Can I downgrade to One UI 2.5 from 3.1? - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

Thank you for coming.
Can I downgrade to One UI 2.5 from 3.1?

Mavisran said:
Thank you for coming.
Can I downgrade to One UI 2.5 from 3.1?
Click to expand...
Click to collapse
Why u want to dwngrade ??? Nd also send ur about phone software information ss

Mavisran said:
Thank you for coming.
Can I downgrade to One UI 2.5 from 3.1?
Click to expand...
Click to collapse
have you done this? i also need to do it

FearLesS007 said:
Why u want to dwngrade ??? Nd also send ur about phone software information ss
Click to expand...
Click to collapse
i also need to do this.
here's my info:
Baseband: G981U1UEU1DUB7
Kernel: 4.19.113-20937596
Build: RP1A.200720.012.G981U1UEU1DUB7
Knox: 3.7
Knox API level 33
i'm on regular S20 factory unlocked in the US

konoplya said:
i also need to do this.
here's my info:
Baseband: G981U1UEU1DUB7
Kernel: 4.19.113-20937596
Build: RP1A.200720.012.G981U1UEU1DUB7
Knox: 3.7
Knox API level 33
i'm on regular S20 factory unlocked in the US
Click to expand...
Click to collapse
Yes dear u can I searched for uh which will be successfully can downgrade same binary here is the link enjoy
Download Samsung Galaxy S20 SM-G981U USC USA (US Cellular) G981USQU1BTJ7 firmware
Fast download latest Samsung Galaxy S20 firmware SM-G981U from USA (US Cellular) with G981USQU1BTJ7 and Android version 10
www.sammobile.com

Mavisran said:
Thank you for coming.
Can I downgrade to One UI 2.5 from 3.1?
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Click to collapse
Yes depends on your sw version & binary version

I have SM-G9880 S20 UltrA 5G Hong-Kong, and its firmwares bit number is 3 for Android 11 OneUI 3.1.
I want to downgrade to Oneui 2.5, but its firmwares bit numbers is less then 3 for all firmware versions.
Ive read that i cant do downgrade to firmware whose bit number is less then existing.
Is that means that for my model there is no possibility to downgrade from OneUI 3.1 to OneUI 2.5?
Even for OneUI 3.0 the bit number is 2, wich means that Samsung upped the bit number to 3 in OneUI 3.1 thus closing possibility to downgrade even to OneUI 3.0.
What can i do with this situation?
I need to flush my modem firmware.

I hope somebody can help I have the same issue I need to download grade to 2.5 from 3.1 on my SMG9880 (BRI)

Related

[Q] Install 4.4.2 on Note 3 Neo from another region

Purchased a Note 3 Neo in Hong Kong last year.
Model Number: SM-N7505
Android Version: 4.3
Baseband Version: N7505ZHUAND2
Currently running:
http://www.sammobile.com/firmwares/download/29517/N7505ZHUAND2_N7505ZZHAND2_TGY/
KNOX is already flipped, so I don't care.
Browsing http://www.sammobile.com/firmwares/database/SM-N7505/, I see that there are some 4.4.2 for various regions, but I need to have a 4.4.2 base in order to install a custom ROM correct?
I get a "Device has been modified. Software updates are not available" message when clicking "Check for Updates" - so my assumption is I'm going to have to do this manually? But do I just need to wait?
Edit:
This may answer my question: http://forum.xda-developers.com/note-3-neo/general/to-flash-bulgaria-firmware-german-sm-t3035794
Thanks for the help!
jbcholdings said:
Edit:
This may answer my question: http://forum.xda-developers.com/note-3-neo/general/to-flash-bulgaria-firmware-german-sm-t3035794
Thanks for the help!
Click to expand...
Click to collapse
I posted the question but I didn't find an answer to this, yet.
I would flash the newest firmware for the N7505 (http://www.sammobile.com/firmwares/download/43318/N7505XXUCOB1_N7505OXXCOB1_BGL/) and then the modem for Europe (N7505XXUCNG2).
But I don't know if this is possible?!

