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I've purchased an unlocked Verizon S7 Edge, model SM-G935V, but haven't received it yet. I'm an AT&T customer. The phone should work on AT&T's network since it's unlocked, but I just realized it'll probably still have Verizon-ified firmware, and might not work with certain AT&T-specific features like HD voice, video calling, or voicemail. How will the Verizon firmware behave when it's on the AT&T network? Can I install the latest AT&T firmware on this phone instead, using a similar method to what people are doing for the 935U firmware? I prefer a stock AT&T firmware rather than a beta or rooting. Thanks in advance!
There's another thread in this forum "Stock Firmware for SM-935A (AT&T)". Should I just flash that to my unlocked SM-935V, and essentially turn it into a 935A? I believe the hardware of all S7 Edge models is identical, so I'm hoping that will work.
I did this and applied the 7.0 update - and now I can't seem to revert to any other software. If I were you, I'd flash the U update and forget about carrier-specific garbage.
raduque said:
I did this and applied the 7.0 update - and now I can't seem to revert to any other software. If I were you, I'd flash the U update and forget about carrier-specific garbage.
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Thanks. Did you have any problems getting LTE data to work with your 935V once it was on the AT&T network? I saw a few mentions from people saying they could only get slower data connections, until they called AT&T to "provision LTE for their SIM" or something. I get the impression it's not enough just to have an AT&T SIM card - like the AT&T network has a registry of phone IDs, and non-AT&T branded phones won't be in it, and so won't get LTE data.
From browsing the 935U thread, it sounds like that firmware is receiving updates much more slowly than the carrier-specific firmwares. The U firmware also wouldn't provide the missing AT&T-specific features I was looking for, like HD voice or WiFi calling, so I'm not convinced it would really be an improvement over just keeping the Verizon fw. But maybe I'll feel differently once I actually get my hands on the phone and play with it - all I'm doing now is reading forum threads and checking my mailbox.
Honestly couldn't tell you. I'm on Verizon with my main device (S7e on U FW). I only flashed the AT&T FW (PK1) so I could flash the unreleased Nougat files.
Now, I can't seem to flash anything but an AT&T rom.
Also FWIW, the U firmware is getting updates slower than carrier roms, but it's still the better rom - untouched by the carrier's bumbling idiot of a dev team, no pre-loaded carrier junk you can't get rid of (only disable), better battery life and better performance.
More FWIW, I don't care about HD Voice or Wifi calling - both those are irrelevant to me.
At&t release today on 2/17/17 official update to Nougat 7.0 build BQA6 with February security.
Clicking from Edge of Galaxy.
I want to do the opposite - flash G935V onto G935A, with the intention of eventually being able to flash back G935A. Not sure if I could do this, though.
Sent from my SM-G930V using Tapatalk
I've got my phone working now. The short answer is yes, as far as I've found, you can flash any carrier's firmware to your S7 Edge. There may be some limitations if the bootloader version on your phone is different from the new firmware's bootloader version, but fortunately I didn't run into that. I went from the Verizon firmware to the AT&T firmware and then to the unbranded 935U firmware.
But for best results, a branded S7 Edge should be used with the same branded firmware, and on the same network. Otherwise you may run into some problems, or certain carrier-specific features won't work. In my case, my Verizon-branded S7 Edge is unable to get Wifi calling and HD Voice (aka VoLTE) on the AT&T network with an AT&T SIM card, no matter what firmware version I use.
s.chamberlin said:
I've got my phone working now. The short answer is yes, as far as I've found, you can flash any carrier's firmware to your S7 Edge. There may be some limitations if the bootloader version on your phone is different from the new firmware's bootloader version, but fortunately I didn't run into that. I went from the Verizon firmware to the AT&T firmware and then to the unbranded 935U firmware.
But for best results, a branded S7 Edge should be used with the same branded firmware, and on the same network. Otherwise you may run into some problems, or certain carrier-specific features won't work. In my case, my Verizon-branded S7 Edge is unable to get Wifi calling and HD Voice (aka VoLTE) on the AT&T network with an AT&T SIM card, no matter what firmware version I use.
