Hello!
First of all, the diagnostic in the title was given by a guy on reddit so ignore it if you want.
My Nexus 7 started freezing and crashing a few weeks ago. Last week I decided to change the rom from a CM 11 m8 to cm 11 m12.
While writing, after sending the system.img, it stopped at writing the system. Decided to try again but first I loaded TWRP and wanted to wipe everything just to be sure.
Apparently, in the console log, there were a ton of errors "cant mount /data", "cant mount /cache".
Looked up some solutions and managed to reformat using a make_ext4fs command. The /data errors were gone but the /cache is still there.
Tried reinstalling a rom again and it still failed. Also I tried to install a rom via the adb sideload. I manged to get a CM 11 running but the freezing was still there.
Whenever I try to install a stock rom, it stops at writing system and it says FileWriteError or something like that.
The tablet has been put to sleep for a week now and today when I opened it in TWRP, the /cache error was still there.
If anyone is interested in the reason it froze, I managed to boot into safe mode and there were a lot of NPEs thrown by Keyguard Manager or similar to that.
Please help me!
Related
hey guys, im back with stupid questions...
I wanted to upgrade my Nexus 7 32gb UMTS to 4.3 and used the Nexus 7 Toolkit (by Mark Skippen).
I was on a custom Rom and wanted to get back to Stock, so i could just use the update process by Google.
Downloading and Installing the ROM (including wipe of user data) by the Toolkit seemed to work and didnt show any error messages.
As is tried to boot my device into Android I got stuck in the bootloader.
When I tried to start it, a small white message "Booting failed" appeared in the top left corner. Nothing else happend.
I did everything again, no changes.
Next step was to google for a few mins, then I tried to install a custom recovery via Toolkit (which worked) and install a zip-file Rom via sideload.
Connection was there, the files got pushed onto the device but then "An Error Occured" popped up and everything stopped.
Installing a zip via usb-otg seemed promising, but this got me errors like "unable to mount /system" and "unable to mount /cache"...
when I tried to reboot from TWRP or ClockwordMod Recovery (tried the earlier described things with both recovieres) I got a message saying
"there is no OS installed, are you sure you want to reboot?"
Please help me, I really dont know how to fix this and I will need my Nexus 7 in 2 days (thats why I tried to reinstall and polish everything )
thanks for your help, I really appreciate it
Edit: tl;dr
Stuck in fastboot, no OS is installed. sideload / installing ROM via ADB / installing ROM via usb-otg doenst work, most certainly because /system and /cache cant be mounted
so AFAIK the real problem is that I cant mount those partitions, otherwise I could install a ROM and get out of fastboot/recovery easily. (just mounting them in custom recoveries didnt work btw)
IchStelleDummeFragen said:
hey guys, im back with stupid questions...
I wanted to upgrade my Nexus 7 32gb UMTS to 4.3 and used the Nexus 7 Toolkit (by Mark Skippen).
I was on a custom Rom and wanted to get back to Stock, so i could just use the update process by Google.
Downloading and Installing the ROM (including wipe of user data) by the Toolkit seemed to work and didnt show any error messages.
As is tried to boot my device into Android I got stuck in the bootloader.
When I tried to start it, a small white message "Booting failed" appeared in the top left corner. Nothing else happend.
I did everything again, no changes.
Next step was to google for a few mins, then I tried to install a custom recovery via Toolkit (which worked) and install a zip-file Rom via sideload.
Connection was there, the files got pushed onto the device but then "An Error Occured" popped up and everything stopped.
Installing a zip via usb-otg seemed promising, but this got me errors like "unable to mount /system" and "unable to mount /cache"...
when I tried to reboot from TWRP or ClockwordMod Recovery (tried the earlier described things with both recovieres) I got a message saying
"there is no OS installed, are you sure you want to reboot?"