Need to know if I can downgrade Sprint Galaxy S9

Hi,
I have a Sprint Galaxy S9 running One UI Version 1.0, Android 9, Basebase G960USQS4CSC8.
I need to downgrade this phone to Android 8 in order to successfully record audio calls from both parties.
I tried flashing G960USQU3BRK1_G960UOYN3BRK1_SPR & G960USQU3BRJ5_G960UOYN3BRJ5_SPR but they fail.
I need to know if downgrading is at all possible and if so, what file I need to use to successfully boot this S9 into Android 8.0?
Thanks!
deviouskind said:
Hi,
I have a Sprint Galaxy S9 running One UI Version 1.0, Android 9, Basebase G960USQS4CSC8.
I need to downgrade this phone to Android 8 in order to successfully record audio calls from both parties.
I tried flashing G960USQU3BRK1_G960UOYN3BRK1_SPR & G960USQU3BRJ5_G960UOYN3BRJ5_SPR but they fail.
I need to know if downgrading is at all possible and if so, what file I need to use to successfully boot this S9 into Android 8.0?
Thanks!
Click to expand...
Click to collapse
You cannot downgrade the bootloader
G960USQS4CSC8 << Version 4
Flash an equal or higher BL version firmware
Thank you for the reply.
So I cant downgrade the S9 I have to Android 8 due to its Baseband version being 4...
Looks like I'll only be able to downgrade/upgrade the firmware using an Android 9 Firmware version, Not Android 8.
That really sucks.
Does anyone know what Android 9 version works with Call Recording applications?
Is this something that will eventually be fixed or this is how it is/deal with it?
Thanks!
*Detection* said:
You cannot downgrade the bootloader
G960USQS4CSC8 << Version 4
Flash an equal or higher BL version firmware
Click to expand...
Click to collapse

Note 10+ AT&T (SM-N975U)

Hi Guys,
I am looking to downgrade my Note 10+ AT&T from Android 10 to Android 9.
I have update my phone last week and i can't used my Mirrorlink app on my car aftermarket HU (AVIC-7000NEX)
Anyone still have not update to android 10 can tell me what the Baseband version of last security update for android 9? Maybe a screenshot of you Software Information would be awesome.
When to sammobile.com but it does not list AT&T phone.
https://www.sammobile.com/samsung/ga...ware/#SM-N975U
vietnight said:
Hi Guys,
I am looking to downgrade my Note 10+ AT&T from Android 10 to Android 9.
I have update my phone last week and i can't used my Mirrorlink app on my car aftermarket HU (AVIC-7000NEX)
Anyone still have not update to android 10 can tell me what the Baseband version of last security update for android 9? Maybe a screenshot of you Software Information would be awesome.
When to sammobile.com but it does not list AT&T phone.
https://www.sammobile.com/samsung/ga...ware/#SM-N975U
Click to expand...
Click to collapse
Try samfrew.com
Thank You!
E: nvm
I seriously need to update my samsung note 10+ sm - n975u unlocked software. I am stuck in android 10, october security patch. I just need someone to tell me the exact software to flash it with
Martins222 said:
I seriously need to update my samsung note 10+ sm - n975u unlocked software. I am stuck in android 10, october security patch. I just need someone to tell me the exact software to flash it with
Click to expand...
Click to collapse
At&t
I have an AT&T 10+ still running on Pie.
I refuse to upgrade as it runs fast, very stable and I know Q would screw it up bad.
Lol, a virus be less trouble than Q
Be warned, AT&T's last phone updates are usually their worst.

My Galaxy S9 SM-G960U1 haven't got Android 10 Update Yet ?

