Flashing S20 [SM-G981U] - Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News

Hi, I'm new to this flashing scene.. Also new to this forum. Not sure if this is the right thread to post it. I have a Samsung Galaxy S20 from T-Mobile and got it unlocked a few days ago.. This phone was originally from the U.S and got it from my brother and gave it to me. Anyway, how do I flash the firmware of this device? I want to flash it with a stock firmware to receive updates and I'm really not sure what to do. I don't want to take a risk to brick my phone without a proper guide. Here is the phone information below.
Service Provider SW ver:
TMB/TMB/XAA
Baseband Version:
G981USQU1ATF9

Juju89 said:
Hi, I'm new to this flashing scene.. Also new to this forum. Not sure if this is the right thread to post it. I have a Samsung Galaxy S20 from T-Mobile and got it unlocked a few days ago.. This phone was originally from the U.S and got it from my brother and gave it to me. Anyway, how do I flash the firmware of this device? I want to flash it with a stock firmware to receive updates and I'm really not sure what to do. I don't want to take a risk to brick my phone without a proper guide. Here is the phone information below.
Service Provider SW ver:
TMB/TMB/XAA
Baseband Version:
G981USQU1ATF9
Click to expand...
Click to collapse
Here are the instructions how to root and flash the firmware on your S20
https://forum.xda-developers.com/galaxy-s20/how-to/howto-root-s20-series-upgrade-firmware-t4079353

Frank65 said:
Here are the instructions how to root and flash the firmware on your S20
https://forum.xda-developers.com/galaxy-s20/how-to/howto-root-s20-series-upgrade-firmware-t4079353
Click to expand...
Click to collapse
he cant root

Juju89 said:
Hi, I'm new to this flashing scene.. Also new to this forum. Not sure if this is the right thread to post it. I have a Samsung Galaxy S20 from T-Mobile and got it unlocked a few days ago.. This phone was originally from the U.S and got it from my brother and gave it to me. Anyway, how do I flash the firmware of this device? I want to flash it with a stock firmware to receive updates and I'm really not sure what to do. I don't want to take a risk to brick my phone without a proper guide. Here is the phone information below.
Service Provider SW ver:
TMB/TMB/XAA
Baseband Version:
G981USQU1ATF9
Click to expand...
Click to collapse
flash stock firmware using odin

Related

[Q] Towelroot no longer works... ideas?

