Soft bricked Nexus7 can't get through "Can't mount" errors - Nexus 7 (2013) Q&A

Hey guys,
I was googling for the past few days who else might experience such problem, but I haven't stumbled upon such case. The problem is, I'm stuck on the bootloader part.
The initial goal was to root the device, so:
- I unlocked the bootloader,
- installed clockwork-touch-6.0.4.7
- wiped everything
- when I try to install SuperSU & new ROM I'm getting errors like
Code:
Can't mount /cache/recovery
Can't open /dev/block/platform/msm_sdcc.1/by-name/misc (No such file or directory)
Can't mount /cache/recovery/log
and a few other errors in this fashion about cache.
When I actually run the
Code:
abd sideload aicp_flo_n-12.0-UNOFFICIAL-20161020.zip
the installation tries to mount folders like /data but gets an error.
Finally it says
Code:
E1001: Failed to update system image
Installation aborted
Is there a way to re-format everything to FAT using fastboot and then begin everything from scratch? I have a feeling this is filesystem problem that it can't read properly or something... Maybe I'm wrong? What would be your suggestions?
Thanks!

I had a similar issue on mine a few days ago. I was completely stock and wanted to unlock bootloader, flash a custom recovery and then finally a custom ROM. I was successfully able to unlock the bootloader and flash the recovery (latest TWRP). But, when I tried to boot into recovery, it went past the recovery logo and then showed me errors like yours inside the recovery and rebooted. It then automatically booted into the recovery, showed the same errors and rebooted again. I wasn't able to do anything apart from booting into bootloader by sending an adb command.
Now coming to the part which fixed my errors. What I did was used the "fastboot -w" command (without the quotes) while I was in bootloader to wipe everything and after that, flashed the recovery again. Then I was able to successfully boot into recovery and everything has been fine since then.

Related

Boot loop after 4.4.2 update and Clockworkmod install

Stuck in a bootloop. Here's my story.
Updated to 4.4.2 earlier today.
Tried to root my Nexus 7 later after the update. Here's what I did:
rebooted into bootloader with adb (adb reboot-bootloader)
unlocked the bootloader with fastboot (fastboot oem unlock)
flashed clockworkmod using fastboot (this is the file i downloaded and flashed: -http://download2.clockworkmod.com/recoveries/recovery-clockwork-6.0.4.3-flo.img)
rebooted into recovery
selected "install zip>choose zip from sdcard" (trying to install supersu.zip file that I had loaded onto the internal memory)
Here's where I ran into trouble. After selecting "choose zip" nothing happens, and a message shows up on botton of the screen that says "E: Can't mount /sdcard"
So I can't install anything from clockworkmod.
I rebooted into bootloader, tried to re-flash using fastboot - "device not found"
I tried to reboot the device into android - bootloop animation
I tried wiping data, cache, factory reset, dalvik chache, etc from recovery - still getting bootloop animation
Any ideas?
Ok, I wiped/deleted sdcard data from clockworkmod and I managed to get it to boot.
That's deadly but I still don't have root, which was the point of this in the first place. Anyone know where I went wrong?
Strange. I did pretty much the exact same procedure and it worked for me.
Sent from my Nexus 10 using xda app-developers app
So, I flashed TWRP.
Tried installing SuperSu from there. This worked slightly better than Clockworkmod Recovery, it at least could read the internal storage, and allowed me to select the supersu.zip file. But I get the following error when I try to install it:
E: Unable to open zip file
Error flashing zip 'sdcard/Download/UPDATE-SuperSU-v1.80.zip
Not sure what's happening here.... May have to do with the 4.4.2 update? Maybe I'll try flashing the 4.4.2 factory image and then retrying the above steps.
I also did pretty much the same. I had a new Nexus 7 2013. The very first thing I did was to update to 4.4.2 through OTA before I went to rooting procedures:
Unlock bootloader (data was wiped because of it)
Flash TWRP
Flash superuser.zip file through TWRP
Everything worked fine.

