Okay, so this happened out of nowhere. My phone was perfectly fine and when I wanted to check for new messages/notifications etc he couldn't turn on. So I powered him up and he was stuck in a bootloop. I said, okay, it's not the first time. I immediately went to backup and restore option to make backup of whole system because data of some apps is valuable to me. I selected the option to backup it on external memory card. It backed up the boot image, recovery image, system partition and when it comes to data partition it restarts or show err on /data partition. I tried changing the default file formats, without success.
So, is there a way to make backup of that partition(maybe installing another cwm?) and how?
Additional info: I tried making backups on both partitions and nothing. On internal SD I have ~3300mb free and on external SD I have ~2500mb free. The reason I am using CWM c6.0.5.0 is that none of the earlier versions don't support Kit Kat based systems. Another thing is that if I select 'mount USB device' option I can see both, the internal and the external SD card on my pc. Perhaps, there is a way to recover /data from that option?
Also, when I enter the CWM at the bottom of the screen it says this:
CWM-based Recovery v6.0.5.0
Swipe up/down to change selections.
Swipe to the right for enter.
Swipe to the left for back.
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
One more question: Can I install older version of CWM, the one that I am sure it is working(because I was using it, that's how I know)?
Updating this: motherboard was dead. So, if you are getting these errors your mobo is probably dead, specifically emmc chip. It can be soldered out and resoldered if you find replacement but its not an easy and cheap procedure.
Related
Alright guys, I've got a question. I have my brothers nexus s that has had CM9 A11 on it and we decided to move to the latest CM9. Long story short, I am no longer able to boot the phone up, but can only access CWM Recovery and Bootloader/Fastboot mode. Trying to boot results in a bootloop. I need help getting this thing back to stock however I can. I've tried to flash recovery.img via fastboot but cannot get my computer to recognize the phone in order to do what I need. He would like his phone back ASAP and I hate to tell him its bricked for a few days. Thanks!
Download full OTA ROM from the link in my signature. Boot into CWM, mount USB storage, and transfer the file to SD card. Flash it. Done.
Just make sure you download the correct ROM for your phone model.
Sent from my Nexus S using xda premium
Video on that page will show you how to install drivers on a windows-based machine to recognise the phone for fastboot, and provide files to do so.
Also, can't you go into CWM --> mounts and storage --> mount usb storage (while plugged into the computer) then copy over any files you need, then flash through recovery.
I forgot to mention that I am getting this when trying to format cache:
E:Can't find misc
E:failed to find "cache" partition to mount at "/cache"
E:Can't mount /cache/recovery/command
E:Can't find misc
E:failed to find "cache" partition to mount at "/cache"
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:failed to find "cache" partition to mount at "/cache"
E:Can't mount /cache/recovery/latest_log
E:Can't open /cache/recovery/latest_log
E:Can't find misc
E:failed to find "cache" partition to mount at "/cache"
I tried to install the OTA update like you said but got the following:
assert failed: write_raw_image("/tmp/boot.img".
"boot")
E:Error in /sdcard/(OTA file name here)
(status 7)
Installation aborted.
Maybe the internal SD card is bad? Any thoughts?
When you get the drivers installed, download the latest 5.0.2.0 CWM from here.
Alright, so I got fastboot to recognize the phone, but am having another problem. It gave me an error when I gave the command to flash the new CWM. I tried to install pdanet for the drivers, and the phone says at the bottom "FASTBOOT STATUS - FAILInvalid Command". I really think something has been corrupted, any ideas on how to fix it/restore it? Thanks for all the help guys.
Fastboot status is not a command.
Fastboot devices is the command you use to test if it sees the device . The serial number will show.
uh oh sounds like someone flashed brickROM V1
Sent from my Nexus S 4G using XDA App. Developer of brickROM, and OP of XDA Thread of The Year 2011.
Hi.
First post in the forum.
Just bought myself a brand new Lenovo A830, seems pretty new as there are very few custom roms out there.
It also doesn't help that this is a Chinese model and I can't seem to find support for it anywhere.
I got it delivered from etotalk.com with etotalk's own rom installed, and immediately started searching for custom roms.
Reason for this was faulty English, force close etotalk tools and Chinese info/submenues.
After trying out a few different roms, I've somehow gotten to a point where the internal memory is unavailable.
