Database Info

Downgrade firmware to unlock bootloader to root

Hi all,
I got my new Huawei Honor V10 Saturday and it's an excellent phone! The phone updated itself to the latest firmware as soon as it connected to WiFi.
So now I have BKL - L09 8.0.0. 163(C636)
This is an important question that might help all new V10 people....
Would it be possible to use funky Huawei to downgrade the firmware to before the July patch /update and then use DC unlocker or HCU client to unlock the bootloader??
What's your thoughts on this?
Thanks for your help
D.

Do you have a code?
If you have a code.. You don't have to downgrade
If you don't have a code.... Sorry about your bad luck

br54 said:
Do you have a code?
If you have a code.. You don't have to downgrade
If you don't have a code.... Sorry about your bad luck
Click to expand...
Click to collapse
He does not have one.
We were thinking, as DC/HCU used to work with Honor V10 (though on their site it only lists AL models, but I have seen someone use it to remove FRP lock), downgrading might be a solution. Sadly there are no dload packages for C636, but they exist for both C432 and C00 on androidhost.ru.
The thing is, if someone has already tried this and it failed OP wouldn't have to waste $45$.
So if someone on C432 who doesn't have an unlock code they could test downgrading to a May patch firmware or earlier.
I can provide instructions if you want to test.
This works fine on Mate 10/Pro as long as you haven't updated to a 02 xloader, then downgrading won't work as recovery will check xloader to prevent the brick that occurs when you flash a 01 xloader firmware on one with 02

I have a c675 on b161...I have a unlock code.. But am unwilling to root the finiky honor..
While I could.. It's not as easy or simple as my old Samsung.. Plus a lot of the features break upon flashing of other ROMs
While I would debloat tweak..I think the phone is fine as it is
Good luck...
ante0 said:
He does not have one.
We were thinking, as DC/HCU used to work with Honor V10 (though on their site it only lists AL models, but I have seen someone use it to remove FRP lock), downgrading might be a solution. Sadly there are no dload packages for C636, but they exist for both C432 and C00 on androidhost.ru.
The thing is, if someone has already tried this and it failed OP wouldn't have to waste $45$.
So if someone on C432 who doesn't have an unlock code they could test downgrading to a May patch firmware or earlier.
I can provide instructions if you want to test.
This works fine on Mate 10/Pro as long as you haven't updated to a 02 xloader, then downgrading won't work as recovery will check xloader to prevent the brick that occurs when you flash a 01 xloader firmware on one with 02
Click to expand...
Click to collapse

br54 said:
I have a c675 on b161...I have a unlock code.. But am unwilling to root the finiky honor..
While I could.. It's not as easy or simple as my old Samsung.. Plus a lot of the features break upon flashing of other ROMs
While I would debloat tweak..I think the phone is fine as it is
Good luck...
Click to expand...
Click to collapse
OP doesn't have an unlock code. OP is asking if it would be possible to downgrade using FunkyHuawei to an earlier fw, and then to use DC/HCU to get unlock code.
Same way can be done on Mate 10/Pro, I downgraded (Though through DLOAD) from C432B148-SP1 to B142 and DC was working fine. On C432B145+ (June+) it is not working at all.
But I cant find any real proof that DC/HCU was working for global Honor View 10 prior to June firmware.
And as for debloating, there's not much bloat to begin with (thankfully). And preinstalled apps, including some of Huaweis own, can be uninstalled/disabled.
I couldn't live without root But I guess I like tinkering with my phone more than actually using it as a phone, lol

Good luck

ante0 said:
I couldn't live without root But I guess I like tinkering with my phone more than actually using it as a phone, lol
Click to expand...
Click to collapse
I am the exact same here and that's why I want to root this beast lol lol!

