Downgrade from 9.1.0.275 to Oreo - Huawei P10 Questions & Answers

I updated my Huawei P10 to 9.1.0.275 since a user claimed the latest update fixed the video camera (ongoing focus pumping). A false claim, was not fixed so you cannot use the video camera.
Unfortunately I cannot downgrade to Oreo anymore. Latest possible rollback is 9.0.1.185.
Does anyone know how to downgrade to Oreo again?
Many thanks
(432-L09)

Hi!
Anyone with a working solutions?
I've tried to downgrade with hisuite, but work only to downgrade to 9.0.1.185. After that, only option is to update again to 9.1.0.252.
Thank you!

Install HiSuite latest version.
- Select Update
- Select Earlier Versions
- Downgrade
Downgrade rule: 9.1 => 9.0 => 8.0

Related

Version downgrade

I have searched everywhere but I didn't find a reply to my question.
A couple of days ago I have updated my phone LLD-L31 to the version 8.0.0.132 through Firmware Finder (it worked for me with proxy method) then I decided to revert back to the previous version 8.0.0.131. So I started reading guides to install a firmware on Huawei/Honor devices, I have downloaded the FullOTA package version 8.0.0.131 with Firmware Finder, placed it in the folder dload on my SDcard and started the intstallation in the project menu (accessible digiting *#*#2846579#*#* in the dialer), it started but suddenly it ended with a message "installation failed".
So my question is: how can i revert to the previous version of the software (or to the out of the box firmware installed on my device)?
karmakey said:
I have searched everywhere but I didn't find a reply to my question.
A couple of days ago I have updated my phone LLD-L31 to the version 8.0.0.132 through Firmware Finder (it worked for me with proxy method) then I decided to revert back to the previous version 8.0.0.131. So I started reading guides to install a firmware on Huawei/Honor devices, I have downloaded the FullOTA package version 8.0.0.131 with Firmware Finder, placed it in the folder dload on my SDcard and started the intstallation in the project menu (accessible digiting *#*#2846579#*#* in the dialer), it started but suddenly it ended with a message "installation failed".
So my question is: how can i revert to the previous version of the software (or to the out of the box firmware installed on my device)?
Click to expand...
Click to collapse
You should have an option to downgrade in the about section/ the update menu of your phone if you did it right.
Otherwise you may need to use the HuRupdater Method.
Fredin_ said:
You should have an option to downgrade in the about section/ the update menu of your phone if you did it right.
Otherwise you may need to use the HuRupdater Method.
Click to expand...
Click to collapse
Thanks for your reply!
I don't have this option, but if I remember well I hadn't it also in the previous version of the firmware.
So i can't install a previous version of the firmware simply downloading it an putting into dload folder of the SDcard?
karmakey said:
Thanks for your reply!
I don't have this option, but if I remember well I hadn't it also in the previous version of the firmware.
So i can't install a previous version of the firmware simply downloading it an putting into dload folder of the SDcard?
Click to expand...
Click to collapse
Can you please specify why do you want to roll back?
Because most people just wanna upgrade to a newer version.Newwr versions will have better stability so it's recommended to keep the latest version unless you have some bugs.
I honestly don't know why the dload method doesn't work, seems that it doesn't work for most people.
I think you'll be able to roll back using HuRupdater. But that'll mean you'll have to unlock bootloader and flash twrp first. Then you can go all stock from there.
Here's a guide to the HuRupdater from @zxz0O0
https://www.google.co.in/amp/s/foru...lash-official-firmware-recovery-t3769279/amp/
Fredin_ said:
Can you please specify why do you want to roll back?
Because most people just wanna upgrade to a newer version.Newwr versions will have better stability so it's recommended to keep the latest version unless you have some bugs.
I honestly don't know why the dload method doesn't work, seems that it doesn't work for most people.
I think you'll be able to roll back using HuRupdater. But that'll mean you'll have to unlock bootloader and flash twrp first. Then you can go all stock from there.
Here's a guide to the HuRupdater from @zxz0O0
https://www.google.co.in/amp/s/foru...lash-official-firmware-recovery-t3769279/amp/
Click to expand...
Click to collapse
After installing the version 132 I asked the technical support through HiCare and they told me that installing firmware with Firmware Finder could void warranty so I decided to revert to the previous firmware and wait for regular OTA by Huawei.
karmakey said:
After installing the version 132 I asked the technical support through HiCare and they told me that installing firmware with Firmware Finder could void warranty so I decided to revert to the previous firmware and wait for regular OTA by Huawei.
Click to expand...
Click to collapse
I'm not sure but I think you are on the latest build for your varient now so you won't be getting any updates untill a next build comes in.
I don't think you'll be able to roll back without the firmwares from firmware finder as you don't have an option to roll back.
The best option now would be to just wait for the next official build(might come soon as a small ota which has security patches) and then check if you are facing any issues installing which you won't as you are not rooted and dosent have an unlocked bootloader. So don't worry ?
Fredin_ said:
I'm not sure but I think you are on the latest build for your varient now so you won't be getting any updates untill a next build comes in.
I don't think you'll be able to roll back without the firmwares from firmware finder as you don't have an option to roll back.
The best option now would be to just wait for the next official build(might come soon as a small ota which has security patches) and then check if you are facing any issues installing which you won't as you are not rooted and dosent have an unlocked bootloader. So don't worry
Click to expand...
Click to collapse
Version 8.0.0.133 with July security patch just arrived and installed through official OTA!
karmakey said:
Version 8.0.0.133 with July security patch just arrived and installed through official OTA!
Click to expand...
Click to collapse
Good to hear you are up and running fine ?
Want to downgrade my honor 9 lite
After some update the theme engine crashed. Themes can no longer change the notiifcation bar icons and shortcuts icons.
Downgrading version Problem
I used firmware finder and dns method to downgrade my honor 9 lite and while i register update on firware finder and opens hisuite for update it is saying u r on already the latest version
Plz help me with downgrading my version 9 to 8

