Huawei P9 (EVA-L09) quasi-update with changes - Huawei P9 Questions & Answers

Hello there~
I have this little trouble to figure out proper procedure to re-install software on my Huawei P9 (EVA-L09 Single Sim).
Current state is:
- Android 6
- EMUI 4.1
- Software version EVA-L09C432B170
- Bootloader Unlocked
- TWRP installed
- Device rooted (Chainfire SuperSU however not systemless version)
- Almost nothing important left on device, cleaning stuff as we speak/write.
Desired state would be:
- Staying on Android 6 for now
- EMUI whatever for Android 6 is (4.1 probably?)
- Software version whatever but newest for Android 6 would be okay
- Bootloader Unlocked
- TWRP installed
- Device rooted but this time systemless edition if possible
I have microSD card possible to be slotted into the device if some files will be necessary to be transported that way (I guess there will be some).
If any more info is required I will try to provide some ASAP.
Thank you for advance and have a nice sunny day~ :3
iSubaru

Okay detailed explanation failed it seems, I will try simpler approach then.
I have Huawei P9 (EVA-L09) with Unblocked Boot Loader and root installed.
I would like to reinstall/update it but with full wipe and rooting again but this time, systemless root.
What will I need to do it?

Related

Android 4.4.4 update without data loss KTU84P Grouper

hi guys,
i made a little script for a mate to update to 4.4.4 without a wipe.(nothing realy special)
i hope it will work for others too.
if you choose to root TWRP recovery will installed by my script.
bootloader must be unlocked.
German
Full - http://dfiles.eu/files/1bti596b1
English bat files
update - http://dfiles.eu/files/5actgcamg
update + root - http://dfiles.eu/files/tts9b5fb7

[HELP] Rooting P10 on Oreo (B360) & EMUI 8.0

Hello, first time here but I need some help.
So I wanted to root my P10 (mainly for Viper) and I started digging around here and there (mostly in XDA). I followed few guides (on how to unlock the bootloader, how to flash TWRP, how to root...) but I still can't pull this off. Anyway, straight to the problem:
So as you can see I'm using P10 on Oreo (B360) and EMUI 8.0. I unlocked the bootloader using ADB & fastboot. Then I flashed this TWRP: link
So far everything went smooth and without any errors. I am able to boot into TWRP. So here I'm stuck trying to flash the root.zip (this one). Whenever I try I get the Error: 1 (as mentioned in the thread), however, I read here in XDA that on Oreo flashing boot.img bricks the phone? I saw several threads of people with bricked phones due to flashing boot.img. My question is - what do I do here?
I looked for other solutions like Magisk but from what I understood Viper4Android doesn't work on it.
Anyone... anything? I'd really appreciate any help.
If it's not possible (even though I've seen people with rooted P10s on Oreo...) is there a way I can revert back the changes I did so I can remove the warning message on bootup and possibly have my warranty back?
you Cant root it yet beacose there is no twrp for emui 8, so look and try some methodes root without TWRP
and why you wanna rooot emui 8, there is nothing for it, yet.
What do you mean? I already said I have TWRP and I'm able to boot into it without problems. I even linked the unofficial TWRP I flashed in my first post. Plus I saw few people here that have rooted P10s on Oreo. And finally all I want to install is Viper.
There is this TWRP by @espaciosalter20 : https://forum.xda-developers.com/p10/development/recovery-twrp-3-2-1-0-emui-8-0-4-04-2018-t3773449
should work, support for data decrpytion...
I used MAGISK 16 to root my OREO EMUI 8.0 P10
-done....
about super root and supersu working on OREO EMUI 8.0 you have to ask in the ROOT thread.
about viper4android i don´t know..i don´t use it.

Huawei P9 (EVA-L09) firmware finder problem

Hi, I've got problem with my huawei p9
I really wanted an update to a newer build, so i used firmware finder using app proxy to download it before it will show in system updater. Installation went fine but after all i noticed two things: gps is not working - it shows place where i was two weeks ago as my current location and apps from google play to repair this aren't working - and the second problem is my build number. Instead of EVA-L09C150B385 which this update supposed to bring, it is NRD90M test-keys
And my question is that: Is it possible to reverse the update? And if not is it possible to somehow easily flash stock rom to this phone. The device has stock recovery, locked bootloader and was never rooted (and if possible I would rather prefer to keep it in that state)
I've heard about some method using the sdcard but at the moment i don't have big enough at home, so is there any other way?
Previously I was using LG smartphone and it could easily be fixed using LG flash tool
Is there some kind of similar app for huawei?
I know that google isn't biting and that there were similar threads before, but neither one of them really answers my questions and most of them are more about devices with custom recovery or/and root
I would suggest following the debranding method with downgrading to old Android and then install newer version on top.
https://forum.xda-developers.com/p9/how-to/guide-debranding-to-c432-updating-to-t3551523
You will need the bootloader unlock code.
Of course because of unlocking the bootloader, your device will be wiped so make sure you will have a backup of your data
As @edmun says above, I'd rebrand your phone and then update from there. You must get an SD dude, I can't do without mine.
Once rebranded, use the following tool (all instructions are there) to get to the latest version. I got stuck on NDR test keys at the weekend and used this tool to roll-back and update.
https://forum.xda-developers.com/p9/development/rebrand-update-tool-hwota7-p9-eva-t3820849
You can always relock your bootloader and remove root once you've finished.
As far as I remember, if you will follow the "debranding" manual, at the end you will have bootloader locked.
The debranding method does not root the phone, so no need to "un-root" afterwards.
In my opinion, that is the easiest and cleanest way to restore the phone to a clean genuine software
What Newkeebrown suggested is to rebrand the phone to P9 China which will allow you to install Android 8.0 (Oreo).
Unfortunately, at this moment, I can't confirm whether it is a good idea as I am quite too busy to test this method (it would involve of course backup and restore which takes around half a day for me)
Kinda suggesting rebranding to L09C432 because there's more support on here for that version. But yes, definitely gives you the option to jump up to Oreo if you wish. I'm lucky, no backing up for me as all I need is my contacts, synced to Google. I always start fresh after flashing

