Is there any way to install Custom ROMS after updating to EMUI9? - Huawei P20 Questions & Answers

Hi everyone,
I got my p20 at release so I have the unlocked bootloader
After a few months of getting along with EMUI, the newest version (EMUI9) is just pissing me off with bugs and terrible performance.
I tried installing TWRP but it doesent work (cant touch any of the UI in twrp.)
In the Forum i read it has to do with EMUI9, so my question is:
Is there any way to get TWRP to work and install roms or do i have to wait for an TWRP update?

Just downgrade to emui 8, you have to do it through PC app. Just search for updates and there should be line to downgrade.

how to get unlocked bootloader code now ?

KUANJILAODEHUA said:
how to get unlocked bootloader code now ?
Click to expand...
Click to collapse
not possible

Where are you guys finding custom roms? I remember seeing a russian site or something but cant seem to find that link anymore. I know it had havoc os and stuff.

jackching said:
Where are you guys finding custom roms? I remember seeing a russian site or something but cant seem to find that link anymore. I know it had havoc os and stuff.
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Click to collapse
You can use GSI roms (treble roms)

madoxx77 said:
You can use GSI roms (treble roms)
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Click to collapse
Is there a good starting guide for treble roms? I got the bootloader unlocked and thats it. It's kirin 970 if that makes any difference. SHould i downgrade to emui 8?

jackching said:
Is there a good starting guide for treble roms? I got the bootloader unlocked and thats it. It's kirin 970 if that makes any difference. SHould i downgrade to emui 8?
Click to expand...
Click to collapse
I know this reply is a bit late but anyway,
Openkirin released a build of Resurrection Remix 7.0.1 for EMUI 9 devices this week, and it looks like the P20 is on the supported list. GApps and stock Huawei camera are preinstalled. It might be your best bet for compatibility.
I was going to try it out myself but I haven't unlocked my bootloader yet (but have the code) and to be honest EMUI 9 is good enough for me as a daily driver, I can't find a good enough reason to flash.
EDIT 21/04/19: Unlocked my bootloader and installed RR 7 and touchscreen doesn't seem to be working on my phone. Same thing with Omnirom. Going back to stock for now. Devs on the Telegram support said to wait for the next build.

madoxx77 said:
You can use GSI roms (treble roms)
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Click to collapse
Yeah, but following this forum I have noticed that many users encounter problems like not working fingerprint scanner or hotspot on treble based ROMs.
Or maybe you can point on on some Android Oreo ROM working properly on P20? (Want Oreo because of Xposed, not sure if it is already ported to Pie)
Apearently software-wise Huawei is still as bad as it was 5 years ago (still remember and hate my Huawei G6), because when bought this phone (P20) hoped that at least it supports treble... sadly - just partially
Ryandos said:
I know this reply is a bit late but anyway,
EDIT 21/04/19: Unlocked my bootloader and installed RR 7 and touchscreen doesn't seem to be working on my phone. Same thing with Omnirom. Going back to stock for now. Devs on the Telegram support said to wait for the next build.
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Thanks for information, cannot wait when I will be able to get away from EMUI :laugh: :good:

Chill it BanG said:
Thanks for information, cannot wait when I will be able to get away from EMUI :laugh: :good:
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Click to collapse
Me too haha.
You could try it yourself if you really wanted to, it seems to be a hit or miss whether people have this bug or not. A dev told me a few other P10s have the problem while his own P10 works fine. I haven't seen many P20 users though.

Related

n00b here, root guide?

