GALAXY S10+ SM-G975U/U1 Can't Flashing lower SW Firmware - Samsung Galaxy S10+ ROMs, Kernels, Recoveries, & O

hi.yestarday i brought brand new g975u with preinstalled android 9 with no ota's couse i am not from usa and csc is for usa, so i test flashed other carrier branded csc firmware verizon (G975UOYN5GUBH) android 11 with sw 5 i cannot downgrading os (lower sw number ) i think couse locked/new bootloader how can i flash lower sw firmware need to flash correct firmware: g975u1 (usa/xaa)
G975U1OYM4FUA4

Why in the world would you even flash branded software, what's the reason to do that? What you can do is flash unbranded software with CSC of your choice. You won't be able to downgrade, ever.

Vatt`ghern said:
Why in the world would you even flash branded software, what's the reason to do that? What you can do is flash unbranded software with CSC of your choice. You won't be able to downgrade, ever.
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My samsung s10 plus was unlocked before on android 9 when I got it, but when i flashed it with andriod 11 SPR firmware it became network locked. How do i fix this"? Please

Tallytune said:
My samsung s10 plus was unlocked before on android 9 when I got it, but when i flashed it with andriod 11 SPR firmware it became network locked. How do i fix this"? Please
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try flashing an open carrier build with odin.

cheez3 said:
try flashing an open carrier build with odin.
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What do you mean open carrier?

Tallytune said:
What do you mean open carrier?
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A build not associated with a carrier.

ldeveraux said:
A build not associated with a carrier.
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OK you mean I should use a Smg975u1 build on my Smg975u?

Tallytune said:
OK you mean I should use a Smg975u1 build on my Smg975u?
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I'm not sugguesting anything! I'm just translating what was written.

ldeveraux said:
I'm not sugguesting anything! I'm just translating what was written.
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I am new to all this and I am really troubled by this...anyways thanks

Tallytune said:
I am new to all this and I am really troubled by this...anyways thanks
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Were you able to fix this?

Related

Where's the rom for LM-G710ULM?

Is it ever coming?
leapfrog2 said:
Is it ever coming?
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In terms of custom ROMs no. Your version of the phone can't be bootloader unlocked. Only the European version (g710em) can be unlocked.
LameMonster82 said:
In terms of custom ROMs no. Your version of the phone can't be bootloader unlocked. Only the European version (g710em) can be unlocked.
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Hmm ur wrong yes it can be
https://forum.xda-developers.com/lg-g7-thinq/how-to/how-to-bootloader-unlock-g7-thinq-t-t3963568
rogerssnpy said:
Hmm ur wrong yes it can be
https://forum.xda-developers.com/lg-g7-thinq/how-to/how-to-bootloader-unlock-g7-thinq-t-t3963568
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Yeah but nothing is officially supported and roms require android 9. Once a phone gets updated to android 9 it loses fastboot.
There isnt a dev with ulm.. i have stopped any development myself since i dont have a computer to compile or even work with via ssh for remote

