How to downgrade from 9.1 to Oreo? - Huawei P10 Questions & Answers

I would like to go back to Oreo.
I found several tutorials online that say to use HiSuite version 9.0.2.301.
These say that the upgrade option in HiSuite should also allow to downgrade or "use the other version".
However, this options are never visible in my version of HiSuite.
Could anyone please share a succesful method for downgrading please?

Related

P9 EVA L09C432B182 upgrade

Hi guys I got a second hand p9 still on emui 4.1.1
I've tried via updater but it says there's no update available, it seems to come unlocked already but then I dont understand why it doesnt find the update. Also tried connecting it via HiSuite but it doesn't work at all, when I try it says that there's no internet connection and that I should check settings.
How do I upgrade it to the latest version? I don't want to unlock it and all that stuff, is there a way?
Thanks in advance
Sent from my EVA-L09 using Tapatalk
Proxy method via Hisuite requires you to use the version that is linked with the guy that posted the 3 L09C432 nougat firmware updates.
You cannot use the latest Hi Suite version to do so.
Download the app "Firmware Finder" from the Google play store. It will allow you to check for later updates and whether they are approved for installation. It will then allow you to push the update to the phone's built-in updater app. If your phone is already on 432 you can do all of this without unlocking the bootloader.
Thanks guys, I managed to update via HiSuite using Huawei updater. I'm on b378 and both phone and HiSuite can't find any further update. Anyway I just wanted Nougat cause I didn't like MM on this device.
Sent from my EVA-L09 using Tapatalk

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

Update EVA-L09C900B182

I have a Huawei P9 that doesn't seem to receive updates.
EMUI 4.1.1
Build: EVA-L09C900B182
Andriod: 6.0
I have tried using firmware finder but I always get checksum failed before it passes 1%.
I had a look through the Forums and it seems that people recommend rebranding though that was in 2017.
I was wondering if there is any easy way to update?
I am a noob so i want to try avoid rooting and rebranding if possible.
Has anyone managed to update this?
2 years later and I'm still trying...
focussss said:
Has anyone managed to update this?
2 years later and I'm still trying...
Click to expand...
Click to collapse
For c900 there is no newer firmware.
Flashing anything else than c900 means rebranding - but rebranding requires unlocking Bootloader (not 'rooting')
So wandering, what are you really trying to do for two years?!
- Unlock Bootloader (4 Euros):
https://www.dc-unlocker.com/
- Rebrand properly to be able to update to Nougat eg EVA-L09c432b504:
https://forum.xda-developers.com/showpost.php?p=72153575&postcount=2
I followed that guide but now my phone is stuck on "Type the password to decrypt storage" when I enter my Google password it says it's correct but data on my phone is corrupted. Any ideas?
focussss said:
I followed that guide but now my phone is stuck on "Type the password to decrypt storage" when I enter my Google password it says it's correct but data on my phone is corrupted. Any ideas?
Click to expand...
Click to collapse
Are you talking about TWRP asking for pass or Android?
If Android, on which firmware are you, what was the last step you performed?
Also, make sure you used TWRP for MM, not for Nougat - since you were on c900 MM when you started with rebranding to c432 (?)
Btw, you unlocked the Bootloader?
Thanks for the quick response and all your assistance. I managed to finally boot into EVA-L09C432B182 and will write what I did in the rebranding post for others who run into this issue. I still have no updates on L09C432B182 though.
focussss said:
Thanks for the quick response and all your assistance. I managed to finally boot into EVA-L09C432B182 and will write what I did in the rebranding post for others who run into this issue. I still have no updates on L09C432B182 though.
Click to expand...
Click to collapse
For OTA you must have a valid SIM card and WiFi - check manually to the System Update to trigger checking for an update
You can also try with HiSuite (PC) - latest versions of HiSuite have an option at the bottom to update the firmware
See:
https://huaweiflash.com/how-to-flash-huawei-stock-firmware-all-methods/
You can also update by DLOAD (read the guide above), you must download FullOTA-MF-PV (must be PV), like b360, from Firmware Finder
There is also HWOTA method, see:
https://forum.xda-developers.com/showpost.php?p=75787156&postcount=3

downgrade from 9.1 to 9

Hi guys
There is any way for downgrade from 9.1 to 9
My phone is mate rs porche design neo-L29
Hello,
You can downgrade the software version via HiSuite. Connect the phone to your PC with HiSuite, hit the update button and after the pop-up windows appears with "software is up to date" down below you'll find a clickable text "Switch to older version".
Wrong forum pal.
You need to be careful downgrading

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

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