hi, id like to know how to root my huawei mate 9. i have a laptop and a license for supersu. supersu forums are offline. any help is appreciated. thanks.
R1SC said:
hi, id like to know how to root my huawei mate 9. i have a laptop and a license for supersu. supersu forums are offline. any help is appreciated. thanks.
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Click to collapse
Hello. I prefer using magisk over SU. And I just wrote up a guide a few days back on how to do that (as long as your running Android Oreo/EMUI 8.
https://forum.xda-developers.com/mate-9/how-to/guide-install-magisk-mate-9-running-t3773878
Wirmpolter said:
Hello. I prefer using magisk over SU. And I just wrote up a guide a few days back on how to do that (as long as your running Android Oreo/EMUI 8.
https://forum.xda-developers.com/mate-9/how-to/guide-install-magisk-mate-9-running-t3773878
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Click to collapse
Hey just wanted to ask is emui 8 worth getting over emui 5? I'm running a custom ROM atm.
KitsuneUK said:
Hey just wanted to ask is emui 8 worth getting over emui 5? I'm running a custom ROM atm.
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Click to collapse
That's tough to answer.....it's all a manner of opinion really. I had slightly better SOT though in emui 5 (since its running Android Nougat) where as emui 8 us Android Oreo. Truthfully I flashed an AOSP ROM after I upgraded to emui 8 because once you go to emui 8 / Android Oreo, it enables treble support. I'm not a big fan of emui in the first place though. However, the AOSP ROM's are newer so they are still wip when it comes to working 100% for the huawei mate 9.
May I ask what custom ROM you are using? And how do you find it? What's your SOT?
Wirmpolter said:
Hello. I prefer using magisk over SU. And I just wrote up a guide a few days back on how to do that (as long as your running Android Oreo/EMUI 8.
https://forum.xda-developers.com/mate-9/how-to/guide-install-magisk-mate-9-running-t3773878
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Click to collapse
awesome! thanks mate, ive got oreo emui 8.
R1SC said:
awesome! thanks mate, ive got oreo emui 8.
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Click to collapse
You're welcome
Wirmpolter said:
Hello. I prefer using magisk over SU. And I just wrote up a guide a few days back on how to do that (as long as your running Android Oreo/EMUI 8.
https://forum.xda-developers.com/mate-9/how-to/guide-install-magisk-mate-9-running-t3773878
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Click to collapse
how do i find my boot image file?
R1SC said:
how do i find my boot image file?
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Click to collapse
Download firmware from http://pro-teammt.ru/firmware-database/ (if available) and unpack update.app from update.zip
Open update.app in Huawei Update Extractor and extract ramdisk.img, this is the boot image file that magisk manager needs to patch.
Wirmpolter said:
That's tough to answer.....it's all a manner of opinion really. I had slightly better SOT though in emui 5 (since its running Android Nougat) where as emui 8 us Android Oreo. Truthfully I flashed an AOSP ROM after I upgraded to emui 8 because once you go to emui 8 / Android Oreo, it enables treble support. I'm not a big fan of emui in the first place though. However, the AOSP ROM's are newer so they are still wip when it comes to working 100% for the huawei mate 9.
May I ask what custom ROM you are using? And how do you find it? What's your SOT?
Click to expand...
Click to collapse
I'm currently using fRomFuture, and truthfully i was gonna get oreo the install RR (assuming it can work with my model). My screen on time is around 4-5 hours. If you're willing id appreciate some help on the process cause installing roms and stuff on huawei is not my strong point
KitsuneUK said:
I'm currently using fRomFuture, and truthfully i was gonna get oreo the install RR (assuming it can work with my model). My screen on time is around 4-5 hours. If you're willing id appreciate some help on the process cause installing roms and stuff on huawei is not my strong point
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Yeah, of course. I'll help out as best as I can.. What is your complete model number with region? L29636?
Wirmpolter said:
Yeah, of course. I'll help out as best as I can.. What is your complete model number with region? L29636?
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Click to collapse
im on L29C432, I'm UK based.
KitsuneUK said:
im on L29C432, I'm UK based.
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Click to collapse
Okay... Sorry for the delay.
You'll obviously have to go back to stock first. And then hisuite should work to upgrade to Oreo. Just trying to think what the best way to return to stock would be for your model version and get you upgraded to Oreo.
i see this requires Microsoft Windows. i only have Linux. any suggestions?
Hi guys,
Im very interested in dooing a root on my huawei mate 9 iv researched all over google and youtube now 1st i should tell you that computers and mobile phone modding has never been in my field i see words like win-rar boot loaders etc to me they are just words but have no idea wat they really mean i know my huawei is running on standard os version 5 i believecan someone please explain to me how and what im supposed to do thankyou in advance for any guidance.
sc0tt187 said:
Hi guys,
Im very interested in dooing a root on my huawei mate 9 iv researched all over google and youtube now 1st i should tell you that computers and mobile phone modding has never been in my field i see words like win-rar boot loaders etc to me they are just words but have no idea wat they really mean i know my huawei is running on standard os version 5 i believecan someone please explain to me how and what im supposed to do thankyou in advance for any guidance.
Click to expand...
Click to collapse
Too late... unless you've got a bootloader unlock code before July 24. Did you? I'll guess not, hence...no root for you, enjoy GPU Turbo and Pie (whenever that comes).

