Update failed "Failed to mount '/system' " - Huawei P20 Questions & Answers

Hi,
I just tried to update my P20 from EML-L29 8.1.0.106(C432) to EML-L29 8.1.0.110(C432)-FULL.
My Bootloader is unlocked, the phone is rooted and TWPR is installed.
After the phone has downloaded the update and is rebooting into the recovery I get the following error:
https://ibb.co/hq5hPS
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Is this error normal, beacuse I unlocked the Bootloader of the device and the updater will just be blocked by Huawei or am I doing something wrong?
Is the another methode to update the device?
Thanks for your help
Edit: Image is not displayed, I added the link

Benwohlio said:
Hi,
I just tried to update my P20 from EML-L29 8.1.0.106(C432) to EML-L29 8.1.0.110(C432)-FULL.
My Bootloader is unlocked, the phone is rooted and TWPR is installed.
After the phone has downloaded the update and is rebooting into the recovery I get the following error:
https://ibb.co/hq5hPS
Is this error normal, beacuse I unlocked the Bootloader of the device and the updater will just be blocked by Huawei or am I doing something wrong?
Is the another methode to update the device?
Thanks for your help
Edit: Image is not displayed, I added the link
Click to expand...
Click to collapse
Its because of twrp and root. You need flashable zip.

g_oral said:
Its because of twrp and root. You need flashable zip.
Click to expand...
Click to collapse
Will flashing the new firmare result in a factory resett?

Benwohlio said:
Will flashing the new firmare result in a factory resett?
Click to expand...
Click to collapse
You need a zip prepared for twrp flash. I don't think there is any available

It might have changed since I did this the last time (a couple of years ago), but
When running stock firmware, and rooted, I never ever ever applied official updates.
It was doomed to fail. Then.
Today it might be different...?
- I recommend a Return To Stock, by flashing stock firmware. And yes, that will wipe all things on your device.
This is why one always uses backups such as Google Sync etc.
Best of luck m8
Peace ✌??

Related

odin flash failed (lollipop on n915F)

i have upgraded my note edge (n915F) via OTA to lollipop last night.
today i came to root it and odin failed.
i did the CF-Auto-Root-tblte-tbltexx-smn915f file and now i am screwed.
is there a recovery that will fix this?
cylent said:
i have upgraded my note edge (n915F) via OTA to lollipop last night.
today i came to root it and odin failed.
i did the CF-Auto-Root-tblte-tbltexx-smn915f file and now i am screwed.
is there a recovery that will fix this?
Click to expand...
Click to collapse
Download and reflash your firmware from sammobile.com, then flash this through odin.
http://forum.xda-developers.com/attachment.php?attachmentid=3037310&d=1417138979
cylent said:
i have upgraded my note edge (n915F) via OTA to lollipop last night.
today i came to root it and odin failed.
i did the CF-Auto-Root-tblte-tbltexx-smn915f file and now i am screwed.
is there a recovery that will fix this?
Click to expand...
Click to collapse
See post above, when flashing the CWM flash this SUperSU Update Zip to get root! It`s much more easier and safer....
cylent said:
i have upgraded my note edge (n915F) via OTA to lollipop last night.
today i came to root it and odin failed.
i did the CF-Auto-Root-tblte-tbltexx-smn915f file and now i am screwed.
is there a recovery that will fix this?
Click to expand...
Click to collapse
No problem. Just flash cwm recovery with odin after you reboot into download mode and your phone will reboot fine
Sent from my SM-N915F using XDA Free mobile app
same happened to me and my phone stacked on Samsung logo ,, I downloaded and flushed stock rom from sammobile then I rooted with same post n. #
This happened because CF-Auto-Root-tblte-tbltexx-smn915f don't work with Lolipop
myaslioglu said:
No problem. Just flash cwm recovery with odin after you reboot into download mode and your phone will reboot fine
Sent from my SM-N915F using XDA Free mobile app
Click to expand...
Click to collapse
thanks. that did it.
Hello guys.
I use a n915fy with lollipop 5.0.1 stock rom
i flash the
n915f-cwm-recovery-6.0.5.1(1128).tar
with odin 3.0.9 and odin says PASS and all fine.
After the restart i will go in the recovery but
i have only the stock recovery
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I can flash the supersu but i have no root or supersu on my phone

