier. Obviously just pop the at&t sim card in the t mobile phone to see if its unlocked. hope this helps.
black96ss said:
^^^^^this man is correct. Also, is the device you want to flash Carrier unlocked? Even though youre flashing a different carriers firmware or even the U firmware I believe the IMEI still needs to be unlocked from the original carrier. Obviously just pop the at&t sim card in the t mobile phone to see if its unlocked. hope this helps.
Click to expand...
Click to collapse
Yes, it'll be unlocked, so there won't be problems there. If I flash the AT&T firmware and not the Unlocked firmware, I will retain video calling, yes?
justda said:
Yes you can flash the unlocked firmware, I do recommend flashing the at&t CP (radio) though for better signal.
For tmobile all we lose is video calling, we retain everything else. I can't answer your other questions since I have not used this phone from tmobile on at&t. I have used the at&t model on tmobile with U and had no issues.
Sent from my SM-G935U using XDA Premium HD app
Click to expand...
Click to collapse
If I flash the current version of the Unlocked firmware, can I go back to AT&T's or T-Mobile's firmware?
Synchronicities said:
Yes, it'll be unlocked, so there won't be problems there. If I flash the AT&T firmware and not the Unlocked firmware, I will retain video calling, yes?
Click to expand...
Click to collapse
flashing the at&t firmware will just be like having an original at&t s7 edge so yes. The Unlocked firmware will be lighter with no video calling(no carrier apps, no carrier boot animation, some of the quick toggles will be different) you will retain VOLTE HD calling, wifi calling(if at&t has that) and with the at&t you will have all the bloat (about 2-3 GB of used storage plus more a tad bit more use on ram usage) which will use more battery. remember like stated above, if you do decide to flash the U firmware, make sure you flash the latest At&t CP being you will have better coverage since youll be on the at&t network.
Synchronicities said:
If I flash the current version of the Unlocked firmware, can I go back to AT&T's or T-Mobile's firmware?
Click to expand...
Click to collapse
I was able to flash back to T mobile from the U, I never tried anything with a At&t variant or the at&t firmware
I am also interested. If I flash
1) Will the device status remain "Unmodified" - I use Good for Enterprise for work email and it won't function on rooted or modified devices
2) Will Android Pay Work?
3) Will I get Software updates directly?
cnewsgrp said:
I am also interested. If I flash
1) Will the device status remain "Unmodified" - I use Good for Enterprise for work email and it won't function on rooted or modified devices
2) Will Android Pay Work?
3) Will I get Software updates directly?
Click to expand...
Click to collapse
Can someone review and comment?
---------- Post added at 12:24 PM ---------- Previous post was at 12:19 PM ----------
black96ss said:
flashing the at&t firmware will just be like having an original at&t s7 edge so yes. The Unlocked firmware will be lighter with no video calling(no carrier apps, no carrier boot animation, some of the quick toggles will be different) you will retain VOLTE HD calling, wifi calling(if at&t has that) and with the at&t you will have all the bloat (about 2-3 GB of used storage plus more a tad bit more use on ram usage) which will use more battery. remember like stated above, if you do decide to flash the U firmware, make sure you flash the latest At&t CP being you will have better coverage since youll be on the at&t network.
I was able to flash back to T mobile from the U, I never tried anything with a At&t variant or the at&t firmware
Click to expand...
Click to collapse
Does Android Pay work on "U" firmware?
Should I get CP from here => https://forum.xda-developers.com/att-s7-edge/how-to/firmware-att-s7-edge-g935a-official-t3412312
I this a good thread for instructions to install U firmware on T => https://forum.xda-developers.com/att-s7-edge/how-to/samsung-sm-935u-firmware-install-guide-t3411451
cnewsgrp said:
Can someone review and comment?
---------- Post added at 12:24 PM ---------- Previous post was at 12:19 PM ----------
Does Android Pay work on "U" firmware?