OpenKirin site now launched

So it looks like the OpenKirin site is finally here and they have their Lineage based ROMs available for download.
Now it does say the 970 is a supported chipset, but it doesn't list the P20/Pro as a device.
From what I can see it looks like EMUI camera and gallery are fully supported.
I'm not rooted etc. but does anyone know who's working on this project or if it can be tested on our device at all?
Would be keen to see a nice working Lineage ROM with full support of the EMUI camera.
Here's the site: OpenKirin.net
MrDanMak said:
So it looks like the OpenKirin site is finally here and they have their Lineage based ROMs available for download.
Now it does say the 970 is a supported chipset, but it doesn't list the P20/Pro as a device.
From what I can see it looks like EMUI camera and gallery are fully supported.
I'm not rooted etc. but does anyone know who's working on this project or if it can be tested on our device at all?
Would be keen to see a nice working Lineage ROM with full support of the EMUI camera.
Here's the site: OpenKirin.net
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Click to collapse
Is this a full ROM or treble?
More ROMs can only be good, thanks for the share.
This phone definitely had something special about it
dladz said:
Is this a full ROM or treble?
More ROMs can only be good, thanks for the share.
This phone definitely had something special about it
Click to expand...
Click to collapse
It seems that it's treble via fastboot only. We have to w8 and see for confirmation, I guess.
dladz said:
Is this a full ROM or treble?
More ROMs can only be good, thanks for the share.
This phone definitely had something special about it
Click to expand...
Click to collapse
1 - YNWA
2 - what would be the advantage of the Treble releases? My dream would be that its more like stock but ..
YNWA
Treble is just a system image, probably won't completely work for every device, probably won't ever be fixed for every device.
Whereas a full ROM, usually only has to be fixed / tweaked once.[
When you install a ROM you flash most of the device and it's generally in a zip format, whereas a treble ROM is an IMG and you flash it only to the system partition leaving everything else intact.
---------- Post added at 09:06 AM ---------- Previous post was at 09:04 AM ----------
@MrDanMak
You do know that we have lineage in the ROM section right? And that the camera had been ported and its working?
P20 camera.
dladz said:
YNWA
Treble is just a system image, probably won't completely work for every device, probably won't ever be fixed for every device.
Whereas a full ROM, usually only has to be fixed / tweaked once.[
When you install a ROM you flash most of the device and it's generally in a zip format, whereas a treble ROM is an IMG and you flash it only to the system partition leaving everything else intact.
---------- Post added at 09:06 AM ---------- Previous post was at 09:04 AM ----------
@MrDanMak
You do know that we have lineage in the ROM section right? And that the camera had been ported and its working?
P20 camera.
Click to expand...
Click to collapse
YNWA indeed! Nice to see fellow redmen in here.
Yeah I know there is a Lineage ROM, but I was under the impression the camera isn't fully working right? It still has the gallery issue doesn't it?
If you read the FAQs you will see that they mention you shouldn't flash the current downloads on the P20/Pro. They will provide builds for this phone at a later date.
MrDanMak said:
YNWA indeed! Nice to see fellow redmen in here.
Yeah I know there is a Lineage ROM, but I was under the impression the camera isn't fully working right? It still has the gallery issue doesn't it?
Click to expand...
Click to collapse
Yea that's true but at the same time, the fact that the p20 camera app actually starts is great news.
I'm sure the gallery app can be used, haven't looked into it myself but it should be fixable.
dladz said:
Is this a full ROM or treble?
More ROMs can only be good, thanks for the share.
This phone definitely had something special about it
Click to expand...
Click to collapse
Hi mate I am using a UK c782 any custom rom you would recommend?
Sttrory said:
Hi mate I am using a UK c782 any custom rom you would recommend?
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Click to collapse
So there's very few custom ROM's here for the Pro, there's one called Romaur and a Lineage ROM, haven't flashed either.