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Really? That's strange. I successfully flashed V firmware on my A and HD voice & WiFi Capping are active
Sent from my SM-G935V using Tapatalk
So you did the opposite direction of what I did? I've read that AT&T is more restrictive about these features than some other carriers, which is maybe why it didn't work for me. I can't find it now, but there was an AT&T community forums thread in which a rep straight-out said that those features won't work on a non-AT&T-branded phone or other unlocked "bring your own device" phone.
To be fair, I'm not certain HD Voice isn't working, since there doesn't seem be a definitive way to test for it. With the AT&T firmware, attempting to turn on wifi calling would give me an error saying it couldn't be activated on my device. With the unbranded 935U firmware and an AT&T SIM card installed, I don't even see an option for turning on wifi calling.
Hi all. I was playing with the different Firmware on my SM-G955U and SM-G950U and found out how to change the boot animation, The SIM CARD IS THE KEY OF CHANGING THE BOOT. I have T-Mobile, AT&T and Sprint SIM cards. I have 2 S8+ from Sprint, unlock them on ONLINEUNLOCKS.COM. After unlocking the phones, I installed the G955U1 and G950U1 firmware so that the phones will work better on T-Mobile Network. So I decided I try the (USERDATA), I flash the T-Mobile USERSATA TO MY SPRINT S8+ with T-Mobile SIM card and running on the G955U1 firmware. The phone boot animation was T-Mobile, so I flash back to Stock G955U1 using the modified Odin. Next I switch the T-Mobile SIM card and put AT&T SIM card and flash AT&T USERDATA with Stock Odin. AT&T BOOT ANIMATION came up, next I switch the SIM card to Sprint and do the same process and Sprint BOOT ANIMATION came up.
(1 To flash user data Used stock Odin
(2 put file in AP
(3 to go back to the original firmware for the phone, used the SIM card the phone came with.
(4 Used Prince Comsey Odin with G955U1 firmware
(5 used stock firmware with Stock Odin for US carrier phones, if not it wouldn't go back to the original state.
Happy flashing
Just remember T-Mobile USERDATA, T-Mobile SIM, Verizon USERDATA, Verizon SIM and so forth.
Make sure before you flash any USERDATA, BE ON STOCK G955U1 or G950U1 firmware because its the Base for Flashing USERDATA. I did it 3 times so I know it works 100%
Hey all. Today I did a LTE+ speed test on my Sprint G955U unlock using T-Mobile SIM card, installed with G955U1 Rom and AT&T G955U Baseband. I GOT 231 MBPS DOWNLOAD SPEEDS, 49 UPLOAD SPEED ON T-MOBILE LTE PLUS Network. I couldn't believe what I saw so I did a second Test and the with to 231 mbps. Sweeeet! Screenshot_20170726-092538.png
https://drive.google.com/file/d/0B71VA01vEZAjbjBUbFFXMEVjTXM/view?usp=drivesdk
kdecoteau1 said:
Hey all. Today I did a LTE+ speed test on my Sprint G955U unlock using T-Mobile SIM card, installed with G955U1 Rom and AT&T G955U Baseband. I GOT 231 MBPS DOWNLOAD SPEEDS, 49 UPLOAD SPEED ON T-MOBILE LTE PLUS Network. I couldn't believe what I saw so I did a second Test and the with to 231 mbps. Sweeeet! Screenshot_20170726-092538.png
https://drive.google.com/file/d/0B71VA01vEZAjbjBUbFFXMEVjTXM/view?usp=drivesdk
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Just did one too and I got 123mb down and 27mb up not ss impressive as yours but coming from where this same spot used to give me 1-2mb down is a huge improvement maybe something to do with the network updates tmobile has been talking about all year?
