Database Users

[Question] Erase System?

I've been trying to erase the system and it gives me this command
C:\AndroidSDK\tools>fastboot erase system -w
erasing 'system'... FAILED (remote: not allowed)
Any thoughts?

Nexus 7 major issues, may be bricked, guides don't seem to account for my problem

Hi, this forum seems pretty active, which is exciting! Hopefully someone can help me out here. I have searched a bunch and see a lot of similar things to my problem, but I'm running into issues that aren't really described by anything else I am looking at.
Quick background
The device is a 2013 Nexus 7, Wi-Fi version. I never unlocked/rooted the device, so it was basically factory settings. On Thursday everything was working fine. Later that day, it started showing the message "unfortunately the process google.process.gapps has stopped" as soon as I unlocked, even after rebooting. I was not launching any apps. I could navigate for about 1 second every time I hit "OK" on the error before it popped back up, so I tried all the fixes I had found online for the problem (clearing app cache/preferences, disabling/enabling download manager, etc). I decided just to wipe the device and reset from factory defaults. I wasn't confident in the Factory Reset working correctly while the error kept popping up, so I booted into Recovery Mode and just decided to do the Factory Reset from there.
The reset seemed to freeze, but eventually the device rebooted and I got the text "erasing" with the animated robot. This will stay that way for forever, though sometimes it eventually turns into the android icon with the red exclamation mark.
The current problem
Right now, if I boot the device normally, it will show the google logo, then go into "Erasing", which animates. If I hit Power+volume up, it seems to be "erasing /data" but it never gets further than that. If I turn it off, it will turn itself back on and go back to erasing. I have left it on for 14+ hours and it never progresses, other than the times it sometimes stops showing "Erasing" and instead just goes to the red exclamation mark.
I can get to the bootloader menu by holding volume down+power. If I select recovery mode, it shows the Android animating logo (no text) and if I hit Power+Volume Up it shows "Formatting /data..." in the bottom. Eventually this fails and recovery mode will pop up with the following text at the bottom:
Code:
Formatting /data...
E:failed to mount /cache (Invalid Argument)
Formatting /cache....
E:failed to mount /cache (Invalid Argument)
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:failed to mount /cache (Invalid Argument)
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
etc for last_install, last_kmsg, log, and then repeated all again 1 more time
E:Failed closing /dev/block/platform/msm_sdcc.l/by-name/misc (I/O error)
E:Failed to mount /cache (Invalid argument)
If I select "Factory reset/wipe" now, it shows the following:
Code:
--Wiping data...
Formatting /data...
then all of the above errors again
I tried downloading and installing the Nexus Root Toolkit and running the "Flash Stock + Unroot" iwth the "Soft-bricked/bootloop" option, but all it seems to do is restart the device a bunch of times and then get stuck on "erasing 'userdata'...
Code:
Flash Stock + Unroot...
--------------------------------------------------
sending 'bootloader' (3911 KB)...
FAILED (remote: Bootloader is locked.)
finished. total time: 0.008s
rebooting into bootloader...
OKAY [ 0.006s]
finished. total time: 0.007s
sending 'boot' (7256 KB)...
FAILED (remote: Bootloader is locked.)
finished. total time: 0.008s
rebooting into bootloader...
OKAY [ 0.007s]
finished. total time: 0.008s
erasing 'cache'...
OKAY [ 0.145s]
sending 'cache' (4664 KB)...
FAILED (remote: Bootloader is locked.)
finished. total time: 0.153s
rebooting into bootloader...
OKAY [ 0.007s]
finished. total time: 0.008s
sending 'recovery' (7860 KB)...
FAILED (remote: Bootloader is locked.)
finished. total time: 0.007s
rebooting into bootloader...
OKAY [ 0.007s]
finished. total time: 0.008s
erasing 'system'...
OKAY [ 0.732s]
sending 'system' (822754 KB)...
FAILED (remote: Bootloader is locked.)
finished. total time: 0.740s
rebooting into bootloader...
OKAY [ 0.007s]
finished. total time: 0.008s
erasing 'userdata'...
Any suggestions on how I might be able to repair my device? It seems completely screwed up, I have no experience with the flashing/bootloading stuff.
Thanks!

