Error mounting data and cache - Asus Transformer TF701

Hello Everyone
I have run into an odd problem. My tf701 ran out of power while I was watching netflix on it. After that it got stuck on boot. When I tried to fiddle using CWM I found out that I cannot mount data or cache. Further more I get to see 5 lines of "E: can't mount /recovery/*" where * are folders within /recovery/ . I tried to format system using CWM or fastboot, they both say they succeed but when I reboot I still get my bootanimation. At this I am out of ideas as to how I can fix it. Furthermore thanks to being unlocked I lost my warranty .
Any suggestions as to how I can fix it?

devbro said:
Hello Everyone
I have run into an odd problem. My tf701 ran out of power while I was watching netflix on it. After that it got stuck on boot. When I tried to fiddle using CWM I found out that I cannot mount data or cache. Further more I get to see 5 lines of "E: can't mount /recovery/*" where * are folders within /recovery/ . I tried to format system using CWM or fastboot, they both say they succeed but when I reboot I still get my bootanimation. At this I am out of ideas as to how I can fix it. Furthermore thanks to being unlocked I lost my warranty .
Any suggestions as to how I can fix it?
Click to expand...
Click to collapse
Maybe I saw something like this I dont know. Did you try mounting system first and see if that fixes it? I have no idea.
EDIT: from CWM I mean. I had a situtation where some things would not mount. data being one of them.. Not sure what else. Then I just mounted /system and everything was ok. Could it be that for some reason system is not getting mounted and you not formatting it besides an empty directory.

YayYouFixedIt said:
Maybe I saw something like this I dont know. Did you try mounting system first and see if that fixes it? I have no idea.
EDIT: from CWM I mean.
Click to expand...
Click to collapse
Yes I tried no luck. When I try to format /data using fastboot it simply hangs both the device and the terminal too.

devbro said:
Yes I tried no luck. When I try to format /data using fastboot it simply hangs both the device and the terminal too.
Click to expand...
Click to collapse
some corruption seems to have occurred.
perform a hard reset in the 'stock' recovery (this will format /data).
then boot in and re-setup. any userdata you had will be gone (including media/content stored locally, etc.).
in case of /system corruption (after performing the above; you still cannot boot in), you can format that partition separately and re-flash it from the CWM file for the latest posted stock update.
you can find file(s) on droidbasement, as needed.

I belive I have the same probleme, how i could i do it right?

devbro said:
Yes I tried no luck. When I try to format /data using fastboot it simply hangs both the device and the terminal too.
Click to expand...
Click to collapse
How did you try to format data in fastboot??
That's done in recovery afaik.
nero0345 said:
I belive I have the same probleme, how i could i do it right?
Click to expand...
Click to collapse
What problem do you have? /data not mounting? Format it in recovery but you will loose everything stored on your internal SD.

I finally took my tablet in for a check with asus. They said that I ahve corrupted my boot and since I replace the recovery there is no way to fix it. the only way to fix it is to replace the motherboard at this point. It will cost 190$ to replace!!!!

Just as an update to the future readers. I ended up replacing my logic board inside using one that I got from ebay. My tablet now works just as new. As per advice of the Asus tech, DO NOT FLASH a new recovery. If anything goes wrong the original asus recovery is the only way to fix things.

devbro said:
Just as an update to the future readers. I ended up replacing my logic board inside using one that I got from ebay. My tablet now works just as new. As per advice of the Asus tech, DO NOT FLASH a new recovery. If anything goes wrong the original asus recovery is the only way to fix things.
Click to expand...
Click to collapse
I beg to differ....
The stock recovery can only flash firmware signed by Asus and perform some crude wipe operations.
With a custom recovery you have way more tools at hand to fix problems:
You can wipe or format partitions selectively
You can take nandroids and restore them
You can check the integrity of file systems on partitions
You can fix permissions
You can flash SuperSU, custom roms and more
Some have a build in file manager allowing you to move data off the tablet even if it doesn't boot anymore
Some have a build in terminal you can run commands from.
The list goes on...
But sure - you have to do all of the above including flashing the custom recovery correctly or you can seriously damage your device like you did.
I am really sorry that you lost your mainboard and had to buy a new one, but don't kid yourself: It was not the custom recovery damaging your tablet. It was you...

berndblb said:
I beg to differ....
The stock recovery can only flash firmware signed by Asus and perform some crude wipe operations.
With a custom recovery you have way more tools at hand to fix problems:
You can wipe or format partitions selectively
You can take nandroids and restore them
You can check the integrity of file systems on partitions
You can fix permissions
You can flash SuperSU, custom roms and more
Some have a build in file manager allowing you to move data off the tablet even if it doesn't boot anymore
Some have a build in terminal you can run commands from.
The list goes on...
But sure - you have to do all of the above including flashing the custom recovery correctly or you can seriously damage your device like you did.
I am really sorry that you lost your mainboard and had to buy a new one, but don't kid yourself: It was not the custom recovery damaging your tablet. It was you...
Click to expand...
Click to collapse
When I talked to the tech at their center, there is apparently some special actions that only their recovery can do. These actions are those that allow changing boot table and other low level functions of the tablet which has nothing to do with the built-in memory or system files.
If I did not replace the recovery, then the repair by asus would have only cost 40$.

Related

Flash w/out sdcard?