Lock bootloader again with oeminfo to try the warranty repair

Hi, unfortunately my p10 drop on the floor from an high of 8 cm... Yes almost 4 in an the camera now has a strange yellow border. Of course this issue happens only on the color camera. The b/w camera works well.
The problem is that I have unlocked the bootloader. Can I do something to prepare the phone for rma?
I've the original oem info and of course the unlock code.
Thank you in advance
Maybe downgrade to nougat and then ota update to oreo will help. When I made debrand had unlocked bootloader and frp. Then did ota update to oreo and now have bootloader and frp properly locked.
lukastob said:
Maybe downgrade to nougat and then ota update to oreo will help. When I made debrand had unlocked bootloader and frp. Then did ota update to oreo and now have bootloader and frp properly locked.
Click to expand...
Click to collapse
What guide should I follow for this?
For debrand I used this guide:
https://forum.xda-developers.com/p10/how-to/huawei-p10-debrand-rebrand-update-guide-t3691013
but I was doing it on nougat and I am not sure how it works with downgrading from oreo to nougat.
If you are already on oreo (and C432 region) you could try to use this guide :
https://forum.xda-developers.com/p10/how-to/guide-manual-updgrade-to-update-oreo-t3758286
tutorial 2 to flash the first full-ota oreo 8.0.0.360 from: http://pro-teammt.ru/firmware-database
but here is question to @Jannomag if it's certain that the script will work from newer to older oreo version. If so then try to use HiSuite to downgrade to nougat (for .360 it should be possible when hit firmware update -> switch to other version) and finally do the ota update to oreo. Be aware that I am not absolutely sure it will work, just suppose it should.
lukastob said:
For debrand I used this guide:
https://forum.xda-developers.com/p10/how-to/huawei-p10-debrand-rebrand-update-guide-t3691013
but I was doing it on nougat and I am not sure how it works with downgrading from oreo to nougat.
If you are already on oreo (and C432 region) you could try to use this guide :
https://forum.xda-developers.com/p10/how-to/guide-manual-updgrade-to-update-oreo-t3758286
tutorial 2 to flash the first full-ota oreo 8.0.0.360 from: http://pro-teammt.ru/firmware-database
but here is question to @Jannomag if it's certain that the script will work from newer to older oreo version. If so then try to use HiSuite to downgrade to nougat (for .360 it should be possible when hit firmware update -> switch to other version) and finally do the ota update to oreo. Be aware that I am not absolutely sure it will work, just suppose it should.
Click to expand...
Click to collapse
Downgrading to a lower version as Dec2018 security patches can be indeed a problem but this shouldn't cause a brick. The updated should fail flashing /kernel and /ramdisk from update files.
Jannomag said:
Downgrading to a lower version as Dec2018 security patches can be indeed a problem but this shouldn't cause a brick. The updated should fail flashing /kernel and /ramdisk from update files.
Click to expand...
Click to collapse
I tried to flash B365 oreo over B384 with tutorial 2, update started as usual then reached 100% and phone switched off totaly. Now looks like bricked, can't switch on, charging doesn't work, when connected to pc system shows unrecognized USB SER device. Is there any hope to unbrick it?
I have the same. Send to warranty and they fix this by replace the Motherboard. Now i can't unlock bootloader because no offical codes and DC unlocker not support newest security patch from Huawei. Otherwise Phone works fine and i have extra warranty to 2022 .