Downgrade and OTA update risks on osprey

Hi everyone. There are discussion spread on multiple posts about the problems we should have on downgrading from Marshmallow OTA updated. I created this thread in a attempt to centralize this.
Sounds like the previous Moto Gs (2013, 2014) users get a bricked phone when attempting to downgrade from OTA update to factory firmware and re-update it with OTA update again... This is related to the bootloader being modified by the OTA update. Because of this the recommendation for this devices is not to update their phones using OTA update if they want to downgrade someday.
Well, there are some successful reports from osprey (Moto G 2015) users doing this. Users like @drico_649 and @yea55 successful downgraded their phones.
I'm stuck on unlocked bootloader after a failed attempt to root Marshmallow. So, I need to downgrade my OTA updated to Marshmallow.
The obvious way is flash the factory firmware with fastboot and re-update to OTA Marshmallow but this is considered risky.
What are my alternatives?
Ok, I successfully flashed the factory firmware. Working normally!
But I got a unusual message:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
It's portuguese:
Uninstall firmware service sensors Motorola
This will revert firmware to the previous version
! Select uninstall to reboot the phone.
Options: later and uninstall
That is this? I did not answer this.
So you can successfully downgrade the bootloader on your device? or did you skip gpt.bin and bootloader.img
The only thing people need to skip is gpt.bin
Yousvel said:
The only thing people need to skip is gpt.bin
Click to expand...
Click to collapse
i swear the bootloader was thing you wernt meant to downgrade? and what happens if you do flash gpt.bin ?
therealduff1 said:
i swear the bootloader was thing you wernt meant to downgrade? and what happens if you do flash gpt.bin ?
Click to expand...
Click to collapse
If you flash gpt.bin, it will just fail, but it shouldn't cause anything. But for the bootloader, it will be downgraded with no problem at all.
Yousvel said:
If you flash gpt.bin, it will just fail, but it shouldn't cause anything. But for the bootloader, it will be downgraded with no problem at all.
Click to expand...
Click to collapse
So if i were to downgrade my phone via fastboot to lollipop, then upgrade again though ota, it would all be fine ?
therealduff1 said:
So if i were to downgrade my phone via fastboot to lollipop, then upgrade again though ota, it would all be fine ?
Click to expand...
Click to collapse
It's no safe to accept ota after downgrading

Device has failed verification, after changing oem

My original ROM is NXT-L29C432B320
I installed Nougat AL10, but wanted to get back, so I changed it to NXT-AL10C00B321
It was working well, till I changed it the oem, to install NXT-L29C432B521
Now
I have NXT-C00B380 ROM that is working.
Unlocked bootloader, unlocked FRP
No root
Device has failed verification
Any fastboot command doesn't work. FAILED (Remote: Command not allowed)
How can I go back to my original ROM?
Or
How to root it again without TWRP?
MohamedElSadany said:
My original ROM is NXT-L29C432B320
I installed Nougat AL10, but wanted to get back, so I changed it to NXT-AL10C00B321
It was working well, till I changed it the oem, to install NXT-L29C432B521
Now
I have NXT-C00B380 ROM that is working.
Unlocked bootloader, unlocked FRP
No root
Device has failed verification
Any fastboot command doesn't work. FAILED (Remote: Command not allowed)
How can I go back to my original ROM?
Or
How to root it again without TWRP?
Click to expand...
Click to collapse
Try to dload B180 or B200 from there you can decide want to upgrade to EMUI 4.1 or EMUI 5 or else maintain EMUI 4.
Good luck.
Unlock the bootloader again even if it say unlocked.
dexz said:
Try to dload B180 or B200 from there you can decide want to upgrade to EMUI 4.1 or EMUI 5 or else maintain EMUI 4.
Good luck.
Click to expand...
Click to collapse
I tried many ROMs with no luck.
Everytime update stops at 5%
Thanks
gm007 said:
Unlock the bootloader again even if it say unlocked.
Click to expand...
Click to collapse
Thanks.
It worked as a charm
And i've got TWRP again.
MohamedElSadany said:
My original ROM is NXT-L29C432B320
I installed Nougat AL10, but wanted to get back, so I changed it to NXT-AL10C00B321
It was working well, till I changed it the oem, to install NXT-L29C432B521
Now
I have NXT-C00B380 ROM that is working.
Unlocked bootloader, unlocked FRP
No root
Device has failed verification
Any fastboot command doesn't work. FAILED (Remote: Command not allowed)
How can I go back to my original ROM?
Or
How to root it again without TWRP?
Click to expand...
Click to collapse
What about your phone model?
NXT-L09, NXT-L29, NXT-AL10, NXT-CL00, NXT-DL00 or NXT-TL00
Mentioned on back of your phone like this image:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

