Hello,
I have some noob questions to ask before trying this out on my G920T (Baseband version: G920TUVS6FRC1 - which is running Android 7.0). Here's a little bit of background about my situation, I was with Tmobile Prepaid up until the end of December 2019. I ended up getting my phone unlocked by Tmobile and transferred my number to an AT&T Prepaid account.
I was looking to try and get HD Voice/wifi calling working on my unlocked G920T. My question is, when flashing different carrier firmwares, does it matter what the storage capacity of the phone is? Would I be able to flash G920A firmware (no matter if it came from a 32GB Samsung S6, or 128GB (not sure if AT&T ever had a 128GB version of this phone)?
Also I read that it is better to use the princecomsy (my apologies if I messed up on the name) version of Odin rather than the non-cracked versions. Is that correct?
Would I be able to flash different carrier firmwares regardless if my bootloader is locked?
Thank you to anyone that can help.
Related
I've just purchased a new S6 with the same model number as the T-Mobile version but it's unlocked and unbranded. Does anyone else have this phone and when do you think it may get marshmallow?
www.bestbuy.com/site/samsung-galaxy-s6-4g-with-32gb-memory-cell-phone-unlocked-black/4667100.p?id=1219794340074&skuId=4667100
You will get the update anyday now. It would be awsome if you could get a system dump for that firmware youre running. we could reallydo some development witg that and be able to get marshmallow along with you.
I have the same phone, also purchased unlocked though Best Buy. Will we be getting a separate software update from T-Mobile? Once released, how can I get that system dump? I can see how it would be usefull for development. Haven't rooted because I don't want to trip knox and loose warranty. Impatiently waiting on the update. Didn't know if I had to wait for the T-Mobile update to roll out first.
To my knowledge our phone is just a different CSC under the G920T variant... For G920F, which is the international version, mostly European, different CSCs mean different regions and/or carriers. Likewise, for G920T, there are two CSCs: TMO (which is T-Mobile) and XAR (which is our bloatware-free version). That said, if the TMO firmware comes out first, we'll be able to flash it manually with Odin but we'll not receive OTA. The downside is that we'll have to bear with the bloatware until we flash back to the XAR Marshmallow after it's released. As for Knox, as long as we're flashing official stock firmwares from Samsung Knox won't be tripped.
Hello XDA!
I'd like to buy a Note 5 to use on AT&T but I'd like to have all carrier logos and bloatware removed without rooting. I found that the N920C has no carrier branding or any applications, however it has some LTE issues on AT&T.
I know this post is under the Note 5 but here's what I experienced with an S7.
I wanted to acheive the same goal on my S7 by flashing the unlocked firmware, and it worked. I installed G930U firmware on a G930A by flashing CP & BL from the A firmware and AP & CSC from U, given that they both are on the same version. (I downloaded the G930U firmware off Sammobile which said G930U AT&T, so I'm assuming it contains the AT&T modem and bootloader, since it mentions AP and CSC to be G930U). I've been using it since, and I get LTE just fine, even LTE+, though I lost a few carrier features like VoLTE and WiFi calling.
I read that the reason why this worked is because the hardware is identical across all S7s, and that the software is what enables certain radio bands. Is this true? I've always had the notion that different carriers have different hardware. I also read that the bootloader is locked. Would that be a concern while flashing official firmware? It's worked for me so I'm a bit confused.
Anyways, my main question is: will this work on a Note 5? Is it possible to buy an N920A and flash N920C AP & CSC with CP & BL from the ATT firmware? Will the modem inside the N920A designed for the AT&T frequencies be enabled while under the N920C + ATT modem & bootloader hybrid?
On the subject of hardware, if all Note 5s are the same internally, could I do this to any other carrier phone like a N920P instead of an N920A?
Apologies for the wall of text. I wanted to provide as much information as I can.
Update
I ended up buying an N920i as other users here have reported compatibility with AT&T.
Hi all,
I bought the Galaxy S6 from AT&T when it came out, but switched over to T-Mobile from AT&T last year. Because of this, I have been unable to get any updates and have been stuck on Android 6.0 when the current release is android 7.0, so I've been thinking of flashing my phone. I was curious as to whether I'm able to flash my G920A with Tmobile's G920T rom? Would it work? And if so, after I flash it, would I be able to receive updates normally from T-mobile's servers, as I'm currently using a T-mobile sim, or would I have to flash every subsequent update?
Thanks
Doubtful, since AT&T has a locked bootloader. If the bootloader was unlocked you might be able to try.
hiilikepie said:
Hi all,
I bought the Galaxy S6 from AT&T when it came out, but switched over to T-Mobile from AT&T last year. Because of this, I have been unable to get any updates and have been stuck on Android 6.0 when the current release is android 7.0, so I've been thinking of flashing my phone. I was curious as to whether I'm able to flash my G920A with Tmobile's G920T rom? Would it work? And if so, after I flash it, would I be able to receive updates normally from T-mobile's servers, as I'm currently using a T-mobile sim, or would I have to flash every subsequent update?
Thanks
Click to expand...
Click to collapse
You cannot flash a G920T firmware on a G920A. First off, Odin won't let you because the G920T firmware is only signed to be flashed on the G920T.
And even if you somehow rooted and used FlashFire to force the firmware onto your device, the firmware would brick the device, and without a USB jig or SD card port, the brick would be permanent.
hiilikepie said:
Hi all,
I bought the Galaxy S6 from AT&T when it came out, but switched over to T-Mobile from AT&T last year. Because of this, I have been unable to get any updates and have been stuck on Android 6.0 when the current release is android 7.0, so I've been thinking of flashing my phone. I was curious as to whether I'm able to flash my G920A with Tmobile's G920T rom? Would it work? And if so, after I flash it, would I be able to receive updates normally from T-mobile's servers, as I'm currently using a T-mobile sim, or would I have to flash every subsequent update?