I'm pretty new to the Android phones. I bought a Samsung Galaxy Note 8 tablet about a year ago, and I absolutely love it -- which was the only reason why I considered an Android phone when it came time to upgrade. That might have been a mistake.
The phone I chose was a Galaxy S5 from AT&T.
For many reasons I won't go into (and that many of you probably know) Kitkat is awful. Removing SD card access removed one of the most important reasons that I bought the phone. So, I decided to root the thing.
I read a bunch of info on how to root, and, eventually downloaded and tried to use towelroot only to discover that AT&T/Google have blocked all functionality of that program. My build is, unfortunately, the latest build -- July 22 2014 (or there abouts).
Now, I'm not sure if the phone was given to me with that update -- I only got the thing on Sunday. Maybe it was, maybe not. Dunno. So I have a couple of questions.
If I were to factory reset the phone, would that roll back these "Security" OTA updates that were pushed onto the phone? I'm pretty sure there was at least one after I got the thing. I've spent a fair amount of time setting the phone up, but I'll do it again if a factory reset would allow me to root the phone and return the SD card functions.
Is there a way to push an earlier version of the ROM onto the phone. I'm guessing not, since I think I read that AT&T helpfully locked the bootloader.
Finally, does anyone know of any way to root this device if neither of the two paths I presented above will work?
Thanks for any help. If I can't restore the SD card functionality, I'll probably just return the phone. That would be a bummer because I was really excited about it.
CKR83 said:
I'm pretty new to the Android phones. I bought a Samsung Galaxy Note 8 tablet about a year ago, and I absolutely love it -- which was the only reason why I considered an Android phone when it came time to upgrade. That might have been a mistake.
The phone I chose was a Galaxy S5 from AT&T.
For many reasons I won't go into (and that many of you probably know) Kitkat is awful. Removing SD card access removed one of the most important reasons that I bought the phone. So, I decided to root the thing.
I read a bunch of info on how to root, and, eventually downloaded and tried to use towelroot only to discover that AT&T/Google have blocked all functionality of that program. My build is, unfortunately, the latest build -- July 22 2014 (or there abouts).
Now, I'm not sure if the phone was given to me with that update -- I only got the thing on Sunday. Maybe it was, maybe not. Dunno. So I have a couple of questions.
If I were to factory reset the phone, would that roll back these "Security" OTA updates that were pushed onto the phone? I'm pretty sure there was at least one after I got the thing. I've spent a fair amount of time setting the phone up, but I'll do it again if a factory reset would allow me to root the phone and return the SD card functions.
Is there a way to push an earlier version of the ROM onto the phone. I'm guessing not, since I think I read that AT&T helpfully locked the bootloader.
Finally, does anyone know of any way to root this device if neither of the two paths I presented above will work?
Thanks for any help. If I can't restore the SD card functionality, I'll probably just return the phone. That would be a bummer because I was really excited about it.
Click to expand...
Click to collapse
For rooting, go there http://forum.xda-developers.com/showthread.php?t=2696537
or there http://forum.xda-developers.com/showthread.php?t=1980683
Follow tuto or ask here.
You have to give more info (S5 model, firmware...)
Good luck
Franky
Rooting Help?
fgth90 said:
For rooting, go there http://forum.xda-developers.com/showthread.php?t=2696537
or there http://forum.xda-developers.com/showthread.php?t=1980683
Follow tuto or ask here.
You have to give more info (S5 model, firmware...)
Good luck
Franky
Click to expand...
Click to collapse
I see that there are tutes here, and am wading through the 50+ pages of forum posts to find what I need. However, my worry is that none of this stuff will work because of the new firmware. Here is all the info that I have on my phone:
Galaxy S5 AT&T US version (SAMSUNG-SM-900A)
Android 4.4.2
kernel version 3.4.0-2178781 [email protected] #1 Tuesday July 22
Build # KOT49H.G900AUCU2ANG3
SE for Android Status
Enforcing SEPF_SAMSUNG-SM-G900A_4.4.2_0018 Tuesday July 22
Security Software version:
MDF v1.0 Release 3
VPN v1.4 Release 1
Thanks all the pertinent info, I think.
Because the update was so new, I don't think there's a way to root this anymore. People keep telling me to use ODIN and to download an earlier ROM (and I now have ODIN and an earlier ROM -- hopefully from a good source, but I have no idea if it is), but my impression is that this latest AT&T "security" update keeps you from reflashing the ROM because of the bootloader lockout.
Any further help would be appreciated.
Thanks
CKR83 said:
...
Any further help would be appreciated.
Thanks
Click to expand...
Click to collapse
Hello,
As I told you, the only method working for me (because of towelroot non working) is cf auto root.
Check periodicaly here http://autoroot.chainfire.eu/ to see if your model is listed.
I had just a look and it's not listed yet.
If it is, flash by odin and look if root works.
If not, you've got to flash by odin the same rom again (keep your original file on pc), you'll loose nothing, and report this fails on chainfire to test other solution.
Good luck
Franky
CKR83 said:
Here is all the info that I have on my phone:
Galaxy S5 AT&T US version (SAMSUNG-SM-900A)
Android 4.4.2
kernel version 3.4.0-2178781 [email protected] #1 Tuesday July 22
Build # KOT49H.G900AUCU2ANG3
SE for Android Status
Enforcing SEPF_SAMSUNG-SM-G900A_4.4.2_0018 Tuesday July 22
Security Software version:
MDF v1.0 Release 3
VPN v1.4 Release 1
Click to expand...
Click to collapse
Not only build number and kernel version, you need to check your Bootloader version with Phone INFO ★Samsung★ app (in the FIRMWARE INFO section).
Bootloader version is one of the important info to check when you are going to root or flashing custom rom.
vndnguyen said:
Not only build number and kernel version, you need to check your Bootloader version with (in the FIRMWARE INFO section).
Bootloader version is one of the important info to check when you are going to root or flashing custom rom.
Click to expand...
Click to collapse
Hey that looks like a great utility. Thanks! The bootloader is G900AUCU2ANG3
Does that help any? People keep telling me I need to use ODIN and flash this, that or the other thing. Those comments would probably be more helpful if I knew more about this stuff, but my reading has lead me to believe that ODIN won't work with certain version of the bootloader. Or is that wrong?
CKR83 said:
Hey that looks like a great utility. Thanks! The bootloader is G900AUCU2ANG3
Did you every get your post July 2014 AT&T GS5 rooted?
If so, please drop me an email.
Thanks
TPG
Click to expand...
Click to collapse
No unfortunately not....
Sent from my SAMSUNG-SM-G870A using XDA Free mobile app