May have been asked before, but I tried searching and didnt find much luck.
I think my SDCard slot finally gave up, it just will not be read (tried two different 8gb cards that both worked fine on the computer). On Cyan 4.2.9.1.
Anyway, is there a way to flash the phone without the sdcard? I was trying to think how that would be possible, but I think its not right?
Just looking for a quick def. answer so I can know if i need to go phone hunting . Or do something different , which would be much better.
Appreciate it .
Happy holidays btw
You should be able to using ADB, not sure the command lines for that. As well, you might want to try getting a can-o-air and blowing out the SD card slot on your phone.
Lastly, this is the wrong section, should of been posted in Q&A.
pjcforpres said:
You should be able to using ADB, not sure the command lines for that. As well, you might want to try getting a can-o-air and blowing out the SD card slot on your phone.
Lastly, this is the wrong section, should of been posted in Q&A.
Click to expand...
Click to collapse
I didnt really think of adb, yeah that might work. Maybe someone knows them?
Maybe
adb shell recovery flash location/zip ?
Tried the canned air, didnt change. Good thinking though.
And lastly, I did debate which place, but I was thinking I saw a utility here or I am looking for the command lines and thought maybe alittle more technical than a general question? It will fall shortly anyway (hopefully after the commands ) or get moved/deleted.
If someone nandroided, they could just send you their system.img and you could fastboot it onto the phone. Provided you have the engineering/danger SPL.
persiansown said:
If someone nandroided, they could just send you their system.img and you could fastboot it onto the phone. Provided you have the engineering/danger SPL.
Click to expand...
Click to collapse
Thats a pain, and I dont think there are many of those out there...
No adb commands? Ive been searching but it seems scarce
EDIT:
Ok I tried my idea anyway,
adb shell recovery flash update.zip
And it just hangs (no errors though)...probably missing something?
Are you able to warranty your phone for the bad SDCard Reader??
If so, I started this thread and came up with an answer, but it will bring you back to fully stock cupcake
http://forum.xda-developers.com/showthread.php?t=560254
Search for a webpage , how to root/flash/hack g1. It's has everything you need.
You need to go into fastboot
Fastboot update update.zip. somthing like that or do like the website shows 1 at a time.
There might be an adb for it, but I've never used it. Fastboot only option I believe.
bildo said:
Search for a webpage , how to root/flash/hack g1. It's has everything you need.
You need to go into fastboot
Fastboot update update.zip. somthing like that or do like the website shows 1 at a time.
There might be an adb for it, but I've never used it. Fastboot only option I believe.
Click to expand...
Click to collapse
That is the better answer, thanks for continuing. If you just left that first sentence I would have said re-read my problem, I cannot use my sdcard (the normal way rom is flashed).
As for the fastboot, I will look into that. I appreciate it, thanks.
Im getting
No android-info.txt
No android-product.txt
In the package when i try to do this command while in fastboot:
fastboot update update.zip
I found android-info in the update file from htc, but I cannot resign right now. Im also guessing it will still yell about the android-product.txt anyway, so any ideas where to get that file?
If all you're trying to do is flash a .img (system.img, userdata.img, recovery.img) and you have a developer, or hardspl, you can flash using fastboot.
Code:
fastboot flash recovery recovery.img
fastboot flash system system.img
fastboot flash userdata userdata.img
flashing an update.zip is only possible through recovery mode, but can still be accomplished using the /cache partition
Code:
adb push update.zip /cache
and you should be able to do the update from cache.
haykuro said:
flashing an update.zip is only possible through recovery mode, but can still be accomplished using the /cache partition
Code:
adb push update.zip /cache
and you should be able to do the update from cache.
Click to expand...
Click to collapse
Using you're SPL, is it still possible to place an update.zip into /cache with the partition table having been re-written??''
I'm assuming yes, since you jumped in and posted that method, I was just curious
jackslim said:
Using you're SPL, is it still possible to place an update.zip into /cache with the partition table having been re-written??''
I'm assuming yes, since you jumped in and posted that method, I was just curious
Click to expand...
Click to collapse
Well you're cache partition should have 30720K (about 30MB)
the last cyanogen rom was 37 MB =[
my other recommendation for you is to push the updates to your sdcard through your phone. (just re-read your post and noticed the SD card is functional in your phone)
Code:
adb push update.zip /sdcard/update.zip
then just proceed as usual.
@theslam08
Your signature say's your using the "Danger SPL" Judging by that you could reflash your spl from fastboot to the hard spl
Code:
fastboot flash hboot spl.bin
Then use the method described above by Haykuro pushing updates to /cache with adb
Thanks for the responses guys .
As for pushing to sdcard while in phone, thats where the problem remains. The sd reader IN the phone is busted it would seem as it just says no sd card found (cannot mount) with 3 different cards I tried (all working on the computer).
Ok so if I flash back the spl will I have more than 40mb free on the cache partition? Because yeh, the most recent update from CM is ~40mb, so it wont fit currently.
ANd once pushed to /cache, how would I go about doing the actual update? You said "you should be able to do the update from the cache part.), not sure how, just give the location?
console: flash update /cache/update.zip ?
Thank you.
theslam08 said:
Thanks for the responses guys .
As for pushing to sdcard while in phone, thats where the problem remains. The sd reader IN the phone is busted it would seem as it just says no sd card found (cannot mount) with 3 different cards I tried (all working on the computer).
Ok so if I flash back the spl will I have more than 40mb free on the cache partition? Because yeh, the most recent update from CM is ~40mb, so it wont fit currently.
ANd once pushed to /cache, how would I go about doing the actual update? You said "you should be able to do the update from the cache part.), not sure how, just give the location?
console: flash update /cache/update.zip ?
Thank you.
Click to expand...
Click to collapse
i forgot the exact command to force a boot-recovery and have it flash through cache (the traditional method)
but if your on cyanogen's recovery you can do
Code:
adb shell mount -t yaffs2 /dev/block/mtdblock4 /sdcard
this should mount cache into /sdcard, allowing you to flash.
haykuro said:
i forgot the exact command to force a boot-recovery and have it flash through cache (the traditional method)
but if your on cyanogen's recovery you can do
Code:
adb shell mount -t yaffs2 /dev/block/mtdblock4 /sdcard
this should mount cache into /sdcard, allowing you to flash.
Click to expand...
Click to collapse
Excellent, that seemed to be the trick (after going back to HSPL because yeah, I didnt have enough room with haykuro's). Though some bugs with that.
I got it to copy once after making that partition mount, and I was able to see the update file. I updated, and everything went well (even though I wondered how in the middle of the update it says formatting cache, yet it still worked).
Now, I went to put on a theme file and it says out of room. I hit 'update from sdcard' in recovery and it says E: No zip files found or something like that, just no files. So if it gets 'wiped' how is there no space? Is there a manual format I should do?
And I dont think this has happened to anyone yet, so thanks for going through this , im sure others down the road will find it helpful.
Not to get off-topic or picky about anything, but having the phone without an SD card being able to be read seems kind of pointless.
After all, you won't be able to run A2SD, or move the cache. The phone's going to run as if it was "stock."
akapoor said:
Not to get off-topic or picky about anything, but having the phone without an SD card being able to be read seems kind of pointless.
After all, you won't be able to run A2SD, or move the cache. The phone's going to run as if it was "stock."
Click to expand...
Click to collapse
Not being blunt but, thats the point. I have 'no' other choice right now, I cannot get a new phone for a while (and warranty is over, its a yr and 3 months since pur)
I obviously know I cannot use A2SD, so I need to get it to run 'stock', and thats proving to be a trick (stock but not). I almost have it, but cache doesnt seem to wipe on its own, which is the new problem. Once that is cleared, then I should be all set .
theslam08 said:
Not being blunt but, thats the point. I have 'no' other choice right now, I cannot get a new phone for a while (and warranty is over, its a yr and 3 months since pur)
I obviously know I cannot use A2SD, so I need to get it to run 'stock', and thats proving to be a trick (stock but not). I almost have it, but cache doesnt seem to wipe on its own, which is the new problem. Once that is cleared, then I should be all set .
Click to expand...
Click to collapse
Ah, okay - now it makes sense. I didn't understand the purpose at first.