Should I get CP from here => https://forum.xda-developers.com/att-s7-edge/how-to/firmware-att-s7-edge-g935a-official-t3412312
I this a good thread for instructions to install U firmware on T => https://forum.xda-developers.com/att-s7-edge/how-to/samsung-sm-935u-firmware-install-guide-t3411451
Click to expand...
Click to collapse
Yes and yes
Sent from my SM-G955U1 using XDA-Developers Legacy app
cnewsgrp said:
I am also interested. If I flash
1) Will the device status remain "Unmodified" - I use Good for Enterprise for work email and it won't function on rooted or modified devices
2) Will Android Pay Work?
3) Will I get Software updates directly?
Click to expand...
Click to collapse
I Flashed an AT&T S7 Edge with T-Mobile firmware and:
1) Status remains unmodified
2) Android pay works (as well as Samsung pay)
3) I've already got 2 T-Mobile pushed firmware updates that installed without any issues.
Don't know if this helps, but I'd think it would be the same going from T-Mobile to AT&T.
I did also have to use a modified version of "ODIN" and flash a "PIT" file because T-Mobile has a different partition than AT&T.
pierre3408 said:
I Flashed an AT&T S7 Edge with T-Mobile firmware and:
1) Status remains unmodified
2) Android pay works (as well as Samsung pay)
3) I've already got 2 T-Mobile pushed firmware updates that installed without any issues.
Don't know if this helps, but I'd think it would be the same going from T-Mobile to AT&T.
I did also have to use a modified version of "ODIN" and flash a "PIT" file because T-Mobile has a different partition than AT&T.
Click to expand...
Click to collapse
Thanks! I am almost ready. Final checks
- I downloaded 935U firmware from here https://forum.xda-developers.com/tmobile-s7-edge/how-to/4-28-t-mobile-935-firmware-t3597866 (File is G935UUEU4BQD2_G935UOYM4BQD2_TMB.zip)
- I am planning to use ODIN 3.12.7
- Since I am on ATT Network I will use ATT Radio (CP File). I downloaded ATT firmware from here => https://forum.xda-developers.com/att-s7-edge/how-to/odin-files-to-s4bqc2-g935a-t3582874
I will use this CP => CP_G935AUCS4BQC2_CL10280464_QB12904088_REV02_user_low_ship_MULTI_CERT.tar
Am I doing everything right?
Should I just flash all U files (including Radio) and flash ATT Radio later?
Please advise
Hi team
I have the tmo ime version of the s7 edge, but flash the ATT firmware BQC2 and now I can not go back to tmobile firmware or the U firmware I got the following error in Odin:
Error device info
Who can help me,?I going to gift my s7 edge to my brother and he is on Tmobile network
Galaxy S7 active
I have a at&t Galaxy S7 active unlocked and i transfer my service to T-Mobile but I am not able to get updates can I flash T-Mobile firmware so I can have the T-Mobile interface and updates. What do I need to do to get the updates.
All US variants can flash the firmware interchangeably. Just download the corresponding firmware and flash everything(Except for the modem if you'd want to keep the original modem). You dont need anything special. If the default odin dont work, then try the comey "cracked" version.
Eric1084 said:
All US variants can flash the firmware interchangeably. Just download the corresponding firmware and flash everything(Except for the modem if you'd want to keep the original modem). You dont need anything special. If the default odin dont work, then try the comey "cracked" version.
Click to expand...
Click to collapse
Why is it that we use the CP for AT&T; however, use the Unlocked CP for TMobile? Are the radios the same for the unlocked and T-Mobile variants? Where would I get this information if I needed it in the future?
I have a GS7 edge locked to T-Mobile with the Device Unlock app. Will flashing G9350U firmware unlock my device and bypass the Device Unlock app or will I still need to use this app to unlock?
Radios are different. I flashed ATT Radio after I flashed U firmware. Though honestly I cannot tell the difference
cnewsgrp said:
Radios are different. I flashed ATT Radio after I flashed U firmware. Though honestly I cannot tell the difference
Click to expand...
