how do i downgrade my rom? - Huawei Mate 10 Questions & Answers

I am not rooted and I don't want to root but I need to downgrade my Mate 10 ALP L29 8.0.0.139 (C636) to 138 ROM or lower.
Is this possible and if so how please? Remember I do not want to root please.
Thank you.

tboy2000 said:
I am not rooted and I don't want to root but I need to downgrade my Mate 10 ALP L29 8.0.0.139 (C636) to 138 ROM or lower.
Is this possible and if so how please? Remember I do not want to root please.
Thank you.
Click to expand...
Click to collapse
You can't.

Why you want do that is there are any issues

Yes my speaker volume at max (15) is very quiet and tinny. It never used to be like this. I compared the same YouTube video playing on my friend's Mate 10 who is on 138 ROM and his sound at max was much louder and clearer. So either my speakers are faulty or the rom 139 broke the sound. I wanted to roll back to see if 138 fixes the volume.

tboy2000 said:
Yes my speaker volume at max (15) is very quiet and tinny. It never used to be like this. I compared the same YouTube video playing on my friend's Mate 10 who is on 138 ROM and his sound at max was much louder and clearer. So either my speakers are faulty or tomorrow 139 broke the sound. I wanted to roll back to see if 138 fixes the volume.
Click to expand...
Click to collapse
B139 has 02 xloader, B138 has 01 xloader. So it will refuse to downgrade.
If you are unlocked and try using HWOTA/TWRP your phone will hard brick.

I think you may have a try.
As we know, Huawei released an utility for Windows, HiSuite. With its help, you can downgrade your firmware which has not been rooted to some versions of official rom.
You can find and download it from Huawei's official website. Good luck to you.

