Database Develop

NO OS installed.... Cant mount

So im stuck with my nexus with no OS... after flashing pure shamu it booted to just a password box... I input my password and it said i had corrupt data. I hit reset... wiped phone... all files GONE... Now what do i do. I cant mount to put recovery on.... I cant do anyting with this phoen right now... anyone had this happen... If so what steps to remedy?

Sounds like you need to try and fastboot the original google files, nuke and repave....

flash the stock img then start again

Flashing stock as we speak... was hoping another optino.... but after years of doing this I kinda know better... live and learn

hell
Hi there, i'm new with Android and my problem is the same as yours on my Nexus 6.
after a failed root, i accidentally deleted all data. Now i'm without OS, boot locked, and the TWRP recovery has been deleted too (when i select recovery mode, it come back to the fastboot menu). i cannot use "fastboot oem unlock"
I don't know what i have to do . I really need help, i just want to restart from the beggining like official rom ...
sry for bad english.

asphalte7 said:
Hi there, i'm new with Android and my problem is the same as yours on my Nexus 6.
after a failed root, i accidentally deleted all data. Now i'm without OS, boot locked, and the TWRP recovery has been deleted too (when i select recovery mode, it come back to the fastboot menu). i cannot use "fastboot oem unlock"
I don't know what i have to do . I really need help, i just want to restart from the beggining like official rom ...
sry for bad english.
Click to expand...
Click to collapse
Try using these fastboot commands:
fastboot format userdata
fastboot format cache

Evolution_Freak said:
Try using these fastboot commands:
fastboot format userdata
fastboot format cache
Click to expand...
Click to collapse
done, what can i do after this ?
it says : created filestystem.... OKAY (with a lot of parameters)

asphalte7 said:
done, what can i do after this ?
it says : created filestystem.... OKAY (with a lot of parameters)
Click to expand...
Click to collapse
Should be able to boot twrp now.

but i have to unlock first ... my device is locked

asphalte7 said:
but i have to unlock first ... my device is locked
Click to expand...
Click to collapse
you cant unlock it without booting up and enabling allow oem unlocking in the developer options

asphalte7 said:
but i have to unlock first ... my device is locked
Click to expand...
Click to collapse
If you can boot to TWRP recovery, then you can ADB push a ROM to recovery and boot it.
Edit: Sorry, I missed the fact that TWRP had been deleted too.

asphalte7 said:
but i have to unlock first ... my device is locked
Click to expand...
Click to collapse
No, if you can boot to TWRP, as @rootSU said, you can move a ROM to internal and get up and running. Then you can go about unlocking.

Evolution_Freak said:
No, if you can boot to TWRP, as @rootSU said, you can move a ROM to internal and get up and running. Then you can go about unlocking.
Click to expand...
Click to collapse
and how can i boot twrp ? i'm like john snow, i know nothing
i only have a console, and a nexus - which cannot exit the "bios"

asphalte7 said:
and how can i boot twrp ? i'm like john snow, i know nothing
i only have a console, and a nexus - which cannot exit the "bios"
Click to expand...
Click to collapse
Power off the device. Once completely shut down, hold power and volume down until bootloader screen appears. Then use the volume keys to select recovery. Then push power to select.

from your original post, it says your not running twrp anymore. have you tried just letting the phone try to boot up? have you tried reflashing twrp to your phone via fastboot. id try, and if its successful, id push a rom to my phone then. if not, try flashing a factory img.

asphalte7 said:
and how can i boot twrp ? i'm like john snow, i know nothing
i only have a console, and a nexus - which cannot exit the "bios"
Click to expand...
Click to collapse
Evolution_Freak said:
Power off the device. Once completely shut down, hold power and volume down until bootloader screen appears. Then use the volume keys to select recovery. Then push power to select.
Click to expand...
Click to collapse
Or, if you are still in fastboot, issue this command > fastboot reboot recovery