Please help me, I really dont know how to fix this and I will need my Nexus 7 in 2 days (thats why I tried to reinstall and polish everything )
thanks for your help, I really appreciate it
Edit: tl;dr
Stuck in fastboot, no OS is installed. sideload / installing ROM via ADB / installing ROM via usb-otg doenst work, most certainly because /system and /cache cant be mounted
so AFAIK the real problem is that I cant mount those partitions, otherwise I could install a ROM and get out of fastboot/recovery easily. (just mounting them in custom recoveries didnt work btw)
Click to expand...
Click to collapse
Well . what you can try for now is download the latest factory images and flash them manually via fastboot .. See how that turns out. You can install any ROM via fastboot .. No issues what so ever.
In the factory images there will be a bootloader IMG.. Flash that first and then flash the remaining images ( I suggest manually or via the .bat or .sh files ) and then see if you can boot up android. Mostly should be possible.
And did you try rebooting inspire of the message " no is installed " appearing on the screen ? Maybe it will boot a ROM ? I remember facing this message after just flashing a rom sometimes. So don't worry.
As long as you have access too fast boot everything can be fixed at least w.r.t software.
Red Devil said:
Well . what you can try for now is download the latest factory images and flash them manually via fastboot .. See how that turns out. You can install any ROM via fastboot .. No issues what so ever.
In the factory images there will be a bootloader IMG.. Flash that first and then flash the remaining images ( I suggest manually or via the .bat or .sh files ) and then see if you can boot up android. Mostly should be possible.
Click to expand...
Click to collapse
It worked!!! Thank you so much.
Still wondering why it didnt flash the factory image as a whole while flashing every part step by step worked perfectly fine...
Red Devil said:
And did you try rebooting inspire of the message " no is installed " appearing on the screen ? Maybe it will boot a ROM ? I remember facing this message after just flashing a rom sometimes. So don't worry.
Click to expand...
Click to collapse
Yes, tried booting, but the device just restarted and returned to fastboot mode.
many thanks again
help plz
this is where I am at as well how do you get out of this. kinda a noob at this so a step by step would be great thanks
Hi all,
it's now a month since I downloaded the 4.4 update crashed my Nexus 7.
I have been trying several tool and solutions but nothing worked. I know there are many posts for this problems but I may need specific help.
Current status is I have a working TWRP recovery but every ROM I try to install I get "failed" without further explanation.
Before I was "Unable to mount system" but now it seems sorted out.
I also tried to flash the various components one by one using fastboot. Everything fine for boot, recovery and userdata, but when I try to flash system it gets stuck there. I waited for a few hours but nothing happened.
Any suggestion?
Thanks!
Hello, this is my first post forgive me if i say something wrong
I have an elephone p7000. I was using it with Aerom (custom rom) then it started showing errors app failures, then i closed phone 3 days ago and it soft bricked. i tried formatting with SP flash tool then flashing some roms including stock roms. Phone never opened always keeped at logo. Then using twrp and Adb command i send rom.zip to my phone and installed it with twrp, after that phone opened but after 10 minutes my phone freaked out. error messages showed up (android stoped working) (system stopped working) or google play stopped working etc. then it soft bricked again. And again data files corrupted. When i tried to wipe data cache calvic unable to mount storage -unable to mount data etc. so i found in another thread (http://forum.xda-developers.com/showthread.php?t=2683787) and used that commands
adb shell
killall -19 recovery
make_ext4fs /dev/block/mmcblk0p8
reboot
storage fixed then i flashed a stock rom. phone opened but after 30 minutes again system failed android stopped working launcher stopped working google stopped working etc. and now my phone is soft bricked again and when i try to wipe it says unable to mount storage again. So im guessing i must format all things in phone even twrp and install recovery then a stock rom.
i need help what should i do?
Sorry for my bad post english isnt my first language.
anyone to help me ?
is there anybody to help me?
sp flash tool format
helloooooooooo
no one knows how to fix it ? please i really need help im dying for it.