[Q] VZW HTC One - Stuck in Recovery

Team,
I've consider myself a fairly intermediate android root user. I've been doing this for many years, and have never had an issue that I was able to get out of (with the help of the xda community, of course). I've personally never had to post a question on here because I'm always able to find someone who has a similar issue to me. Today though, I am stumped...
I've been happily running Slimkat: http://forum.xda-developers.com/showthread.php?t=2590649 for the past few weeks.
This morning, I decided to try the ElementaX kernel (http://forum.xda-developers.com/showthread.php?t=2249774). After flashing the Kernel, my phone refused to boot up. Usually, I would just reboot into recovery and re-flash the ROM I've running (which includes the ROM's kernel). Every single time I've flashed an incompatible kernel in the past, this method has worked.
After choosing to flash the ROM, it got stuck while installing. The installation just sat there for at least 20 minutes.
Next step - I decided to wipe data/factory reset and then re-flash the rom. Data was able to be wiped, but then it got stuck on formatting cache....
So I hard reset, and decide to restore my nandroid backup - As soon as I boot up CWM Recovery, I get this message
E:Can't mount /cache/recovery/command
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
E:Can't mount /cache/recovery/last_install
E:Can't open /cache/recovery/last_install
When I tried to restore the backup, it just timed out again...
I reflashed CMW REcovery via fastboot, and even tried TWRP Recovery. Nothing seems to work.
If I try and restore my nondroid backup now, I get an MD5 mismatch.
I'm unable to mount /system, /cache and I'm getting nothing when I try and mount USB storage.
I've soft-bricked devices before (we are all careless sometimes), but I was always able to find a solution somewhere. I think I got myself into a situation that's a bit above my paygrade.
Any help would be greatly appreciated.
Thanks.
Are you sure you reflashed the correct recovery? Try this one just for kicks http://vzw1files.dyndns.org/RECOVERIES/twrp/openrecovery-twrp-2.6.3.4-m7vzw.img If it still dosent work, i would try an ruu.
cmlusco,
Thanks for the quick reply. I flashed the recovery - Unable to mount System or Cache and PC is not detecting any devices when activating ADB sideload through TWRP.
To be honest, I never of an RUU before. I can research the topic. If you know of any threads that could help me along the process, I would definitely check them out.
thanks again.
The RUU method worked! Thank you very much for suggesting that.
Here's what I did.
1. Download VZW RUU.zip from the following thread (http://forum.xda-developers.com/showthread.php?t=2428276)
2. Rename to "ruu.zip" (Optional)
3. Enter fastboot mode
4. enter "fastboot oem rebootRUU" - You should not see a silver HTC logo on your device.
5. enter "fastboot flash zip ruu.zip" - The first time you execute this command, it only prepares the flash
6. As soon as the flash is done preparing, enter the same exact command again "fastboot flash zip ruu.zip"
7. Now you'll see a little green progress bar on your phone. This does not need to reach 100%. As soon as your command window is finished, you can just "fastboot reboot".
8. You should be set back to fully stock HTC One.
Thanks again,
OMG OMG OMG... you saved me
Pharaohnee said:
The RUU method worked! Thank you very much for suggesting that.
Here's what I did.
1. Download VZW RUU.zip from the following thread (http://forum.xda-developers.com/showthread.php?t=2428276)
2. Rename to "ruu.zip" (Optional)
3. Enter fastboot mode
4. enter "fastboot oem rebootRUU" - You should not see a silver HTC logo on your device.
5. enter "fastboot flash zip ruu.zip" - The first time you execute this command, it only prepares the flash
6. As soon as the flash is done preparing, enter the same exact command again "fastboot flash zip ruu.zip"
7. Now you'll see a little green progress bar on your phone. This does not need to reach 100%. As soon as your command window is finished, you can just "fastboot reboot".
8. You should be set back to fully stock HTC One.
Thanks again,
Click to expand...
Click to collapse
Some of the RUU's i found the download was funky but here's the one that finally worked
http://www.htc1guru.com/dld/ruu-zip-m7_wl_jb_50_vzw_1-10-605-10_decrypted-zip/
I was stuck in this situation... something with my cache got messed up when I tried to let ROM Manager update my CWMR... never again.
Glad you got it worked out, could you put solved in thread title it help others, thanks