Failed to flash Stock ROM

hey. can someone please help me with my problem? i have a huawei honor 6x (BLN-L21C432B368 is the latest firmware).
i tried to flash it with dload method, with fastboot method.. none of them did work.
then i flashed twrp and booted into it.. it said "Failed to mount /vendor (invalid argument)" and "Failed to mount /product (invalid argument)".
I used several stock ROM's but none of them did work.
i dont know what to do now.
plz help
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I think you need to have stock recovery.
Bwhisper said:
I think you need to have stock recovery.
Click to expand...
Click to collapse
i tried that many times, it doesnt work.
Stock recovery wont help. Dload just take anything.
you may have flashed any custom ROM I guess? How about trying with B360 version and see the behavior via dload. If you need the files for it, there is one in my signature, 1st link. capture couple of files from it and proceed with dload.
shashank1320 said:
Stock recovery wont help. Dload just take anything.
you may have flashed any custom ROM I guess? How about trying with B360 version and see the behavior via dload. If you need the files for it, there is one in my signature, 1st link. capture couple of files from it and proceed with dload.
Click to expand...
Click to collapse
Yes, i flashed LineageOS, but then i decided to go back to Stock. I tried with the B360 version but it doesnt help...
stefan1337 said:
Yes, i flashed LineageOS, but then i decided to go back to Stock. I tried with the B360 version but it doesnt help...
Click to expand...
Click to collapse
Do you have stock recovery or TWRP now? You may need to flash srock recovery, stock boot, stock cust.img and stock vendor.img via fastboot.

Root OP 7 Pro on Android11

Hi everyone,
I've updated my OP 7 Pro (GM1910) to android 11, without knowing it will supress TWRP etc...
I've tried a few times de boot.img flash method in order to root my OP7 pro on A11 (with different boot.img, global, Eu with the magisk canary method and also with boot.img that i found on this forum) but it has failed every time (stuck at booting). I flash again the original boot.img and it works fine but impossible to make it work with the magisk boot.img.
Do you have any idea to make it work, till TWRP be compatible with A11?
Firekyss said:
Hi everyone,
I've updated my OP 7 Pro (GM1910) to android 11, without knowing it will supress TWRP etc...
I've tried a few times de boot.img flash method in order to root my OP7 pro on A11 (with different boot.img, global, Eu with the magisk canary method and also with boot.img that i found on this forum) but it has failed every time (stuck at booting). I flash again the original boot.img and it works fine but impossible to make it work with the magisk boot.img.
Do you have any idea to make it work, till TWRP be compatible with A11?
Click to expand...
Click to collapse
solution was factory reset...
Firekyss said:
solution was factory reset...
Click to expand...
Click to collapse
Factory reset put you back on Android 10?
technocrat7 said:
Factory reset put you back on Android 10?
Click to expand...
Click to collapse
No,
In fact i've downloaded a rolllback zip file in order to go back to android 10 (rollback process wipe all data) , then i've updated again to android 11 then i made the boot.im rooting method and it worked.
Maybe a factory reset in android 11 could be enough with the problem i had.
Make sure the magisk patched boot.im flashing method dont work before wiping all your data, otherwise it is sad
So how do I safely update my Oneplus7 Pro to Android 11 with root?
I have a update waiting to download. Oxygen OS 11.0.0.2.GM21AA.
There are not a lot of videos out there on how to go about upgrading to OS11?
I know twrp recovery doesn't currently work.
I would like some help I don't want to ruin my phone.
Thank you.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Here is the solution !
[ROM][Android 12L][OP7Pro] crDroid v8.12 [19.12.2022]
Does anyone have the magisk download links from the third post? They're not showing up on the new website.
forum.xda-developers.com

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