Hi,
After my S21+ updated to android 13, my phone often lost signal, did not receive messages and calls. I want to roll it back to android 10 but don't know how to do it.
I found a few tutorials to find the factory images and do flash-all using adb, but I don't know where I can find the factory images of the S21+.
Please guide me in detail if you can.
Sincerely thank you.
First you should unlock your bootloader from official source.
Then browse through incognito mode via any third party browser about official Android 10 rom package for your device.
Find your device manufacturers website from the results and download the package and update through default updater Or flash using official flash tool (recommended).
Remember rolling back or downgrade Android version can brick your device
Depending on how the device is programmed.
Related
Hi all
A week ago a rooted my Samsung Galaxy S6 device following this post: http://forum.xda-developers.com/galaxy-s6/general/root-pingpongroot-s6-root-tool-t3103016
All was OK. At that point my device is using the Android Version: 5.0.2
The question I have is that now the version 5.1.1 (Lillipop) has been released, I would like to know if my rooted device can still be upgrading when the new version is released in my region (Mexico) by the phone provider. (Telcel). In case it cannot be updated automatically, I guess I will need to do it manually or unroot my device. In that scenario, Does someone know a good tutorial how to do that?
Regards!
@LesthadMK, sure you can update rooted devices. But it may not be possible via OTA update. You will have to download the full firmware and install it manually.
Because root makes changes to system partition, OTA fails when you have rooted. If you unroot and flash stock recovery and kernel back, then OTA may work. Otherwise, simply flash the full firmware, in .tar format using Odin software, and you're good.
It's good to have full firmware saved on PC anyway, as if in case you brick your device, you can fix it by installing your device's firmware manually.
If you need help with 5.1.1 firmware installation on your s6, let me know the build no. of your device.. I will guide you to page you need to look at.
Thanks for the help. I have download Odin in case I need to do it manually.
Also, mentioned that yesterday I read an article saying that using the Samsung software "Smart Switch" in an rooted device will upgrade the device to the newest version (which I don't know if it it's true or not) Any way this is the link I found:.... Well seems since I'm newby I cannot post some external links. So just google it as: How to Use Smart Switch to Update Your Galaxy S6—Even It's Rooted.
By other hand, this is the build number for my device: G920IDVU1AOE3, so if you can help me to know how to upgrade that version that would be very helpful
Regards!
Hi Everyone,
It's a privilege to be here, Pls I have endlessly searched the threads but none was helpful so far.
I want to update my HTC 10 from Nougat 7.0 to Oreo 8.0 but everytime I download through the settings and about phone and click on software update; it complains the Os has been modified and asuch update will be reverted.
I already downloaded 3.16.617.2 from HTC official portal but it gave same complain.
My software build number is 2.41.401.4, Baseband Version: [email protected]
Please someone should help me with the link of its Oreo 8.0, build number...
ruu...exe download link, thanks in advance.
antstrides said:
Hi Everyone,
It's a privilege to be here, Pls I have endlessly searched the threads but none was helpful so far.
I want to update my HTC 10 from Nougat 7.0 to Oreo 8.0 but everytime I download through the settings and about phone and click on software update; it complains the Os has been modified and asuch update will be reverted.
I already downloaded 3.16.617.2 from HTC official portal but it gave same complain.
My software build number is 2.41.401.4, Baseband Version: [email protected]
Please someone should help me with the link of its Oreo 8.0, build number...
ruu...exe download link, thanks in advance.
Click to expand...
Click to collapse
If your device is rooted or if you have TWRP installed, you can't apply the update via OTA
If you want to update via OTA, you will have to unroot your device and undo any changes that you made to the system partition and you will have to replace TWRP with a copy of your stock recovery. Then you can apply the update. You will have to root and install TWRP again after the update is applied.
Or, you can manually download the update from the internet and then use a PC to manually flash via your device's compatible flashtool or via fastboot(whichever is intended to flash firmware on your device).
Sent from my SM-S767VL using Tapatalk
I already tried what you suggest but to no avail!
Droidriven said:
If your device is rooted or if you have TWRP installed, you can't apply the update via OTA
If you want to update via OTA, you will have to unroot your device and undo any changes that you made to the system partition and you will have to replace TWRP with a copy of your stock recovery. Then you can apply the update. You will have to root and install TWRP again after the update is applied.
Or, you can manually download the update from the internet and then use a PC to manually flash via your device's compatible flashtool or via fastboot(whichever is intended to flash firmware on your device).
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Good Morning Everyone,
@Droidriven, thanks for your kind response, but I did what you suggest, re-install Nougat Rom from Htc official link deliberately did not root it at first, click on the OTA & yet, got same complain.
I even tried 2.41.401.41--3.16.401.2_S-On_firmware.zip with it but doesn't still work.
But from my research, this is what I found out that works..
* The Phone (HTC 10) is Hong Kong Unlocked Version with build number 2.41.401.4, [email protected] as its base band.
the ROM that will work must share same details with the one provided above.
Anyone that has Oreo 8.0 (2.41.401.4) Update in RUU file format, should Please kindly share its download link with me, I regret the inconveniences, thanks in advance.
