Unable to upgrade to B370 or downgrade to MM - Huawei P9 Lite Questions & Answers

I am on VNS-L21C432B336 (beta) and i'm unable to install B370 via FF proxy. After downloading, it fails verification with error "failed to authenticate the package....will be deleted".
I can't post in the P9 Lite thread, so i am trying here, if someone can help me.
Do i need to downgrade to MM, B160? Cam i update to 370 via dload folder and 3 buttons method without downgrading?
I already tried rollback via this metod http://forum.xda-developers.com/huawei-p9lite/how-to/tutorial-rollback-n-to-mm-c432-devices-t3563955 and after 5% it gives the error "Software install failed! Incompatibility with current version. Please download the correct update package."
Do i have to do anything else before loading the rollback file onto the SD Card in the dload folder?

I have loaded B160 full into the dload folder and installed using the 3 buttons method whitout rollback and it worked just fine. After being on B160 i installed B370 using FF and Proxy method. Everything works as intended. Good luck!

Related

[Guide]How to update to nougat from b131 and root

This Guide is to update from B131 MM to B360 or B380 nougat. There's a new recovery with data encryption.
Realized today without issues in L09 EU, for L04 usa version only need the correct recovery stock versions , the other files are the same.
your bootloader must be unlocked first, and oem bootloader enabled....and in all the process not auto-blocked the bootloader never. Put all the flashable zips in SD.
Always put depuration usb on in dev options when connected to pc .
B360 EU update zip
B360 EU update hw
Download and install the android sdk tools, execute then sdk manager and only select and install android sdk tools,plattform tools and usb driver
Hisuite (for drivers)
I used Huawei_Multi-Tool_by_Team_MT_v6.zip for all the process
If you have problems with the driver, you can install in multi tool - option number 0
1 - Unrooted from B131 with the option in supersu to unroot and the option to restore stock boot
2 - With multitool I copied the recovery b131 I have extracted from update.app to ...Huawei_Multi-Tool\USER\RECOVERY and then options 3(recovery)-1(My bootloader is unlocked)-1(Install users Recovery from folder /USER/RECOVERY/) and then space bar to confirm. Flashed and rebooted automatically
3 - Go to system update and apply the ota b360, updated to nougat correctly and then the B380...
4 - I copied now the twrp for nougat to ...\Huawei_Multi-Tool\USER\RECOVERY and then options 3-1-1 and then space bar to confirm. Flashed and rebooted automatically
5 - without enter pin code or nothing in mobile, in multitool options 3-1-2(Reload device to Recovery) , this reboot and enters in twrp, manually you allow modifications-change storage to sd card and flashed supersu and rebooted( now without errors)
6- open supersu and set it to expert mode
7 - installed jrummy busybox in system\xbin, busybox
8 - tested last version of adaway, tested busybox with lucky patcher.
9 - now, i have all that I want and seems to works with all the apps that require root,
UPDATE TO B380 IF YOU DONE THE OLD TUTORIAL TO 360
sadly, the old method i removed now gives problems to update to b380, the solution I found was revert to mm with intermediate update.app in dload(disconnect the usb cable when updating), then the full update.app b131, (make sure dev option to unlock bootloader is on) unlock bootloader, update to 360 and then to 380. Install latest twrp and root with supersu for emui 5. Then, busybox from jrummy works
deadko said:
Realized today without issues in L09 EU
your bootloader must be unlocked first, and in all the process not auto-blocked the bootloader never. Put all the flashable zips in SD.
Always put depuration usb on and select archives when connected to pc . Pack to root
I used Huawei_Multi-Tool_by_Team_MT_v6.zip for all the process
1 - Unrooted with the option in supersu to unroot and the option to restore stock boot (i don't know if if was necessary but no problems)
2 - With multitool I copied the recovery b131 I have extracted from update.app to ...Huawei_Multi-Tool\USER\RECOVERY and then options 3-1-1 and then space bar to confirm. Flashed and rebooted automatically