[Discussion] Alternate rooting solution

Hello. I have a (locked) P Smart (FIG-LX1) that came with Android Oreo. It was a good device until it was updated to Pie. Even after the latest security update the phone is still a lot slower than when it was running Oreo, althout a bit better that the fist release (it looked more like a beta than a final release).
The point is that Huawei doesn't provide unlocking codes anymore, what is ridiculous, but being a Chinese company probably there isn't much we can do about it.
I know it is possible to unlock if the phone is downgraded and then using a paid solution, but it's it not an easy solution and not many people is willing to pay or can do it for many reasons...
I don't have any experience with Huawei/Kirin devices but other platforms like Samsung or Qualcomm have softwares that allow flashing while device is in download/EDL mode. This would make possible to flash stock firmware when the device is bricked. Using these tools it is possible to root and/or install a signed TWRP even if the bootloader isn't unlocked, so maybe there is a similar solution for P Smart.
Maybe it's possible using eRecovery? Is it possible to use it to flash unsigned data to the phone?
Any thoughts or info will be appreciated. Thanks.
Update: so far, I have found only two options that seem to work with Huawei phones that use HiSilicon/Kirin processors:
1. Some obscure IDT/Firmware writer that require enter "test mode" (it is normally done by shorting some test pads in the phone's main board), and they may not work with P Smart;
2. DC Phoenix claims to flash files while phone is in fastboot mode even with a locked bootloader, so this could be used to flash a signed TWRP to the phone and then proceed with rooting, etc, but it is also requires a payment for working.
All phones have some "unbrick" tools that work like DC Phoenix and allows flashing firmware in an emergency, and if DC Phoenix works with a simple USB cable and fastboot then there must be a way to flash a signed recovery to P Smart without needing to unlock the bootloader...
I reckon that the easiest solution is using HiSuite to rollback it to EMUI 8.0 (it gives version 8.0.0.176 for my FIG-LX1) and then using DC unlocker. However; it needs to be Windows app since macOS version does not have this feature.
It would be nice to have alternative, though. Did you manage to find any working examples of option 1 and 2?
Yes, the simplest solution so far to unlock is downgrade + DC Unlocker, but it is paid, and unlocking ins't actually needed for TWRP (and therefore rooting).
My phone is still locked and running latest firmware, but for my surprise it got a lot snappier after I did a full backup using HiSuite (I think it reset some settings and app permissions in the proccess). <<< GOOD TIP
Anyway, these are the sites with info about the procedures in my previous post:
1. Huawei IDT flash software - https://co.easy-firmware.com/how-to-flashing-huawei-board-software/
2. DC Phoenix related
Unbrick Huawei phones - https://forum.xda-developers.com/9-lite/how-to/guide-unlock-frp-phone-bootlooping-t3808650
DC Phoenix Huawei unbrick tutorial - https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial
DC Phoneix Huawei flash tutotial - https://www.dc-unlocker.com/huawei-phone-flashing-in-fastboot
Again, if it possible to flash "unverified" (i.e. non Huawei signed) images then it is possible to flahs a signed TWRP to recovery or eRecovery ramdisk partition.
lfom said:
My phone is still locked and running latest firmware, but for my surprise it got a lot snappier after I did a full backup using HiSuite (I think it reset some settings and app permissions in the proccess). <<< GOOD TIP
Click to expand...
Click to collapse
Wow ... before backup free RAM was ~1 GB, now it says 1.5-1.8 GB (like Oreo did?).

Huawei P9 EVA-L19C636B393 Android 7-Nougat

I have this phone P9 since 2016 and I still love to use it, but I can't update it anymore.. I have already rooted the phone and install TWRP recovery, is there a way to update this phone to android 10?
jtabugon said:
I have this phone P9 since 2016 and I still love to use it, but I can't update it anymore.. I have already rooted the phone and install TWRP recovery, is there a way to update this phone to android 10?
Click to expand...
Click to collapse
Huawei stopped supporting the phone, last official updates were Nougat.
For Chinese market last update was Oreo - by rebranding, you can install and use it worldwide (find and follow HWOTA-7 thread from the ROMs section ).
Upon rebranding and installing that Chinese Oreo, you can install LOS (AFAIK, 16.0 - again, look into the ROMs section
There is no such thing as A10 for this phone (maybe you could find A9 GSI - again, upon finishing HWOTA-7 and Chinese Oreo), but of questional usability

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