Thanks
Click to expand...
Click to collapse
I too am seeking answers on this as I have an SM-920A I brought over to t-mobile. Unlocked the phone, installed the t-mobile SIM and the phone works fine, except, it still has all the old ATT apps I no longer need or desire to be there AND without the T-Mobile apps installed, I cannot use their LTE Signal Booster. Is there any way I can install these t-mobile apps that would have come with the SM-920T load?
BWMcAMA said:
I too am seeking answers on this as I have an SM-920A I brought over to t-mobile. Unlocked the phone, installed the t-mobile SIM and the phone works fine, except, it still has all the old ATT apps I no longer need or desire to be there AND without the T-Mobile apps installed, I cannot use their LTE Signal Booster. Is there any way I can install these t-mobile apps that would have come with the SM-920T load?
Click to expand...
Click to collapse
https://www.google.com/amp/s/forum....t-samsung-g920a-s6-g925a-s7edge-t3564637/amp/
Just do this and remove the AT&T apps you don't want completely.
Sent from my SM-G955U using Tapatalk
So, what can be done -- if anything--to solve this issue?
-wrong
It's an unlocked Galaxy S10 AT&T G973U..
I am using it internationally and not with an AT&T sim, so I don't try to upgrade it OTA anymore..
I tried Smart Switch, it says it's up to date. But last security patch was April 2019 and it's running Android 9.
Build and Baseband: G973USQU1ASD7 (According to SamMobile) there's no Android 10 for this baseband.
But my question is, can I flash let's say USA (Android 10) G973USQU3CTB1 or would I need to wait for the baseband for my model?
If I missed something, feel free to correct me.
Thanks!
Having a "U" model means Universal. You can flash any U.S. carrier stock firmware to it. If you have AT&T firmware and want to use T-mobile firmware instead, you can do it by flashing it with Odin.
You can get most firmwares off Sam mobile (Verizon, Sprint, T-mobile). AT&T firmware is hard to come by and you will usually have to pay to get it from a pay site like www.gsm2file.com
Just download an Android 10 firmware and flash it. No matter what it is as long as it's for the U model line.
StoneyJSG said:
Having a "U" model means Universal. You can flash any U.S. carrier stock firmware to it. If you have AT&T firmware and want to use T-mobile firmware instead, you can do it by flashing it with Odin.
You can get most firmwares off Sam mobile (Verizon, Sprint, T-mobile). AT&T firmware is hard to come by and you will usually have to pay to get it from a pay site
Just download an Android 10 firmware and flash it. No matter what it is as long as it's for the U model line.
Click to expand...
Click to collapse
Ok, thank you very much.
And is "USA" only unbranded? I don't want any bloatware since I am international and I don't benefit from anything they offer.
The G973U phone will only accept U.S. firmware (Verizon, Sprint, At&t, T-mobile, Spectrum, Xfinity, and unlocked U1 Samsung firmware). So if you flash the U1 unbranded firmware you will get rid of carrier bloatware.
StoneyJSG said:
The G973U phone will only accept U.S. firmware (Verizon, Sprint, At&t, T-mobile, Spectrum, Xfinity, and unlocked U1 Samsung firmware). So if you flash the U1 unbranded firmware you will get rid of carrier bloatware.
Click to expand...
Click to collapse
Say I wanna get rid of the bloatware, what firmware do I select from the U1 variants? Because I see all of them have carrier names.
If you get it from sam mobile it's XAA from Unknown. The latest is the CTB5 bootloader. I think there's also a thread in the forums here that contains Odin firmware.
jannamain1 said:
It's an unlocked Galaxy S10 AT&T G973U..
I am using it internationally and not with an AT&T sim, so I don't try to upgrade it OTA anymore..
I tried Smart Switch, it says it's up to date. But last security patch was April 2019 and it's running Android 9.
Build and Baseband: G973USQU1ASD7 (According to SamMobile) there's no Android 10 for this baseband.
But my question is, can I flash let's say USA (Android 10) G973USQU3CTB1 or would I need to wait for the baseband for my model?
If I missed something, feel free to correct me.
Thanks!
Click to expand...
Click to collapse
Here is the latest SM-G973U Android 10 firmware. It was just released yesterday morning. https://samfrew.com/download/Galaxy__S10__/f6o3/VZW/G973USQS3CTB5/G973UOYN3CTB5/
I'm currently living in Japan, but will be moving back to the US in a couple months, so I recently bought a refurbished Galaxy S20 FE 5g that claimed to be unlocked from the US and had it shipped to Japan.
It works fine with my Japanese sim, but came with AT&T bloatware installed and the model number is still SM-G781U. To my understanding, an unlocked phone should have a '1' after this, signifying that it's unlocked. Because of this, I don't get OTA updated and am still stick on Android 10 and One UI 2.5. So I figured I'd learn how to flash it and do that. It says the CSC is G781UOYN1ATIG, but then when I go to Service Provider it says ATT/ATT/ATT.
Could I just flash the firmware for the SM-G781U1, CSC: XAA onto it and be able to have a fully unlocked and updated phone? Sorry I'm a bit new to this and don't want to brick my phone. Thanks!
I did the opposite (from SM-G781U1 to SM-G781U) and worked with no problems. I needed ATT Wi-Fi calling that worked only with the ATT firmware when I was on Android 10. I suggest to do a factory reset when switching between branded and unbranded but (in theory) you should keep your phone data if you flash the HOME_CSC file.