After installing aroma guestekrnL phone only boots to CWM

Hello
I've tried installing guestekrnL on WIUI. When installing guestekrnL, the only thing I've ticked extra that was other than defaults was:
"Activate init.d functionality and convert file system to EXT4?
- yes
select if init.d is not working yet or if you don't know"
Well, after reboot WIUI was screaming that my sd card is broken and format may help. It formatted it, but it still didn't work. So I've rebooted to recovery via option in power dialog in order to restore old firmware. However there's a problem now: CWM Touch says that it can't write logs to /cache. Mounting /cache, /data or /emmc from recovery doesn't work, only /system and /sdcard are mounting correctly. I've tried BackToExt3 with no luck. I've tried wiping it many times, with no luck. My phone only boots now to CWM. I can't flash stock via APX mode, because I have broken USB port in my phone. What can I do?
Does restoring a backup, flashing a zip file or wiping work?
Ok, I was searching for almost whole hour now and it seems it's a problem with partition table. Fixing can be done via zip, but I need some dumps. First one from "cat /proc/mounts" and second from "parted".
Here's the zip for nook color if someone wants to do that for me: http://forum.xda-developers.com/showthread.php?t=1759558
exinepl said:
Ok, I was searching for almost whole hour now and it seems it's a problem with partition table. Fixing can be done via zip, but I need some dumps. First one from "cat /proc/mounts" and second from "parted".
Here's the zip for nook color if someone wants to do that for me: http://forum.xda-developers.com/showthread.php?t=1759558
Click to expand...
Click to collapse
the Touch CWM might be the issue......most of the times it is found as the source of some unknown issues for some or intermittent issues.
I use the non-touch one always
Hope it helps
Well, how do I flash new recovery from CWM using zip then?
exinepl said:
Well, how do I flash new recovery from CWM using zip then?
Click to expand...
Click to collapse
check for the CWM thread by Rusty....you have the instructions and process in it.
THERE YOU GO>>>SEE HERE
Hope it helps
Unfortunately, it needs USB. I need to flash it via existing recovery.
Mounting problems occur on some zips using touch recovery . Change cwm to non touch 5.0.2.8. But hey, did you flash a stock kernel on wiui ? you need another kernel, like etana, symbiosis.....or just use the one shipped with rom

TWRP shows strange folder names (crypted?!)

