Database Info

[Q] * [Discussion : Inputs from Android Experts] *Topic: BOOTLOOP / NAND WRITE FAIL*

Hello XDA community,
I am proposing this thread as a common knowledge base on
Rampant Nand Write Fail issue.
Having searched through numerous forums here & on Internet, i concluded no working solution on it.
Many have accepted fate of their devices - Dead .. and put them in storerooms.
For rest frantic people out there eating into *help me* lines , they will soon accept the same.
So, the purpose of this thread is to Analyze why did it happen, than to expect a Resurrection .
Having been a victim of NAND WRITE Fail, here are my Final thoughts :
Characteristics of problem :
1. BootLoop
2. Typical of Kitkat OS
3. Download mode available
4. Recovery mode unavailable
- flashes open-stomach android logo for split second , BootLoop again.
5. Happened in devices that initially did not come with KNOX,
but were upgraded to Kitkat with KNOX.
Observations :
1. Changing System / USB 2.0 port - did not solve.
2. Changing versions of ODIN - did not solve
3. Re-flashing of Stock 4.4.2 ROM - Failed [NAND Write Fail]
4. Flashing of older Stock ROMs - Failed [NAND Write Fail]
- also gathered info : You can not downgrade since Kitkat Bootloader wont allow.
5. With ONLY Download mode accessible,
- Not a single tar was successfully Flashed onto device.
- All recovery tar files fail to flash [NAND Write Fail]
Conclusion to Discuss with Experts :
1. Write to NAND memory is being blocked by something [Boot Loader ? ]
2. NAND memory itself is damaged.
- Unlikely seeing the wide scale of this problem.
3. Why is Download mode accessible,
and what causes a flash-second opening into Recovery mode... then Reboot.
4. What role has KNOX to play here [Trying to root tampered with WHAT PART OF KNOX Rule] ?
5. What do we know about bootloader in this context ?

thanks for opening this thread.
I have the same problem with my M480W.
However I am able to enter recovery mode, yet nothing works ...
Code:
E: failed to mount / system (Invalid argument)
can't mount '/system' (invalid argument)
E: failed to mount / system (Invalid argument)
E: File Open error '/cache/recovery/log'
E: can't open /cache/recovery/log
E: File Open error '/cache/recovery/last_log'
E: can't open /cache/recovery/last_log
E: File Open error '/cache/recovery/last_install;'
E: can't open /cache/recovery/last_install
I havent yet tried to repartition, cause I cannot find the correct pit file for my model.

Megatronicalite said:
thanks for opening this thread.
I have the same problem with my M480W.
However I am able to enter recovery mode, yet nothing works ...
Code:
E: failed to mount / system (Invalid argument)
can't mount '/system' (invalid argument)
E: failed to mount / system (Invalid argument)
E: File Open error '/cache/recovery/log'
E: can't open /cache/recovery/log
E: File Open error '/cache/recovery/last_log'
E: can't open /cache/recovery/last_log
E: File Open error '/cache/recovery/last_install;'
E: can't open /cache/recovery/last_install
I havent yet tried to repartition, cause I cannot find the correct pit file for my model.
Click to expand...
Click to collapse
PIT Has not solved this problem on any device i know...
Per my knowledge from various posts, they all ended up finally making it a 'Paper Weight' .

Has anyone found a solution?

[Q] GT-I9128E running into E:failed to mount /data failed to mount /cache

hello guys,
first of all i have read many posts about the problem and have tried most of them:
secondly:- i am sorry maybe it is not the right section but my phone model doesn't exit here
the problem in details : my phone is Galaxy Gt-I9128E
it freezes on Samsung logo , tried recovery boot with power volume up home key , i see the 6 recovery options in blue and
Successfully applied multi-CSC ." in yellow
and in red :
E:failed to mount /data (Invalid argument)
can't mount '/data' (Invalid argument)
E:failed to mount /data (Invalid argument)
E:Can't mount /data/log/recovery_log.txt
E:Can't mount /cache/recovery/last_install
i have tried the 6 recovery system options
1 from ADB : adb shell : connection closed but see the device some times
2 from external storage : downloaded the firmware to external sd card but the phone shut down every time trying to install it.
3 wipe data : wiped
4 wipe cache partition : wiped
download firmware with Odin 3.7 and 3.10 : Pass reboot but the same problem
tried CWM recovery installed by Odin : Pass . device reboot and going to recovery mode but nothing happened the same old system recovery boot
any help will be appreciated
thanks