3 - Go to system update and apply the ota b360, updated to nougat correctly
4 - I copied now the twrp nougat to ...\Huawei_Multi-Tool\USER\RECOVERY and then options 3-1-1 and then space bar to confirm. Flashed and rebooted automatically
5 - without enter pin code or nothing in mobile, in multitool options 4-1-1-selected supersu 2.79 emui 5.0-1-1 , this reboot and enters in twrp, manually you allow modifications-change storage to sd card and flashed supersu and rebooted( there are errors but the process end succefully.)
6- installed supersu from play store and set to expert mode
7 - with app quick reboot, rebooted to twrp and flashed busybox, reboot and update binaries in busybox
8 - tested last version of adaway, set nova for default launcher in options
9 - now, i have all that I want and seems to work all the apps that require root,
In dev options i see hability oem unlock greyed but activated (not possible to change it, someone knows why?) and system updates automatic activated that I disabled
Click to expand...
Click to collapse
It's nice to see a step by step but I have a couple of questions. The errors you got when flashing TWRP with the tool.. did they have to do with encryption? Meaning, do you have access to the data partition? Can you confirm that AdAway actually works? Every other post I see is that AdAway successfully installs, but fails to block any ads (my guess is because the hosts file did not get updated because it's not a full root you get when flashing supersu. Also, I've yet to see where you can relock the bootloader without fully flashing back to a full stock rom, which I have not seen a full copy of B360 available or even a process to do this yet.
Thanks!
joesee said:
It's nice to see a step by step but I have a couple of questions. The errors you got when flashing TWRP with the tool.. did they have to do with encryption? Meaning, do you have access to the data partition? Can you confirm that AdAway actually works? Every other post I see is that AdAway successfully installs, but fails to block any ads (my guess is because the hosts file did not get updated because it's not a full root you get when flashing supersu. Also, I've yet to see where you can relock the bootloader without fully flashing back to a full stock rom, which I have not seen a full copy of B360 available or even a process to do this yet.
Thanks!
Click to expand...
Click to collapse
I tested adaway now with blackmarket, you know if no adaway, when you close it, it popups an ad, now it closes without ad, like in b131 rooted, so it's fully working last version.
Only access to SD card, no data partition
I don't know how to relock, because I'm not interested in relock, someone knows and post it here?
I have updated the manual because of new great recovery , hope you understand it, if not,respond here
deadko said:
I have updated the manual because of new great recovery , hope you understand it, if not,respond here
Click to expand...
Click to collapse
You said "sadly, the old method i removed now gives problems to update to b380, the solution I found was revert to mm with intermediate update.app in dload(disconnect the usb cable when updating), then the full update.app b131, (make sure dev option to unlock bootloader is on) unlock bootloader, update to 360 and then to 380. Install latest twrp and root with supersu for emui 5. Then, busybox from jrummy works"
When I see the manual..... Did that mean I have to be on b131 with "intermediate update.app in dload(disconnect the usb cable when updating), then the full update.app b131" and only I have to unlock the bootloader and I will be able to update to b360 with dload method on my sdcard and then to b389, which is the official at this moment? After this I can install twrp and root if I want?
dewadi said:
You said "sadly, the old method i removed now gives problems to update to b380, the solution I found was revert to mm with intermediate update.app in dload(disconnect the usb cable when updating), then the full update.app b131, (make sure dev option to unlock bootloader is on) unlock bootloader, update to 360 and then to 380. Install latest twrp and root with supersu for emui 5. Then, busybox from jrummy works"