Related

[Guide] How to Downgrade M9 Pro Oreo Beta to Official Nougat

In XDA-Developers every code builders finding solutions for Mate 9 but there is nothing for Mate 9 Pro (LON) versions.
I am opening this thread if someone give a hand to resolve downgrading problem Oreo Beta to Offical Nougat.
In Mate 9 forum @mankindtw build HWOTA 8 solution for MHA versions. Probably people will suggest me to use FunkyHuawei thing. But PayPal and BitCoin payment methods are not working in my country because of acredition at banking system.
So if any developer can support M9 Pro, it's too much appriciated for me.
livevalue said:
In XDA-Developers every code builders finding solutions for Mate 9 but there is nothing for Mate 9 Pro (LON) versions.
I am opening this thread if someone give a hand to resolve downgrading problem Oreo Beta to Offical Nougat.
In Mate 9 forum @mankindtw build HWOTA 8 solution for MHA versions. Probably people will suggest me to use FunkyHuawei thing. But PayPal and BitCoin payment methods are not working in my country because of acredition at banking system.
So if any developer can support M9 Pro, it's too much appriciated for me.
Click to expand...
Click to collapse
It's possible while you are in stock recover via Firmware Finder. Just you need to find which stock ROM works for your device. None of Rollback Roms worked with me.
Yep! I'm also waiting for this! Hope a solution comes soon
polaco95 said:
Yep! I'm also waiting for this! Hope a solution comes soon
Click to expand...
Click to collapse
Probably @mankindtw preparing a solution. He made the old HWOTA system and nowadays keeps silence. It's my guess, waiting for the official ROM release date.
@duraaraa I have a spesific problem. I'm using Huawei Mate 9 Pro. Bootloader unlocked, Oeminfo file belongs to orginal LON-AL00C00B225 but system running under Oreo 8.0.0.323 C636 log. It is sometimes running and sometimes don't.
I tried to downgrade Oreo to Nougat but it wasn't possible by Firmware Finder (special thanks to @gmanrainy for kind interest) or @mankindtw 's solutions. Probably file structure is different on Oreo, that could be reason for not downgrading.
Anyway, I know you are also moderating FunkyHuawei webpage. Is it possible for my situation to rebrand C636 and install LON-L29C636B235 version? Your payment methods not working in my country so I'l figure it out somehow. But I clearly wanted to learn if it is really work for me.
livevalue said:
@duraaraa I have a spesific problem. I'm using Huawei Mate 9 Pro. Bootloader unlocked, Oeminfo file belongs to orginal LON-AL00C00B225 but system running under Oreo 8.0.0.323 C636 log. It is sometimes running and sometimes don't.
I tried to downgrade Oreo to Nougat but it wasn't possible by Firmware Finder (special thanks to @gmanrainy for kind interest) or @mankindtw 's solutions. Probably file structure is different on Oreo, that could be reason for not downgrading.
Anyway, I know you are also moderating FunkyHuawei webpage. Is it possible for my situation to rebrand C636 and install LON-L29C636B235 version? Your payment methods not working in my country so I'l figure it out somehow. But I clearly wanted to learn if it is really work for me.
Click to expand...
Click to collapse
Yes, it's possible. But I would need to look into which package you need to install. You'd probably need to use FHRebrandTool to fix the branding correctly.
duraaraa said:
Yes, it's possible. But I would need to look into which package you need to install. You'd probably need to use FHRebrandTool to fix the branding correctly.
Click to expand...
Click to collapse
It's not problem to use it. I already downloaded tools but looking forward for your answer. Thank you.
I successfully rebranded my phone to LON-L29C636 via your stock OEMINFO file. Now phone is in bootloop.
I am really wondering that is FunkyHuawei able to install B235 Nougat firmware. I'll share all details who are looking solution to downgrade Oreo to Nougat.
livevalue said:
I successfully rebranded my phone to LON-L29C636 via your stock OEMINFO file. Now phone is in bootloop.
I am really wondering that is FunkyHuawei able to install B235 Nougat firmware. I'll share all details who are looking solution to downgrade Oreo to Nougat.
Click to expand...
Click to collapse