All i did was unlock bootloader, install TWRP and Root, then i've tweaked the OS so that it's faster and more stable.
Themed it and for me that's enough.
I did debrand though so you may want to look at that first, the c432 device is the EU one i think or whats predominantly used in EU countries, mine was the c782 L09 which is the single sim variant from EE.
Changing over to c432 has allowed me to get the latest updates like 120 - 128 and i think at some point b131 will drop.
The c782 afaik is still on 110 which is a bit crap.
Check the guide here to debrand: https://forum.xda-developers.com/showpost.php?p=76785704&postcount=152 if it's something you want to do.
Guide to install OTA updates when you have TWRP installed and are rooted etc: https://forum.xda-developers.com/showpost.php?p=76844754&postcount=254
Hopefully there will be more ROM's but at the moment it's extremely quiet.
Treble is a bit of an issue for us i think because the installation method requires the use of TWRP to wipe and i've read somewhere that it can't wipe correctly so it fails when you flash a treble IMG.
There's a few great guides to install treble in one of the threads over in the project treble section, take a look.
I'll get around to installing treble img's at some point but can't today.
dladz said:
So there's very few custom ROM's here for the Pro, there's one called Romaur and a Lineage ROM, haven't flashed either.
All i did was unlock bootloader, install TWRP and Root, then i've tweaked the OS so that it's faster and more stable.
Themed it and for me that's enough.
I did debrand though so you may want to look at that first, the c432 device is the EU one i think or whats predominantly used in EU countries, mine was the c782 L09 which is the single sim variant from EE.
Changing over to c432 has allowed me to get the latest updates like 120 - 128 and i think at some point b131 will drop.
The c782 afaik is still on 110 which is a bit crap.
Check the guide here to debrand: https://forum.xda-developers.com/showpost.php?p=76785704&postcount=152 if it's something you want to do.
Guide to install OTA updates when you have TWRP installed and are rooted etc: https://forum.xda-developers.com/showpost.php?p=76844754&postcount=254
Hopefully there will be more ROM's but at the moment it's extremely quiet.
Treble is a bit of an issue for us i think because the installation method requires the use of TWRP to wipe and i've read somewhere that it can't wipe correctly so it fails when you flash a treble IMG.
There's a few great guides to install treble in one of the threads over in the project treble section, take a look.
I'll get around to installing treble img's at some point but can't today.
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Click to collapse
Many thanks mate
Sttrory said:
Many thanks mate
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Click to collapse
no worries man, but id say read up before committing, this phone is so different to any device i've ever had.
Sttrory said:
Many thanks mate
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Click to collapse
May I know what does debrand means ?
olygopoly said:
May I know what does debrand means ?
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Click to collapse
If you bought you're device in the UK it's highly likely it's branded (even if there's no visual indications that it is) to a mobile network. Mine was bought via Mobiles.co.uk on 02 network and I assumed it was completely unbranded as there was no bloatware or 02 branding but apparently any updates from Huawei need to go though 02's checks before being pushed out and so updates are slooooowwww. debranding is essentially removing any ties to a network thus you get the Huawei updates as soon as they push them out.
Deano1889 said:
If you bought you're device in the UK it's highly likely it's branded (even if there's no visual indications that it is) to a mobile network. Mine was bought via Mobiles.co.uk on 02 network and I assumed it was completely unbranded as there was no bloatware or 02 branding but apparently any updates from Huawei need to go though 02's checks before being pushed out and so updates are slooooowwww. debranding is essentially removing any ties to a network thus you get the Huawei updates as soon as they push them out.
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Click to collapse
Thanks for the explaination