hi,
I bought a new Huawei P10 lite phone, unlocked the bootloader, installed TWRP and with this I installed SuperSU via microSD card.
Everything worked fine, until now. Now I want to backup my current modified stock ROM, but TWRP failes.
I got the problem very fast: TWRP can read all files and folders on the microSD car, but not in the internal storage folder.
The file structure is like the following:
acct
boot
cache
config
data
...
etc
external_sd <-- the microSD card
mnt
...
sbin
sdcard
storage
...
Click to expand...
Click to collapse
Everything can be read by TWRP, except the sdcard folder.
Here he only shows strange names (crypted I guess):
something like:
2h8P9lGY8I1A884LMsBjaA
2u+nb0LdBNopRSa5LehsvB
75aTrCvYkWG+R+lrcRz6WA
DcwYkwSKokq8Rm5lYc4YYC
...
Click to expand...
Click to collapse
This strange folders occure within TWRP itself and also if I mount the storage to the computer via TWRP.
I also can not modify, delete or add anything in this cryted folder.
So what am I doing wrong? Why is this crypted and can not be read?
During my research I found this post on reddit with the same problem. But the solution is not clear to me and also not working.
Thanks for any help
greetings
Christopher
PS.: Here some specific information about the phone:
brand new Huawei P10 lite
model WAS-LX1A
build nr. WAS-LX1AC432B102
no updates avaible, checked twice
EMUI 5.1 with Android 7.0
TWRP v3.1.0-2 from here (named "TWRP_P10_Lite_Beta.img")
Hey
It's because your files are encrypted due to forceecnryption and dm-varity in the kernel you can try formating the data to see if it removes the encryption from the data.
My infos may not be correct you can read more about dm-varity and forceecnryption in the internet
aburezk said:
Hey
It's because your files are encrypted due to forceecnryption and dm-varity in the kernel you can try formating the data to see if it removes the encryption from the data.
My infos may not be correct you can read more about dm-varity and forceecnryption in the internet
Click to expand...
Click to collapse
Ok, thanks a lot. This was helful so far.
From what I read, I now must flash a new "boot.img" in order to disable force encryption. But where do I get such a file for my Huawei P10 lite (WAS-LX1A)? I did not found one. Maybe the phone is too new? Or am I just blind?
greetings
christopher2007 said:
Ok, thanks a lot. This was helful so far.
From what I read, I now must flash a new "boot.img" in order to disable force encryption. But where do I get such a file for my Huawei P10 lite (WAS-LX1A)? I did not found one. Maybe the phone is too new? Or am I just blind?
greetings
Click to expand...
Click to collapse
you can't find it anywhere
aburezk said:
you can't find it anywhere
Click to expand...
Click to collapse
Ok, so too new ... damn. That is very bad.
christopher2007 said:
Ok, so too new ... damn. That is very bad.
Click to expand...
Click to collapse
I managed to disable force encryption on my device
Download this and flash it
Backup your data and wipe data from twrp
https://build.nethunter.com/android-tools/no-verity-opt-encrypt/
I tryed no-verity-opt-encrypt-6.0.zip but now do not start anymore... I have restore boot and system but none... what can I do? I think i will sell this p10 lite...
simona70 said:
I tryed no-verity-opt-encrypt-6.0.zip but now do not start anymore... I have restore boot and system but none... what can I do? I think i will sell this p10 lite...
Click to expand...
Click to collapse
i had the same issue by using no-verity-opt-encrypt-6.0.zip. The phone was brick after that.
Do you know your Build of your Phone ? If yes you can download the right Update.app from Huawei and extract the BOOT.IMG, RECOVERY.IMG and the SYSTEM.IMG (Maybe CUST.IMG) and restore it in the fastboot Mode. After that it started again to the UI.
If you dont know the Build of your Phone there will be some Fastboot oem commands to get it (i dont have them in my mind right now).
I flashed the ZIPs in TWRP after that with an external SD card witch arent crypted names...
ChipCollector said:
i had the same issue by using no-verity-opt-encrypt-6.0.zip. The phone was brick after that.
Do you know your Build of your Phone ? If yes you can download the right Update.app from Huawei and extract the BOOT.IMG, RECOVERY.IMG and the SYSTEM.IMG (Maybe CUST.IMG) and restore it in the fastboot Mode. After that it started again to the UI.
If you dont know the Build of your Phone there will be some Fastboot oem commands to get it (i dont have them in my mind right now).
I flashed the ZIPs in TWRP after that with an external SD card witch arent crypted names...
Click to expand...
Click to collapse
I solved using "update_data_full_public.zip" and clearing /data, after restoring previuos boot.img and system.img .
My phone was WAS-LX1AC432B102 4gb EMUI5.1 Android 7.0. I had bricked before and the only way to unbrick was to use "Warsaw-L21_C432B182_EU_SERVICE_androidhost.ru"
I do not trust to install data into a phone i can't backup and restore with TWRP... there is another way to make /data not crypted?
Exist the hope one day TWRP read also crypted /data or it is better search another phone?