Downgrade Honor 9 stf-l09 from 8.0.0.378(c432)
ante0 said:
He does not have one.
We were thinking, as DC/HCU used to work with Honor V10 (though on their site it only lists AL models, but I have seen someone use it to remove FRP lock), downgrading might be a solution. Sadly there are no dload packages for C636, but they exist for both C432 and C00 on androidhost.ru.
The thing is, if someone has already tried this and it failed OP wouldn't have to waste $45$.
So if someone on C432 who doesn't have an unlock code they could test downgrading to a May patch firmware or earlier.
I can provide instructions if you want to test.
This works fine on Mate 10/Pro as long as you haven't updated to a 02 xloader, then downgrading won't work as recovery will check xloader to prevent the brick that occurs when you flash a 01 xloader firmware on one with 02
Click to expand...
Click to collapse
Hi,
I have Honor 9 STF-L09 that was previously unlocked officially but when I upgraded to 8.0.0.378(c432) bootloader get locked and now I am unable to unlock it with dc unlocker it get error 375. Can you provide me with instructions how to downgrade it. Thanks

romanp_ua said:
Hi,
I have Honor 9 STF-L09 that was previously unlocked officially but when I upgraded to 8.0.0.378(c432) bootloader get locked and now I am unable to unlock it with dc unlocker it get error 375. Can you provide me with instructions how to downgrade it. Thanks
Click to expand...
Click to collapse
You would have to use service firmware from androidhost.ru. I would downgrade to the version which is GPU Turbo. That one might work with DC.
You get instructions with the firmware, but basically just you unzip the file, copy the 'dload' folder from 'Software' to microsd and start dload mode (Vol up + down + power).

ante0 said:
You would have to use service firmware from androidhost.ru. I would downgrade to the version which is GPU Turbo. That one might work with DC.
You get instructions with the firmware, but basically just you unzip the file, copy the 'dload' folder from 'Software' to microsd and start dload mode (Vol up + down + power).
Click to expand...
Click to collapse
HI,
Thanks for quick reply. I will try your method later on but I would like to say that
I did try to downgrade to STF-L09_C432B130 from 4pda.ru/forum via SD card method in *#*#2846579#*#* but it failed at 5%
Any Idea what could be wrong? Also can you tell me how do I know that firmware is GPU Turbo? Thanks

romanp_ua said:
HI,
Thanks for quick reply. I will try your method later on but I would like to say that
I did try to downgrade to STF-L09_C432B130 from 4pda.ru/forum via SD card method in *#*#2846579#*#* but it failed at 5%
Any Idea what could be wrong? Also can you tell me how do I know that firmware is GPU Turbo? Thanks
Click to expand...
Click to collapse
B376 is the build that added GPUTurbo so you should be able to downgrade to that.
They added a new bootloader in that so you can't downgrade past it.
(You can technically but your device will hardbrick and you need to flash with TWRP or NoCheck recovery).
It may be possible because huawei started preventing downgrades in Pie, and I'm not sure if they've done so in later builds of Oreo too...

ante0 said:
He does not have one.
We were thinking, as DC/HCU used to work with Honor V10 (though on their site it only lists AL models, but I have seen someone use it to remove FRP lock), downgrading might be a solution. Sadly there are no dload packages for C636, but they exist for both C432 and C00 on androidhost.ru.
The thing is, if someone has already tried this and it failed OP wouldn't have to waste $45$.
So if someone on C432 who doesn't have an unlock code they could test downgrading to a May patch firmware or earlier.
I can provide instructions if you want to test.
This works fine on Mate 10/Pro as long as you haven't updated to a 02 xloader, then downgrading won't work as recovery will check xloader to prevent the brick that occurs when you flash a 01 xloader firmware on one with 02
Click to expand...
Click to collapse
I have. A question It's possible to unpack update.app with xloader2.Img replace for xloader1.img from update before July pacht and repack and this shloud work? Or not I'm so noob I'm. Sorry for the question anybody tried?

ante0 said:
B376 is the build that added GPUTurbo so you should be able to downgrade to that.
They added a new bootloader in that so you can't downgrade past it.
(You can technically but your device will hardbrick and you need to flash with TWRP or NoCheck recovery).
It may be possible because huawei started preventing downgrades in Pie, and I'm not sure if they've done so in later builds of Oreo too...
Click to expand...
Click to collapse
Yes, thanks I did managed to downgrade to 376 and tried to use dc again with same error 375. I did notice that my phone is not in device manager modem section as required by DC May this be a reason? Also what is downgrading in Pie ?