[Completed] HUAWEI y600-u20 dead stock recovery

I just want to ask if you're experiencing blinking android on stock recovery.My phone is Huawei y600-u20 dual sim smartphone, MTK6572 CPU. At first bootloop i tried flashing using update.zip on stock recovery and it works fine but after installing camera 360 lite, my phone boots and it's stuck on the logo and when I tried to enter recovery mode the android logo with no command keeps blinking, I can't execute any command. I tried reflashing the same rom i flash at first bootloop but it didn't work anymore. I also tried reflashing it with other stock roms and still no luck.
One time, I flash it with a new backup ROM from my friend where he was using CWM recovery, after i access the CWM recovery,
this is the message i got
E: Can't mount /cache/recovery/command
E: Failed closing /dev/misc (I/O error)
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/recover/last_log
E: Failed closing /dev/misc (I/O error)
Couldn't open directory
No files found.
i try to mount emmc but it says error mounting emmc.. the same when i mount cache, data, etc. the result is always ERROR mounting emmc, cache, etc.
If you have any idea, please do help me how to fix it.

oyensian11 said:
I just want to ask if you're experiencing blinking android on stock recovery.My phone is Huawei y600-u20 dual sim smartphone, MTK6572 CPU. At first bootloop i tried flashing using update.zip on stock recovery and it works fine but after installing camera 360 lite, my phone boots and it's stuck on the logo and when I tried to enter recovery mode the android logo with no command keeps blinking, I can't execute any command. I tried reflashing the same rom i flash at first bootloop but it didn't work anymore. I also tried reflashing it with other stock roms and still no luck.
One time, I flash it with a new backup ROM from my friend where he was using CWM recovery, after i access the CWM recovery,
this is the message i got
E: Can't mount /cache/recovery/command
E: Failed closing /dev/misc (I/O error)
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/recover/last_log
E: Failed closing /dev/misc (I/O error)
Couldn't open directory
No files found.
i try to mount emmc but it says error mounting emmc.. the same when i mount cache, data, etc. the result is always ERROR mounting emmc, cache, etc.
If you have any idea, please do help me how to fix it.
Click to expand...
Click to collapse
Hi,
As there isn't a dedicated forum for your device here try posting your query is in:
> Android Development and Hacking > Android Q&A,Help and Troubleshooting.
You can hopefully find some support there.
Good luck

Samsung Galaxy S4 mini GT-I9195 does not boot

Hi there,
I was given a Samsung Galaxy S4 mini GT-I9195 by friend. The phone unfrotunately does not boot anymore. Upon pressing the power button the phone vibrates and proceeds to the "Samsung Galaxy S4 mini GT-I9195" logo screen. The logo is displayed for a couple of seconds, before the screen turns black. In order to restart the phone you need to remove and reinsert the battery, because pressing the power button does not help.
The phone still runs the original software, as far as I know. So no custom rumos, unlocked bootloaders or the like.
Entering recovery mode I am presented ith the following error message:
E: failed to mount /efs (Invalid argument)
E: failed to mount /system (Invalid argument)
Selecting "wipe cache partition" produces the following error messsages:
E: failed to mount /cache
E: Can't mount / cache/recovery/log
E: Can't open / cache/recovery/log
Selecting "wipe data/ factory reset" produces these errors:
E: format_volume: make_extf4fs failed on /dev/block/platform/msms_sdcc.l/by-name/userdata
Is there any chance left for me to revive the device or do I have a Samsung made paperweight?
Thanks a bunch!
Ron

How to fix 'Encryption Unsuccessful' error in LYF wind 6?

Phone model : LYF LS-5009 (wind 6)
Problem : Unable to boot in system due to Encryption Unsuccessful Error
Things i tried to solve this problem : 1) Reset the phone from recovery mode ( wipe all data)
2) Wipe all cache
3) Installed Software again ( firmware flashed)
I saw one more error in recovery mode UI : E: Failed to mount /cache (Invalid argument)
E: Can't mount /cache/recovery/log
E: Can't open /cache/recovery/log
Etc............
I am attaching all the photos of problem here.