ChipCollector said:
i had the same issue by using no-verity-opt-encrypt-6.0.zip. The phone was brick after that.
Do you know your Build of your Phone ? If yes you can download the right Update.app from Huawei and extract the BOOT.IMG, RECOVERY.IMG and the SYSTEM.IMG (Maybe CUST.IMG) and restore it in the fastboot Mode. After that it started again to the UI.
If you dont know the Build of your Phone there will be some Fastboot oem commands to get it (i dont have them in my mind right now).
I flashed the ZIPs in TWRP after that with an external SD card witch arent crypted names...
Click to expand...
Click to collapse
Hey, I am having the exact same problem, my phone is soft bricked after no-verity-opt-encrypt-6.0.zip. (https://forum.xda-developers.com/p10/help/stuck-device-booting-flashing-rom-t3713503).
I know the build of my phone, and I downloaded the update.app and extracted it to boot.img, recovery.img, system.img, but how exactly can I restore it in the fastboot mode. What commands?
fastboot flash system system.img
fastboot flash boot boot.img
fastboot flash recovery recovery.img
---------- Post added at 04:35 PM ---------- Previous post was at 04:32 PM ----------
Anymore I think P10lite is a lost cause. I sell to my mother. I bought a xiaomi redmi note 4 global. Never again a Huawei. What a disappointment.
You'll sale your phone to your? Mother? To your mother?
Anyway the same story is on redmi note and all xiaomi
Phones
All the Chinese are difficult to modify.
I was have all Nexus thru 2011 very easy phones but the Chinese... My...
I have a doubt, I have bundled it when trying to install root on my device and I ended up in bootloop what I did was install a (official) rom which when entering the internal files, the folders were with strange names appear, so you recommend removing the credentials (decrypt), to be able to install root? My Device is Xiaomi mi A2
Bro did you find a solution..I am having same problem help
Had my phone bricked two days ago after a failed Motorola system update. Decided do ditch it and go with LineageOS, wich I got working after a few failed install attempts. When I tried to acess my internal storage, I had only those randomly named folders. Deleted them all, but couldn´t write to my storage after. Even tried a camera app, and it said that couldn´t work without a sdcard.
SOLUTION: boot recovery on TWRP > Wipe > Advanced Wipe> select ONLY internal storage > swipe to wipe :good:
Rebooted after internal storage wipe and everything is fine now. It seems all the install attempts made some sort of mess.
chimeralounge said:
Had my phone bricked two days ago after a failed Motorola system update. Decided do ditch it and go with LineageOS, wich I got working after a few failed install attempts. When I tried to acess my internal storage, I had only those randomly named folders. Deleted them all, but couldn´t write to my storage after. Even tried a camera app, and it said that couldn´t work without a sdcard.
SOLUTION: boot recovery on TWRP > Wipe > Advanced Wipe> select ONLY internal storage > swipe to wipe :good:
Rebooted after internal storage wipe and everything is fine now. It seems all the install attempts made some sort of mess.
Click to expand...
Click to collapse
Legend. This fixed the same issue we were facing on the t510 Samsung tablet. Saved us a lot of trouble. Thanks for this.
memz180 said:
Legend. This fixed the same issue we were facing on the t510 Samsung tablet. Saved us a lot of trouble. Thanks for this.
Click to expand...
Click to collapse
-----------
Cool, glad to help! In fact, this issue happened to me once again a few weeks back, when LegacyOS updated. I had this "f*** here we go again" moment, but before wiping, I decided to use TWRP > Advanced > Fix Content. Not only I got the system working again, but *all my data was intact*. System updates are messing file tables, apparently.
I want to marry TWRP.
chimeralounge said:
Had my phone bricked two days ago after a failed Motorola system update. Decided do ditch it and go with LineageOS, wich I got working after a few failed install attempts. When I tried to acess my internal storage, I had only those randomly named folders. Deleted them all, but couldn´t write to my storage after. Even tried a camera app, and it said that couldn´t work without a sdcard.
SOLUTION: boot recovery on TWRP > Wipe > Advanced Wipe> select ONLY internal storage > swipe to wipe :good:
Rebooted after internal storage wipe and everything is fine now. It seems all the install attempts made some sort of mess.
Click to expand...
Click to collapse
God bless you! i've struggle with this s]+t for hours!
what worked for me is installing siankatabg-twrp , now i can see names fine
after that i changed back to official version (which was missy before) and still fine !!!!!!!!
then installed orange fox (which was missy before) and still fine !!!!!!!!
WTH !!!!!!!!!!!!
so i think best shot (if u dont have siankatabg-twrp) is installing codeworkx (Lineage recovery) make sure all good then go back to ur favorite.
lemme know if its works