romanp_ua said:
Yes, thanks I did managed to downgrade to 376 and tried to use dc again with same error 375. I did notice that my phone is not in device manager modem section as required by DC May this be a reason? Also what is downgrading in Pie ?
Click to expand...
Click to collapse
Downgrade to a previous build. Like B197 to B179. Can't be done in Pie.
You could try with the Handset ProductLine drivers found in DCs download section, but if it can read phone it means it should work if it's not patched in B376. So chances are they added it in B376, and you can't downgrade past it.
You didn't save unlock code last time you got it?

ante0 said:
He does not have one.
We were thinking, as DC/HCU used to work with Honor V10 (though on their site it only lists AL models, but I have seen someone use it to remove FRP lock), downgrading might be a solution. Sadly there are no dload packages for C636, but they exist for both C432 and C00 on androidhost.ru.
The thing is, if someone has already tried this and it failed OP wouldn't have to waste $45$.
So if someone on C432 who doesn't have an unlock code they could test downgrading to a May patch firmware or earlier.
I can provide instructions if you want to test.
This works fine on Mate 10/Pro as long as you haven't updated to a 02 xloader, then downgrading won't work as recovery will check xloader to prevent the brick that occurs when you flash a 01 xloader firmware on one with 02
Click to expand...
Click to collapse
You're the master!

ante0 said:
Downgrade to a previous build. Like B197 to B179. Can't be done in Pie.
You could try with the Handset ProductLine drivers found in DCs download section, but if it can read phone it means it should work if it's not patched in B376. So chances are they added it in B376, and you can't downgrade past it.
You didn't save unlock code last time you got it?
Click to expand...
Click to collapse
Unfortunately I could not find the code I was given before.
DC does not identify my phone by name and model it is just saying Found Applications port
Also in DC app on my phone there is no option for code by IMEI ???
I could not find a specific drivers for my phone in download section of Dc site. There is two files for Huawei Android phone drivers but I do not know how to instal them.

Aggressive update for unlocked phones

For all of you who hoped for more unlockbootloader codes, i just read that huawei is pushing an aggressive update to all p9 phones(atm) to detect unlocked ones and causes problems to them, forcing you to lock.

Where did you read this? Do you have a link that provides more details?

Garkan said:
For all of you who hoped for more unlockbootloader codes, i just read that huawei is pushing an aggressive update to all p9 phones(atm) to detect unlocked ones and causes problems to them, forcing you to lock.
Click to expand...
Click to collapse
it is more reliable to provide a linkage
---------- Post added at 10:08 AM ---------- Previous post was at 09:50 AM ----------
Garkan said:
For all of you who hoped for more unlockbootloader codes, i just read that huawei is pushing an aggressive update to all p9 phones(atm) to detect unlocked ones and causes problems to them, forcing you to lock.
Click to expand...
Click to collapse
one more thing , why do you send post on honor 10 community while you are asking about P9/

https://www.irishtech.ie/huawei-community-unlock-dismember/
I was informing you as i have my own honor 10. It was a thread under this with a petition to provide again bootloader codes, and its fun to even consider that atm )

Garkan said:
https://www.irishtech.ie/huawei-community-unlock-dismember/
Well, while I agree to much of the criticism of Huawei, it is far from proved that the "patch" OTA update mentioned in the thread https://forum.xda-developers.com/showpost.php?p=77418253&postcount=6557 linked from your article intentionally prevents Magisk installation. IMHO you can't simply use the old modified ramdisk (containing Magisk code) along with the system that was modified by the firmware update, see
https://forum.xda-developers.com/showpost.php?p=77424635&postcount=462
Actually, why all this hassle with the patched Magisk ramdisk anyway? I simply flashed Magisk through TWRP on my Honor 10, and this works perfectly with the latest Honor 10 firmware 8.1.0.145(C432) and Magisk beta version (16.7). I won't work with the latest stable Magisk since (if I understand correctly) this one lacks Treble support.
Click to expand...
Click to collapse

It was just a heads up for all of you. Today i give the phone away.