EMUI 9.1 update with bootloader unlocked and Magisk Manager

Hello Everyone,
I'm trying to get the EMUI 9.1 update on my P20 Pro (Canadian Version) and the system download the updates and it reboot, and gets back to the previous state 9.0 and it asks to upgrade again.
I tried upgrade using the HiSuite and also gets the same issue.
Do you guys know if with the bootloader unlocked and Magisk Manager installed on my boot partition affect this upgrade ?
Thank you
No

P30 pro vog-l29(c815) Downgrade To 9.0

Hello everybody,
Can i downgrade my P30 pro vog-l29(c815) form Android 10 To Android 9?? Using OTG dongle (recovery mode) , considering that i have the Firmware.
Thanks in advance for your reply.
Later Edit:
I have successfully managed and figured out how to downgrade using Hisuite for PC.
I was on EMUI 10.0.0.90 (this is the last Ota update I have received, in order to get the (switch to earlier version button) I downgraded my EMUI FROM 10.0.0.90 to EMUI 10.0.0.186 USING dload, after that I enabled hdb and installed Hisuite on my mobile and checked firmware update button through it, and boom now I got two buttons, Update to EMUI 10.0.0.90 Again which I don't want to and switch to an earlier version which I did and successfully downgraded to EMUI 9.1.0.244 (android 9).
I wanted to downgrade since EMUI 10 has a bad performance and random ridiculous freezing issues almost in every app with no reasons, now I'm Enjoying my phone once again XD.
Conclusion: If you are on latest firmware update you won't be able to get the switch to an earlier version button on PC Hisuite, Insteadly you will need to downgrade to any previous EMUI 10 versions before you can downgrade to EMUI 9.
Happy downgrading to you all.
You can downgrade through Hisuite don't need any dongle.Just install Huawei hi suite in pc and you can do it from there 100% official
xhoi287 said:
You can downgrade through Hisuite don't need any dongle.Just install Huawei hi suite in pc and you can do it from there 100% official
Click to expand...
Click to collapse
Thank you so much, will give it a try
Its not working i reviewed some toturials and there should be a (switch To other version button) but Its not, what should i do please.
hARNKSH2001 said:
Its not working i reviewed some toturials and there should be a (switch To other version button) but Its not, what should i do please.
Click to expand...
Click to collapse
Hi m8,
You can't downgrade to EMUI 9.1 using dload firmware, you will get yourself a softbricked device. The only way is to use HiSuite PC version. If you can't find the Switch to other version, may i ask you how did you get EMUI 10 on your device? Did you used the firmware from other cust and also used a bypass method, like renaming all zips to update? Or other method?
Later edit: are you sure your cust is C815 and not C185?
Sent from my HUAWEI VOG-L29 using XDA Labs
SilviuO said:
Hi m8,
You can't downgrade to EMUI 9.1 using dload firmware, you will get yourself a softbricked device. The only way is to use HiSuite PC version. If you can't find the Switch to other version, may i ask you how did you get EMUI 10 on your device? Did you used the firmware from other cust and also used a bypass method, like renaming all zips to update? Or other method?
Later edit: are you sure your cust is C815 and not C185?
Sent from my HUAWEI VOG-L29 using XDA Labs
Click to expand...
Click to collapse
Thank you for your reply, yes I'm on C815.
I successfully managed and figured out how to downgrade using Hisuite for PC.
I was on EMUI 10.0.0.90 (this is the last Ota update I have received, in order to get the (switch to earlier version button) I downgraded my EMUI FROM 10.0.0.90 to EMUI 10.0.0.186 USING dload, after that I enabled hdb and installed Hisuite on my mobile and checked firmware update button through it, and boom now I got two buttons, Update to EMUI 10.0.0.90 Again which I don't want to and switch to an earlier version which I did and successfully downgraded to EMUI 9.1.0.244 (android 9).
I wanted to downgrade since EMUI 10 has a bad performance and random ridiculous freezing issues almost in every app with no reasons, now I'm Enjoying my phone once again XD.
Conclusion: If you are on latest firmware update you won't be able to get the switch to an earlier version button on PC Hisuite, Insteadly you will need to downgrade to any previous EMUI 10 versions before you can downgrade to EMUI 9 .
Best Regards,
hARNKSH2001 said:
Thank you for your reply, yes I'm on C815.
I successfully managed and figured out how to downgrade using Hisuite for PC.
I was on EMUI 10.0.0.90 (this is the last Ota update I have received, in order to get the (switch to earlier version button) I downgraded my EMUI FROM 10.0.0.90 to EMUI 10.0.0.186 USING dload, after that I enabled hdb and installed Hisuite on my mobile and checked firmware update button through it, and boom now I got two buttons, Update to EMUI 10.0.0.90 Again which I don't want to and switch to an earlier version which I did and successfully downgraded to EMUI 9.1.0.244 (android 9).
