Downgrade from B189 to B181 - Huawei Mate 9 Questions & Answers

Hi,
As mentioned, i wish to downgrade my Mate 9 from C636 B189 to C636 B181.
Is this possible to provide me some guide or link to do so?

YShoun said:
Hi,
As mentioned, i wish to downgrade my Mate 9 from C636 B189 to C636 B181.
Is this possible to provide me some guide or link to do so?
Click to expand...
Click to collapse
https://forum.xda-developers.com/ma...ing-b138-using-firmware-t3557089/post74351819
Follow manual and choose B181 FullOTA
Check availability first (to avoid traffic consumption, cause FF just force stock updates)
I recommend do factory reset after flashing also.

Alright thank you!

Related

How to change C185 to C432

Hey guys, I have Mate 8 with C185 build, and my question is if there's a posibility to change it for example to C432? C185 version is annoying me, because I haven't got any updates. I live in Poland, but I bought the MF (if im right) version...
Another question is how to rollback to b200 or lower build if I updated it by dload metod to B320? Is it possible and hard to do? I tried factory reset, but it's still on B320. When I unpacked the phone it was on B190 build.
Thanks for help guys.
klekot31 said:
Hey guys, I have Mate 8 with C185 build, and my question is if there's a posibility to change it for example to C432? C185 version is annoying me, because I haven't got any updates. I live in Poland, but I bought the MF (if im right) version...
Another question is how to rollback to b200 or lower build if I updated it by dload metod to B320? Is it possible and hard to do? I tried factory reset, but it's still on B320. When I unpacked the phone it was on B190 build.
Thanks for help guys.
Click to expand...
Click to collapse
You can by looking reading all the threads, i done it for my 185 too
peepooh said:
You can by looking reading all the threads, i done it for my 185 too
Click to expand...
Click to collapse
Your post was really helpful. Thank you very much!

Honor 6x Rollback/Downgrade

Hello, I have problem with my Honor 6x BLN-AL10.
I upgraded my honor 6x to Android Nougat 7.0, but I want to go back to MM 6.0 is there any file that will back my system? Or tell me what can I do, how to do to back up the system, please help.
How i can look informations about my bootloader?
So I didnt unlock my bootloader i should do this? In 100% your way will help me?
Mitlex said:
So I didnt unlock my bootloader i should do this? In 100% your way will help me?
Click to expand...
Click to collapse
He meant that you should rebrand your phone to be a us version of honor 6x, then use the rollback package of the US model. That's better tbh
So tell me one more time, do I have to install another soft for example BLN-L23 and downgrade android? because i dont understant and tell me How much is it safe?
You should rebrand it to use US or EU firmware, then use the rollback package of which you rebranded your device to
Okay tell me its not problem if i will instal firmware BLN-L23 on my BLN-AL10?
Or whitch firmware i should install? BLN-AL10 is from china, BLN-L23 is from EU yes?
Mitlex said:
Or whitch firmware i should install? BLN-AL10 is from china, BLN-L23 is from EU yes?
Click to expand...
Click to collapse
It's not easy like installing a firmware, there's a rebranding guide.
Okay i find this, https://forum.xda-developers.com/honor-6x/how-to/debranding-guide-china-rom-to-variant-t3568170
I can debrand to BLN-L21? or only to L22? In L22 we have full Polish Language?
Mitlex said:
Okay i find this, https://forum.xda-developers.com/honor-6x/how-to/debranding-guide-china-rom-to-variant-t3568170
I can debrand to BLN-L21? or only to L22? In L22 we have full Polish Language?
Click to expand...
Click to collapse
You can debrand to L21, just follow the same steps, you just replace L22 firmware by L21
Okay, so if i will rebrand to BLN-L21 It's 100% I will not mess up the phone? Tell me if it's a lottery?
Make sure to do a backup
Mitlex said:
Okay, so if i will rebrand to BLN-L21 It's 100% I will not mess up the phone? Tell me if it's a lottery?
Click to expand...
Click to collapse
Rebranding is safe as long as you do the right steps.
Sent from my Honor 8 using XDA Labs
For BLN-L22 indian variant, official marshmallow firmware(1.7gb) available in their website...
This ROM will safe? https://www.xdadev.com/huawei-honor-6x-b151-marshmallow-update-europe-bln-l21.html
Yes, it's safe
Hello, when in finger firmware i find the software that i want to install, i do not see it in update. I have android 7.0 if it will help, localhost and port 8080 enabled
Disable local host first so you can see packages
ok I skipped this problem but i have next problem, When I download my software, once in a while I get the message that the WLAN is weak when I have 30mb ... and when I start installing the software, the phone starts to reset and the message "instalation failed"

marshmallow rollback for l21 C185.. currently im on B372 nougat..

i want marshmallow rollback package for L-21 c185 region.. can i have it ??
mahrukhsa2 said:
i want marshmallow rollback package for L-21 c185 region.. can i have it ??
Click to expand...
Click to collapse
Did you search in guide section??
I got same device i wanted to back mm like u but huawei didnt upload rollback pkg to mm but i have a good idea for you are you rooted?
xRevengerZee said:
I got same device i wanted to back mm like u but huawei didnt upload rollback pkg to mm but i have a good idea for you are you rooted?
Click to expand...
Click to collapse
No em not rooted
mahrukhsa2 said:
No em not rooted
Click to expand...
Click to collapse
Did you find rollback package??
There was a rollback package for L21 model..not sure if it was for C185 or C432..let me check again...it was shared long back early this year...so will be difficult to find also.
If you have already found @mahrukhsa2 please share with us
shashank1320 said:
There was a rollback package for L21 model..not sure if it was for C185 or C432..let me check again...it was shared long back early this year...so will be difficult to find also.
If you have already found @mahrukhsa2 please share with us
Click to expand...
Click to collapse
no i did not find it.. have u ?