[Q] unlock bootloader

is theres any way to unlock the bootloader for L29 latest firmware ?

lawong said:
is theres any way to unlock the bootloader for L29 latest firmware ?
Click to expand...
Click to collapse
There is a possible workaround which I did last week.
First, I had upgraded version of Android 8.0 (MHA-L29 8.0.0.375(C567)(Stock Official) and possible to obtain the bootloader code when I start this process.
Here is what I did.
1. Downgrade to Android 7.0(EMUI 5.0) by using Huawei's HiSuite software
Click "Update" and select earlier version.
Current : MHA-L29 8.0.0.375(C567)(Official)
Earlier : MHA-L29C567B190(Official) | 2.45GB | Android 7.0(EMUI 5.0)
2. Using 3rd Party tool/service(about $5), I was able to get the bootloader code
In my case, I used DC-Unlocker tool(FREE) and purchasing 4 credits($4.71).
With the bootloader code, you can move to the next steps(root, custom ROMs, etc...)
Hope it helps!

pointdooly said:
There is a possible workaround which I did last week.
First, I had upgraded version of Android 8.0 (MHA-L29 8.0.0.375(C567)(Stock Official) and possible to obtain the bootloader code when I start this process.
Here is what I did.
1. Downgrade to Android 7.0(EMUI 5.0) by using Huawei's HiSuite software
Click "Update" and select earlier version.
Current : MHA-L29 8.0.0.375(C567)(Official)
Earlier : MHA-L29C567B190(Official) | 2.45GB | Android 7.0(EMUI 5.0)
2. Using 3rd Party tool/service(about $5), I was able to get the bootloader code
In my case, I used DC-Unlocker tool(FREE) and purchasing 4 credits($4.71).
With the bootloader code, you can move to the next steps(root, custom ROMs, etc...)
Hope it helps!
Click to expand...
Click to collapse
Im on .378(c363) sir , i have read that it cant be downgraded .

lawong said:
Im on .378(c363) sir , i have read that it cant be downgraded .
Click to expand...
Click to collapse
In fact, I was not sure mine(from Android 8.0 to Android 7.0(EMUI 5.0)) could also downgrade, too.
(Yes, I did not expect to work to be honest with you.)
It would be good to try since it does not cost anything except your time (back up data and actual trying).
Again, I started from MHA-L29 8.0.0.375(C567)(Official Stock) to MHA-L29C567B190(Official) | Android 7.0(EMUI 5.0)
Hope it works for you, too.

pointdooly said:
It would be good to try since it does not cost anything except your time
Click to expand...
Click to collapse
Umm...did you read https://forum.xda-developers.com/mate-9/how-to/psa-dont-downgrade-firmware-versions-t3864940 yet?

Licaon_Kter said:
Umm...did you read https://forum.xda-developers.com/mate-9/how-to/psa-dont-downgrade-firmware-versions-t3864940 yet?
Click to expand...
Click to collapse
Yes, I saw this before I try - Well I took the risk.
I can only assume that my phone was fine since it was stock & locked boot loader when I downgrade.
Now, my phone is unlocked boot loader & rooted with latest OTA Update applied - when OTA applied,
it locked the boot loader again which I had to unlock it again.

pointdooly said:
Yes, I saw this before I try - Well I took the risk.
I can only assume that my phone was fine since it was stock & locked boot loader when I downgrade.
Now, my phone is unlocked boot loader & rooted with latest OTA Update applied - when OTA applied,
it locked the boot loader again which I had to unlock it again.
Click to expand...
Click to collapse
Are you sure about this ? The risk is unrepairable motherboard .

pointdooly said:
Yes, I saw this before I try - Well I took the risk.
Click to expand...
Click to collapse
You saw the thread but understood nothing.
You had/have 8.0.0.375, the issues start at 8.0.0.377, and the OP already has 8.0.0.378, FFS.
Read more there... @lawong better safe than sorry

pointdooly said:
There is a possible workaround which I did last week.
First, I had upgraded version of Android 8.0 (MHA-L29 8.0.0.375(C567)(Stock Official) and possible to obtain the bootloader code when I start this process.
Here is what I did.
1. Downgrade to Android 7.0(EMUI 5.0) by using Huawei's HiSuite software
Click "Update" and select earlier version.
Current : MHA-L29 8.0.0.375(C567)(Official)
Earlier : MHA-L29C567B190(Official) | 2.45GB | Android 7.0(EMUI 5.0)
2. Using 3rd Party tool/service(about $5), I was able to get the bootloader code
In my case, I used DC-Unlocker tool(FREE) and purchasing 4 credits($4.71).
With the bootloader code, you can move to the next steps(root, custom ROMs, etc...)
Hope it helps!
Click to expand...
Click to collapse
How can downgrade to 7.0 from l29 385