You'd need to flash the Oreo firmware with FHUnbrickTool if it's not booting. Or you can re-unlock the bootloader. Probably issue is you used the tool with unlocked bootloader and a modified partition somewhere, I'm guessing.
You might also be able to use eRecovery method with Android O firmware. Downgrading to N will need to be done AFTER you have it booting in Android O.
I can't monitor this thread well, so you should email FH support if you need help.
EDIT: I apologize. I thought you were using FH tools. Apparently not. Yes, FH can fix your phone, to answer your question from before. There is no other solution for M9Pro right now.
duraaraa said:
You'd need to flash the Oreo firmware with FHUnbrickTool if it's not booting. Or you can re-unlock the bootloader. Probably issue is you used the tool with unlocked bootloader and a modified partition somewhere, I'm guessing.
You might also be able to use eRecovery method with Android O firmware. Downgrading to N will need to be done AFTER you have it booting in Android O.
I can't monitor this thread well, so you should email FH support if you need help.
EDIT: I apologize. I thought you were using FH tools. Apparently not. Yes, FH can fix your phone, to answer your question from before. There is no other solution for M9Pro right now.
Click to expand...
Click to collapse
I wrote an email on 23th but there is no answer from FHteam. Anyway my phone now is totally bricked. Opening in error mode. Error no 13 with no image. As you know I tried to downgrade from Oreo to Nougat.
Can we fix it and install the original Chinese edition on my phone? No problem if it would be Oreo or Nougat.
I'm going to try to buy credits from a different way, because PayPal is not working in my area.
livevalue said:
I wrote an email on 23th but there is no answer from FHteam. Anyway my phone now is totally bricked. Opening in error mode. Error no 13 with no image. As you know I tried to downgrade from Oreo to Nougat.
Can we fix it and install the original Chinese edition on my phone? No problem if it would be Oreo or Nougat.
I'm going to try to buy credits from a different way, because PayPal is not working in my area.
Click to expand...
Click to collapse
Please email again and mention that you are livevalue on xda.
duraaraa said:
Please email again and mention that you are livevalue on xda.
Click to expand...
Click to collapse
I sent again and mentioned again that I'm livevalue at xda.
Anyway thank you for your support.
@duraaraa I want to thank FunkyHuawei team for responding very fast this time. We were online together.
I think my device hard bricked and I'll try everything to access fastboot mode. I always have bootloop and error mode continously. Key combinations don't work. Only power key, but it doesn't shuts down the phone, it always restarts. I was really expecting a downgrade solution from @mankindtw like he did for Mate 9 before. But he didn't and now device is hard bricked. Before an Oreo installation they need to warn people about there is no return.
No problem. I believe we will save my M9 Pro together. Thank you in advance and I'll stay in touch.
livevalue said:
@duraaraa I want to thank FunkyHuawei team for responding very fast this time. We were online together.
I think my device hard bricked and I'll try everything to access fastboot mode. I always have bootloop and error mode continously. Key combinations don't work. Only power key, but it doesn't shuts down the phone, it always restarts. I was really expecting a downgrade solution from @mankindtw like he did for Mate 9 before. But he didn't and now device is hard bricked. Before an Oreo installation they need to warn people about there is no return.
No problem. I believe we will save my M9 Pro together. Thank you in advance and I'll stay in touch.
Click to expand...
Click to collapse
if your phone can be detected by pc, it can be recovered don't lose hope
mutahharbashir said:
if your phone can be detected by pc, it can be recovered don't lose hope
Click to expand...
Click to collapse
I had neccesary testpoint and get board firmware. There is no problem anymore but anyway thank you in advance brother.
I used Firmware Finder and it did the job. I downgraded from LON-L29C432B368 to LON-L29C432B229. You need to select FullOTA-MF-PV version.