I might need some assistance. (EVA-L19)

After unlocking the bootloader, installing TWRP recovery and rooting my phone with SuperSU (v2.82), I was preparing to install a custom ROM (more specifically the Resurrection Remix 7.1.2.) all in all, things ended up going out of hand and I accidentally deleted my internal storage, losing every single bit of my existing ROM, not to mention the RR ROM file as well. Now when I try to wipe, I can't, it usually says "Failed to mount '/data' (Device or resource busy) and "Unable to mount storage".
I tried using ADB sideload but to no success, only the same message. What I can understand is that the previous data is gone, I tried changing the format of data, system and cache to FAT & exFAT but it still did not resolve my issue.
I'm out of options here, I don't want to have to give up this phone because of my stupidity.
I also tried flashing the LineageOS 14.1 ROM to see if anything was different, here is what it said:
Installing zip file '/sideload.package.zip'
Target: HUAWEI/EVA-L09/HWEVA:7.0/HUAWEIEVA-L09/C432B361:user/release-keys
detected filesystem ext4 for /dev/block/bootdevice/by-name/system
detected filesystem exfat for /dev/block/bootdevice/by-name/userdata
mount: failed to mount /dev/block/bootdevice/by-name/userdata at /data: Device or resource busy
unmount of /data failed; no such volume
Patching system image unconditionally...
detected filesystem ext4 for /dev/block/bootdevice/by-name/system
Script succeeded: result was [1.000000]
Although it said succeeded it clearly did not work and I am sitting without a ROM. I'm not smart when it comes to these things please help a guy out.
(Is there a way to going back to completely stock EMUI 5.0?)
Cheers.
EMUI 5.01 requires encryption, which you obviously removed.
Search for DC Unlocker, it can probably fix it for 25 Euros
zgfg said:
EMUI 5.01 requires encryption, which you obviously removed.
Search for DC Unlocker, it can probably fix it for 25 Euros
Click to expand...
Click to collapse
I know this is awkward to ask and all, but how exactly do I go about this, I'm pretty lost and I have minimal experience with this stuff..
I never had to use it but here is their portal (with download info, prices, instructions, etc)
https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial
If you search on XDA or search on Google for eg XDA Huawei DC Unlocker you will find threads with first hands experience (I've seen them several tines but didn't save to Favorites)
zgfg said:
I never had to use it but here is their portal (with download info, prices, instructions, etc)
If you search on XDA or search on Google for eg XDA Huawei DC Unlocker you will find threads with first hands experience (I've seen them several tines but didn't save to Favorites)
Click to expand...
Click to collapse
I'm terribly sorry for being THIS stupid. As I'm looking into this even more, I'm conflicted about the credit amount I need, been scrolling through the list and I can't really find my problem involving firmware I suppose.
People usually buy for 15 Euros. It may help you, Chrome will automatically translate from German
https://www.android-hilfe.de/forum/...-wiederherstellung-mit-dc-phoenix.818669.html
I'm not educated about DC Unlocker but that is NOT neccesary here. You can easily repair the /data partition by flashing the stock recovery via fastboot, formatting data with that stock recovery and then flashing TWRP again. After that TWRP should be able to read the data partition again.
You can easily go back to stock completely and even restore your bootloader by doing a "rollback" to Android 6. (dload method). After that you can normally upgrade from there though EMUI to the latest version of stock.
christopherpfister said:
I'm not educated about DC Unlocker but that is NOT neccesary here. You can easily repair the /data partition by flashing the stock recovery via fastboot, formatting data with that stock recovery and then flashing TWRP again. After that TWRP should be able to read the data partition again.
You can easily go back to stock completely and even restore your bootloader by doing a "rollback" to Android 6. (dload method). After that you can normally upgrade from there though EMUI to the latest version of stock.
Click to expand...
Click to collapse
I've tried using eRecovery to format the data but to no success, I can't even use the touch screen for some reason, (I know about the volume keys, but when it comes to selecting the Wi-Fi, there is no success whatsoever). If you do know a fix for this, could you possibly walk me through this?
Hexagonal said:
I've tried using eRecovery to format the data but to no success, I can't even use the touch screen for some reason, (I know about the volume keys, but when it comes to selecting the Wi-Fi, there is no success whatsoever). If you do know a fix for this, could you possibly walk me through this?
Click to expand...
Click to collapse
UPDATE: I flashed the stock recovery image and it showed me the wipe cache partition and factory data and system reset, I tried both, only the cache one succeeded, the other one failed. I saw a post that directed you to flash boot.img, recovery.img, recovery2.img and then system.img, I did that, but I couldn't boot into my phone - the good thing is however! That I can use my touchscreen in the recovery now.
Obviously the second time booting into EMUI recovery it prompts me to 'Download latest version and recovery', I try to connect to my Wi-Fi, seems okay but then it suddenly fails. More specifically it says 'Getting package info failed'. Save me please :crying:
So this "erecovery" never worked in any way for me (the one which offers you to download the latest version).
Instead you need the normal recovery you already used. Formatting failed for me the first time too, try it again and then it will try to format "low-level" which worked for me.
Go directly into fastboot from that, flash TWRP and go directly into TWRP.
After that should be able to use /data in TWRP. As soon as you are able to start TWRP without any error messages (like "Device busy" or something) go to Wipe and then format data.
Important: check which partition type you have! For EMUI you need "f2fs" and for lineage you need "ext4". You can see and change that in TWRP under Wipe -> "change or repair filesystem".
If you have any more questions, just ask.
christopherpfister said:
So this "erecovery" never worked in any way for me (the one which offers you to download the latest version).
Instead you need the normal recovery you already used. Formatting failed for me the first time too, try it again and then it will try to format "low-level" which worked for me.
Go directly into fastboot from that, flash TWRP and go directly into TWRP.
After that should be able to use /data in TWRP. As soon as you are able to start TWRP without any error messages (like "Device busy" or something) go to Wipe and then format data.
Important: check which partition type you have! For EMUI you need "f2fs" and for lineage you need "ext4". You can see and change that in TWRP under Wipe -> "change or repair filesystem".
If you have any more questions, just ask.
Click to expand...
Click to collapse
So what you're saying is, as soon as I get my data sorted and my partition set to the right one I should be able to install the custom ROM. I could use data and even formatted it, tried installing Lineage but I must've had the storage on the wrong type, now I'm back with the same issue, I'll try to fix it and post my results here. Thank you!
Hexagonal said:
So what you're saying is, as soon as I get my data sorted and my partition set to the right one I should be able to install the custom ROM. I could use data and even formatted it, tried installing Lineage but I must've had the storage on the wrong type, now I'm back with the same issue, I'll try to fix it and post my results here. Thank you!
Click to expand...
Click to collapse
Update: It did NOT work, tried flashing LineageOS through ADB sideload, it was going fine before the bar completely filled up around 50% of the way done, it said 'detected filesystem ext4 for /dev/block/bootdevice/by-name/system' and in the next line it said 'script succeeded: result was [1.000000]'
Help me, I'm begging you, at the moment I don't have an access to a microSD that has the capacity to hold the stock files to do the dload method, therefore this is my only hope.
Hexagonal said:
Update: It did NOT work, tried flashing LineageOS through ADB sideload, it was going fine before the bar completely filled up around 50% of the way done, it said 'detected filesystem ext4 for /dev/block/bootdevice/by-name/system' and in the next line it said 'script succeeded: result was [1.000000]'
Help me, I'm begging you, at the moment I don't have an access to a microSD that has the capacity to hold the stock files to do the dload method, therefore this is my only hope.
Click to expand...
Click to collapse
Whats the error? Why doesn't it work? What happens when you try to boot?
christopherpfister said:
Whats the error? Why doesn't it work? What happens when you try to boot?
Click to expand...
Click to collapse
That's what I'm trying to figure out, when I try to boot in it's just stuck on a boot loop. Unfortunate..
Remember that you have to what *a while* for the first boot. Only if you see no change after 5-8 minutes or so something is definitely wrong.
Have you checked in TWRP if your /data partition is ext4?
christopherpfister said:
Whats the error? Why doesn't it work? What happens when you try to boot?
Click to expand...
Click to collapse
christopherpfister said:
Remember that you have to what *a while* for the first boot. Only if you see no change after 5-8 minutes or so something is definitely wrong.
Have you checked in TWRP if your /data partition is ext4?
Click to expand...
Click to collapse
I know, but it was flashing the Huawei logo and the unlocked bootloader warning continuously. It was set on EXT4 but as I was saying, it said script succeeded at 50%.
Hexagonal said:
'detected filesystem ext4 for /dev/block/bootdevice/by-name/system' and in the next line it said 'script succeeded: result was [1.000000]'
Click to expand...
Click to collapse
That just said that /system partition is ext4. That is default even for stock I believe. You need to check for /data.
christopherpfister said:
That just said that /system partition is ext4. That is default even for stock I believe. You need to check for /data.
Click to expand...
Click to collapse
I deliberately set the data partition to EXT4 before installing
Hexagonal said:
I deliberately set the data partition to EXT4 before installing
Click to expand...
Click to collapse
Can you check in TWRP if it actually says /data is ext4?
Which lineage are you trying to install? Don't you need a vendor.zip for some of them?
/data is indeed on EXT4, and I was installing the one that was on the room section.