When I see the manual..... Did that mean I have to be on b131 with "intermediate update.app in dload(disconnect the usb cable when updating), then the full update.app b131" and only I have to unlock the bootloader and I will be able to update to b360 with dload method on my sdcard and then to b389, which is the official at this moment? After this I can install twrp and root if I want?
Click to expand...
Click to collapse
I think this manual is obsolete, because the new updates go to B402 and here b360 and b380. You must tell me in what situation are you, what version do you have now?
deadko said:
I think this manual is obsolete, because the new updates go to B402 and here b360 and b380. You must tell me in what situation are you, what version do you have now?
Click to expand...
Click to collapse
I bought the phone with b389 but I revert back to b131 using the official firmware and rollback package from the Honor website using the dload method, just to had the impression to use it under MM . Now I would like to update to Nougat, like was before. My phone is not rooted but I am considering to unlock the boot loader and root it.
dewadi said:
I bought the phone with b389 but I revert back to b131 using the official firmware and rollback package from the Honor website using the dload method, just to had the impression to use it under MM . Now I would like to update to Nougat, like was before. My phone is not rooted but I am considering to unlock the boot loader and root it.
Click to expand...
Click to collapse
the MM version was very good and the mobile works very well, but now in b402 the nougat works very well too. I encourage you to put the last version.
I remember when you put the intermediate version, then you must put in sd the full rom update.app b131 and start the honor touching 3 buttons and updates automatically.Then you have MM.
deadko said:
the MM version was very good and the mobile works very well, but now in b402 the nougat works very well too. I encourage you to put the last version.
I remember when you put the intermediate version, then you must put in sd the full rom update.app b131 and start the honor touching 3 buttons and updates automatically.Then you have MM.
Click to expand...
Click to collapse
How to update from b131 to b402? If I download manually the b402 could I installed in the same way, using the dload folder on the sdcard like install MM ore they have to be some firmware between them? My phone is not rooted and the bootloader is locked.
When I see your manual I understand I can update to b360 using the dload folder on the sd card but before that I have to unlocked the bootloader. It's that correct?
dewadi said:
How to update from b131 to b402? If I download manually the b402 could I installed in the same way, using the dload folder on the sdcard like install MM ore they have to be some firmware between them? My phone is not rooted and the bootloader is locked.
When I see your manual I understand I can update to b360 using the dload folder on the sd card but before that I have to unlocked the bootloader. It's that correct?
Click to expand...
Click to collapse
the bootloader can be unlocked at any time, i recommend to use the update through mobile to last official, and then to unlock bootloader and root. for example if you decide to stay in MM and unlock bootloader, when you decide to go to nougat, the bootloader locks itself another time when passed the b394 , from b394 to the last b402 do not lock it.
deadko said:
the bootloader can be unlocked at any time, i recommend to use the update through mobile to last official, and then to unlock bootloader and root. for example if you decide to stay in MM and unlock bootloader, when you decide to go to nougat, the bootloader locks itself another time when passed the b394 , from b394 to the last b402 do not lock it.
Click to expand...
Click to collapse
Could I update to b402 offline, like I revert back to MM with the firmware and rollpack package for the b131?
dewadi said:
Could I update to b402 offline, like I revert back to MM with the firmware and rollpack package for the b131?
Click to expand...
Click to collapse
I recommend online, because possibly, to update correctly must need to be incremental updates throught updates online to last.

