How to flash TWRP and root on EMUI 9 - Huawei P20 Pro Questions & Answers

Hi sorry for the basicness of this post but I've been a Samsung user for a while so I've been used to the standard drag into Odin and forget about it format. And just re-flash stock firmware through Odin if something goes wrong. But I recently upgraded to the p20 pro and I'm worried about flashing a custom recovery onto my new phone as the last phone i tried ADB with was the HTC One M9 a few years back and I hard bricked it. I think from flashing the wrong TWRP version.
Basically I'm looking for someone to tell me how to pick the right TWRP and Magisk version that wont brick my phone and link me to a reputable guide for installing them both and what to do if something goes wrong. Say a bootloop or something.
Here are all my phone's specifications:
Model: CLT-L09
Build number: 9.0.0.168(C782E3R1P9) (Wasn't sure whether to go and install the latest update (9.0.0.255(C782E10R1P9)) or not)
EMUI 9.0.0
Kirin 970
6gb Ram
Thanks in advance

Related

[Q&A] [GUIDE] Huawei Honor 3C H30-U10 - Bootloader Unlock, Root, TWRP, CWM, KitKat

[Q&A] [GUIDE] Huawei Honor 3C H30-U10 - Bootloader Unlock, Root, TWRP, CWM, KitKat
Q&A for [GUIDE] Huawei Honor 3C H30-U10 - Bootloader Unlock, Root, TWRP, CWM, KitKat
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guys please help me out.
i've unlock the bootloader of my H30-U10 ,after that when i install the new custom rom the phone doesnt launch anymore....no pulse of vibration or screen light.....when i connect it to pc actually windows doesnt detect it at all methods not fastboot mode or flashmode or....... .... my phone doesnt start at all
plz plz plz plz help
Plz help me my honor 3c doesnt launch at all with no pulse of vibration
guys please help me out.plz plz plz :crying:
i've unlock the bootloader of my H30-U10 ,after that when i install the new custom rom [6pack by flufy tendo] with TWRP recovery.... the phone doesnt launch anymore....no pulse of vibration or screen light.....when i connect it to pc actually windows doesnt detect it at all methods not fastboot mode or flashmode or....... .... my phone doesnt start at all
plz plz plz plz help :crying: :crying: :crying:
Huawei Honor 3C
My phone not recharging
can I get the circuit diagram for Huawei Honor 3C
http://forum.xda-developers.com/showthread.php?t=2910441
hi i new twrap cant load sdcard and i dont flah modem patch i move this faile to internal memory and instal modem patch but not work gaps please help me to finde a recovery
tanks tanks
New build number 4.10.16
@codelover, LIve recovery not working with New build number 4.10.16. Pls help
Cannot boot to recovery after flash k.k based
Hi there,
I had flashed K.K based with emui2.3 from previousB115 international set with unlock bootloader.
after flashed the new K.K rom and flashed CWM carliv, then try boot to recovery to wipe data, but why nothing's happen? it stuck on 1st honor logo and can't boot to recovery
something's going wrong with my steps?
please help, i want to wipe data then root the K.K based
both confirmed here wih ver. 4.10.16,LiveTWRP seems not to be working anymore
here is the log file
thanks
Restore ROM for Honor 3C (H30-U10) to Stock JB Firmware (V100R001C900B110)
Respectable Sir,
My Dad's Honor 3c LCD had some hardware issue to troubleshoot i tried to upgrade to KITKat but the problems with the screen was persistent, i sent it to the service center but they said the warranty is void unless i restore it to the stock version (Picture for the version i need to restore is attached).
1. I restored back to Honor 3C (H30-U10) to B108 Stock JB Firmware (V100R001C900B108) but they said i need to restore back to the version it came in ...