Update to 5.0

Hey guys!
i recently got Galaxy S5 ( screenshot Attached) i got it used, and at the time of buying i didn't know it was rooted. It has Android 4.2.2 when i try to update via System update. It says Operating system on your device has been modified in unauthorisd way....... so i cant seem to update my phone. Is there any way to get the new update Lolipop i try to search by i cant seem to find something related to my baseband G900fzhu1ancd .
so if anybody can guide me in the right direction will highly appreciated. I'm very new to This flashing and Rom stuff, but what i figured is we need to find same Rom that can support our baseband version?? we cannot flash any Rom? Right???
Go to sammobile . com and enter your S5 Model (G900F) into the firmware section, select your region from the drop down, and download that ROM
Instructions for flashing that to your S5 are under the download on that site
grown ups said:
Hey guys!
i recently got Galaxy S5 ( screenshot Attached) i got it used, and at the time of buying i didn't know it was rooted. It has Android 4.2.2 when i try to update via System update. It says Operating system on your device has been modified in unauthorisd way....... so i cant seem to update my phone. Is there any way to get the new update Lolipop i try to search by i cant seem to find something related to my baseband G900fzhu1ancd .
so if anybody can guide me in the right direction will highly appreciated. I'm very new to This flashing and Rom stuff, but what i figured is we need to find same Rom that can support our baseband version?? we cannot flash any Rom? Right???
Click to expand...
Click to collapse
i ddi that, their many form SM-G900F but i cant find any for My baseband do i have to download any specific that matches my baseband or i can just download any version from the list flash it.
I'm from Pakistan and its not on the list, and i dont know phone is from Pakistan either. how can i check i already uploaded screenShots of devise info.
some other information if that helps, just put me in a rigth direction.
Anybody !!!!!
just one thing if anyone have time. if i want to upgrade from 4.4.2 to 5.0 and i have galaxy s5 SM-g900F. do i just have to go sam mobile and search for firmware for my model and can pick any 5.0 version or i have to see for any other thing like baseband version or kernal etc...
my region is not on the list.. please i really want the update.
What is your S5 Model? You can used even the firmware of other country as long as you have the same model no problem with that. Based on my experienced I am from Philippines and I am using UK which is my original baseband is XTC.
grown ups said:
i ddi that, their many form SM-G900F but i cant find any for My baseband do i have to download any specific that matches my baseband or i can just download any version from the list flash it.
I'm from Pakistan and its not on the list, and i dont know phone is from Pakistan either. how can i check i already uploaded screenShots of devise info.
Click to expand...
Click to collapse
ginofakes said:
What is your S5 Model? You can used even the firmware of other country as long as you have the same model no problem with that. Based on my experienced I am from Philippines and I am using UK which is my original baseband is XTC.
Click to expand...
Click to collapse
i shared all the screenshot above of my phone. please that. i Have Galaxy s5 Sm-g900f.
so i can use any firm of any country??
grown ups said:
i shared all the screenshot above of my phone. please that. i Have Galaxy s5 Sm-g900f.
so i can use any firm of any country??
Click to expand...
Click to collapse
sorry my bad. As far as I know and based on my experience yes as long as same model. I do not know and not so sure about your device but on my device it is possible. Originally a XTC and currently using UK
maybe anybody can comment further thanks for your replies..
Just pick the closest region to you for the G900F if that is your model, if you can't find your own
BTU = United Kingdom
yes my model number is G900F.