Evolution_Freak said:
Power off the device. Once completely shut down, hold power and volume down until bootloader screen appears. Then use the volume keys to select recovery. Then push power to select.
Click to expand...
Click to collapse
as i said before, when twrp has been deleted, the Recovery mode is useless : when i hit it, it instantly return to bootloader screen

asphalte7 said:
as i said before, when twrp has been deleted, the Recovery mode is useless : when i hit it, it instantly return to bootloader screen
Click to expand...
Click to collapse
Then I'm afraid you may be stuck. A RMA may be in your future if no one else can offer a solution.

simms22 said:
from your original post, it says your not running twrp anymore. have you tried just letting the phone try to boot up? have you tried reflashing twrp to your phone via fastboot. id try, and if its successful, id push a rom to my phone then. if not, try flashing a factory img.
Click to expand...
Click to collapse
i left my phone during half an hour on the "Google" screen ....
i cannot flash twrp with fastboot because its locked..
or which command i have to type to install it ?
how can u flash a factory img ? i dowloaded the official 5.1 rom for nexus 6

asphalte7 said:
i left my phone during half an hour on the "Google" screen ....
i cannot flash twrp with fastboot because its locked..
or which command i have to type to install it ?
how can u flash a factory img ? i dowloaded the official 5.1 rom for nexus 6
Click to expand...
Click to collapse
flashing twrp..
fastboot flash recovery recoveryname.img
and flashing a factory img is done while the phone is in its bootloader. there are instruction how here on xda. but to be honest, i dont know if that will work. where did you buy your n6 from btw?

Q|Stuck on bootloop

Hello,
Today charged my phone for few minutes and when I looked at it, it was stuck on logo,
I cant access recovery (gets back to normal bootloader) same for factory
cant unlock boot loader to flash firmware I get >>Check 'Allow OEM Unlock' in Developer Options.
which I cant because it wont boot up.
What are my possibilities?

have you tried holding down the power button until it restarts?

deadwolf666 said:
Hello,
Today charged my phone for few minutes and when I looked at it, it was stuck on logo,
I cant access recovery (gets back to normal bootloader) same for factory
cant unlock boot loader to flash firmware I get >>Check 'Allow OEM Unlock' in Developer Options.
which I cant because it wont boot up.
What are my possibilities?
Click to expand...
Click to collapse
Do you have TWRP installed or stock recovery?

I have restarted the device - same
I have stock recovery

deadwolf666 said:
I have restarted the device - same
I have stock recovery
Click to expand...
Click to collapse
From bootloader, enter the following fastboot command:
fastboot format cache
See if that helps, also you may try:
fastboot format userdata
This may or may not work but worth a shot.

IINexusII said:
have you tried holding down the power button until it restarts?
Click to expand...
Click to collapse
Evolution_Freak said:
Do you have TWRP installed or stock recovery?
Click to expand...
Click to collapse
Evolution_Freak said:
From bootloader, enter the following fastboot command:
fastboot format cache
See if that helps, also you may try:
fastboot format userdata
This may or may not work but worth a shot.
Click to expand...
Click to collapse
Formatted the cache and userdata still bootloops

deadwolf666 said:
Formatted the cache and userdata still bootloops
Click to expand...
Click to collapse
Have you done any modifications to the device? I.E. root, xposed, etc

Evolution_Freak said:
Have you done any modifications to the device? I.E. root, xposed, etc
Click to expand...
Click to collapse
Nope,just charged it for 10 min or so
Sent from my LG-D855 using XDA Free mobile app

Reflash factory images and see if that helps

chris6278 said:
Reflash factory images and see if that helps
Click to expand...
Click to collapse
I cant because the bootloader is locked and I cant unlock it because it wasnt enabled in the developers menu

This is not good ... I had a similar situation and ended up having a replacement sent. Not sure if anyone has come up with a fix yet (I don't believe anyone has), but at the time there was nothing that could be done.

Sounds like you have a clear warranty case... There's nothing you can do except send it back and get a new one.

Gues thats what ill do
Thanks

Locked bootloader and can't boot into ROM or Recovery. (Fixed!)