Samsung S20 Ultra Engineering firmware SM-G9880 SM-G988U SM-G988U1 SM-G988B

Samsung S20 Combination Engineering firmware used to check all hardware features like back camera, front camera, sensors, RAM memory, ROM memory. You may also run a test that shows you the results of the Galaxy S20 phone diagnostics. You should be able to use this professional firmware to bypass and remove Factory Reset Protection, Google Account verification or Google Account protection.
Cheers
SM-G9880-ATA6
SM-G9880-ATB8
SM-G988U-ATB5
SM-G988U1-ATB8
SM-G988B-ATB5
Who will be able to try this ?
daillcyruz said:
Who will be able to try this ?
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Anyone with the G9880, NOT the US version most are getting.
VZTech said:
Anyone with the G9880, NOT the US version most are getting.
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My bad didnt see the type model in the subject my bad.
SM-G988U
daillcyruz said:
My bad didnt see the type model in the subject my bad.
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U.S. version uploaded.
Cheers
I have 988U it's been a few phones since I was able to flash anything... is the purpose to use the eng boot to unlock bootloader and root or what not...?
sml20044 said:
I have 988U it's been a few phones since I was able to flash anything... is the purpose to use the eng boot to unlock bootloader and root or what not...?
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I am hoping that this firmware will allow some sort of exploit. I do not have an S20 Ultra yet.
I plan on posting other models firmware soon.
Cheers
I know how to flash and read instructions i am willing to test. I been using xda... Odin/xposed/root/twrp but hell its been soooo long since anyone had any chance of rooting so if you wanna tell me what to do to help I'm in. :good:
Is there a way to root a model G988U?
windows4droid said:
Is there a way to root a model G988U?
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Not yet
windows4droid said:
Is there a way to root a model G988U?
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Cozzeck said:
Not yet
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A US version snapdragon will NEVER be rooted.
Is there a way to root the exynos version?
I have a G988B. This is the Australia/Optus version. Will this work?
Inenting said:
Is there a way to root the exynos version?
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If your bootloader is unlocked then you should be able to root.
Cheers
unfnknblvbl said:
I have a G988B. This is the Australia/Optus version. Will this work?
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No it will not. Is your bootloader unlocked?
Cheers
EMSpilot said:
Samsung S20 Combination Engineering firmware used to check all hardware features like back camera, front camera, sensors, RAM memory, ROM memory. You may also run a test that shows you the results of the Galaxy S20 phone diagnostics. You should be able to use this professional firmware to bypass and remove Factory Reset Protection, Google Account verification or Google Account protection.
Cheers
SM-G9880-ATA6
SM-G9880-ATB8
SM-G988U-ATB5
SM-G988U1-ATB8
SM-G988B-ATB5
Click to expand...
Click to collapse
Do you have the combination firmware for G988N?
SM-G988N
Barcovn said:
Do you have the combination firmware for G988N?
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The combination firmware for the SM-G988N is not available yet. Will post when it does become available.
Cheers
G988B
Can i change the region code(CSC)?
mine is SM-G988B/DS,any firmware for yet??
@[email protected] said:
mine is SM-G988B/DS,any firmware for yet??
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Not yet but will post when available.
Cheers

What did I do wrong?

I have my reasons so please, if you don't mind (respectfully) only focus on the issue at hand.
I have an unlocked S20 Ultra. I went to SAMMobile and downloaded the latest T-Mobile firmware -- G988U1UES1ATD1_G988U1OYM1ATD1_TMB
I used ODIN and flashed all 5 files. I rebooted and to my surprise, NOTHING. It booted back up with the same Firmware.
How do I get T-Mobile firmware on this thing?
I may have just figured it out, I think I need to flash the SM-G988U not SM-G988U1, if anyone could confirm it would be appreciated.
SyCoREAPER said:
I may have just figured it out, I think I need to flash the SM-G988U not SM-G988U1, if anyone could confirm it would be appreciated.
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Everything you need is here :
https://www.sammobile.com/samsung/galaxy-s20-ultra/firmware/#SM-G988B
flash a rom for another device is very angerous....
UNIK97122 said:
Everything you need is here :
https://www.sammobile.com/samsung/galaxy-s20-ultra/firmware/#SM-G988B
flash a rom for another device is very angerous....
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Thanks but G988B appears to be the international model, I have the US model
SyCoREAPER said:
Thanks but G988B appears to be the international model, I have the US model
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click on your device model, i just give you the main site not for your specific device:fingers-crossed:

S20+ 5G US VERSION UPDATE ANDROID 12

Hello dear; I just bought a Galaxy S20+ 5G which is Snapdragon with carrier code XAA/XAA/VZW and is running android 11 with ONE UI 3.1 I want to update to android 12 UI 4.1 but I'm not in the United States I live in the Ivory Coast so I can't receive updates. What technique should I use? flash U1 where to change CSC code?
nicohack1 said:
Hello dear;
I just bought a Galaxy S20+ 5G which is Snapdragon with carrier code XAA/XAA/VZW and is running android 11 with ONE UI 3.1 I want to update to android 12 UI 4.1 but I'm not in the United States I live in the Ivory Coast so I can't receive updates. What technique should I use? flash U1 where to change CSC code?
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You can flash the latest version of U firmware or U1
iBowToAndroid said:
You can flash the latest version of U firmware or U1
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Hello Thank you for the answer, after the flash I can always use my foreign sim card (ivory coast)
nicohack1 said:
Hello Thank you for the answer, after the flash I can always use my foreign sim card (ivory coast)
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I have absolutely no way to know if this model is compatible with your carrier. But if it's currently working fine now, then it should also work after you do the flash
iBowToAndroid said:
I have absolutely no way to know if this model is compatible with your carrier. But if it's currently working fine now, then it should also work after you do the flash
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Okay thank , Ok it's obvious, but is there a way to know if a phone is totally unlocked?
nicohack1 said:
Okay thank , Ok it's obvious, but is there a way to know if a phone is totally unlocked?
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What is your exact definition of "totally unlocked" ?
iBowToAndroid said:
What is your exact definition of "totally unlocked" ?
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I took the phone from a good price market I don't know if it is blacklisted or if the sim card unlock is temporary for fear of flashing an Android 12 update and seeing the phone locked by Samsung
iBowToAndroid said:
I have absolutely no way to know if this model is compatible with your carrier. But if it's currently working fine now, then it should also work after you do the flash
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And the box where I see XAA/XAA/VZW while I'm not using a Vizeron Wireless chip doesn't cause a problem?
iBowToAndroid said:
You can flash the latest version of U firmware or U1
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I downloaded a U1 firmware I will like to know if I can flash only the AP box to have just the ANDROID version 12?
nicohack1 said:
I downloaded a U1 firmware I will like to know if I can flash only the AP box to have just the ANDROID version 12?
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No, you must flash all 4 files
iBowToAndroid said:
No, you must flash all 4 files
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Is there a video that can teach us how to root s20 fe 5g G781b?.
HelltioEVGS said:
Is there a video that can teach us how to root s20 fe 5g G781b?.
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Click to collapse
http://www.google.com/search?q=how+to+root+g781b+video
iBowToAndroid said:
Google
Search the world's information, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for.
www.google.com
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...........That was like,look it for yourself,don't bother me..............what? do you think i wasn't lookning on google?........never mind then,just avoid my other message.
HelltioEVGS said:
...........That was like,look it for yourself,don't bother me..............what? do you think i wasn't lookning on google?........never mind then,just avoid my other message.
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Click to collapse
One of the core rules of online internet forums is to not waste other members' time by asking questions which can easily be answered by a Google search. You're looking for information that doesn't require input from any experienced members or developers
Why
iBowToAndroid said:
One of the core rules of online internet forums is to not waste other members' time by asking questions which can easily be answered by a Google search. You're looking for information that doesn't require input from any experienced members or developers
Click to expand...
Click to collapse
Why this even exist then if we can use google?........thanks anyway.

LG Wing 5g (LM-F100TMW) Dual Sim Variant

Hi! I need some info on how will i be able to find the correct kmz or firmware for this variant. As what the title says, it is a LM-F100TMW with Android version 11.
When i try to check via IMEI on LGROM, it says that i am using a LM-F100EMW variant from TAIWAN or TWN. I already downloaded the recommended firmware from that website but I'm still not sure if it is the right one.
Just needed to make sure, you know? Haha! Thanks!
Pinesei said:
Hi! I need some info on how will i be able to find the correct kmz or firmware for this variant. As what the title says, it is a LM-F100TMW with Android version 11.
When i try to check via IMEI on LGROM, it says that i am using a LM-F100EMW variant from TAIWAN or TWN. I already downloaded the recommended firmware from that website but I'm still not sure if it is the right one.
Just needed to make sure, you know? Haha! Thanks!
Click to expand...
Click to collapse
If it's not the correct firmware,LGUP will give you an error saying you can't swap firmware from region_x to region_z as an example.
Surgemanxx said:
If it's not the correct firmware,LGUP will give you an error saying you can't swap firmware from region_x to region_z as an example.
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Click to collapse
I see! Thanks for that, I'll try it later.
Pinesei said:
I see! Thanks for that, I'll try it later.
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Click to collapse
I would do it as a refurbish as well so you have a clean install.Let me know if I can help any other way!
Surgemanxx said:
I would do it as a refurbish as well so you have a clean install.Let me know if I can help any other way!
Click to expand...
Click to collapse
I will, thanks!
Got it to patch from android 11 to 12 using the said firmware recommended from LGROM. Also, thank you @Surgemanxx for the help.
Now I'm wondering when will be the Android 13 Firmware be available on LGROM. Haha!
Please help me to update to android 12 , I'm still in android 10. Thanks in advance.
hesly said:
Please help me to update to android 12 , I'm still in android 10. Thanks in advance.
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Which variant do you have?
Surgemanxx said:
Which variant do you have?
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Click to collapse
LG Wing 5g (LM-F100TMW)​
neverminded I got it. Thanks.
hesly said:
neverminded I got it. Thanks.
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Okay,I've been away most of the day.Glad you got it worked out!
Is this dual sim model 256GB? What 5g bands are supported? Planning to get one because of android 13.
wil0campo said:
Is this dual sim model 256GB? What 5g bands are supported? Planning to get one because of android 13.
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All variants have A13 I have seen.My 2 do,and they're U.S. carrier devices.

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