Released Source Honor 10

Thats quick from Huawei/Honor to be honest.
Models : COL-AL00-AL10-TL00-TL10-L29 (direct link)
Otherwise take a look over here
for more devices as well
Good luck Devs
:victory:
This means roms are coming? ?
Well since the source is released for sure we can make something out of it. At the moment im focused on making Huawei P9 EU rom cause although the chinese version has an oreo, rebranding doesnt let our devices to connect in any network. So yeah bare with me and ill start working with customized emui based firmware or a GSI aosp that you will still have advantages from emui like AI, Camera etc etc.
vampirian said:
Well since the source is released for sure we can make something out of it. At the moment im focused on making Huawei P9 EU rom cause although the chinese version has an oreo, rebranding doesnt let our devices to connect in any network. So yeah bare with me and ill start working with customized emui based firmware or a GSI aosp that you will still have advantages from emui like AI, Camera etc etc.
Click to expand...
Click to collapse
sounds great!
really looking forward to more action in the honor 10 forum
Yeah! Looking forward !
That was fast from honor.. Nice..
Will love to contribute in h10 forums.
released source but won’t give you bootloader code?thats huawei!
sweetjuice said:
released source but won’t give you bootloader code?thats huawei!
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Click to collapse
I dont think that any member from XDA doesnt have bootloader code so far. The problem will be in the future but again if someone wants to unlock bootloader, there will be a way to do so even if that means we have to pay a bit. For the average joe its better to be locked so we will not end up solving issues from noobs begging with posts like "please help me unbrick my device".
That means volte in custom rom? Sweet!!

Is the phone treble enabled?

Hello Everyone!
I'm currently trying to decide whether to get the Honor Note 10, or the Xiaomi Mi Max 3. While the former clearly shows strength in terms of processing power, design etc., the later one has a major advantage in software due to it having treble support.
Hence, if I may ask to those of you who already have the phone, is the device treble enabled? I currently have my OnePlus 5 running Android Pie because of treble, and I would like to have my secondary phone be as flexible as well! I am highly aware that the bootloader unlock requires a paid service, but a few dollars for having barebones AOSP roms would be something I look forward to.
Thank you in advance to those who'll answer!
SmartPhonesFan said:
Treble???
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Click to collapse
Yeah! So that it may be possible to flash GSI roms
Hi,
As Huawei doesn't allow to unlock the bootloader, you won't be able to install any GSI to it...
Some people report to have managed to unlock it with a paid option and to install TWRP.
But I am almost certain that even if they did and assuming a GSI will install and boot, you'll end up with a crippled device with features missing or not working...
I'd like to see that also but I think for now I'll stick to stock to no get stuck ,?
SmartPhonesFan said:
Treble???
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Click to collapse
Well, maybe we could find workarounds for it... But I do understand your point with having incompatible roms.. I have bricked a device before because of it. But I hope someone knowledgable could look into this, especially those who work on the Honor 10 and Honor View 10 . Anyways, I guess I'll just try by myself, got my unit just today :fingers-crossed:
Is Note 10 a A only device?

Roms

Hi,
I want to get my bootloader unlocked for snapdragon version but I there are not many roms available.
I am looking for Lineage OS or Miuirom or pixel rom.
Any idea when we can get them.
Thanks
chandu427 said:
Hi,
I want to get my bootloader unlocked for snapdragon version but I there are not many roms available.
I am looking for Lineage OS or Miuirom or pixel rom.
Any idea when we can get them.
Thanks
Click to expand...
Click to collapse
Snapdragon can't be rooted past bootloader 2. As far as roms go, there are only stock roms, but somewhere on the forum its mentioned about GSI roms, but VOLTE is broken because its always been a samsung issue and not much work being done. I'm sure there are a few people out there working on personal builds, but nothing released to the public that I've seen. (Aside from Exynos)
adj998 said:
Snapdragon can't be rooted past bootloader 2. As far as roms go, there are only stock roms, but somewhere on the forum its mentioned about GSI roms, but VOLTE is broken because its always been a samsung issue and not much work being done. I'm sure there are a few people out there working on personal builds, but nothing released to the public that I've seen. (Aside from Exynos)
Click to expand...
Click to collapse
Thanks, should have bought OnePlus 9. Heard it comes with unlocked bootloader from factory ?? Is that true?
chandu427 said:
Thanks, should have bought OnePlus 9. Heard it comes with unlocked bootloader from factory ?? Is that true?
Click to expand...
Click to collapse
Doesn't come with it but if you get it just follow the directions here
How To Unlock the Bootloader on the OnePlus 9 & 9 Pro - NaldoTech
Follow this guide to learn how to unlock the bootloader on your OnePlus 9 and 9 Pro. Most modern Android phones come with locked bootloaders, which make it
www.naldotech.com

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