I think that one of the roms I installed switched the internal and the external memories, because I noticed a bunch of system
folders on the external sd. After that I wiped and formatted everything I could find from CWM 6.0.3.0, and after this, I'm unable
to install or mount anything. I hope this is possible to resolve without involving the external sd into the puzzle, because really, it seems to me
that I've managed to screw up the internal partitions.
Now, when I startup CWM, I instantly get the following messages:
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
Click to expand...
Click to collapse
I tried to recreate the partition table, using this tutorial:
http://forum.xda-developers.com/showthread.php?t=1158377
I was able to complete the tutorial, but it was not successful. Meaning I was able to create all of the partitions, but still have issues.
I've tried installing these roms:
http://www.needrom.com/mobile/lenovo-a830-5/
(worked installing before, got it up and running, then started messing around again)
and this
http://www.needrom.com/mobile/lenovo-a820-12/
(was also able to install, but showed some nasty "washout" stripes on the screen, which Is why I started messing around again)
and this
http://www.needrom.com/mobile/lenovo-a830/
(was not able to install this one, didn't try it before the mounting issues started.
When I try to mount /sdcard storage now, I get "Error mounting /sdcard!"
Same for /sd-ext.
Also, the internal sd card shows up with "no media" now when mounting usb to PC.
So, the only thing I'm able to do on this phone now is to enter CWMR.
I've searched for days now on several forums, I'm desperate. Please help me!!
I Think my Internal sdcard is corrupted!
Please Help! Reflashing android won't work. I think the partition is corrupted!
Device: Google Nexus 5
Original OS: Android 5.1.0_r1 (LMY47D)
Recovery: TWRP 2.8.6.0
One day I turned my phone off, and later i decided to go into recovery. I believe I went inside Advanced Options and clicked "Fix Permissions." Then I proceeded to reboot. I was busy at the time, so when I remembered about my phone, I saw that it was still booting. It had been at least 30 minutes so I knew it was in a bootloop. I decided to go back into recovery and reflash the system.img onto it. No luck. I realized I had to try flashing the entire Nexus image (using the flash-all.bat). The phone would still not turn on. I tried flashing different versions of android, and here are my findings:
Android 5.1.0_r3, 5.1.0_r1, 5.0.1: all cause my phone to not be able to boot up (stuck on the 4 color flying animation)
Android 4.4.4, CyanogenMod (cm-11-20141008-SNAPSHOT-M11-hammerhead.zip): Allow my phone to boot up.
However, after I found that I could boot onto Android 4.4.4 and CyanogenMod, I realized that I could not get access to the sdcard!
Here are my findings:
When I go to the phone's root folder, I see a FILE called "sdcard"
When I go to \storage, I see a FILE called sdcard0
When I open camera, the app crashes (possibly because it stores pictures on the sdcard).
I tried to delete these files when I had root access with CyanogenMod but the file manager said "can't delete file." When I am in recovery mode (TWRP) however, I can see the sdcard folder and the contents. Just through every system boot, the sdcard is inaccessible.
After I realized that the problem wasn't due to the data on my phone (after flashing many system images), I realized my data partition might be corrupted. Then I went to this site and followed the directions: http://forum.xda-developers.com/goo...o-repairing-corrupted-data-partition-t2577447
The e2fsck command didn't do anything as cmd said "The superblock could not be read or does not describe a correct ext2 filesystem."
Afterwards, my friend told me to try mke2fs /dev/block/platform/msm_sdcc.1/by-name/userdata
I typed that in adb shell and something happened. I started processing blocks or something. Unfortunately now, I am unable to mount the data partition at all. I am also unable to flash the userdata.img onto my phone through fastboot.
UPDATE: When I open up twrp recovery and look in the log I see the following:
E: Could not mount /data and unable to find crypto footer.
E: Unable to mount '/data'
E: Unable to recreate /data/media folder.
Updating partition details...
E: Unable to mount '/data'
E: Unable to mount '/cache/
E: Unable to mount '/persist'
...done
E: Unalbe to mount storage.
E: Unable to mount /data/media during GUI Startup.
E: Unable to mount '/cache'
Full SELinux support is present.
E: Unable to mount '/cache'
E: Unable to Mount '/cache'
E: Unable to mount /data/media/TWRP .twrps when trying to read settings file.