Well, I really did it this time. In my efforts of messing with the M Preview build and trying to eliminate the "verification failed" startup message I made the mistake of locking the bootloader. Now the phone will not boot into Android or into Recovery. I'm stuck in Bootloader and it won't let me "fastboot OEM unlock" the device because in order to do this you need to boot into Android and tick the box to allow OEM unlocking (which I also unticked before getting into this mess, like an idiot).
EDIT: Got it resolved!
In order to get into Recovery I had to use the following commands in the bootloader:
fastboot format cache
fastboot format userdata
After doing this I was able to boot into recovery. However, recovery showed 0MB available storage and wouldn't mount /data, which prevented me from installing anything. It also wouldn't allow me to copy anything to the SD card using Android File Transfer or ADB sideloading.
To solve this I went into "Wipe" while in recovery and did a full format (the one that requires you to type "yes" before proceeding"
After doing this and booting back into recovery, I had full storage space back and recovery was able to mount /data. At this point I just copy/pasted the 5.1.1 ROM onto the sdcard with Android File Transfer. Once installed, I flashed the ROM and it booted right up.
I then skipped through the setup to get to settings and in developer settings I ticked the box to allow OEM unlocking. After doing that, I booted back into the bootloader and used the fastboot command "fastboot oem unlock" to unlock the bootloader again.
Once that was done I was able to use fastboot commands to flash the M preview all over again.
Hopefully you don't find yourself in this mess, but if you do, I'm hoping the above solution works for you.

sn0warmy said:
Well, I really did it this time. In my efforts of messing the the M Preview build and trying to eliminate the verification failed startup message I really locked up the phone. I locked the bootloader and now the phone will not boot into either recovery or the ROM. It won't let me "fastboot OEM unlock" the device either because it requires me to go into settings and check the allow OEM unlock. However, since I can't boot into the ROM, I cannot do that.
I'm really stuck here. Any ideas?
Click to expand...
Click to collapse
Hope you can RMA it

akellar said:
Hope you can RMA it
Click to expand...
Click to collapse
Well.... s**t.

sn0warmy said:
Well.... s**t.
Click to expand...
Click to collapse
Is TWRP installed?

WAIT!!
I did the following:
- fastboot format cache
- fastboot format userdata
And the phone now boots into TWRP. It won't boot fully but it will boot into recovery. I'm trying to sideload a ROM now but I can't access the storage.
Edit: enabled ADB sideload so I can ADB push a ROM to the SD card to flash. Does anyone know the exact root folder name for the sd card to pusht he ROM to? Is it /data/media/?

I did something similar this past weekend while trying to do the 5.1.1 upgrade with the OTA files before the Factory images were available.
Try and use the WugFresh tool to wipe the cache and such, and try some of the other obvious settings in the tool.
It was late and I'm not 100% sure what I did but I do remember reflashing the LRX22C from the factory image using the tool. Everything I did was from the tool minus the 5.1 OTA that came through once I was able to get back into the device. From there I was able to unlock the bootloader again.
I was worried myself that I might have to send the phone back but I just kept trying, don't give up just yet. I've been told many times it's almost impossible to brick an android device now a days.
Good luck!

sn0warmy said:
WAIT!!
I did the following:
- fastboot format cache
- fastboot format userdata
And the phone now boots into TWRP. It won't boot fully but it will boot into recovery. I'm trying to sideload a ROM now but I can't access the storage.
Edit: enabled ADB sideload so I can ADB push a ROM to the SD card to flash. Does anyone know the exact root folder name for the sd card to pusht he ROM to? Is it /data/media/?
Click to expand...
Click to collapse
Enable MTP in TWRP then drag n drop.

rootSU said:
Enable MTP in TWRP then drag n drop.
Click to expand...
Click to collapse
Can't access device storage.
However, I was able to ADB push the ROM to the SDcard. But when I try and install the ROM it gives me a bunch of errors saying "unable to mount '/data'" and "unable to mount storage"
Ideas?