Click to collapse
you did the sae thing that I am currently doing. going from tmobile (I believe) to AT&T firmware. I am going from verison (which shouldn't matter) but when I did it the first time odin 3.12.7 gave me a message of success after only one "sector" of the whole thing went green. but the phone rebooted to an error message. did I do something wrong? help??
Shadow_Sheik said:
you did the sae thing that I am currently doing. going from tmobile (I believe) to AT&T firmware. I am going from verison (which shouldn't matter) but when I did it the first time odin 3.12.7 gave me a message of success after only one "sector" of the whole thing went green. but the phone rebooted to an error message. did I do something wrong? help??
Click to expand...
Click to collapse
Sorry not an expert, but I read several times here to use Price COmsy ODIN and I use that one. Please try
OTA Update is not working after changing to U firmware.
I had stock T Mobile last firwmare installed, but I was sick of poor battery and lag
so installed this firmware https://forum.xda-developers.com/tmobile-s7-edge/how-to/6-8-t-mobile-935u-firmware-qe2-t3619151, full wipe.
Now I have worst battery performance. 12% draining overnight (6 hours) without touching the phone at all. It shows a new update but it fails when I OTA update. looks like the update it's being installed but fails at the end. Don't know what's wrong but totally hate battery.
Edit: Android pay is also not working..
pierre3408 said:
I Flashed an AT&T S7 Edge with T-Mobile firmware and:
1) Status remains unmodified
2) Android pay works (as well as Samsung pay)
3) I've already got 2 T-Mobile pushed firmware updates that installed without any issues.
Don't know if this helps, but I'd think it would be the same going from T-Mobile to AT&T.
I did also have to use a modified version of "ODIN" and flash a "PIT" file because T-Mobile has a different partition than AT&T.
Click to expand...
Click to collapse
What pit file did you flash? Did you flash the the pit file Odin pulls from your phone? Did you flash an att specific pit file?

unlocked us s8 to tmobile.

I've been searching and can't find a definitive way of flashing TMobile firmware to the unlocked s8.
davwman said:
I've been searching and can't find a definitive way of flashing TMobile firmware to the unlocked s8.
Click to expand...
Click to collapse
I assume you have US Unlocked S8....
Normally you don't need to flash it with T-Mobile firmware because most of features are supported such as: VoLTE, Band 12 and WiFi Calling. If you do decide to flash here is the tread: https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817
Yes US unlocked. The TMobile radios are better and utilize the new tech that TMobile uses. I'm assuming I can use just the radios, but there aren't any definite answers.
I am trying to get figure out the same answer.
I also have the G950U1 and would like to flash the T-Mobile firmware to obtain the 256qam and 4x4 radio.
I'm still searching for an answer.
There is also T-Mobile firmware that doesn't have bloatware, but I don't know if it is missing any feature that you guys are looking for. I do have an unlocked S8, but haven't flashed it yet.
I've attempted using both Odin, and the modified PriceComsy Odin to flash the T-Mobile G950u firmware onto the Unlocked G950U1, and it results in FAIL! (DeviceInfo).
Ended up just flashing the modem. Just need to see how this thing works now
In case anyone wanted to know how the T-Mobile modems work on the unlocked variant, I'd say quite well with all TMobile features working
davwman said:
In case anyone wanted to know how the T-Mobile modems work on the unlocked variant, I'd say quite well with all TMobile features working
Click to expand...
Click to collapse
But what kind of speeds did you have before that?
I am going to go off the limb and suggest that flashing the 950u T-Mobile Firmware doesn't give us the 4x4 MiMo Radio and 256QAM. I've not seen a difference in call quality, data speed, or signal strength. Can anyone let the community know what the three TMB/TMB/XAA mean?
This should be a big decision differentiator when selecting between the S8 unlocked and S8 T-Mobile branded device on the T-Mobile network.
zone23 said:
But what kind of speeds did you have before that?
Click to expand...
Click to collapse
The fastest speed that is in the screen shot, half of that. Also I've noticed I don't get random lte to H drops anymore where I normally would in weak TMobile areas.

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