Licaon_Kter said:
You saw the thread but understood nothing.
You had/have 8.0.0.375, the issues start at 8.0.0.377, and the OP already has 8.0.0.378, FFS.
Read more there... @lawong better safe than sorry
Click to expand...
Click to collapse
Thanks & Really Sorry for misunderstanding & misreading.
Starting 8.0.0.377 and newer version can't downgrade it => it will brick the phone!
Up to MHA-L29 8.0.0.375(C567) and lower versions can downgrade by using Huawei's HiSuite software.
Hope this clears and provide right(safe) information. I do not want to provide dangerous (which will brick) information to all.
Again, Thanks:good: and Sorry for my mistake previously.

dc unlocker still work for MHA-L29 ?

leo5111 said:
dc unlocker still work for MHA-L29 ?
Click to expand...
Click to collapse
nope ,i already ask in their forum. it wont work on the latest security.

there is phone info says its 8.0.0.375

Licaon_Kter said:
You had/have 8.0.0.375, the issues start at 8.0.0.377, and the OP already has 8.0.0.378, FFS.
Click to expand...
Click to collapse
Hi, I have MHA-L29 8.0.0.370 (C432) security patch 1 july 2018, can i unlock the bootloader with DC-Unlocker ?
I tried to downgrade with Huawei's HiSuite (version 9.0.3.300_OVE) but the "Update, swith to other version" doesn't appear.
Up to which version 8.0.0.??? ( or security patch ? ) can Mate 9 be downgraded with Huawei's HiSuite
Up to which version 8.0.0.??? ( or security patch ? ) can DC-Unlocker unlock the bootloader ?
It seeems like you need to first upgrade from Nougat 7.x to Oreo 8.x WITH Huawei's HiSuite,
only then the "swith to other version" is available in Huawei's HiSuite to roll back from 8.x to 7.x ... correct ?

chaozu said:
Hi, I have MHA-L29 8.0.0.370 (C432) security patch 1 july 2018, can i unlock the bootloader with DC-Unlocker ?
I tried to downgrade with Huawei's HiSuite (version 9.0.3.300_OVE) but the "Update, swith to other version" doesn't appear.
Up to which version 8.0.0.??? ( or security patch ? ) can Mate 9 be downgraded with Huawei's HiSuite
Up to which version 8.0.0.??? ( or security patch ? ) can DC-Unlocker unlock the bootloader ?
It seeems like you need to first upgrade from Nougat 7.x to Oreo 8.x WITH Huawei's HiSuite,
only then the "swith to other version" is available in Huawei's HiSuite to roll back from 8.x to 7.x ... correct ?
Click to expand...
Click to collapse
i need some info to be able to downgrade for unlocking bootloader too. desperately needed root. so many ads in apps nowdays.

I have a MHA-L09 I want to unlock the bootloader on.
I can't seem to find anywhere that explains it with valid links
Sent from my Huawei Mate 9 using XDA Labs

dmwill69 said:
I have a MHA-L09 I want to unlock the bootloader on.
I can't seem to find anywhere that explains it with valid links
Click to expand...
Click to collapse
unfortunately there no unlock solution for us after gpu turbo ( from what i have read) and im plannig to sold my mate 9 as i have buying brand new xiaomi redmi note 7 and mi max 3.
this device has a very nice superb hardware but the locked bootloader really bad.

HI. I have a Mate 9 MHA-L00 with unlocked bootloader and installed KANGVIP ROM (Android 7...). I would like to try OpenKirin based PIE ROM, but in order to do that I would have to go back to stock EMUI and thus my bootloader would be re-locked. Is there a way to read the bootloader code again on an unlocked bootloader MHA-AL00? I am googling but can't find anything. I know there is DC-Unlocker but I would like to use that as a last resort. Thanks.

What OS for Mediapad T5?