sn0warmy said:
Can't access device storage.
However, I was able to ADB push the ROM to the SDcard. But when I try and install the ROM it gives me a bunch of errors saying "unable to mount '/data'" and "unable to mount storage"
Ideas?
Click to expand...
Click to collapse
Assuming you tried ticking data in twrp mounts...
In twrp, try and format data again. If that fails, try to format it as another file system such as f2fs before formatting it back to ext4

rootSU said:
Assuming you tried ticking data in twrp mounts...
In twrp, try and format data again. If that fails, try to format it as another file system such as f2fs before formatting it back to ext4
Click to expand...
Click to collapse
Success!
TWRP was also reporting 0mb available storage. I went into Wipe and performed a full format. Booted back into recovery and storage was showingt he full amount again. I was then able to plug the phone in and enable MTP and drag/drop the 5.1.1 ROM onto the SD card. Just flashed it and it booted right up!
I'm going to update the OP with all this info just in case someone else runs into the issue and needs help.
Thanks for your help!

sn0warmy said:
Well, I really did it this time. In my efforts of messing with the M Preview build and trying to eliminate the "verification failed" startup message I made the mistake of locking the bootloader. Now the phone will not boot into Android or into Recovery. I'm stuck in Bootloader and it won't let me "fastboot OEM unlock" the device because in order to do this you need to boot into Android and tick the box to allow OEM unlocking (which I also unticked before getting into this mess, like an idiot).
Click to expand...
Click to collapse
Hi,
I faced the same condition like you experienced, with some differences:
- the phone stuck in "Google" logo
- stock recovery is accessible from bootloader
- I am unable to mount sdcard or install rom from sd card, but could conduct adb sideload
However, am stuck with verifying update package showing :
E: footer is wrong
E: signature verification failed
any ideas what to do next?
================ edited- add below info on how I got stuck
So my N6 was still on 5.0 (has not been updated to 5.1). I decided to try the M preview. I downloaded the preview, and began the process as follows:
1. reboot into bootloader
2. fastboot oem unlock
3. flash-all (success on loading the bootloader and radio, but error on updating the image)
4. hence i followed to flash individually:
fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot erase cache
fastboot flash cache cache.img
5. and comes the stupid thing ! --> fastboot oem lock (really really regret why I did this)
6. and then once reboot, it stuck in Google logo forever
However, I am still able to access:
- bootloader (fastboot recognize the device, but wouldn't allow me to fastboot oem unlock)
- able to go to stock recovery, and as mentioned above:
I am unable to mount sdcard or install rom from sd card, but could conduct adb sideload
However, am stuck with verifying update package showing :
E: footer is wrong
E: signature verification failed
I tried to adb sideload the M preview image and 5.1 LMY47I but both showing the above error....
hope you can shed some light on this...

Please does anyone have a solution to this? please help me

Iambenqazy said:
Please does anyone have a solution to this? please help me
Click to expand...
Click to collapse
A solution to what? Keep in mind your problem may be different from the OP's issue, so if you want people to help you it's necessary to provide plenty of information, such as what you were trying to do, how you tried to do it, and any other information that you believe may be useful.

Strephon Alkhalikoi said:
A solution to what? Keep in mind your problem may be different from the OP's issue, so if you want people to help you it's necessary to provide plenty of information, such as what you were trying to do, how you tried to do it, and any other information that you believe may be useful.
Click to expand...
Click to collapse
.
OK What i was trying to do was to flash a stock recovery, i start it by running the flash-it all.bat file in the factory image zip, it changed the user interface of the bootloader after first reboot and and had an error for "archive: recovery.sig not found" (something like). the phone status shows Software Version: Modified and fastboot oem unlock dont give the confirmation.
and
now my phone wont even boot to the bootloader, everything turned black. please hellp!!!!:crying::crying:

If you can't even get into the bootloader (volume down and power) you may have to have the device serviced. Do you get a response when you type "adb devices"?

Iambenqazy said:
.
now my phone wont even boot to the bootloader, everything turned black. please hellp!!!!:crying::crying:
Click to expand...
Click to collapse
Maybe it just crashed at a black screen? Does a very long press of the power button (over 10 secs) cause it to react?
Or maybe the battery is empty? Try connecting the power supply for some time.

i did that but no response.