That specific area normally like 30 - 35 mbps download speed, when I saw the speed had to look twice. Couldn't believe that was T-Mobile LTE+ speeds, I tweak all my S8 and S8+ for that speed ratio. Speed speed speed
kdecoteau1 said:
Hey all. Today I did a LTE+ speed test on my Sprint G955U unlock using T-Mobile SIM card, installed with G955U1 Rom and AT&T G955U Baseband. I GOT 231 MBPS DOWNLOAD SPEEDS, 49 UPLOAD SPEED ON T-MOBILE LTE PLUS Network. I couldn't believe what I saw so I did a second Test and the with to 231 mbps. Sweeeet! Screenshot_20170726-092538.png
https://drive.google.com/file/d/0B71VA01vEZAjbjBUbFFXMEVjTXM/view?usp=drivesdk
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Click to collapse
Can I ask, why are you using the AT&T baseband instead of the TMO baseband, if you have a TMO sim?
I'm on U1 right now, about to switch from an AT&T mvno to a TMO mvno, so was going to flash the TMO baseband over U1, with the assumption that this would help with signal strength.
Sent from my SM-G955U1 using Tapatalk
Hey there. I have all for 4 service now, Verizon S8+ works better with its own baseband. My unlock Sprint S8+ running the U1 new AQG2 BL, AP and CSC. Today I had it running all 4 files, BL, AP, CP and CSC. The problem I had was the phone couldn't get Verizon VoLTE, which I already know. So when I got home from work I had to flash back U1 BL, AP, CSC an Verizon CP, full wipe and the phone was working great. T-Mobile S8+ is the only one that runs 90% except for Video calls. The Sprint S8+ with U1 firmware and Sprint service, it works too but Sprint don't have any VoLTE. I got very good download speeds on T-Mobile and Verizon. AT&T so so but way better than Sprint.
kdecoteau1 said:
Hey all. Today I did a LTE+ speed test on my Sprint G955U unlock using T-Mobile SIM card, installed with G955U1 Rom and AT&T G955U Baseband. I GOT 231 MBPS DOWNLOAD SPEEDS, 49 UPLOAD SPEED ON T-MOBILE LTE PLUS Network. I couldn't believe what I saw so I did a second Test and the with to 231 mbps. Sweeeet! Screenshot_20170726-092538.png
https://drive.google.com/file/d/0B71VA01vEZAjbjBUbFFXMEVjTXM/view?usp=drivesdk
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can you share all the files you will need to get this too happen i want to try it out
kdecoteau1 said:
Hi all. I was playing with the different Firmware on my SM-G955U and SM-G950U and found out how to change the boot animation, The SIM CARD IS THE KEY OF CHANGING THE BOOT. I have T-Mobile, AT&T and Sprint SIM cards. I have 2 S8+ from Sprint, unlock them on ONLINEUNLOCKS.COM. After unlocking the phones, I installed the G955U1 and G950U1 firmware so that the phones will work better on T-Mobile Network. So I decided I try the (USERDATA), I flash the T-Mobile USERSATA TO MY SPRINT S8+ with T-Mobile SIM card and running on the G955U1 firmware. The phone boot animation was T-Mobile, so I flash back to Stock G955U1 using the modified Odin. Next I switch the T-Mobile SIM card and put AT&T SIM card and flash AT&T USERDATA with Stock Odin. AT&T BOOT ANIMATION came up, next I switch the SIM card to Sprint and do the same process and Sprint BOOT ANIMATION came up.
(1 To flash user data Used stock Odin
(2 put file in AP
(3 to go back to the original firmware for the phone, used the SIM card the phone came with.
(4 Used Prince Comsey Odin with G955U1 firmware
(5 used stock firmware with Stock Odin for US carrier phones, if not it wouldn't go back to the original state.
Happy flashing
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Click to collapse
Hmm, this didn't work for me...I put my T-mobile sim in, and flashed the Userdata file in AP. Is that correct?
Hmmm didn’t work for you, when you flashing back to stock T-MOBILE, you must first flash U1 latest AQH3 BL,AP,CP,CSC with latest modified Odin v3.12.5 Prince comsey. Next step for stock T-MOBILE AQHD BL, AP,CP,CSC,UMS. Must add USER-DATA in UMS for tmobile or any of the 4 main Carriers, Used Stock Odin V3.12.7. Once you do it right, shouldn't be any problems. Happy flashing ?
kdecoteau1 said:
Hmmm didn’t work for you, when you flashing back to stock T-MOBILE, you must first flash U1 latest AQH3 BL,AP,CP,CSC with latest modified Odin v3.12.5 Prince comsey. Next step for stock T-MOBILE AQHD BL, AP,CP,CSC,UMS. Must add USER-DATA in UMS for tmobile or any of the 4 main Carriers, Used Stock Odin V3.12.7. Once you do it right, shouldn't be any problems. Happy flashing ?