2. " Honor 3C (H30-U10) to JB Firmware (V100R001C900B110) THIS IS THE FIRMWARE VERSION I NEED BUT I CANT FIND IT ANYWHERE "
Kindly treat my email as an SOS .
yasan1367 said:
hi i new twrap cant load sdcard and i dont flah modem patch i move this faile to internal memory and instal modem patch but not work gaps please help me to finde a recovery
tanks tanks
Click to expand...
Click to collapse
ModemFix can't be use to get IMEIs back in B108, it was made for EMUI 2.3 dev.
horlaworey said:
@codelover, LIve recovery not working with New build number 4.10.16. Pls help
Click to expand...
Click to collapse
Yes, indeed, LiveTWRP will no longer work on newer builds, i am afraid you will need to flash the recovery to device if you want to use it.
After all, the 'Live' version is a bonus, and without source i have no idea what they did that caused it failed to boot.
Rayquaza said:
I had flashed K.K based with emui2.3 from previousB115 international set with unlock bootloader.
after flashed the new K.K rom and flashed CWM carliv, then try boot to recovery to wipe data, but why nothing's happen? it stuck on 1st honor logo and can't boot to recovery
something's going wrong with my steps?
please help, i want to wipe data then root the K.K based
Click to expand...
Click to collapse
Hi, please refer to the main guide for updated button sequence to be used to boot recovery. (Will be updated shortly)
elysianz said:
both confirmed here wih ver. 4.10.16,LiveTWRP seems not to be working anymore
here is the log file
Click to expand...
Click to collapse
Live TWRP part confirmed, it can no longer be used with newer EMUI version.
For sdcard problem, can you confirm your device is H3C H30-U10? Not H3W or other variant? Intl. or China set?
I would suggest you to try the following:
1) Reset TWRP settings
2) Try other SD card, different brand if possible.
3) Smaller storage size, eg: If you are using 16GB now, try one with lower size like 8GB, 4GB.
4) Format the SD card with android, remove any extra feature such as sdcard encryption.
adeelahmad967 said:
1. I restored back to Honor 3C (H30-U10) to B108 Stock JB Firmware (V100R001C900B108) but they said i need to restore back to the version it came in ...
2. " Honor 3C (H30-U10) to JB Firmware (V100R001C900B110) THIS IS THE FIRMWARE VERSION I NEED BUT I CANT FIND IT ANYWHERE ".
Click to expand...
Click to collapse
I believed you have it connected to internet and checked for update and there is no OTA available for your device, correct?
Unfortunely HW has removed the download link for B110, i do not have any backup for B110 either, i didn't download it earlier.
For now i think what you can do it ask your friend or some else with B110 to do a TWRP backup and use the backup to restore.
You need to restore /system & /cust partitions only, once you have done that do a factory data reset from a booted system.
I wish i could help more but i have the slowest internet on the planet so nothing i can do here.
EDIT:
xperia_rebel said:
@codelover bro , I think I have.... Confirm whether the B110 international version would be fine
Click to expand...
Click to collapse
TWRP B110 backup from your country? Yea, that would be fine too, but if you have the B110 UPDATE.APP that would be better.
I am not sure if B108 locked BL could survive TWRP restore without first soft-bricking it, i didn't try that, or i tried but forgot ...
codelover said:
ModemFix can't be use to get IMEIs back in B108, it was made for EMUI 2.3 dev.
Yes, indeed, LiveTWRP will no longer work on newer builds, i am afraid you will need to flash the recovery to device if you want to use it.
After all, the 'Live' version is a bonus, and without source i have no idea what they did that caused it failed to boot.