OTA update to Android 8 ?

Did anyone in Europe with Mate 10 Lite got an OTA update to android 8 ?
I can find update with FF but flashing does not work.
Today it happens [emoji57]
nothing here
rne-L21C432B137
Try the HWOTA tool, it's how I got mine from EMUI 5 to EMUI 8 with Oreo.
dabateau said:
Try the HWOTA tool, it's how I got mine from EMUI 5 to EMUI 8 with Oreo.
Click to expand...
Click to collapse
Improvement over EMUI 5 ?
Bugs ?
Mass13 said:
nothing here
rne-L21C432B137
Click to expand...
Click to collapse
Also still waiting :crying:
Mass13 said:
Improvement over EMUI 5 ?
Bugs ?
Click to expand...
Click to collapse
Emio 8 pros and cons
Pros
,latest security patch
,latest android version
,fast and efficient
,latest camera features
cons
,had a preloaded stupid games but its uninstallable
,battery drain but its fixed
,the ram management is a miss and match
Finally Three days ago the update came to me. No bugs so far. Very fast and fluent.
Hi. I've updated to 8.0.0.302 using HWOTA tool. Now the system update downloaded the newest version 8.0.0.310 but I can't complete the installation process.
It keeps giving me an error.
Any idea how can I fix this?
Someone from baltics hawe oreo ota ?
Mate 10 lite
Rne-l21c432b137 rom now.
Didn't get any updates to oreo either.
Does anyone know if it will come at all?
Huawei puts out updates for Europe last every time. :S

SKW-H0,A0 firmwares

* inc = increment file / factroy = factory ota files
SKW-H0
1. OS00
ANDROID 9 mp3 mp3 update mp4 mp5 mp6
ANDROID 10 mq0 mq1 mq2 mq3 mq4
2. OS01
ANDROID 9 mp3 mp4 mp5 mp6
ANDROID 10 mq0 mq1
SKW-A0
- CN00
ANDROID 9 mp7
ANDROID 10 mq2 mq2(200512) mq3(200716)
Can i use this to change from cn rom to global rom?
RAIIN90 said:
Can i use this to change from cn rom to global rom?
Click to expand...
Click to collapse
https://forum.xda-developers.com/black-shark-2/how-to/guide-install-china-global-rom-black-t4097173
Click to expand...
Click to collapse
your answer maybe over here。
my black shark2 OSOO was on andiroid 9 pie mp5
updated it to mp6 with your files then downloaded the android 10!! and works 100% really thanksss !!
ROG↓BS↑ said:
your answer maybe over here。
Click to expand...
Click to collapse
Thanks mate. Now my rom version is SKYW2007160CN00MQ3, can i just pick random global rom and update it? Or i need to downgrade the cn rom first befor i update the global rom?
Do you have black shark 2 pro Firmware?
TQ
Hey, I'm on S00MP5 and my understanding is that MP6 is the last Android 9 update for Black Shark 2 but I can't update through OTA so I downloaded the Zip, put it into OTA folder and rename into update.zip, now I can dial *#*#1027#*#* and force update, right? My question is if this will take me into stock recovery because it's Chinese and I can't read it, wouldn't know what to click. Also anyone have update notes for MP6?
i have updated from mp6 to ANDROID 10 mq0 but the device is locked now.
it says the device is associated with a mi account and needs password? anyone please help
H0 OS00-mq2 updated.(07-11-2020)
hi everyone, question
How can i completely format my black shark 2 to reinstall only the latest firmware and only this pliz ? I'm talking about the SKYW20092500S01MQ2 firmware.
I have an SKW-H0
Because my black shark 2 complete bug since the transition to Miui (joyui 11)
thank you in advance
Neotracx said:
hi everyone, question
How can i completely format my black shark 2 to reinstall only the latest firmware and only this pliz ? I'm talking about the SKYW20092500S01MQ2 firmware.
I have an SKW-H0
Because my black shark 2 complete bug since the transition to Miui (joyui 11)
thank you in advance
Click to expand...
Click to collapse
Just backup your data and do factory reset, everything will be fine after that.
tw1st3d83 said:
Just backup your data and do factory reset, everything will be fine after that.
Click to expand...
Click to collapse
Ok thank you for your answer, i will try this,
hoping that it will not give me the old android 9 version which it had before the roms taken over by xiaomi ^^
I don't understand the language of the site the links send me to, can Anyone explain exactly for which versions are they for?
Because I do have global version, but is the Japanese one and no OTA updates are available since MQ1.
My version is SKYW2006230OS00MQ1.
Updating chinese version in eu is pain in the a$$! 4 hours passed and download is not complete yet! can someone please upload this zip files to other hosting, i dont have download quota on mega, 4gb already gone.
mimis13 said:
I don't understand the language of the site the links send me to, can Anyone explain exactly for which versions are they for?
Because I do have global version, but is the Japanese one and no OTA updates are available since MQ1.
My version is SKYW2006230OS00MQ1.
Click to expand...
Click to collapse
I'm pretty sure you can download the OS00 version
irvanray7 said:
I'm pretty sure you can download the OS00 version
Click to expand...
Click to collapse
Just dit it. Thanks. I was afraid it might damage the phone if something was wrong with the files, but it's ok.
Hello all
no matter which update method I use, I can't install Android 10, I tried various files from this thread but the effect is always like in the attached photo,
I do not mean android10, but that slowmo video recording does not work with the current version of the system,
Hopefully after the update to 10 it will start working as it should
quattro4ever said:
Hello all
no matter which update method I use, I can't install Android 10, I tried various files from this thread but the effect is always like in the attached photo,
I do not mean android10, but that slowmo video recording does not work with the current version of the system,
Hopefully after the update to 10 it will start working as it should
Click to expand...
Click to collapse
looking at your current version I believe you need to work up the update from MP3 and up
I was updated my BS2 in joyui11 then i downgraded to android 9,then I updated again in joyui 11 mq2 but now the in display fingerprint is not working and also can't set up password,can anyone help me out from this problem?
Note: all the update I did in manually.