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TMB-G955USQU1AQHD this right?
I'm sure I not the only one switching carriers, I have unlocked S7 AT&T SMG930A , android version 6.0.1 on T-mobile network, everything work fine, what are my option to get version 7..
Thanks
Flash with Odin, or attempt to flash tmo fw in Odin.
Hey Everybody,
So I've come to realize that my unlocked US S10+ on AT&T didn't have VOLTE or Wifi calling as options in the communication/call settings menus. this is pretty disappointing as it seems that using the unlocked phone with Verizon you get these features, and they make a decent impact on my use of the phone.
My understanding is if I flash the ATT firmware to the phone I would get the functions, so being an amateur I followed some simple guides to SamFirm AND ODIN, and downloaded the ATT CSC firmware for my model number. However after going through the Odin process and resetting my phone it is still showing the same Software information as prior to my installation, and I do not have the features.
I saw a thread on the board stating that the ATT firmware isn't available yet, so I'm not sure if what I downloaded was actually any different than what is on my phone,and my phones "Service Provider Software Version" did already have ATT in the description, which is a bit confusing to me.
Am I correct in understanding the only way to get the features would be through a firmware flash? And would anyone know if I had flashed the right firmware, and what the original firmware CSC would be for my model if I needed to revert?
My information is:
Model Number:
SM-G975U1 (S10+ ceramic white 512GB - Unlocked US)
Service Provider SW ver.:
SOAMC_SM-G975U1_OYM_ATT_PP_0018
R38M205LY2B
ATT/ATT/XAA
Firmware file obtained from SamFirm:
SM-G975U1_1_20190225093814_9wyh9qbuyg_fac
AP file name for reference:
AP_G975U1UEU1ASBA_CL15445662_QB22243196_REV00_user_low_ship_MULTI_CERT_meta_OS9.tar
If it's anything like the S9 was, you can't just ODIN the firmware/CSC. You'll just get the bloat with none of the features you want.
Goronok said:
If it's anything like the S9 was, you can't just ODIN the firmware/CSC. You'll just get the bloat with none of the features you want.
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I've heard this as well. If you want those features on a Samsung phone, it has to be at&t branded. I ordered an at&t phone from Samsung since I make good use of wifi calling. It works fine on my unlocked P3XL but no dice on the Samsungs.
I have the same phone and service and when I went to update my imei they told me it could not find the phone. So I was without lte/4g for a day until I gave them a imei to a s8 active. Now I have data at least
Darthshadow666 said:
Hey Everybody,
So I've come to realize that my unlocked US S10+ on AT&T didn't have VOLTE or Wifi calling as options in the communication/call settings menus. this is pretty disappointing as it seems that using the unlocked phone with Verizon you get these features, and they make a decent impact on my use of the phone.
My understanding is if I flash the ATT firmware to the phone I would get the functions, so being an amateur I followed some simple guides to SamFirm AND ODIN, and downloaded the ATT CSC firmware for my model number. However after going through the Odin process and resetting my phone it is still showing the same Software information as prior to my installation, and I do not have the features.
I saw a thread on the board stating that the ATT firmware isn't available yet, so I'm not sure if what I downloaded was actually any different than what is on my phone,and my phones "Service Provider Software Version" did already have ATT in the description, which is a bit confusing to me.
Am I correct in understanding the only way to get the features would be through a firmware flash? And would anyone know if I had flashed the right firmware, and what the original firmware CSC would be for my model if I needed to revert?