Hello guys,
I made a big mistake - I bought the Mediapad T5 in the 16GB 2 GB Ram version because I thought this is enough - however, it turns out that their EMUI occupies already 1.6 GB of RAM and therefore, even the keyboard crashes, lots of jerks when playing a video in HD, apps crash it is really a mess;
So the only idea I had (although I am not too familiar with custom ROMS) to replace EMUI by some system which does not occupy too much RAM; So I first was frustrated that the bootloader is naturally locked but I found a solution by downgrading the system and then unlock the bootlader with DC unlocker for around 4$;
Now I think I need to do the following steps:
1. Install TWRP
2. Flash a new OS
3. use TWRP to install a patch called the "low-ram property patcher", see here: https://forum.xda-developers.com/an...mod-low-ram-property-patcher-android-t3737373
Now in theory it seems easy; TWRP is naturally compatible to my device, right? So I can probably find many explanations how to get it; But then I need to find a new OS compatible for my device which is a problem; I want an OS compatible to my device with not too high RAM consumption; I thought of Lineage 15.1 but only the Mediapad M5, not the Mediapad T5 is supported; So anyone an idea what OS I can choose?
Many thanks

Seems that you need to unlock bootloader with a bought code 25 to 40 $ and I havn´t found any customroms until now...

Skyfire1 said:
Seems that you need to unlock bootloader with a bought code 25 to 40 $ and I havn´t found any customroms until now...
Click to expand...
Click to collapse
what custom roms did you find for t5?

pointbob said:
what custom roms did you find for t5?
Click to expand...
Click to collapse
I didn´t look...

Skyfire1 said:
Seems that you need to unlock bootloader with a bought code 25 to 40 $ and I havn´t found any customroms until now...
Click to expand...
Click to collapse
Hi everyone.
I have a Huawei mediapad T5 AGS2-L09. It has 2 GB RAM and 16 GB internal memory.
I updated the software and a new option in the developers optons emerged:
"OEM Unlocking" - Allow the bootloader to be unlocked
When I turn it on a dialog box pops up with a warning:
"WARNING: Device protection features will not work on this device if this setting is enabled."
You have the option to CANCEL or ENABLE.
This is it, right?
Does anyone know how to root it from here and hopefully has a custom ROM?
The build number: AGS2-L09 8.0.0.222(OCEC432)
Android security patch: September 5, 2019

This option may or may not help. On Xiaomi devices the bootloader can only be unlocked by Xiaomi. The option you see in do is not made by Lenovo I think, it is an Android option. Please check it and try to install TWRP. Afaik Huawei does not allow unlocking...
PLEASE MAKE SURE TO USE ONLY TWRP THAT IS PROOVEN TO WORK WITH YOUR DEVICE!!!!

Skyfire1 said:
This option may or may not help. On Xiaomi devices the bootloader can only be unlocked by Xiaomi. The option you see in do is not made by Lenovo I think, it is an Android option. Please check it and try to install TWRP. Afaik Huawei does not allow unlocking...
PLEASE MAKE SURE TO USE ONLY TWRP THAT IS PROOVEN TO WORK WITH YOUR DEVICE!!!!
Click to expand...
Click to collapse
Ok, I totally won't twrp it unless I'm sure.

Hello,
I just bought this tab ( 3gb version), but i don't understand why there is no custom rom on this Tab. No LineageOS for exemple ?
So sad
Why ??

Nixeus said:
Hello,
I just bought this tab ( 3gb version), but i don't understand why there is no custom rom on this Tab. No LineageOS for exemple ?
So sad
Why ??
Click to expand...
Click to collapse
Because it's Huawei, they don't want your device unlocked and replaced with unsanctioned software so you can remove the Chinese government spyware

Ok Guys, I need you. Downgrade Emui or Modify all android.

Hello guys !!
How are you today? because im ultra fine like all the days.
Well, i want to ask you if you can help me with this problem;
I Have a Smartphone Huawei, model "Mate 9 (MHA-09)", with Bootloader Locked, system Emui 9.1 = Android 9, FRP Unlocked.
For me, my 2 solutions are:
" Downgrade Emui 9.1 to Emui 9.0, then, to Emui 8, and finally, to unlock bootloader whit DC-Unlocker"
" Or change all the system with root, like the launcher, the notification panel, menu, etc"
I read about:
° HuRupdater
° Upgrade / Downgrade by SD Card With Dload
° Downgrade With Hi Suite 9.0 or 5.0 with FunkyHuawei
° Install TWRP whit NoChek
° Firmware Finder
° DC- Unlocker
° Xloader
° Update With SD 16Gb and not 32Gb
and i try, and i try.
and thats why i am here, i still can´t find those solutions, and i need help.
Can you help me please?