L5 E610 - bricked - only fastboot - Secure booting error

Hello out there,
I get a used L5 for my little son, tryed to clear all data (factory reset) and it just partically worked, some data always survied.
I thougt, no prob, then I use recovery. when I tried to boot the recovery mode I saw the Message:
Secure booting error! Cause: boot certification verifiy
HM!
OK Lets try to install a custom recovery (first rooted with kingo, then install twrp 3 with dd)
Jet I only get the Message on booting nothing else is possible. fastboot is available.
Update the ROM with KDZ updater dosn`t work " No connection to phone"
I need *.img files that I can use with fastboot. I tryed to convert a kdz with two tools I found ( a python script and a tool developed for the G series) but that dosn`t work.
Is there a simple way to convert a ZIP to a IMG?
I tryed "fastboot boot recovery.img" and to flash it, but that also dosn`t work (orig. and TWRP)
I also get this:
Code:
C:\Users\mariu>fastboot erase userdata
erasing 'userdata'...
FAILED (status read failed (Too many links))
finished. total time: 2.489s
C:\Users\mariu>fastboot erase cache
erasing 'cache'...
FAILED (status read failed (Too many links))
finished. total time: 2.487s
C:\Users\mariu>fastboot -w
Erase successful, but not automatically formatting.
File system type not supported.
Erase successful, but not automatically formatting.
File system type not supported.
erasing 'userdata'...
FAILED (status read failed (Too many links))
finished. total time: 2.476s
C:\Users\mariu>fastboot flash boot C:\Temp\L5\boot.img
sending 'boot' (4864 KB)...
OKAY [ 0.463s]
writing 'boot'...
OKAY [ 1.330s]
finished. total time: 1.800s
THX for help

P8 (GRA-L09) stuck at boot logo

I tried to update my stock ROM (via the stock roms updater), but it just booted to boot logo and nothing happened.
The same issue using the dload method (external SD card Vol+- and power)
So I used the UpdateExtractor and flashed recovery,recovery2, boot, system and cust in fastboot mode.
Now the device is still stuck at boot logo, maybe because I did not wipe cache and user data.
when I try to do so, I get
fastboot.exe -w
wiping userdata...
Erase successful, but not automatically formatting.
Can't determine partition type.
FAILED (remote: Command not allowed)
erasing 'userdata'...
FAILED (remote: Command not allowed)
finished. total time: 0.002s
fastboot.exe erase cache
erasing 'cache'...
FAILED (remote: Command not allowed)
finished. total time: 0.003s
fastboot.exe format cache
FAILED (remote: Command not allowed)
fastboot.exe erase userdata
erasing 'userdata'...
FAILED (remote: Command not allowed)
finished. total time: 0.004s
fastboot.exe format userdata
FAILED (remote: Command not allowed)
Click to expand...
Click to collapse
I cannot boot into recovery (vol+ and power causes stuck at boot logo as well - no matter whether its twrp or stock recovery)
And, as the modern phones are cleverly designed without removable battery: how can I turn the device OFF ?

I have exactly the same problem. When in Fastboot&Rescue mode, phone shows phone locked, FRP Lock

[Q] Nexus 7 (2012) cannot get into recovery mode

Hello all,
I wanted to flash stock + unroot my device with the Nexus Root Toolkit from WugFresh but obviously something went wrong.
target didn't report max-download-size
sending 'bootloader' (2100 KB)...
OKAY [ 0.312s]
writing 'bootloader'...
FAILED (remote: (Unknown error code))
finished. total time: 0.453s
rebooting into bootloader...
OKAY [ 0.031s]
finished. total time: 0.036s
< waiting for any device >
Now the only thing i can do is to boot into the bootloader mode manually. Usb debugging is not enabled and I have no idea how to do that with the device in this state.
fastboot devices gives me the following output:
C:\Program Files (x86)\WugFresh Development\Nexus Root Toolkit\data>fastboot devices
015d3c269c3bf404 fastboot
I can also boot into TWRP:
C:\Program Files (x86)\WugFresh Development\Nexus Root Toolkit\data>fastboot boot twrp-3.2.3-0-grouper.img
downloading 'boot.img'...
OKAY [ 1.229s]
booting...
OKAY [ 0.021s]
finished. total time: 1.254s
In this state I can also enter adb commands:
C:\Program Files (x86)\WugFresh Development\Nexus Root Toolkit\data>adb devices
List of devices attached
015d3c269c3bf404 recovery
But here I am stuck and I cannot mount the partitions. I tried to repair the file system, i.e. wipe -> advanced wipe -> select partitions to wipe (e.g. system) -> swipe to wipe gives the following output:
Failed to mount '/system' (Invalid argument)
Failed to mount '/cache' (Invalid argument)
Failed to mount '/data' (Invalid argument)
...done
Unable to mount storage
If I select in TWRP reboot to bootloader the screen stays black. The only thing left is to press the power button + volume down and then I am again back in the bootloader mode.
fastboot reboot-bootloader does not bring me back in the bootloader mode.
I tried to flash the boot partition with NRT and get the following output:
Checking ADB/FASTBOOT Connectivity
adb devices
fastboot devices
015d3c269c3bf404 fastboot
+ Fastboot Device Connected
Flashing Stock Kernel to BOOT partition...
fastboot flash boot "C:\Program Files (x86)\WugFresh Development\Nexus Root Toolkit\data\Stock_Kernel\stock_kernel_nakasi_5.1.1_LMY47V.img"
Rebooting your device...
Done!
adb devices
fastboot devices
???????????? fastboot
Is there any hope that I get this device working again? I have no more idea what to do and I would appriciate any help.