My information is:
Model Number:
SM-G975U1 (S10+ ceramic white 512GB - Unlocked US)
Service Provider SW ver.:
SOAMC_SM-G975U1_OYM_ATT_PP_0018
R38M205LY2B
ATT/ATT/XAA
Firmware file obtained from SamFirm:
SM-G975U1_1_20190225093814_9wyh9qbuyg_fac
AP file name for reference:
AP_G975U1UEU1ASBA_CL15445662_QB22243196_REV00_user_low_ship_MULTI_CERT_meta_OS9.tar
Click to expand...
Click to collapse
Service Provider SW ver.:
SOAMC_SM-G975U1_OYM_ATT_PP_0018
R38M205LY2B
ATT/ATT/XAA
So I have the same service provider software, on my unlocked s10+, however when I went into an ATT store and looked at a branded S10+
I noticed the service provider software version to be : SOAMC_SM-G975U1_OYM_ATT_PP_0033( thirty three at end),
so anyway to update the service provider version? does that come from the SIM ??
I have an unlocked S10 plus and I flashed the AT&T Firmware. I now have VoLTE and WiFi calling unlocked on my phone using AT&T. You need to make sure you flash the U version of the firmware, not the U1 one. Unlocked S10 is using the U1 firmware already so flashing that one again changes nothing.
beethoven1854 said:
I have an unlocked S10 plus and I flashed the AT&T Firmware. I now have VoLTE and WiFi calling unlocked on my phone using AT&T. You need to make sure you flash the U version of the firmware, not the U1 one. Unlocked S10 is using the U1 firmware already so flashing that one again changes nothing.
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Where did you get the att firmware?
Sent from my SM-G975U using Tapatalk
I kinda doubt it but did any of you with unlocked phones that flashed the AT&T firmware get any better service? I've been considering it to get VOLTE but just wondered
jamgam said:
I kinda doubt it but did any of you with unlocked phones that flashed the AT&T firmware get any better service? I've been considering it to get VOLTE but just wondered
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Click to collapse
I followed this thread https://forum.xda-developers.com/galaxy-s10/how-to/att-ota-ota-updates-t3909697
At first like you I downloaded the wrong version and nothing changed. I finally flashed G975USQU1ASBA and now have VOLTE/WIFI Calling and of course all of the bloat. But at least those two functions are working. Make sure that you complete a clean flash when I did a dirty flash I had problems sticking on the loading screen.
I believe you just need to call in ATT to take care those carrier specific features .
Which firmware can I flash with Odin to my S10+ Xfinity Mobile unlocked to get AT&T OTA updates? Currently have ASF7 flashed from the latest unknown firmware uploaded to Sammobile. I flashed w/o USERDATA. I just want to be able to get future OTA updates as I just switched my carrier from Metro by T-Mobile to AT&T. I was using U1 US unlocked firmwares on my Note9 & S10+ but want to use carrier perks now with AT&T.
What's with AT&T being the only ones to not release update files? You would think they all would be required to release them. More AT&T customers need kick up a fuss about it.
Today the wife and I jumped ship from Verizon and brought our own S7 Edges(935V) devices to Tmobile. My phone is running the 935U Android 8.0 firmware already from Verizon and works great on TMobile service. Her phone on the other hand is G935V on official Verizon firmware still. Her phone works great on TMobile just as mine but her phone is still on Android 7.0 Verizon official. As far as taking updates now or reflashing with Odin,would it be safe to flash her phone with U firm from TMobile? Are all the U firms the same? Would flashing the TMo firmware help any at all with the tmobile radios and such? Any help greatly appreciated! Enjoying the TMobile service so far! Way better service here in Lansing,Michigan with Tmo than the Verizon.
I've used both the G935U and the G935T firmware on my S7 edge from Verizon no problem on the TMo network. People have said the U Firmware radio doesn't have quite the signal detection range as the others, but you might just be sacrificing a bar of service for more consistent connectivity.
Eventually I ended up using the G935T firmware instead because the TMobile bloatware helped my wife manage her account and such. If her phone was still on Verizon Official and needed flashed for a non developer, I would go with the Tmobile firmware just for less confusion.
The Verizon S7's really were never carrier locked in the first place, and the S7 has universal modem firmware.