How to update through firmware finder

Hey I installed RROS on my honor 8 and I want to revert to stock through firmware finder.
How can I do this? Can anyone provide me with a guide?
Thanks in advance
makiscfu said:
Hey I installed RROS on my honor 8 and I want to revert to stock through firmware finder.
How can I do this? Can anyone provide me with a guide?
Thanks in advance
Click to expand...
Click to collapse
You Can Follow This Guide
https://forum.xda-developers.com/honor-8/how-to/to-emui5-custom-roms-tested-openkirin-t3638445
I did but can't receive OTAs
makiscfu said:
I did but can't receive OTAs
Click to expand...
Click to collapse
Update With Firmware Finders Using The DNS Thing, No Root Needed

Change cust C10 to C432?

I got a ELS-NX9 with C10E7R3P1 cust version. It updates to 10.1.0.147.
I want to know if someone has this cust or if someone tries to change the cust to Europe (C432). I would like to install GS but everything I read is about downgrade and Firmware Finder can't give support to this cust.
Thanks!
disadamsdsdnts said:
I got a ELS-NX9 with C10E7R3P1 cust version. It updates to 10.1.0.147.
I want to know if someone has this cust or if someone tries to change the cust to Europe (C432). I would like to install GS but everything I read is about downgrade and Firmware Finder can't give support to this cust.
Thanks!
Click to expand...
Click to collapse
You can try this method. It works for many users in P30 Pro. Hope this will help you to change cust. I Have been using this method for updating my P40 Pro. Recently updated 158 firmware with it. Good Luck...:good:
https://forum.xda-developers.com/showpost.php?p=82790265&postcount=3
Thanks,
goldybewon
goldybewon said:
You can try this method. It works for many users in P30 Pro. Hope this will help you to change cust. I Have been using this method for updating my P40 Pro. Recently updated 158 firmware with it. Good Luck...:good:
https://forum.xda-developers.com/showpost.php?p=82790265&postcount=3
Thanks,
goldybewon
Click to expand...
Click to collapse
Hi!
I'll take a look, investigate and try. Fingers crossed.
Thanks for your response.
disadamsdsdnts said:
I got a ELS-NX9 with C10E7R3P1 cust version. It updates to 10.1.0.147.
I want to know if someone has this cust or if someone tries to change the cust to Europe (C432). I would like to install GS but everything I read is about downgrade and Firmware Finder can't give support to this cust.
Thanks!
Click to expand...
Click to collapse
@disadamsdsdnts Hey. did you find CUST for ELS-NX9 C10E7R3P1? Or can you tell me which region CUST you took?
disadamsdsdnts said:
I got a ELS-NX9 with C10E7R3P1 cust version. It updates to 10.1.0.147.
I want to know if someone has this cust or if someone tries to change the cust to Europe (C432). I would like to install GS but everything I read is about downgrade and Firmware Finder can't give support to this cust.
Thanks!
Click to expand...
Click to collapse
ELS-N29-CUSTC101B7 (10.1.0.7)
KINGZ_ said:
@disadamsdsdnts Hey. did you find CUST for ELS-NX9 C10E7R3P1? Or can you tell me which region CUST you took?
Click to expand...
Click to collapse
Sorry for the delay!
In the end I didn't change the CUST. Because I read that the new way that Huawei has to pack the FULL-OTA does not have the CUST inside (it goes in another file).
I used HiSuite Proxy to downgrade to .131 and it works like a charm! I only used the 'Package URL'. I read it in a Russian forum. As soon as I get home, I can post the link.
When I set up GS, I updated to .147 via Settings > Updater. This week it was also updated to .160/161, I don't remember.
So you can keep the original CUST (because I cannot find it to download and I cannot backup) and it updates when Mother Russia wants. Or I can force it with HiSuite Proxy, but never tried it for confussion about Android security patches (updated Android patches in old Huawei packages and outdated Android patches in latest Huawei packages).
KINGZ_ said:
@disadamsdsdnts Hey. did you find CUST for ELS-NX9 C10E7R3P1? Or can you tell me which region CUST you took?
Click to expand...
Click to collapse
This is the tutorial (Thanks, Serrj.). Copy to Google Translate or DeepL. It's easy!
I was under the impression that there is no way to get GMS even with downgrading currently?
I have a brand new p40 pro with 131 and am holding off updating until I can get GMS

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