Hi,
XDA Community
So my inquiry today, is that
i realised samsung has just roll out the Android 10 Update for S9 devices, on Feb 2
but my phone is not getting updated yet via OTA, like always
I had no problem getting Android 9 (Pie) when it released.
but now, i am so confused, why my phone is not getting the update.
Well, i looked into SAMMOBILE official page, and some carriers of my model [SM-G960U1]
have already the Android 10 Update,
so my question here is, wich one of those sammobile.com - samsung - galaxy-s9 -firmware - #SM-G960U1]
, is my correct update or firmware
i figure out is the Uknown (XAA) Version [sammobile.com - samsung- galaxy-s9 - firmware - SM-G960U1 - XAA - download - G960U1UEU7DTA5 - 314846], but i need to be sure
so here we are, i need some help to get the correct firmware for my S9.
The things is that the PDA and CSC are the same on each Carrier, and is difficult to identify
i never had that issue with previous phones like S6, S3 or S7.
also, i looked into IME PAGE INFO, and says that is : XAG Version -> IMEI.info: CSC XAG
so, that confuse me.
NOTE: AND not MY Phone is not Rooted, i keep it official since i bought it.
so for you, i have the ADB Lines: of my S9 Phone:
[ril.debug.ntc]: [M:VZW, S:TFN, T:CDM, C:USA]
[ril.region_props]: [TFN.TFN]
[ril.product_code]: [SM-G960UZKATFN]
[ro.boot.carrierid]: [XAA]
[ro.boot.em.model]: [SM-G960U1]
[ro.boot.sales_code]: [TFN]
[ro.bootloader]: [G960U1UES7CSK2]
[ro.build.PDA]: [G960U1UES7CSK2]
[ro.build.display.id]: [PPR1.180610.011.G960U1UES7CSK2]
[ro.build.product]: [starqlteue]
[ro.carrier]: [unknown]
Click to expand...
Click to collapse
AND Thats all
very grateful that you can help me
I will appreciate it a lot
BoxEstil said:
Hi,
XDA Community
So my inquiry today, is that
i realised samsung has just roll out the Android 10 Update for S9 devices, on Feb 2
but my phone is not getting updated yet via OTA, like always
I had no problem getting Android 9 (Pie) when it released.
but now, i am so confused, why my phone is not getting the update.
Well, i looked into SAMMOBILE official page, and some carriers of my model [SM-G960U1]
have already the Android 10 Update,
so my question here is, wich one of those sammobile.com - samsung - galaxy-s9 -firmware - #SM-G960U1]
, is my correct update or firmware
i figure out is the Uknown (XAA) Version [sammobile.com - samsung- galaxy-s9 - firmware - SM-G960U1 - XAA - download - G960U1UEU7DTA5 - 314846], but i need to be sure
so here we are, i need some help to get the correct firmware for my S9.
The things is that the PDA and CSC are the same on each Carrier, and is difficult to identify
i never had that issue with previous phones like S6, S3 or S7.
also, i looked into IME PAGE INFO, and says that is : XAG Version -> IMEI.info: CSC XAG
so, that confuse me.
NOTE: AND not MY Phone is not Rooted, i keep it official since i bought it.
so for you, i have the ADB Lines: of my S9 Phone:
AND Thats all
very grateful that you can help me
I will appreciate it a lot
Click to expand...
Click to collapse
You don't need Android 10
Sent from my moto g(7) play using Tapatalk
PoochyX said:
You don't need Android 10
Sent from my moto g(7) play using Tapatalk
Click to expand...
Click to collapse
https://youtu.be/KL8U249nY5s
It's a complete tutorial..
Sent from my [device_name] using XDA-Developers Legacy app
BoxEstil said:
Hi,
XDA Community
So my inquiry today, is that
i realised samsung has just roll out the Android 10 Update for S9 devices, on Feb 2
but my phone is not getting updated yet via OTA, like always
I had no problem getting Android 9 (Pie) when it released.
but now, i am so confused, why my phone is not getting the update.
Well, i looked into SAMMOBILE official page, and some carriers of my model [SM-G960U1]
have already the Android 10 Update,
so my question here is, wich one of those sammobile.com - samsung - galaxy-s9 -firmware - #SM-G960U1]
, is my correct update or firmware
i figure out is the Uknown (XAA) Version [sammobile.com - samsung- galaxy-s9 - firmware - SM-G960U1 - XAA - download - G960U1UEU7DTA5 - 314846], but i need to be sure
so here we are, i need some help to get the correct firmware for my S9.
The things is that the PDA and CSC are the same on each Carrier, and is difficult to identify
i never had that issue with previous phones like S6, S3 or S7.
also, i looked into IME PAGE INFO, and says that is : XAG Version -> IMEI.info: CSC XAG
so, that confuse me.
NOTE: AND not MY Phone is not Rooted, i keep it official since i bought it.
so for you, i have the ADB Lines: of my S9 Phone:
AND Thats all
very grateful that you can help me
I will appreciate it a lot
Click to expand...
Click to collapse
XAA is one of several multi CSC firmware sets. Just flash it in Odin, youll be fine. HOME_CSC to not have it factory reset and CSC to have it factory fresh.
https://www.sammobile.com/samsung/galaxy-s9/firmware/SM-G960U1/XAA/download/G960U1UES7DTB2/319745/
and samfirm or frija to download it at over twice the speed
PoochyX said:
You don't need Android 10
Sent from my moto g(7) play using Tapatalk
Click to expand...
Click to collapse
very insightful.... posts like these are the glue that keeps this community together :: facepalm ::
Thanks to all,
i just figure out, that my device support XAA and TFN Carriers, and i just get the Android 10 update, today.
for some one that this can help
to switch between XAA or TFN, just depend on what type of SIM you are using, both can work on this samsung s9 model, the phone will automatically reboot and swith the best for you (XAA or TFN)
Have a great day!

Android 11 for SM-N9750

Hello,
I have a Note 10 + SM-N9750 under Android 10 DTL2
actualy no update for this phone?
any possibility to get it ?
Thanks
I'm waiting for it to I don't know what should I do to get the update my phone is SM-N9750
Same here SM-N9750 are there no updates regarding the release of android 11 to our phones?!
I hope Samsung will not forget us!
[email protected] said:
I hope Samsung will not forget us!
Click to expand...
Click to collapse
I just got my update today via Verizon. I have an N975u1
Update is available on Sammobile
PDA
N9750ZSU3EUA7
CSC
N9750OZS3EUA7
it keeps bootlooping on my phone after the upgrade (i'm using BRI). I would advise others to upgrade at their own risk.

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