I wanted to downgrade since EMUI 10 has a bad performance and random ridiculous freezing issues almost in every app with no reasons, now I'm Enjoying my phone once again XD.
Conclusion: If you are on latest firmware update you won't be able to get the switch to an earlier version button on PC Hisuite, Insteadly you will need to downgrade to any previous EMUI 10 versions before you can downgrade to EMUI 9 .
Best Regards,
Click to expand...
Click to collapse
Glad you sorted out. That's what i was going to reccomend you when you would confirm me that your cust is C185 or C815 ?. HiSuite is offering the downgrade option but not always from latest, therefore the need to downgrade to a previous version.
Don't forget to disable AUTO updates from Developer Options, otherwise you will be prompted to update to EMUI 10 and guess that it will auto download the firmware and maybe it will install it by itself
Sent from my HUAWEI VOG-L29 using XDA Labs
SilviuO said:
Glad you sorted out. That's what i was going to reccomend you when you would confirm me that your cust is C185 or C815 . HiSuite is offering the downgrade option but not always from latest, therefore the need to downgrade to a previous version.
Don't forget to disable AUTO updates from Developer Options, otherwise you will be prompted to update to EMUI 10 and guess that it will auto download the firmware and maybe it will install it by itself
Sent from my HUAWEI VOG-L29 using XDA Labs
Click to expand...
Click to collapse
Noooo not again XD, thank you will disable it.
can you please steps by steps how to downgrade to 9?
i'm on vog-l29 c636 10.0.0.209
thanks
aznboix said:
can you please steps by steps how to downgrade to 9?
i'm on vog-l29 c636 10.0.0.209
thanks
Click to expand...
Click to collapse
I've replied you on my dload firmware thread. Use dload firmware from my OP, downgrade to v190, then connect your device to HiSuite and check for an update. There it will be the option to return to EMUI 9.1.0.260. Be aware that using dload and HiSuite to downgrade will wipe clean your phone's data ?
Sent from my VOG-L29 using XDA Labs
SilviuO said:
I've replied you on my dload firmware thread. Use dload firmware from my OP, downgrade to v190, then connect your device to HiSuite and check for an update. There it will be the option to return to EMUI 9.1.0.260. Be aware that using dload and HiSuite to downgrade will wipe clean your phone's data ?
Sent from my VOG-L29 using XDA Labs
Click to expand...
Click to collapse
Thanks buddy...it worked
aznboix said:
Thanks buddy...it worked
Click to expand...
Click to collapse
?, glad i could help you, m8
Sent from Huawei P30 Pro
Hello,
I have the same problem How can i donwgrade Huawei P30 pro ? i tried all ,..
Becouse i got this phone by my sister ,but i reset all ,but Google acc. no ...
And my sister dont know this ..
Thank you so much
Hi guys, im trying to downgrade/ rollback to Android 9.
At moment I managed to roll back to android 10. 10.0.0.206 using Hisuite, but the rollback option is not available anymore on the Hisuite for me to rollback more to android 9.
Hope you can help me step by step.
I'm also unable to find and downlaod a firmware android 9 version for my VOG-L29 C185, can you tell me where I can get it?
Thank you
rossrosh007 said:
Hi guys, im trying to downgrade/ rollback to Android 9.
At moment I managed to roll back to android 10. 10.0.0.206 using Hisuite, but the rollback option is not available anymore on the Hisuite for me to rollback more to android 9.
Hope you can help me step by step.
I'm also unable to find and downlaod a firmware android 9 version for my VOG-L29 C185, can you tell me where I can get it?
Thank you
Click to expand...
Click to collapse
take a look at this link:
https://www.pkrom.net/2021/07/vog-l29-c185-downgrade-from-1000-to-910.html.
You need an OTG cable,usb formatted pen drive.
https://forum.xda-developers.com/t/...erent-operating-system.4581497/#post-88512677
You will lose the fast charge.There is also a procedure to restore it with the harmony cable on aliexpress

ZE620KL Asus unlock app not working

Hi there,
i bought new Zenfone 5 with Oreo and updated OTA up to Pie (WW_16.0615.1903.92).
Higher Version was not offered with OTA. Therefore I updated to latest Pie by transfer into phone memory (WW_V16.0615.2005.130) which was succesful.
My intention was to root with latest clean firmware using Magisk-Manager and adb flash.
Unfortunately both Asus unlock apk from their website are not working (message: "unknown network error, please try again later").
Is it not working due to Pie ?
Is it possible or helpful to downgrade to Oreo?
Any idea how to solve it ?

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