Differnse between Rcovery Marsmellow and Nougat?

Hallo,
I have an MLA-L11C432, I`ve tried to update it to Nougat and I´ve flashed the nougat recovery.
The update failed, and i am although on B140.
Is it possible, that I`ve the Nougat recovery, but it run B140 (MM)?
My problem is that my phone signs in Update Manager New Version found, B330, I donloaded this but the
Install failed?
I´Ve tried it several Times, ever the same result.
Ive tried although to put the downloded B330 file extracted in dload folder on sd card and used the 3Button Method,
but it didn´t work, too.
It seems my phone isn`t to be updatet, neither inofficial nor official!!!.
Has anyone an idea or the official B140 Recovery?

Can't upgrade or downgrade software on p9lite

First off
I have a vnsL31 p9lite on mm c432b160
Unlocked bootloader and frp
Can flash TWRP, can root, can unroot
Can access fastboot
I have b160 firmware and rollback package
I have b336 update and data hw eu zips
I have the Huawei update extractor
I have Revolution recovery
I have Meticulous recovery
I have EliteKernel
I have the OEM unlock code
I have c432oeminfo zip and oeminfo with a custom.bin
I have hisuite
Phone is working fine
My issue is that I can't upgrade the phone or downgrade the phone to any software at all.
Before my issue I was on b160 and upgraded successfully to b336 and used it for a long time. I then upgraded to b370 using firmware finder successfully. I then wanted to root nougat so I could uninstall some Google apps and tried the EliteKernel method, which didn't work and started going into bootloops. I then tried to downgrade to mm using the rollback package and then flashing b160 which worked successfully.
Then I tried upgrading back to nougat with firmware finder which didn't work, I had missing apps so I did the rollback method again which landed me on nrd90m testkeys. I followed a guide I can't remember to get back to c432 which didn't work either my phone then got bricked. It was stuck on bootloop and vibrated twice each time it tried to go past the Huawei logo. I couldn't access anything but fastboot. I then followed another guide to extract cust,boot,system and recovery images from the b160 update zip and flash those through ADB which worked and have my phone in working order.
My phone now shows build number as vnsl31c432b160 but model number as hi6250. I can't update the phone to nougat or reflash mm to get back to completely stock. Dload 3 buttons method doesn't work for b160 or b336, it goes to 7% then System incompatible error. Flashing the update zips through TWRP doesn't work either, I always get a zip error although it says done but nothing happens.
I want to get back to stock nougat or may even try a custom ROM as long as it is extremely stable. I am willing to root and unroot and do whatever need be to upgrade again. I think I have all the files necessary and should be able to follow any advice given
You must try flashing a OEMInfo for your model and correspondent firmware.. If you want, you can send me a PM with the details of your phone and I'll try to give you the exact files you need to use..
The model is VNS L31, it's dual sim and I'm currently on marshmallow b160 region c432, I bought it carrier unlocked. But the model number shows hi6250 now. I'll try flashing the oeminfo you give me and hopefully it works
This is what I mean, but it is a VNS L31

OTA Fail after unroot

Hello i have a classic P8 Lite with branded software, and i had a root with kingroot (or something like that) after unroot, the Update app notify me with a new system 300MB update. After download it fails on 19% while installing and reboot back to homescreen. So what can i do if i want a non-rooted android 6? Download B565 (android 6) version via app " Firmware Finder", and try to update? But i dont want to brick my phone... thanks for your replies!
What is your build number?
Ale-l21svkc150b181
You must debrand(change region) to europe that you might have android 6
In 5.0.1 you mustn't have unlock bootloader
Download b170 rom and b524 rollback
Flash in local update
Flash in dload b170 vendor file
Flash in dload rollback b300 file
Flash in dload b170 rom file(2gb file)
Flash in dload b170 vendor file
Download b610 update file europe for p8 lite ale-l21
Install in local update
At the first, i must lock my bootloader again? It is the same like unlocking, but i type relock ?
You have unlock bootloader? No,no may be unlocked
Kingoroot unlocked bootloader, its weird for me too. And i must download B524 and B300 rollback? But why rollback ? I have 5.0.1... and what is vendor file?

cant update my p9lite

hello so I have p9 LITE TIM SINGLE SIM ON NOUGAT A WHILE AGO I DEBRAND IT ROLLED BACK TO MM AND AFTER MANY TRIES I ENDED UP WITH C432B160 DUAL SIM PHONE WORKING FINE
NOW I TRIED TO UPDATE TO NOUGAT AND NUTHIN TRIED FIRMWARE FINDER B370 B380 B404
ALL FAILED DOWNLOADED THE FIRMWARES MANUALLY TRIED WITH SD CARD B370 B380 B394
software install failed incompatibility ISSUES
IF ANYONE CAN HELP ME PLZ
acesama said:
hello so I have p9 LITE TIM SINGLE SIM ON NOUGAT A WHILE AGO I DEBRAND IT ROLLED BACK TO MM AND AFTER MANY TRIES I ENDED UP WITH C432B160 DUAL SIM PHONE WORKING FINE
NOW I TRIED TO UPDATE TO NOUGAT AND NUTHIN TRIED FIRMWARE FINDER B370 B380 B404
ALL FAILED DOWNLOADED THE FIRMWARES MANUALLY TRIED WITH SD CARD B370 B380 B394
software install failed incompatibility ISSUES
IF ANYONE CAN HELP ME PLZ
Click to expand...
Click to collapse
After converting to dual SIM you can upgrade to Nougat via TWRP, unpack B370 onto SD card, then flash update.zip file, go back to main TWRP menu and flash second file ...hw_eu.zip. Reboot system. Use TWRP 3.0.2-0 .
But converting to dual SIM may cause problems with next system updates, includíng OTA and Firmware Finder (IMEI and infos in partition Vendor).
You can try also this solution bellow, with this method you can choose firmware, wichever you find most convenient :
https://forum.xda-developers.com/huawei-p9lite/how-to/update-p9-lite-nougat-ota-s-officials-t3661906
It works fine (self experience). Good luck!

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