EVR-AL00 Loading Inernational EMUI 10.1 ROM?

Hi All,
I have the 8gb/256GB EVR-AL00 which I bought to replace my L29..
There are several key things I do not like about the Chinese ROM, which were not an issue on my international L29. (Google voice wake, setting camera MP, Np bloatware, etc).
As such, would it be possible to load the INTERNATIONAL 10.1 ROM on the EVR-AL00? If so, does it require an unlocked bootloader (Huawei doesn't hand out unlock codes last time I checked). Just to be clear I have no problem unlocking the bootloader, rooting, etc but I do not think this is even possible at this time.
Any help and guidance will be much appreciated. Let's make this happen. "Aut inveniam viam aut faciam"
Thank you
Not possible and don't think it ever will be. Pretty sure all devs abandoned this device some time ago. And with Huawei changing to EROFS either with public release of 9.1 or 10 there is absolutely no way to root even with a bootloader unlock code.
ben63vw said:
Not possible and don't think it ever will be. Pretty sure all devs abandoned this device some time ago. And with Huawei changing to EROFS either with public release of 9.1 or 10 there is absolutely no way to root even with a bootloader unlock code.
Click to expand...
Click to collapse
Thank you for the input. Much appreciated. I also like your avatar
that's why I stayed on rooted 9
Wysłane z mojego EVR-AL00 przy użyciu Tapatalka
shassouneh said:
Hi All,
I have the 8gb/256GB EVR-AL00 which I bought to replace my L29..
There are several key things I do not like about the Chinese ROM, which were not an issue on my international L29. (Google voice wake, setting camera MP, Np bloatware, etc).
As such, would it be possible to load the INTERNATIONAL 10.1 ROM on the EVR-AL00? If so, does it require an unlocked bootloader (Huawei doesn't hand out unlock codes last time I checked). Just to be clear I have no problem unlocking the bootloader, rooting, etc but I do not think this is even possible at this time.
Any help and guidance will be much appreciated. Let's make this happen. "Aut inveniam viam aut faciam"
Thank you
Click to expand...
Click to collapse
Just check out Ministry of Solutions... Complete conversion of EVR Al00 to international version with official OTA updates too!
basdaniel said:
Just check out Ministry of Solutions... Complete conversion of EVR Al00 to international version with official OTA updates too!
Click to expand...
Click to collapse
Thanks for the suggestion. It seems too good to be true. An Indian sounding name and they're asking for $40 and TeamViewer (to take over my machine) for a job I can do on my own. Seems way too fishy and scammy.
Can anyone vouch for MinistryOfSolutions?
Thanks
shassouneh said:
Thanks for the suggestion. It seems too good to be true. An Indian sounding name and they're asking for $40 and TeamViewer (to take over my machine) for a job I can do on my own. Seems way too fishy and scammy.
Can anyone vouch for MinistryOfSolutions?
Thanks
Click to expand...
Click to collapse
once referred for bootloader code
https://forum.xda-developers.com/hu...uy-boot-loader-unlock-codes-june-7th-t3937482
shassouneh said:
Thanks for the suggestion. It seems too good to be true. An Indian sounding name and they're asking for $40 and TeamViewer (to take over my machine) for a job I can do on my own. Seems way too fishy and scammy.
Can anyone vouch for MinistryOfSolutions?
Thanks
Click to expand...
Click to collapse
Would like to rebrand my phone today by him. Will give feedback when its done.
JRapsky said:
Would like to rebrand my phone today by him. Will give feedback when its done.
Click to expand...
Click to collapse
I'm super interested in hearing how it goes cause I've been debating about doing this for a month or so. If you could also say if you have to wipe the whole phone and what version you were running before it went through this process.
Rebrand is done today. My chinese EVR-AN00 has now the global EVR-N29 ROM. Everything seems to work so far.
Before rebrand, I downgraded to EMUI 9.1, but maybe this is not needed for the process.
My global ROM is EMUI 9.1 1 - for the moment no OTA update possible. We will try to solf this tomorrow.
My experience, MinistryOfSolution is a trustworthy and reliable business man.
JRapsky said:
Rebrand is done today. My chinese EVR-AN00 has now the global EVR-N29 ROM. Everything seems to work so far.
Before rebrand, I downgraded to EMUI 9.1, but maybe this is not needed for the process.
My global ROM is EMUI 9.1 1 - for the moment no OTA update possible. We will try to solf this tomorrow.
My experience, MinistryOfSolution is a trustworthy and reliable business man.
Click to expand...
Click to collapse
Any before and after screenshot of settings page
I can 100% vouche for Ministry of Solutions! I just had him convert my AL00 to an L29. It is also a permanent fix. I have done all the latest OTA update including the latest for November with no issues.
Hey guys, I just had a session with Ministry of Solutions and for about 40 minutes my phone was fully converted from AL00 to L29.
I'm currently getting the OTAs...
Very happy with the service!
Just one note. To make the process faster and easier for him, make sure to downgrade to EMUI 9.0 with Hisuite (it is quite easy. Just make sure to backup your data).
OrionBG said:
Hey guys, I just had a session with Ministry of Solutions and for about 40 minutes my phone was fully converted from AL00 to L29.
I'm currently getting the OTAs...
Very happy with the service!
Just one note. To make the process faster and easier for him, make sure to downgrade to EMUI 9.0 with Hisuite (it is quite easy. Just make sure to backup your data).
Click to expand...
Click to collapse
How I come contact to Ministry of Solutions to help me and change my phone. I come from Germany and my English is not so good. Maybe some one can help me to transform my phone to L29
Tried to upgrade my L29 using the roms provided and I get the “software install failed” error message. Tried diff roms and same message. Any help on how to address the issue i am stuck on emui 9
Moiseslz said:
Tried to upgrade my L29 using the roms provided and I get the “software install failed” error message. Tried diff roms and same message. Any help on how to address the issue i am stuck on emui 9
Click to expand...
Click to collapse
With Hisuite?
danny32 said:
How I come contact to Ministry of Solutions to help me and change my phone. I come from Germany and my English is not so good. Maybe some one can help me to transform my phone to L29
Click to expand...
Click to collapse
Same for me,Ministry of Solutions converted my AL00 to L29,all works fine and received Emui 12.

V30+ Thin Q

I got this phone New it came with 8.0 Oreo it has never had one update and it is said on Let's site that it should of had its ten by now?
ZeroCooL_39 said:
I got this phone New it came with 8.0 Oreo it has never had one update and it is said on Let's site that it should of had its ten by now?
Click to expand...
Click to collapse
The latest update you can get is Android 9
If you are not able to recieve OTA updates, you may need to flash KDZ of Android 9.
tech_infinity said:
The latest update you can get is Android 9
If you are not able to recieve OTA updates, you may need to flash KDZ of Android 9.
Click to expand...
Click to collapse
Thank you tech_infinity i was so lost by this, especially being that at one time this was considered one LG's flagship phones, lol, well im trying to figure out the best way to root it,and what root to use , because it is really nice and i love it , it does strike me a lot at factory set up to be like the galaxy s10 or 9 note in some ways but in really want the thin Q 50 or 60 Q im very interested in , are they quality as well like this when this came out ? or ....
To root the phone, we recommend using the WTF thread and the instructions detailed here: https://forum.xda-developers.com/t/...ar-instructions.3790500/page-10#post-76584629
Be sure to view this post on a computer (not on the phone app, because it cuts off the message).

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