Can't update my galaxy s8 through ota

Could someone please help me.My s8 is stuck on may security update and it shows no new updates are available to download. My model number is Sm G950FD and it is not rooted
And could you please suggest a method which does not involve odin
we international boys are a bit behind on updates im afraid
But so slow .My phone is stuck on may patch whereas july patch is rolling out
Vikyathroxs said:
Could someone please help me.My s8 is stuck on may security update and it shows no new updates are available to download. My model number is Sm G950FD and it is not rooted
And could you please suggest a method which does not involve odin
Click to expand...
Click to collapse
Which firmware version you are at? Which country? My phone was at firmware AQEB, I flashed AQF7 and later got update for AQG5. I'm from India, imported phone from UAE. Even my phone was stuck at May security update.
Same here I also have the AQEB firmware and i also imported from UAE and i too am from india . Do you know any other method rather than flashing.
batmobile_bang said:
Which firmware version you are at? Which country? My phone was at firmware AQEB, I flashed AQF7 and later got update for AQG5. I'm from India, imported phone from UAE. Even my phone was stuck at May security update.
Click to expand...
Click to collapse
Same here. I have the same software version and i too imported from UAE and i too am from India. Could you please suggest a method which does not involve flashing
Vikyathroxs said:
Same here. I have the same software version and i too imported from UAE and i too am from India. Could you please suggest a method which does not involve flashing
Click to expand...
Click to collapse
Flashing using ODIN is the only method that I know of. It's very easy and I didn't even lose my data. Doesn't void warranty too. There are YouTube guides which can help you too.
batmobile_bang said:
Which firmware version you are at? Which country? My phone was at firmware AQEB, I flashed AQF7 and later got update for AQG5. I'm from India, imported phone from UAE. Even my phone was stuck at May security update.
Click to expand...
Click to collapse
batmobile_bang said:
Flashing using ODIN is the only method that I know of. It's very easy and I didn't even lose my data. Doesn't void warranty too. There are YouTube guides which can help you too.
Click to expand...
Click to collapse
Could you please give me the links for the siftware and Odin because I can't find the correct software and please could you give me the dual SIM software
Vikyathroxs said:
Could you please give me the links for the siftware and Odin because I can't find the correct software and please could you give me the dual SIM software
Click to expand...
Click to collapse
Check this thread https://forum.xda-developers.com/ga...g-galaxy-s8-s8-indian-thread-t3578711/page237
There are posts related to your question.
batmobile_bang said:
Check this thread https://forum.xda-developers.com/ga...g-galaxy-s8-s8-indian-thread-t3578711/page237
There are posts related to your question.
Click to expand...
Click to collapse
Did you use UAE firmware for flashing or Indian
Vikyathroxs said:
Did you use UAE firmware for flashing or Indian
Click to expand...
Click to collapse
It's a multi CSC package. Common firmware for both India and UAE.
Guys, I have the exact same problem as described. I too am stuck on firmware ending with AQEB. My CSC code is INS and CSC Version is G950FOXM1AQEB. Real confusion is to determine which firmware to patch. Can I patch Indian firmware or continue with UAE based firmware? Will it void warranty? How to ensure that I don't have to factory reset the device?
abhijitmori said:
Guys, I have the exact same problem as described. I too am stuck on firmware ending with AQEB. My CSC code is INS and CSC Version is G950FOXM1AQEB. Real confusion is to determine which firmware to patch. Can I patch Indian firmware or continue with UAE based firmware? Will it void warranty? How to ensure that I don't have to factory reset the device?
Click to expand...
Click to collapse
Please read the first page of this thread!