I already tried what you suggest but to no avail!
Good Morning Everyone,
@Droidriven, thanks for your kind response, but I did what you suggest, re-install Nougat Rom from Htc official link deliberately did not root it at first,
click on the OTA & yet, got same complain.
I even tried 2.41.401.41--3.16.401.2_S-On_firmware.zip with it but doesn't still work.
But from my research, this is what I found out that works..
* The Phone (HTC 10) is Hong Kong Unlocked Version with build number 2.41.401.4, [email protected] as its base band.
the ROM that will work must share same details with the one provided above.
Anyone that has Oreo 8.0 (2.41.401.4) Update in RUU file format, should Please kindly share its download link with me, I regret the inconveniences, thanks in advance.
Hello. Yesterday i installed latest OTA Android version (TB-J606L_S320030_210923_ROW) and noticed that it is really slow and it has even more bloatware that i don't want. I don't need to root it (because of bloatware removal) as i also need to revert it to default state as it was before update.
1. It is possible to find which version i had before this upgrade?
2. How could i downgrade system to previous version (i think it was Android 10 but i'm not sure)
PS: I successfully downgraded/rooted some devices but as every brand has it's specific way to perform downgrade, i'm asking here. Any advice would help and i'm aware of dangers of downgrading/rooting devices (bricking). In any case, it would be awesome to also link unbricking guide for TB-J606L, just in case It's always better to have plan B.
Update: I found source of roms for my device but i can't recognize which versions are old Android 10 and which are the new Android 11.
There was a huge performance drop on Android 12, so I want to downgrade to Android 11.
Can I flash the file mentioned in this thread (https://forum.xda-developers.com/t/asus-rog-phone-5-raw-firmware-flash-file-fastboot-ww-rom.4268331/) on a locked bootloader?
Hello, I suppose you are on WW-31.0810.1226.91 firmware, so in order to go back to A11 you should use the provided firmware from ASUS, which is named ''Version Android 12 to Android 11''.
You download it from this page https://www.asus.com/supportonly/ROG Phone 5 (ZS673KS)/HelpDesk_BIOS/ and will have this name UL-ASUS_I005_1-ASUS-99.0840.2201.226-1.1.102-user.zip and you rename it to a later version like UL-ASUS_I005_1-ASUS-100.0850.2202.227-1.1.159-user.zip that is a completly arbitrary name but will allow to install an older update over a newer one. I can not guarantee this will work or doesn't break your device, because with RP5 is a matter of luck.
Wish You good luck and let me know.
Hello
I've been reading forums and downloading files for days. Many of the links in the posts no longer work. Posts are 5 years and older. There are no new ones. At least not one that actually works. Downgrade I mean. That's why I wrote this question and I'm asking for help - how to really downgrade my Galaxy S6 G920F.
Thanks for the help.
PSA: Downgrading WILL void your warranty!
What have you already done (what method, software) have you already tried?
The 100% surefire way to downgrade your phone (or any android phone really), is to:
1. Backup your phone data.
2. Switch the phone into download mode, connect to PC, boot into TWRP recovery through fastboot
3. Wipe your 7.0 firmware and all data
4. Flash android 5.02 ROM
For a samsung phones ODIN + Freya is also an option. Odin is a samsung's firmware flashing tool, Freya is a 3rd party program that can download the stock firmware android for you. All of these tools are available online, and you can ask on a samsung subsection of XDA about how to use them - people can give you up to date links.
I'm laughing because you write quite a lot in three days. Of course, this method does not work.
Is there anyone willing to help?
Totesnochill said:
PSA: Downgrading WILL void your warranty!
What have you already done (what method, software) have you already tried?
The 100% surefire way to downgrade your phone (or any android phone really), is to:
1. Backup your phone data.
2. Switch the phone into download mode, connect to PC, boot into TWRP recovery through fastboot
3. Wipe your 7.0 firmware and all data
4. Flash android 5.02 ROM
For a samsung phones ODIN + Freya is also an option. Odin is a samsung's firmware flashing tool, Freya is a 3rd party program that can download the stock firmware android for you. All of these tools are available online, and you can ask on a samsung subsection of XDA about how to use them - people can give you up to date links.
Click to expand...
Click to collapse
That is assuming they have TWRP.
Also, the part you mention about "boot into download mode, connect to PC then boot to TWRP via fastboot" is not correct because Samsung is not compatible with fastboot, adb works but fastboot does not. Some Samsung devices technically have a "fastboot mode" but it isn't functional, it doesn't respond to fastboot commands, it's basically useless.
Also, you can't flash a firmware that has a lower binary than the currently installed firmware so if the binary of the downgraded firmware is lower than the binary of the currently installed firmware, the downgraded firmware can't be flashed.
Samsung is making it harder and harder to downgrade their devices.
OK. I'm afraid I'm missing the point of what's being said.
I know it is possible and there are also posts about it, but they are old, the links in them do not work. I'm asking for an expert who knows how to do this, philosophizing about what it would be like if it somehow doesn't really help me and I'm not interested either
I'm only interested in a positive thought, help and not brainstorming, if you understand me?
No offense