Hi, please refer to the main guide for updated button sequence to be used to boot recovery. (Will be updated shortly)
Live TWRP part confirmed, it can no longer be used with newer EMUI version.
For sdcard problem, can you confirm your device is H3C H30-U10? Not H3W or other variant? Intl. or China set?
I would suggest you to try the following:
1) Reset TWRP settings
2) Try other SD card, different brand if possible.
3) Format the SD card with android, remove any extra feature such as encryption.
I believed you have it connected to internet and checked for update and there is no OTA available for your device, correct?
Unfortunely HW has removed the download link for B110, i do not have any backup for B110 either, i didn't download it earlier.
For now i think what you can do it ask your friend or some else with B110 to do a TWRP backup and use the backup to restore.
You need to restore /system & /cust partitions only, once you have done that do a factory data reset from a booted system.
I wish i could help more but i have the slowest internet on the planet so nothing i can do here.
Click to expand...
Click to collapse
@codelover bro , I think I have.... Confirm whether the B110 international version would be fine
Sent from my H30-U10
yes bro b11o is what i need
yes Bro B110 international will be a huge help .
asking for help
- Phone model: h30-u10
- Phone Version: international boot unlocked
- Initial Build Number: v100r001c900b110
- Last Build Number: v100r001c900b110
- Current Status: bootloop logo
- Problem/Question:unable to use xposed installer
my mobile is rooted successfully i tried all the versions of xposed installer all failed to install framework on my mobile it seems as if there is not enough permission on file system even root explorer unable to delete any file system
Zip instalation failed
Hi there,
I have follow the steps to flash emui 3.0 beta using TWRP, but the installation failed.
Any suggestion?
Thanks a lot
hi ,
just because of your guide, i was able to get back my honor 3c from soft brick to original international B115 image. thanks a lot for supporting.
@codelover
I had checked all steps you've been explained, but it goes failed when i flashed the rom through TWRP
anyway, I'll try your suggestion later, because i had flashed Emui 2.3 currently.
By the way, i had root emui 2.3 and verify by root checker, but i had problem with busybox. I cannot install it.
my system memory remains 34mb, does the memory space too small to instal busybox?
Help please
Hello! I downloaded the firmware EMUI2.3_H30-U10_4.9.1 and did everything you wrote, but after extracting the firmware by HuaweiUpdateExtractor_0.9.8.0 I did found in the folder the file '_PrepareFiles.exe' (item 13 of your post)! What is wrong? Thank you!!!
suggestion
dear sir,
it is great to have your guide with me, i just wanted to make a suggestion, at the point where you have summarize the steps for installing kit kat on international hand sets, please write an instruction that all international users must have unlocked their phones, before rom update, so after upgrading they could run live TWRP easily.
Thanks and regards once again.
Hello! I downloaded the firmware EMUI2.3_H30-U10_4.9.1 to flash the phone by Flash Tool. According the guide "Restoring Official Stock ROM using SPFT" (http://forum.xda-developers.com/show...809&postcount=) after extracting the firmware by HuaweiUpdateExtractor_0.9.8.0 the file "_PrepareFiles.exe" must be appear in the folder with extracted firmware. But in my case when I extracted the file "update.app" I did'nt find the file "_PrepareFiles.exe" in the folder (((( What is wrong? The NET.framework v.4.5.1. is instastalled. Thank you!