How to repair Wileyfox Swift when I can get into TWRP but not bootloader

Hi. I've just updated CM13 to the latest nightly using TWRP, but now the system just boots into TWRP - that's whether I select boot system, recovery, or bootloader. I tried restoring from a TWRP backup or another copy of the nightlies zip - it all seems to work fine but doesn't solve the problem. I can connect to the 'recovery' device using adb but adb restart bootloader just loads TWRP again. I've tried wiping first the dalvik/cache, then everything but the internal card, then finally everything but nothing seems to work.
I did get something a little bit like this a few days ago because SuperSU was complaining that I needed to update the binary. I let it do it the way that it suggested one does when TWRP is installed and afterwards couldn't reboot into system, but after a few minutes of frustration sorted things by wiping various partitions.
I attempted to load the full system restore files (cm-13.1-ZNH2KAS29G-crackling-signed-fastboot-74bb753396.zip) using TWRP but that didn't work (I imagine because they're designed to be run via fastboot). I tried loading them via the ADB sideloader option included in TWRP but it failed after a few seconds (I think the message was 'transmitting 0.0x'
I opened that zip and copied the various files to the external card, but I then baulked at installing the image files manually because the only partition option I'm given is boot and my understanding is that each image file should go into its own partition.
The only other potentially pertinent information I can think of:
TWRP keeps reporting "E: Unable to find partition size for '/recovery'"
Has anyone got any ideas please? I had been musing that my next phone would have OTG and NFC, but I wasn't planning to upgrade just yet if I don't absolutely have to.
Have you got it fixed? And if yes - how? I am stuck in a similar situation and can't find a solution for it. Tnx in advance.

Flashing Issues (Fastboot, TWRP and MAGISK)

Hey. So I've unlocked the device and had Lineageos running on the device but decided I wanted to access google pay functionality and read up on installing magisk and TWRP to circumvent the safetynet issue. I managed to flash TWRP through fastboot perfectly fine, but then when I tried to push + install magisk is when the problems started. I received the error "Failed to mount system_root (device or resource busy)" on attempting to install, which I could not resolve. I decided to use TWRP to format data and factory reset and try again, which is when I ran into "failed to mount /data" when trying that.
At this point I tried flashing an older TWRP, thinking maybe the old guide doesn't work for the newer TWRP I was using. Following the same steps of fastboot flash recovery ..." which I used previously, I now have this problem
"Writing 'recover' FAILED (remote: '(recover) No such partition')"
and the device no longer boots back into lineageos, although I am able to run the fastboot boot filename command, and using that I was able to reinstall a working lineagos so the phone isn't entirely useless. A whole sleuth of fastboot commands I've seen suggested as solutions to some of these issues now no longer work however, such as 'fastboot format userdata'.
The mounting of the data folder is resolved... or at least I haven't seen it crop up again, however I still can't install magisk due to the system_root mount problem. Another weird thing is that I can install lineageos from TWRP recovery without running into the system_root problem, but using the same process for magisk results in system_root mount failure. Also, when I installed lineageos through it's own recovery image it referenced magisk (i believe it said it failed to install but I didn't copy the log).
I briefly tried the mi flash tool but ran into a Not catch checkpoint (\$fastboot -s .* lock),flash is not done problem which I haven't really delved too deeply into yet but might tomorrow after work.
Is my phone screwed?

Cant wipe data and stuck in bootloop.

I wanted to revert my mi 10t pro back to stock miui, but as I wanted to wipe the data, but I got errors like "E:Unable to decrypt FBE device. Code: 1000" or "Failed to mount '/metadata' (invalid argument) and some more. I was told to change the file system to EXT2 but this got me into a bootloop, where I land in fastboot every time I restart. I can navigate to recovery again tho.
Please help me. Im a bit desperate right now.
Edit: My recovery is twrp.
Janxr said:
I wanted to revert my mi 10t pro back to stock miui, but as I wanted to wipe the data, but I got errors like "E:Unable to decrypt FBE device. Code: 1000" or "Failed to mount '/metadata' (invalid argument) and some more. I was told to change the file system to EXT2 but this got me into a bootloop, where I land in fastboot every time I restart. I can navigate to recovery again tho.
Please help me. Im a bit desperate right now.
Edit: My recovery is twrp.
Click to expand...
Click to collapse
Just simply download and flash the Apollo's stock Fastboot ROM in fastboot mode
I tried flashing with with this: "apollo_global_images_V13.0.5.0.SJDMIXM_20220704.0000.00_12.0_global_3391fe8ef8"
is that the right version for my phone (bought in Germany)? I dont get an error while flashing but i just is not finishing. Its running for an hour now and still nothing happended. Ill update this if it finishes.
Edit: False alarm: After restarting the pc, i can connect again. But I still dont know what to do now.
I stopped the process after 2 hours and it got worse. In the recovery, i get the same issues as before, but my fastboot menu got replaced by onother one (I just see orange text that says fastboot). With that new fastboot menu I can not connect to my computer anymore.
Solved: I will never touch these Xiaomi tools again. platform-tools is just better and works
How did you solve the problem with the phone that cant connect to pc?

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