Iambenqazy said:
i did that but no response.
Click to expand...
Click to collapse
The very dead battery is a real possibility. The thing is, using the charger that came with the phone isn't going to help. If you think the battery being dead is a possibility, you would need to plug the phone into a USB port on a PC, that is a very slow charge. Leave it on there overnight then unplug and replug. If the led at the top of the screen lights or the battery icon shows on the screen, you have hope. At this point using the original charger should get the battery going again. In this case, plan on replacing the battery.
"Good judgment comes from experience, and a lot of that comes from bad judgment." - Will Rogers

TWRP failed to boot up

Hi guys~
so recently i was trying to flasha custom rom for my moto g5s plus and already unlock the bootloader, but when i flash the new twrp(3.2.0.1) and reboot to recovery mode this error comes up
Start up failed:
Your device didn't start up successfully.
Use the software repair assistant on computer
To repair your device.
Connect your device to your computer to get the software repair assistant.
IN RED - AP Fastboot flash mode (secure)
USB connected
.....
......
In red - failed to load kernel !
Boot up failed
Click to expand...
Click to collapse
so how to fix this guys? i already tried to do some research for my problem but its useless it was still not working
big thanks for you guys~

solved thx!

Could you possibly share how you fixed this?

Hymix said:
Could you possibly share how you fixed this?
Click to expand...
Click to collapse
First make sure you are using the right version for your build.. After you install it via fastboot, from there go to the recovery menu, up, down volume. When in there wipe data.. Some say factory reset, but I wiped data which did the same thing, and now it works.

help
doubledragon5 said:
First make sure you are using the right version for your build.. After you install it via fastboot, from there go to the recovery menu, up, down volume. When in there wipe data.. Some say factory reset, but I wiped data which did the same thing, and now it works.
Click to expand...
Click to collapse
Hello, I have the same problem when trying to start the TWRP, I want to try this solution but the Google Translator is bad and it is not understood. Can you explain it again please?

NelsonFa01 said:
Hello, I have the same problem when trying to start the TWRP, I want to try this solution but the Google Translator is bad and it is not understood. Can you explain it again please?
Click to expand...
Click to collapse
Install the Version of TWRP for your device. Use Fastboot boot twrp-x.x.x-x.img Twrp should boot into recovery automatically.. Once in there go to wipe>advanced wipe and wipe data only reboot.

TWRP recovery not boot
tart up failed:
Your device didn't start up successfully.
Use the software repair assistant on computer
To repair your device.
Connect your device to your computer to get the software repair assistant.
i have Moto 4g Plus please help
TWRP recovery not boot

Mi 11T not booting (no help needed anymore)

A little Background: I installed a module that broke my g-apps, so I tried to update my rom from 14.0.1.0 to 14.0.2.0 (EEA).​​The problem: I flashed the fastboot rom through Mi Flash. Now my phone is stuck in a loading animation when booting (I can access adb commands, but still can't access my files).​​I tried everything I could think of, but it just won't boot... I didn't make a backup and I don't want to lose my files if there's any way to avoid that.​​A very weird thing though: It gets really close to booting: it even applies reading mode and connects to adb, but the loading screen doesn't disappear.​when I do "adb reboot" the system clock flashes for a second. When I touch the fingerprint sensor it vibrates.​​THERE IS NO TWRP FOR MY DEVICE​​Thank you so much for your help!​​

Did you try safe boot?

surajpai524 said:
Did you try safe boot?
Click to expand...
Click to collapse
Yes, unfortunately it didn't help

The flashing script has a line saying "fastboot %* erase expdb".
There is no image named expdb in the images folder.
Does this mean this partition was uninstalled but not installed afterwards?
Could this be the issue?
Where do I get an expdb.img from so I can flash it again?

Try posting this in MI11T forums instead of Magisk.

I accepted my faith and did a full reset.
My files are gone now, but at least my phone is alive.
Thanks for helping!
surajpai524 said:
Did you try safe boot?
Click to expand...
Click to collapse