Stuck on NRD90M test-keys

I updated to beta Nougat using a non-official-beta method and am somehow stuck with NRD90M test keys as my build number. The rom works ok for the most part, the only thing which doesn't seem to work properly is Themes.
Would now like to know what the appropriate process is to go to the new and official stock Nougat for EVA-L19. Thanks community!
So was I and I posted about it here and got the right advice to roll back:
forum.xda-developers.com/p9/help/nougat-update-borked-p9-2-imeis-t3534530#post70475746
thank you zemblance! so it would appear that i would have to rollback to stock then only update to official nougat using the built-in updater huh?
Which recovery did u use ? I got that same problem when I flashed with 3.0.0.0 instead of 3.0.2.0
Edit: here's the one http://forum.xda-developers.com/p9/development/wip-twrp-support-t3372331/page13
z4d02 said:
Which recovery did u use ? I got that same problem when I flashed with 3.0.0.0 instead of 3.0.2.0
Edit: here's the one http://forum.xda-developers.com/p9/development/wip-twrp-support-t3372331/page13
Click to expand...
Click to collapse
not sure which TWRP i used but its fixed now. i did the rollback to lollipop. now on B190 but now Themes is being wonky and I have no magazine unlock. :/
Flash 136 again, there should be two folders hw and dt that need to be in the dload folder too.
If they aren't there you could try flashing the l09 136 first then the l19 one straight after.
Sent from my EVA-L09 using Tapatalk
Ya tone obnaveli eto rom no skajite pojalusta kak vernutsya moy zovoskoy emui 4.1 honor 6x
So I managed to get myself into this bind as well back in January, but I just didn't have the stamina to fight it and I've been running that crap ever since. Now I thought it time to take care of it.
This is the scenario. I got an unlocked EVA-L09 with TWRP 3.0.2.0 running build NRD90M test-keys and I want to "fix it" and update it to the latest version.
What do I need to do and in what order. Like, do I need to unroot/restore the Huawei bootloader, do I need to rollback to Android 6 before starting over, etc..?
And I can as well ask if the Huawei builds are preferable or perhaps there's some other ROM/mod out there worth using instead? I was on CM for years before I got the P9, though such a ROM is of course unlikely to ever be made for the P9, maybe there's a good mod..?
Farmfield said:
What do I need to do and in what order. Like, do I need to unroot/restore the Huawei bootloader, do I need to rollback to Android 6 before starting over, etc..?
And I can as well ask if the Huawei builds are preferable or perhaps there's some other ROM/mod out there worth using instead? I was on CM for years before I got the P9, though such a ROM is of course unlikely to ever be made for the P9, maybe there's a good mod..?
Click to expand...
Click to collapse
You need to download and flash the appropriate hw data update zip for the ROM that you installed.
And if you check out this forum you will see there is both Lineage OS (aka CM) and CM13 ROMs for the P9 :good:
Peace.
chris5s said:
You need to download and flash the appropriate hw data update zip for the ROM that you installed.
And if you check out this forum you will see there is both Lineage OS (aka CM) and CM13 ROMs for the P9 :good:
Peace.
Click to expand...
Click to collapse
Eh, yeah, that I know, but I'm not going to try to figure this out myself again as last time I did, I spent two days trying to get my phone to boot at all - and that's a first since I started messing with ROM's back in the HTC Hero days.
And I thought the undocumented SoC made "real" custom ROM's on P9 impossible - or did Huawei release the doc's?
Farmfield said:
Eh, yeah, that I know, but I'm not going to try to figure this out myself again as last time I did, I spent two days trying to get my phone to boot at all - and that's a first since I started messing with ROM's back in the HTC Hero days.
And I thought the undocumented SoC made "real" custom ROM's on P9 impossible - or did Huawei release the doc's?
Click to expand...
Click to collapse
Ok, so get the 2 files for the ROM you want, and flash update zip then hw data update zip next.
It worked in either TWRP or dload method for me. Of course, for dload method you need to unzip and flash each zip in turn, or TWRP can flash one after the other. Flashing will relock your bootloader...
Well, if you note my post count and alike, I'm not really a newbie here, I got 10 years experience messing about with custom Android ROM's and about the same experience of general Linux experience on top of that, so when I don't wanna do this without some trustworthy information on the workflow, etc, you should get there's good reason. So posting replies like -Oh, just flash something, it'll work out!, that looks a lot to me you just having been really lucky not getting into the situation I did.
So I will repost the question I posed and hopefully someone with that know how will reply.
I got an unlocked EVA-L09 with TWRP 3.0.2.0 running build NRD90M test-keys and I want to "fix it" and update it to the latest version. What do I need to do and in what order. Like, do I need to unroot/restore the Huawei bootloader, do I need to rollback to Android 6 before starting over, etc..?
Just to clarify....
I had an unlocked EVA-L09 with TWRP, running build NRD90M test-keys, and I wanted to fix it....
So, I downloaded update.zip and update_data_full_hw_eu.zip and flashed them one after the other using dload method. It worked. That was my workflow.
Just trying to help out, don't get shirty about it....or you can wait for someone who's been on the forum longer than me, or who has a higher post count than me. Btw, I've received help before from folks with very low post count and I know it's no indication or predictor of noob-ness.
Peace out...
*I* did the exact same thing and then spent the following 30 hours trying to get it to even boot.
And I really didn't want to be rude, but if I got that kinda post number, I'm not likely to ask for help with something like this unless I really needed it. As I said, I have a lot of experience of this stuff and I still messed up immensely trying this the first time, so I'm not even going to try before I have someone who really knows what *NOT* to do give me some hints on how to avoid getting into the same spot - because I'm not doing another 30h trying to save this phone if I mess up again, I'll just smash it and buy something else, like a used Nokia 3310, because it's just not worth the stress.

