Database Users

Upgrading from B170 to B313/Downgrading back to earlier version

Hi guys,
New to the forum here. I've flashed B170 a while back to get the most stable Lollipop edition, but I'd really like to try Marshmallow. The thing is, I can't figure out how to downgrade it back to B100/B121/B130 or to Upgrade it to B313. Is it possible to do either of those two things without an unlocked bootloader? There doesn't seem to be a way of flashing any packages on the phone, so I've sort of resigned myself to having to flash it via adb, but is this possible when I don't have an unlock code for the bootloader? Thanks for any help; I've really read through all the threads, but I couldn't come up with an answer.

Hi !
In order to upgrade to MM, you will have to downgrade to an upgradable version like B140. All the things you need are in the MM Upgrade topic of this forum.
In order to rollback from MM fo Lollipop, everything is explained in the same topic but you'll have to download a temporary system (B300) and then you'll be able to downgrade. Anyway, everything is in the MM Update topic.
I don't think you have to unlock bootloader to do all that but it would be easier because you would be able to use Honor 7 Multitool which is a software that does everything for you in no time
Good luck (MM version of the Honor 7 is awesome !)
Envoyé de mon PLK-L01 en utilisant Tapatalk

Thanks for the reply! However, you can't use the B300 rollback on B170 (which is a Lollipop rom), can you? I've read the Marshmallow topic, and I was none the wiser - I can't seem to figure out if there's any way to get back to an upgradable version without flashing with the Honor tool (which requires an unlocked bootloader, non?). Sorry for the n00b-factor!

rebanm said:
. Sorry for the n00b-factor!
Click to expand...
Click to collapse
so many treads around here described the solution to do! Please use the search engine too
read following from there: http://forum.xda-developers.com/showpost.php?p=64673136&postcount=74
and...
try to flash the B313 Rollback file first!
Maybe it will stop with "not successful!" nearly ~93% but THIS DOESN’T MATTER! a reboot should bring you to interim B300. Then you should be able to flash the B121 Full update out of your dload folder from your internal SD. If this work, you should be able to update to B313. You do not lost your personal data, but make a backup to be sure!

[Discussion] Rollback package for various models

Hi Folks,
Seeing around various section of all the models when users are struggling to restore their phone either due the flashing an incorrect firmware or after updating via Firmware Finder app and then wanting to rollback to earlier version of EMUI. They sometime cannot even flash the custom ROMs due to FRP lock or unable to flash the custom recovery and even after trying all the known methods, we struggle to restore their phone as they messed up badly with their phone and model or version change to something unexpected.
In this thread, lets discuss and share about rollback files available for various models (be it MM, Lollipop anything) so that new users could use it to restore to their original version and then update to official versions.

Hi,
thank you for this discussion.
I'm a new KIW-L21 user stuck on the firmware B370.
I read a lot of post and try update.app, stock roms, custom roms, TRWP backups, ...
So far impossible to downgrade to a pre-VoLTE L21 firmware to flash LOS.
I hope I will find a solution other than selling my phone.

organite said:
Hi,
thank you for this discussion.
I'm a new KIW-L21 user stuck on the firmware B370.
I read a lot of post and try update.app, stock roms, custom roms, TRWP backups, ...
So far impossible to downgrade to a pre-VoLTE L21 firmware to flash LOS.
I hope I will find a solution other than selling my phone.
Click to expand...
Click to collapse
Hope someone with this version cam upload the twrp backup. Check in the repository section. It may have the backups uploaded.

I have kiw-l21c432b340 twrp backup.
Issue is what is needed in this ZIP to not upload 2.5gb ?
And also not to give personal data / phone imei ....?
I have this content :

rodolphe06 said:
I have kiw-l21c432b340 twrp backup.
Issue is what is needed in this ZIP to not upload 2.5gb ?
And also not to give personal data / phone imei ....?
I have this content :
Click to expand...
Click to collapse
Just boot to twrp.
Backup system+boot
Zip it. It will be around 1 GB with no personal data of yours.

shashank1320 said:
Hope someone with this version cam upload the twrp backup. Check in the repository section. It may have the backups uploaded.
Click to expand...
Click to collapse
Finally, I succeed to rollback to B130 from B370 on KIW-L21 with these TWRP backup files https://www.androidfilehost.com/?fid=24545070682210513

organite said:
Finally, I succeed to rollback to B130 from B370 on KIW-L21 with these TWRP backup files https://www.androidfilehost.com/?fid=24545070682210513
Click to expand...
Click to collapse
Excellent buddy. Good. Enjoy

organite said:
Finally, I succeed to rollback to B130 from B370 on KIW-L21 with these TWRP backup files https://www.androidfilehost.com/?fid=24545070682210513
Click to expand...
Click to collapse
Great to know that you managed it. Did you flash any recovery at all? Will try later to boot to TWRP and flash what you shared. Thanks!

You're right, I flash everything in the twrp backup except any recovery.

How to rollback to stock?

Hi there, im currently on the leaked oreo beta on my A2017G but since this month there should be the official oreo out i wish to rollback to stock. Do i just need to flash latest rom on it? Do i need to relock the bootloader and remove twrp to get new ota updates?

https://forum.xda-developers.com/axon-7/how-to/guide-return-to-stock-custom-rom-t3634369 (like i also suggested at reddit )

Nougat NPN25.137-35 to Oreo update

Hi guys I rooted my phone long back.
Now my query is I am on nougat NPN25.137-35 indian version and rooted below is attached file. I want to upgrade on Oreo. So I need to make fresh upgrade of Oreo or any procedure to update so I don't lose any of my data and application.
After update I need to make it root again.
Please provide me procedure and link.
Thanks.

askool said:
Hi guys I rooted my phone long back.
Now my query is I am on nougat NPN25.137-35 indian version and rooted below is attached file. I want to upgrade on Oreo. So I need to make fresh upgrade of Oreo or any procedure to update so I don't lose any of my data and application.
After update I need to make it root again.
Please provide me procedure and link.
Thanks.
Click to expand...
Click to collapse
Use lenovo moto smart assistant and update your device. If you want your data then take a backup of it in twrp or app only.

After that flash latest TWRP 3.2.3.1 and root it by flashing magisk18.zip like you did with nougat.

How to downgrade from Android 12 to Android 10?

Hi, I'm sorry if someone already asked this. I just finished updating my T-mobile HD1925 OP7T Pro McLaren to android 12 (automatic update) and would like to downgrade. Could someone please share the steps on how to backup and downgrade it? Thanks so much in advance

Downgrade with MSM tool. That will wipe all your data. You'll need to backup whatever you want saved using some other method first.
Instructions: https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4043925/