Database Users

[Q] Can only boot into recovery without menu

Hi there,
i bought a used nexus 7 (2012/1st gen) which only boots into recovery (cwm v6.0.2.3) but doesn't show the menu. Only the cwm logo in the center and the version at the bottom left. (see picture attached)
I can't boot into fastboot (Vol Down+Power). This only leads to recovery again. But as mentioned above there's no content, no menu.
The previous owner told me he tried to flash Cyanogenmod 11 which failed and since then it is stuck in this behaviour.
I'm on ubuntu 14.04 and installed android-tools-fastboot and android-tools-adb.
With adb i can get a shell on the device in recovery mode but don't know what to do from there.
"adb reboot bootloader" doesn't work, the device is not responding
Can anyone help or am i doomed?
Update: I downloaded latest TWPR for "grouper" (2.7.1.1) and tried
" adb shell flash_image recovery openrecovery-twrp-2.7.1.1-grouper.img "
which lead to
" failed with error: -1 "

on step futher...
Update:
I was able to get into the bootloader with this method:
http://forum.xda-developers.com/showpost.php?p=53587109&postcount=74
(thx acotica)
Now i am trying to flash the stock rom of the nexus 7 (https://developers.google.com/android/nexus/images?hl=de)
But i am not able to flash the bootloader. The version now is 4.18 and i can neither downgrade or upgrade. fastboot always gives me an error and won't proceed since it would need the bootloader to be 4.23
any help?

Flashing the stock image didn't work as expected.
Bootloader not working anymore
The device is now stuck at the google splash screen with the little open lock below.
I can't enter fastboot anymore, Power+Vol Down kicks me straight to the screen mentioned above...
The device is not recognized by adb or fastboot anymore...
Any hints how i should proceed?

No way out (bricked)

I was on oxygen 3.0.2, so i decided to root my phone, first of all i unlocked my bootloader, but after the install of the root zip file, i got stuck in a bootloop, no way out i can't sideload or mount storage, i can access to recovery and fastboot so.. if u may help me to flash any another rom or just turn back to stock i'll be glad!
recovery: ok
fastboot: ok
no adb
bootloop
EDIT:
when the device is off, with command "adb devices" says:
<serialnumber> unauthorized

tried qualcomm usb mode?

K53a48 stuck on TWRP recovery

Hey guys my K6 note is stuck on TWRP recovery even after I reboot it in system , recovery , power off and bootloader. I can't install any rom it shows zip file is corrupted. when I checked through minimal adb and fastboot command "adb devices" it shows nothing. I can't even boot into fastboot. Please help me!!

[ROOT] I can boot in fastboot, but it says "waiting for device". I installed a lot of drivers, what to do?

I unlocked the bootloader, the FRP too.
Now I need to flash the TWRP image with the command "fastboot flash recoery_ramdisk twrp.img" because it is a partition A only.
Those are the steps I take:
1) connect USB the device
2) enable USB debugging
3) adb reboot bootloader
4) the phone boots with the fastboot screen
(it says PHONE unlocked, FRP unlocked)
5) I put the command: "fastboot flash recoery_ramdisk twrp.img" (I have twrp.img in the same folder as the adb)
6) the console gives me <waiting for the device>
I red around a lot, and in a lot of threads even here on XDA it says it's adriver issues, so I isntalled Universal ADB driver, then 15 seconds adb drivers, the n tried to downlowad the Hi Suite but it doesn't even start (I have Win 10)
Additional info:
The boot loader is unlocked, also in the settings (I used potatoNV method)
I have EMUI 5.0.3
Android version 7
Number model PRA-LX1
What to do guys?

cocclina said:
I unlocked the bootloader, the FRP too.
Now I need to flash the TWRP image with the command "fastboot flash recoery_ramdisk twrp.img" because it is a partition A only.
Those are the steps I take:
1) connect USB the device
2) enable USB debugging
3) adb reboot bootloader
4) the phone boots with the fastboot screen
(it says PHONE unlocked, FRP unlocked)
5) I put the command: "fastboot flash recoery_ramdisk twrp.img" (I have twrp.img in the same folder as the adb)
6) the console gives me <waiting for the device>
I red around a lot, and in a lot of threads even here on XDA it says it's adriver issues, so I isntalled Universal ADB driver, then 15 seconds adb drivers, the n tried to downlowad the Hi Suite but it doesn't even start (I have Win 10)
Additional info:
The boot loader is unlocked, also in the settings (I used potatoNV method)
I have EMUI 5.0.3
Android version 7
Number model PRA-LX1
What to do guys?
Click to expand...
Click to collapse
Hi There.
change you rcovery image file name to "twrp.img" and move them to c:/ partition.
then enter the command bellow : fastboot flash recovery c:/twrp.img
NOTICE : Of course, I installed twrp custom recovery on my huawei p8 gra-ul00 phone and im very regretted.
And you're doing this at your own risk.
Regards,

fastboot waiting for any devices

Hello. I'm a newbie to these kinds of things. This secondhand phone that I bought has a HavocOS, so I've been meaning to change it. I successfully got ArrowOS 12.1 for my phone, but then I couldn't access TWRP (screen remains at the TWRP 3.23 logo). I assumed that perhaps I should reinstall the TWRP, so I tried to follow the guide in https://twrp.me/asus/asuszenfonemaxprom1.html. My phone successfully entered into fastboot mode, but when I enter the "fastboot flash recovery twrp.img" command, it says <waiting for any devices> . Where did I go wrong and how do I fix this?
Thank you in advance.

Oh, and I followed this https://forum.xda-developers.com/t/...ng-up-in-fastboot-mode-windows-10-11.4194491/ and "android" showed up in my device manager, but cmd still says <waiting for any devices>