PatadaVoladora! said:
Hello guys !!
How are you today? because im ultra fine like all the days.
Well, i want to ask you if you can help me with this problem;
I Have a Smartphone Huawei, model "Mate 9 (MHA-09)", with Bootloader Locked, system Emui 9.1 = Android 9, FRP Unlocked.
For me, my 2 solutions are:
" Downgrade Emui 9.1 to Emui 9.0, then, to Emui 8, and finally, to unlock bootloader whit DC-Unlocker"
" Or change all the system with root, like the launcher, the notification panel, menu, etc"
I read about:
° HuRupdater
° Upgrade / Downgrade by SD Card With Dload
° Downgrade With Hi Suite 9.0 or 5.0 with FunkyHuawei
° Install TWRP whit NoChek
° Firmware Finder
° DC- Unlocker
° Xloader
° Update With SD 16Gb and not 32Gb
and i try, and i try.
and thats why i am here, i still can´t find those solutions, and i need help.
Can you help me please?
Click to expand...
Click to collapse
You can downgrade simply by HiSuite, see discussion (check also the earlier posts):
https://forum.xda-developers.com/showpost.php?p=80889343&postcount=3
That way you can go down to EMUI 8 but not earlier than to the firmwares with Security patch 07/2018 or later
And you cannot (and must not - people hardly bricked various Huawei phones, not just Mate 9) roll-back further because at that time Huawei changed the Bootloader
It actually means that you cannot go back to be 'able' to use old/good DC Unlocker - instead of DC Unlocker you will have bricked device that can only be repaired by Testpoints method
Also, only by Testpoints method you can rollback to Oreo, Security patch 06/2018 or earlier, that you can then unlock by DC Unlocker.
It was discussed in one of the threads here for Mate 9, about two months ago - please search
It was also asked and answered in another Mate 9 thread (during the last month or so - please search, you will find) about the available options to unlock Bootloader - but all goes down to the Testpoints, and some costs (to Halabtech, HCU or a particular Telegram group) that are about 30 Euros or more
Only those who never upgraded over Oreo firmwares with Security patch 06/2018 (that is, who still have the older Bootloader) can simply unlock the Bootloader with DC Unlocker for about 4 Euros ;-(

zgfg said:
You can downgrade simply by HiSuite, see discussion (check also the earlier posts):
https://forum.xda-developers.com/showpost.php?p=80889343&postcount=3
That way you can go down to EMUI 8 but not earlier than to the firmwares with Security patch 07/2018 or later
And you cannot (and must not - people hardly bricked various Huawei phones, not just Mate 9) roll-back further because at that time Huawei changed the Bootloader
It actually means that you cannot go back to be 'able' to use old/good DC Unlocker - instead of DC Unlocker you will have bricked device that can only be repaired by Testpoints method
Also, only by Testpoints method you can rollback to Oreo, Security patch 06/2018 or earlier, that you can then unlock by DC Unlocker.
It was discussed in one of the threads here for Mate 9, about two months ago - please search
It was also asked and answered in another Mate 9 thread (during the last month or so - please search, you will find) about the available options to unlock Bootloader - but all goes down to the Testpoints, and some costs (to Halabtech, HCU or a particular Telegram group) that are about 30 Euros or more
Only those who never upgraded over Oreo firmwares with Security patch 06/2018 (that is, who still have the older Bootloader) can simply unlock the Bootloader with DC Unlocker for about 4 Euros ;-(
Click to expand...
Click to collapse
Hello mate.
I had tried before posting, but it didn't work.
So far the temporary solution I found (which I also tried for Dload and Hi suite, and it did not work, maybe I am wrong) is to perform a Downgrade from Emui 9.1 to 9.0, then you can perform a Downgrade to Emui 8.0. (but it is not possible to do it directly from 9.1 to 8.0)
I have an information puzzle, I still can't get to Emui 8, I keep reading, trying, buy 4 credits in DC, and surprise, they can't unlock it, and I already tried so hard, for so long that I'm seeing if I already sell Huawei, and I add it to my friends list "Never Buy again"
as ise with LG, Samsung, Xiaomi.
It is frustrating, he became a dictator huawei with his Sisteman "Emui" with which I can not even clean my quiet ass without bothering with his updates