I did format all even recovery with flash tool . then i flashed a new rom.
i opened through twrp flashing 3-4 times but this time android stopped working google stopped working again and went down and bricked phone. please help me what can i do.
Same problem
I have the same problem! Were you able to fix it?
Hello,
I have a Zenfone 2 Laser ( ZE500KL) that remained unused for some months.
Before those months it was running kinda smoothly on Lineage 14 if I can remember
Now, I need the reboot the phone and some problems appear:
First, the boot is stuck on splash screen and I can't access recovery (I can still acess Fastboot)
With fastboot I reinstalled twrp 3.0.2-0 (for ze500kl) and managed to boot on it.
Then I wanted to reinstall a stock rom (or a custom rom, anyway, I want the phone to call send messages)
I tried Lineage 14.1 and two stock roms that are mentionned here https://forum.xda-developers.com/zenfone-2-laser/help/rescue-restore-downgrade-ze500kl-t3657297
Some of them stucked on the progress bar, others failed.
The main problem (I think) is that /system, /cache and /data can't be mounted.
I've tried changing file system to ext2 (and others) and back to ext4 nothing worked.
I've also tried erasing many things with fastboot but I get "Permission denied" when I try something that is not userdata, cache or system
Right now, I'm stuck and don't really know what to do except try again and pray.
If you have some ideas, I'll take
Thank you in advance
EDIT:
For what I understand, I need to redo the partitioning since there seems to be corrupted blocks (and actually I don't really know how to do it )
mobo prblm
Samanuts said:
Hello,
I have a Zenfone 2 Laser ( ZE500KL) that remained unused for some months.
Before those months it was running kinda smoothly on Lineage 14 if I can remember
Now, I need the reboot the phone and some problems appear:
First, the boot is stuck on splash screen and I can't access recovery (I can still acess Fastboot)
With fastboot I reinstalled twrp 3.0.2-0 (for ze500kl) and managed to boot on it.
Then I wanted to reinstall a stock rom (or a custom rom, anyway, I want the phone to call send messages)
I tried Lineage 14.1 and two stock roms that are mentionned here https://forum.xda-developers.com/zenfone-2-laser/help/rescue-restore-downgrade-ze500kl-t3657297
Some of them stucked on the progress bar, others failed.
The main problem (I think) is that /system, /cache and /data can't be mounted.
I've tried changing file system to ext2 (and others) and back to ext4 nothing worked.
I've also tried erasing many things with fastboot but I get "Permission denied" when I try something that is not userdata, cache or system
Right now, I'm stuck and don't really know what to do except try again and pray.
If you have some ideas, I'll take
Thank you in advance
EDIT:
For what I understand, I need to redo the partitioning since there seems to be corrupted blocks (and actually I don't really know how to do it )
Click to expand...
Click to collapse
Looks like u got a faulty motherboard
Phoniex_47 said:
Looks like u got a faulty motherboard
Click to expand...
Click to collapse
Any idea how it happened or how I could fix it ? I used this phone for like 2/3 years before and never had any problem
Got an update notification on my nexus 6p with installed RR-P-v7.0.2 on it. After installing this OTA update i got an infinite booting screen. I loaded back into twrp and got a password prompt to mount partitions (i didn't have any passwords anywhere on my phone before). I could neither access internal storage from within recovery, nor from pc. Installed newest version of TWRP (3.4.0), didn't help. Did a full wipe, which finally helped and allowed me to see and transfer files to my internal storage. Downloaded RROS-Q-8.5.9 zip from official site, tried to install again, which resulted in same error as before. Then i found out that i can load the system even with this error presenting, but i CAN'T install magisc. I don't know if it is me, who does something wrong or is it error in system zip? Also before each attempt to reinstall RROS-Q-8.5.9 i see logs, that magisc binaries r missing, i don't know if that might be the reason of vendor error in the end. The only way i can fix it is flash official vendor.img and flash older system image. But i really want to have RROS-Q-8.5.9 on my phone, with magics. So i came to seek your help, people. Please help