zenfone 2 (z00d) not booting

Hello, a few days ago my zenfone started acting up (again), with built in applications crashing randomly and failing to boot half of the times. I always managed to fix it downloading the firmware from Asus' website and re-upgrate it, but this time it didn't worked out quite well. It now refuses to boot (sometimes gets stucked at boot, simetimes I manage to have asus screen). Booting into recovery prints `E:mount fail, change path to mount /dev/block/mmcblk1`, then errors about cache partiton not being found.
I've tried pretty much anything that would not result in data loss:
Wiping cache doesn't report errors, but doesn't help either,
Flashing stock boot.img and droidboot.img don't report error, but doesn't help either,
Flashing TWRP to recovery reports success, but I still get stock recovery,
Sideload fails coz it doesn't find expected mounts
Adb shell doesn't work as it can't find `/system/bin/whatever`
`adb pull /proc/partitions` returns what looks like a legit partitions list for mmcblk0 to me
Does anyone know what else I can try to rescue the data on the phone?
WobLight said:
Hello, a few days ago my zenfone started acting up (again), with built in applications crashing randomly and failing to boot half of the times. I always managed to fix it downloading the firmware from Asus' website and re-upgrate it, but this time it didn't worked out quite well. It now refuses to boot (sometimes gets stucked at boot, simetimes I manage to have asus screen). Booting into recovery prints `E:mount fail, change path to mount /dev/block/mmcblk1`, then errors about cache partiton not being found.
I've tried pretty much anything that would not result in data loss:
Wiping cache doesn't report errors, but doesn't help either,
Flashing stock boot.img and droidboot.img don't report error, but doesn't help either,
Flashing TWRP to recovery reports success, but I still get stock recovery,
Sideload fails coz it doesn't find expected mounts
Adb shell doesn't work as it can't find `/system/bin/whatever`
`adb pull /proc/partitions` returns what looks like a legit partitions list for mmcblk0 to me
Does anyone know what else I can try to rescue the data on the phone?
Click to expand...
Click to collapse
When you flash TWRP and try to boot into recovery, have you tried using adb with "adb reboot" command?
Have you tried the "fastboot boot twrp.img" command"(with the TWRP file renamed to "twrp.img")? If you can get that to work, you can temporarily boot a TWRP session and then use it to make a nandroid backup.
Have you tried creating an adb backup, as described in the link below?
https://forum.xda-developers.com/galaxy-nexus/general/guide-phone-backup-unlock-root-t1420351
If you have corrupted partitions, you might not retrive anything, you might have no choice but to use an option that wipes, repartitions and flashes the device.
Sent from my LGL84VL using Tapatalk
Droidriven said:
When you flash TWRP and try to boot into recovery, have you tried using adb with "adb reboot" command?
Have you tried the "fastboot boot twrp.img" command"(with the TWRP file renamed to "twrp.img")? If you can get that to work, you can temporarily boot a TWRP session and then use it to make a nandroid backup.
Have you tried creating an adb backup, as described in the link below?
https://forum.xda-developers.com/galaxy-nexus/general/guide-phone-backup-unlock-root-t1420351
If you have corrupted partitions, you might not retrive anything, you might have no choice but to use an option that wipes, repartitions and flashes the device.
Sent from my LGL84VL using Tapatalk
Click to expand...
Click to collapse
thanks for suggestions,
adb backup doesn't work. It complains about /system/bin/sh not found (looks like either the partition isn't mounted or the failed update erased it).
fastboot boot doesn't work. I was messing with boot.img before, and I found out that intel's boot.img (my zenfone is x86) is not standard format. fastboot logs `creating boot image...`, I suspect it doesn't work at all for intel's. It reports 'booting OK' but the phone doesn't reboot at all.
fastboot flash recovery twrp.img returns OK but still stock recovery...
WobLight said:
thanks for suggestions,
adb backup doesn't work. It complains about /system/bin/sh not found (looks like either the partition isn't mounted or the failed update erased it).
fastboot boot doesn't work. I was messing with boot.img before, and I found out that intel's boot.img (my zenfone is x86) is not standard format. fastboot logs `creating boot image...`, I suspect it doesn't work at all for intel's. It reports 'booting OK' but the phone doesn't reboot at all.
fastboot flash recovery twrp.img returns OK but still stock recovery...
Click to expand...
Click to collapse
I have an intel atom tablet that I used this tool to boot TWRP then root and create nandroid backups with.
https://forum.xda-developers.com/android/development/intel-android-devices-root-temp-cwm-t2975096
There may be similar tools for your intel tablet, or maybe you can modify this tool or work out something similar.
There is another similar tool that I used on an intel based RCA Viking III tablet.
Sent from my LGL84VL using Tapatalk
Droidriven said:
I have an intel atom tablet that I used this tool to boot TWRP then root and create nandroid backups with.
https://forum.xda-developers.com/android/development/intel-android-devices-root-temp-cwm-t2975096
There may be similar tools for your intel tablet, or maybe you can modify this tool or work out something similar.
There is another similar tool that I used on an intel based RCA Viking III tablet.
Sent from my LGL84VL using Tapatalk
Click to expand...
Click to collapse
It worked!!! :victory:
Thank you so much for helping me out with this, I spent over a week trying to fix/backup data, I was going to give up.
After backing up things properly I'll play with it, see if I can have it booting again (maybe not stock system ).
WobLight said:
It worked!!! :victory:
Thank you so much for helping me out with this, I spent over a week trying to fix/backup data, I was going to give up.
After backing up things properly I'll play with it, see if I can have it booting again (maybe not stock system ).
Click to expand...
Click to collapse