Honor 5C (NEM-L21) stuck on Honor bootup logo

Hi everyone! I decided to go back to stock from LineageOS 14.1, because 3D and AnTuTu Benchmark didn't work, just showing black screen and nothing happened. In any game did the same. So I decided to restore a TWRP backup, and I did that. It restored, but when i tried to boot up, it just stayed on the Honor logo. I tried to put the UPDATE.APP onto my SD-CARD and try to reinstall the OS, but I noticed something in TWRP, /data didn't mount for some dumb reason. I didn't think that was something bad so I ignored it. After installing the UPDATE.APP, it still does the same, stuck on Honor logo.
I know I f*cked it up, but now I want to get it fixed. Please help me !
Downgrading to EMUI 4.1 will fix it.
erayrafet said:
Downgrading to EMUI 4.1 will fix it.
Click to expand...
Click to collapse
Tried downgrading to EMUI 4.1, and downgraded well, until it remained on the Honor logo screen. I tried with different versions of NEM-L21C432 stock roms for my phone, and only the ones with 13x worked to upgrade to, but the Nougat ones didn't. And it also blocked my bootloader again, because of the downgrade to EMUI 4.1 by holding both volume buttons and the power button.
If you downgrade, first u have to use downgrade package and then install rom version NEM-L21C432B132 and then use updater in settings to upgrade to nougat, dload method doesn't work with emui 5 roms.
co5oos said:
If you downgrade, first u have to use downgrade package and then install rom version NEM-L21C432B132 and then use updater in settings to upgrade to nougat, dload method doesn't work with emui 5 roms.
Click to expand...
Click to collapse
The thing is I came back from a custom rom, more exactly the Lineage 14.1 developed by Meticulus, but it was EMUI 4.x based, so... yeah. It shows that the EMUI version is installed is NEM-L21C432B130. I tried upgrading through update.app and no luck. However, the bootloader locked. So, I send HuaweiMobileUK a tweet to give me the bootloader code for my phone. And sure enough, 2 days later, I have the bootloader code and unlocked the phone. I am going to attempt to install TWRP and then wipe everything except the SDCard and flash the update.zip with TWRP. I will try that and let you guys know if it worked.
Bogdan008 said:
The thing is I came back from a custom rom, more exactly the Lineage 14.1 developed by Meticulus, but it was EMUI 4.x based, so... yeah. It shows that the EMUI version is installed is NEM-L21C432B130. I tried upgrading through update.app and no luck. However, the bootloader locked. So, I send HuaweiMobileUK a tweet to give me the bootloader code for my phone. And sure enough, 2 days later, I have the bootloader code and unlocked the phone. I am going to attempt to install TWRP and then wipe everything except the SDCard and flash the update.zip with TWRP. I will try that and let you guys know if it worked.
Click to expand...
Click to collapse
Ok, so I tried wiping everything except the MicroSD Card and installing the update.zip FULL-OTA MF NEM-L21C432B132 and it worked. The phone still has the bootloader unlocked and now it works perfectly. So this is a good solution that worked for me ! Thank you guys for help anyways!

Updating whilst rooted? p20 pro CLT-L09

Seeing as there is no actual ROM available to copy to the memory and flash via TWRP how would someone update their firmware / base on this phone if they've unlocked the bootloader, have TWRP installed and are rooted?
I've always had a fall back ROM on my phone i could flash, i think there is a way to use the eRecovery to get back your device to Stock but i've never used it on this phone, nor have i ever had to in the past, this is a complete first for me.
So surprised that this phone didn't get more attention, with a few tweaks it's rapid.
How is everyone getting by without a custom ROM option?

I’m confused and overwhelmed. Please help me get back into my phone.

So, I have an Honor 5C (I’m in Europe, if that’s significant), I’ve been rooted for a while and today I wanted to install a custom ROM. After installing TWRP using the official app, (I tried it with fastboot, but no success) I downloaded the LineageOS 14.1 ROM and tried to install it. This failed, I got error 7 and started googling the cause. No success. Right now I’m just confused with all the different 5C models and apparently different EMUI versions. My questions:
1. How do I know what model I have? (NEM-L21, NEM-L22, NEM-L51 etc.)
2. What’s up with the EMUI versions? I know I had 4.1.2 and never got a notice saying I could update to 5.x, so how are people on those versions?
3. Same for the Android version, I was on marshmallow 6.0 but other people are on nougat?
4. I wiped everything and am unable to boot right now. What ROM must I download to boot again? And is it possible for this to be nougat, instead of marshmallow which I was previously on?
Thanks in advance, I’m very new to this scene and all the different models and versions are kind of overwhelming me
First of all, you shouldn't use the official twrp, because that once partially bricked my phone, and you should have used EliteTWRP for installing the roms, because it required you to back up before some partitions, that official twrp couldn't, also, to answer your first question, you find it out in your phone's settings app, in the About Phone section, but since you didnt look at that before you flashed and deleted everything, I don't know how to figure it out without the settings app, also diffirent region phones get diffirent updates, my dad's honor 6 never got an update out of 4.4.2, but some phones had access to newer versions(not by flashing custom roms), also you should download some dload things i dont remember how to do it, never done that myself, but for that I'm pretty sure you need to know if you're using NEM-L21, NEM-L22, NEM-L51 or something like that

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