[F8331] Change stock firmware for a better LTE signal

Hi everybody,
I'm new here, I have bought my first sony (used) but I notice that the LTE signal is so poor specially indoor. The seller hasn't saw me that the firmware is an UK fw also I live in italy, infact, after a little research, I noticed that there is a carrier's app called EE and the fw version installed is of EE carrier's. The phone is sim unlock. There isn't root and I haven't unlook the bootloader.
My questions are:
- Can I change the stock uk firmware putting in an Italian stock firmware?
- Can I change it without root and without unlook the bootloader?
- How?
- Is there a guide that I can follow?
- Can I change the CSC for preserve the ota upgrade? How? I'd like to change fw preserving OTA update.
I don't wanna unlock the bootloader and root the phone cause I don't want lose the DRM licenses (widevine specially). I'm not interested to rooting or make any modding.
I'd like to put a stock room without bloat apps and with a strong lte signal.
Here the Info about the phone:
F8331
Android 8.0
Phone Software Version: 1302-9157_41.3.A.2.171
Global-LTE3A
Generic-41.3.a.2.171
S1 Boot version: 1299-4832 S1_BOOT_MSM8996_LA2.0_O_204
BASEBAND: 8996-8996.gwn.prodQ-00070-40
Customization version: 1305-7307R8E
Codes phone for CSC doesn't work.
Thanks y for the support
P.s.
Here a link to some pics about the phone:
4shared.com/s/dipBSZcFc
I think it should be possible to just Flash another Regions Firmware via Androxydes Flashtool.
No need for unlock as long as u have any offical fw (XperiFirm comes with Flashtool and downloads offical files)
But I may be wrong tho, this just came to my mind in the first moment
LoaderFabi said:
I think it should be possible to just Flash another Regions Firmware via Androxydes Flashtool.
No need for unlock as long as u have any offical fw (XperiFirm comes with Flashtool and downloads offical files)
But I may be wrong tho, this just came to my mind in the first moment
Click to expand...
Click to collapse
Thanks you LoaderFabi for the suggest, so I will waiting for a confirmation about that.
Meanwhile can y tell me a link to a guide and download the tool?
Anyway, thanks again ?
You can flash any region's firmware without unlocking the bootloader. You need Xperifirm to download the firmware, and Flashtool to flash it.
Kuarinfou said:
You can flash any region's firmware without unlocking the bootloader. You need Xperifirm to download the firmware, and Flashtool to flash it.
Click to expand...
Click to collapse
Ok, and about the OTA's update? Will it be automatically? Or do I have something about? And how?
Can you link me a guide to flash the fw and, eventually, to do something about OTA's update?
Thanks
Sean_Droid said:
Ok, and about the OTA's update? Will it be automatically? Or do I have something about? And how?
Can you link me a guide to flash the fw and, eventually, to do something about OTA's update?
Thanks
Click to expand...
Click to collapse
Since it's an official firmware, you always get updates OTA (i think XZ will no longer get updates but no need to worry). I didn't see any guide to flash, i'll probably today write a guide to flash firmwares.
Kuarinfou said:
Since it's an official firmware, you always get updates OTA (i think XZ will no longer get updates but no need to worry). I didn't see any guide to flash, i'll probably today write a guide to flash firmwares.
Click to expand...
Click to collapse
Thanks y so much Kuarinfou, I will waiting for your guide. I don't remember where I red in this forum about the CSC and that it could not change also flashing a stock fw bringing the OTA's issue... Probably I remember wrong ?
Anyway, Quote me when you will do it.
Sean_Droid said:
Thanks y so much Kuarinfou, I will waiting for your guide. I don't remember where I red in this forum about the CSC and that it could not change also flashing a stock fw bringing the OTA's issue... Probably I remember wrong
Anyway, Quote me when you will do it.
Click to expand...
Click to collapse
https://forum.xda-developers.com/xperia-xz/how-to/guide-flashing-firmware-xperia-phones-t3860048
Kuarinfou said:
https://forum.xda-developers.com/xperia-xz/how-to/guide-flashing-firmware-xperia-phones-t3860048
Click to expand...
Click to collapse
Thanks you so much ?

Flashing unlocked to Tmobile firmware

So I'm currently going crazy.
Have s10+ unlocked.
Baseband version: G975U1UEU2ASGB
SM-G975U1_9_004
I'm wanting to flash tmobile firmware to improve cell signal.
I've done some research and know I need to flash U firmware just not sure which one and if it has to be them same as the current firmware the phone has.
Can someone please provide step by step on what I would need to do as well as what firmware I would need to flash to achieve this.
I don't want to mess it up and then suddenly get stuck on boot.
Thanks in advance.
XtreMe579 said:
So I'm currently going crazy.
Have s10+ unlocked.
Baseband version: G975U1UEU2ASGB
SM-G975U1_9_004
I'm wanting to flash tmobile firmware to improve cell signal.
I've done some research and know I need to flash U firmware just not sure which one and if it has to be them same as the current firmware the phone has.
Can someone please provide step by step on what I would need to do as well as what firmware I would need to flash to achieve this.
I don't want to mess it up and then suddenly get stuck on boot.
Thanks in advance.
Click to expand...
Click to collapse
Head over to sammobile and follow the directions in this link. You will need the modified Odin from here. The sammobile link is the latest t-mobile firmware. If you ever want to go back to the u1 firmware that is located here as well.
knife2240 said:
Head over to sammobile and follow the directions in this link. You will need the modified Odin from here. The sammobile link is the latest t-mobile firmware. If you ever want to go back to the u1 firmware that is located here as well.
Click to expand...
Click to collapse
Awesome thank you so much. I'll give it a go later today ?
Does anybody have a mirror or can you upload the latest tmobile firmware?
I've been trying to download for 4 days and at 92% the download just stops. Ive tried all sorts of different sites and nothing so far.
my experience is that samfirm works consistently while the others don't. Download the samfirm app then enter the model you want (SM-G975U). The region will be TMB for T-Mobile, and let it download the files and decrypt for you.
Try frija, I was losing my mind looking for it also, initially it didn't work but after installing c++ 8 something something it worked. Downloaded really fast also
I'm not able to find anything for T-Mobile USA in the latest version of this tool. Has anyone else been able to find it?

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