Be careful, this tool is built to work on a lot of different devices with different hardware and different partitioning, the differences in partitions means that it cannot create or restore nandroid backups on all devices that the tool can boot on. Some intel devices that this tool works on can create and restore nandroid backups, some can't, it just depends on how the device is partitioned. It can also be used to flash ROMs on some devices but not on others.
This tool can boot a temporary recovery session on a lot of devices but not all of them can use all of the features in the recovery that it boots.
This difference in partitioning means that trying to restore a backup or flash a ROM can break some devices because the partitioning isn't right. So just be warned, you will be exposing your device to a certain amount of risk if you try using all of the features in the temporary recovery session.
Also, this tool was designed to boot a temporary recovery session on intel devices that have a locked bootloader, this recovery session can not flash ROMs on intel devices that have a locked bootloader, it can only be used to flash devices that have an unlocked bootloader. If your bootloader is locked, you'll brick your device if you attempt flashing a ROM on your device using this recovery session.
Sent from my LGL84VL using Tapatalk
Droidriven said:
Be careful, this tool is built to work on a lot of different devices with different hardware and different partitioning, the differences in partitions means that it cannot create or restore nandroid backups on all devices that the tool can boot on. Some intel devices that this tool works on can create and restore nandroid backups, some can't, it just depends on how the device is partitioned. It can also be used to flash ROMs on some devices but not on others.
This tool can boot a temporary recovery session on a lot of devices but not all of them can use all of the features in the recovery that it boots.
This difference in partitioning means that trying to restore a backup or flash a ROM can break some devices because the partitioning isn't right. So just be warned, you will be exposing your device to a certain amount of risk if you try using all of the features in the temporary recovery session.
Also, this tool was designed to boot a temporary recovery session on intel devices that have a locked bootloader, this recovery session can not flash ROMs on intel devices that have a locked bootloader, it can only be used to flash devices that have an unlocked bootloader. If your bootloader is locked, you'll brick your device if you attempt flashing a ROM on your device using this recovery session.
Sent from my LGL84VL using Tapatalk
Click to expand...
Click to collapse
Thank for your concern, I've backed up contents of the sdcard and data partition (other partitions fails to mount) to an external SD. Ofc sdcard contents are just copy/pasted, as for data partition I've checked and looks like I can open the twrp archives from linux. I'm gonna try to clone the whole mmcblk0 before trying anything weird tho .
WobLight said:
Thank for your concern, I've backed up contents of the sdcard and data partition (other partitions fails to mount) to an external SD. Ofc sdcard contents are just copy/pasted, as for data partition I've checked and looks like I can open the twrp archives from linux. I'm gonna try to clone the whole mmcblk0 before trying anything weird tho .
Click to expand...
Click to collapse
You might can modify the tool itself or the TWRP .img that is built into the tool to modify it to work with the way that your device is partitioned, that way it mounts, reads and writes those partitions correctly.
Sent from my LGL84VL using Tapatalk
Droidriven said:
You might can modify the tool itself or the TWRP .img that is built into the tool to modify it to work with the way that your device is partitioned, that way it mounts, reads and writes those partitions correctly.
Sent from my LGL84VL using Tapatalk
Click to expand...
Click to collapse
I've tried to use the twrp for z00d I have previously downloaded, I have to do some tweaking to make it boot. Even tho it looks like a newer version, console is crashing and partitions won't work anyway. Since stock recovery fails to mount cache I guess there's corruption somewhere on the device. I might have found the stock partitions.tbl, but if I manage to clone mmcblk0 to an external sd, I can perhaps mess with the image with linux and confirm whether is there's corruption.
WobLight said:
I've tried to use the twrp for z00d I have previously downloaded, I have to do some tweaking to make it boot. Even tho it looks like a newer version, console is crashing and partitions won't work anyway. Since stock recovery fails to mount cache I guess there's corruption somewhere on the device. I might have found the stock partitions.tbl, but if I manage to clone mmcblk0 to an external sd, I can perhaps mess with the image with linux and confirm whether is there's corruption.
Click to expand...
Click to collapse
Here is another tool that I used on an intel based RCA tablet, it might can be adapted to be used on your device if you know or can find out where the tool can be modified to work on your device.
https://forum.xda-developers.com/general/general/guide-rca-voyager-rct6873w42-unlock-t3582973
Sent from my LGL84VL using Tapatalk
Droidriven said:
Here is another tool that I used on an intel based RCA tablet, it might can be adapted to be used on your device if you know or can find out where the tool can be modified to work on your device.
https://forum.xda-developers.com/general/general/guide-rca-voyager-rct6873w42-unlock-t3582973
Sent from my LGL84VL using Tapatalk
Click to expand...
Click to collapse
Hello, I've tried a few more stuff today, by the looks of it, the device silently fails to write anything.
I've tried to use adb push to flash a fixed image to /dev/block/mmcblk0, tried fastboot flash, tried dd from the recovery, even tho it reports ok, nothing is actually written on the device. I've tried to rename a file in data (which does mount), but after unmounting/remounting the partition the file still have the old name.
Maybe I can try loading a system on the external sd instead, but that's it.
Thanks again for your help, I was able to recover the data which was actually my priority.
EDIT: partition command also fails

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