E: Unable to mount '/data'
MTP Enabled
Anyone know how to fix this? Please help, I owe you so much if you can solve this! Reply to me if you're able to help, I'm also new to xda so I don't really know how messages work. Thanks!
Try taking it out and putting it back in. It happened to me too.
mygoldeneye said:
Try taking it out and putting it back in. It happened to me too.
Click to expand...
Click to collapse
By sdcard I mean the internal sdcard (/storage/emulated/0). Nexus 5 does not have an external sdcard slot anyways.
So you are saying you have no apps, no widgets, nothing... /storage/emulated/0 is your main storage which INCLUDES your system files (unless you have a phone or tablet that has a separate internal SD card - would be /storage/emulated/1 ... I am guessing)
So, I have a Sprint HTC One (M7) that I tried to root following this guide:
http://www.xda-developers.com/how-to-root-the-htc-one-m7-and-install-recovery-xda-developer-tv/
Custom Recovery was flashed successfully (I tried both TWRP 2.5 and CWM 6.0.4.6), and I immediately got the following errors:
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
I can't access /cache, in short. So, I tried to find my SD card, but my phone doesn't have a slot for one, and I couldn't figure out how to write to the virtual one inside the phone, so I passed SuperSU-v2.46.zip through sideload, and it failed when it couldn't access cache. I was then rather foolish, and tried to just flash a ROM from Android Revolution HD, found on this thread:
http://forum.xda-developers.com/showthread.php?t=2265618 (I used this particular ROM:Android_Revolution_HD-One_92.0_4a9d05.zip).
Again, I passed it using sideload because I don't have an SD card. The install formatted my partitions, then at 30% (when it began to copy files), it failed. Thus, I was left with an empty phone, but an unlocked bootloader. I tried a few more things, to no avail.
I think if I could figure out how to put something in the virtual SD inside, that might get me there, since I'm guessing that it's formatting over the location of the installer/image. Also, I found that if I use the "Wipe /cache" from CWM, I don't get those errors, but then I can't reboot into the recovery again, so I'm guessing that it's saving it in the /cache partition. I use the command "fastboot flash recovery CWM_image.img" to put my recovery in there.
Anyway, any ideas or help would be nice. I know enough to be dangerous, but clearly not enough to get myself out of this mess. Any help would be appreciated.
Hi there
You'd be best served asking for help from the experts who own your device, here
So you came at XDA-Developers to find help? (Beginners Thread)
Good luck
So, I have a Sprint HTC One (M7) that I tried to root following this guide:
http://www.xda-developers.com/how-to...-developer-tv/
Custom Recovery was flashed successfully (I tried both TWRP 2.5 and CWM 6.0.4.6), and I immediately got the following errors:
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
I can't access /cache, in short. So, I tried to find my SD card, but my phone doesn't have a slot for one, and I couldn't figure out how to write to the virtual one inside the phone, so I selected "Install zip" option in CWM and passed SuperSU-v2.46.zip through sideload, and it failed when it couldn't access cache. I was then rather foolish, and tried to just flash a ROM from Android Revolution HD, found on this thread:
http://forum.xda-developers.com/show....php?t=2265618 (I used this particular ROM:Android_Revolution_HD-One_92.0_4a9d05.zip).
Again, I passed it using sideload because I don't have an SD card. The install formatted my partitions, then at 30% (when it began to copy files), it failed. Thus, I was left with an empty phone, but an unlocked bootloader. I tried a few more things, to no avail.
I think if I could figure out how to put something in the virtual SD inside, or somehow protect the install files from being overwritten during the install, that might get me there, since I'm guessing that it's formatting over the location of the installer/image. Also, I found that if I use the "Wipe /cache" from CWM, I don't get those access cache errors, but then I can't reboot into the recovery without flashing it again, so I'm guessing that it's saving it in the /cache partition. I use the command "fastboot flash recovery CWM_image.img" to put my recovery in there, which may be a part of the problem.
Anyway, any ideas or help would be nice. I know enough to be dangerous, but clearly not enough to get myself out of this mess. Any help would be appreciated, and at this point, it would just be nice to have any OS on my phone. All HTC recovery software fails because they require a locked bootloader, but my computer won't detect a phone with no OS and a locked bootloader...
Duplicate.
http://forum.xda-developers.com/general/xda-assist/odd-problems-trying-to-root-htc-one-m7-t3164965