PatadaVoladora! said:
Hello mate.
I had tried before posting, but it didn't work.
So far the temporary solution I found (which I also tried for Dload and Hi suite, and it did not work, maybe I am wrong) is to perform a Downgrade from Emui 9.1 to 9.0, then you can perform a Downgrade to Emui 8.0. (but it is not possible to do it directly from 9.1 to 8.0)
I have an information puzzle, I still can't get to Emui 8, I keep reading, trying, buy 4 credits in DC, and surprise, they can't unlock it, and I already tried so hard, for so long that I'm seeing if I already sell Huawei, and I add it to my friends list "Never Buy again"
as ise with LG, Samsung, Xiaomi.
It is frustrating, he became a dictator huawei with his Sisteman "Emui" with which I can not even clean my quiet ass without bothering with his updates
Click to expand...
Click to collapse
Yes, exactly as in my post you cited. You downgraded from 9.1 to 9.0, then from 9.0 to 8.0, but you are still with the newer 8.0 sharing the same new Bootloader as 9.0 or 9.1 - the same new Bootloader that cannot be unlocked for 4 EUR.
You would have to downgrade further, to the older 8.0 firmwares (before GPU Turbo and/or earlier than Security Patch 06/2018 - they usually correspond to the jump from the old xloader to the new one).
But such downgrading is not possible by e.g. HiSuite, and if you enforce it by DLOAD, you would jump to the band wagon with several other users of various Huawei devices who similarly wanted to 'cheat' - but instead of unlocking Bootloaders for the cheap 4 EUR, they hard-bricked their phones.
There is only one method to downgrade to that old xloader.img - TestPoints: it requires to open the phone, to shorten pins on the TestPoints at motherboard and then to use a special loader and driver by Huawei to flash the board image. You may have problems to restore IMEI(s).
If you are interested about, search on XDA and outside, you will find the guides.
Actually, there were even instructions here (not very detailed - requiring further research for resources), under the Mate 9, Q/A or Guides section (e.g., I remember that I have asked for how-to at late Aug or early Sep, got a short answer but I never pursued to try it on my own)
E.g., attached is a photo of TestPoints pins for Mate 9

finally, I have the solution
zgfg said:
Yes, exactly as in my post you cited. You downgraded from 9.1 to 9.0, then from 9.0 to 8.0, but you are still with the newer 8.0 sharing the same new Bootloader as 9.0 or 9.1 - the same new Bootloader that cannot be unlocked for 4 EUR.
You would have to downgrade further, to the older 8.0 firmwares (before GPU Turbo and/or earlier than Security Patch 06/2018 - they usually correspond to the jump from the old xloader to the new one).
But such downgrading is not possible by e.g. HiSuite, and if you enforce it by DLOAD, you would jump to the band wagon with several other users of various Huawei devices who similarly wanted to 'cheat' - but instead of unlocking Bootloaders for the cheap 4 EUR, they hard-bricked their phones.
There is only one method to downgrade to that old xloader.img - TestPoints: it requires to open the phone, to shorten pins on the TestPoints at motherboard and then to use a special loader and driver by Huawei to flash the board image. You may have problems to restore IMEI(s).
If you are interested about, search on XDA and outside, you will find the guides.
Actually, there were even instructions here (not very detailed - requiring further research for resources), under the Mate 9, Q/A or Guides section (e.g., I remember that I have asked for how-to at late Aug or early Sep, got a short answer but I never pursued to try it on my own)
E.g., attached is a photo of TestPoints pins for Mate 9
Click to expand...
Click to collapse
Men, thanks for the answer, and sharing your time.
Well,
Finally, I found the solution that I wanted to apply a long time ago.
Which one?
simple; Take the cell phone, sell it and send the **** to Huawei.