Nexus 7 Only TWRP 2012 - Nexus 7 Q&A, Help & Troubleshooting

I have a Nexus 7 with a locked bootloader and only TWRP on it. No Android OS on it of any type or version. Can't unlock it as computer can't recognize the device after installing drivers from Android Toolkit. USB debugging setting is unknown. Even installed WUGFresh on my computer and no go with that software. Any ideas what I can do?

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[Q] fastboot mode inoperative

One N7, strictly stock, is recognised in Win 7 and in fastboot mode i.e no issue.
The other N 7 is root and unlock.
Under Win 7 home premium:
All of a sudden it is not recognised and device manager shows Android composite adb interface
but the windows driver is missing ( when I plug it Win 7 is not showing that a driver is installing).
There is no mention of N 7, not even a yellow exclamation point, let alone no mention of portable devices.
In adb mode the N 7 is recognised. Bootloader is accessible but fastboot devices does not show the N 7.
I cannot access CWM recovery 6.0.1.0 neither through bootloader nor from Rom manager.
This N 7 has stock JB 4.1.2 (JZ054K). I have installed SuperSU, Rootkeeper and Rom Manager.
Under Win 7 professional it is recognised, it shows in device manager and in adb but not in fastboot mode after going in bootloader mode, and still cannot access recovery mode (waiting for device if I try to do that).
I need help to solve this issue. Thank you
I prefer not to use a toolkit.

[Q] Bricked my Nexus 7

Ok, so I was updating my bootloader to the newest bootloader (4.23) and managed to get an incorrect flash. My N7 will not boot, not even to the bootloader screen. My computer still recognizes that a usb device is plugged in but I can't access it with adb or fastboot. Any ideas on how to salvage my nexus 7?

Nexus 7 (2012) Driver Problems...

Hey Everyone,
Backstory: Softbricked my nexus 7 - its now in a bootloop. I am running Cyanogenmod 10.0 (I believe), Rooted and running ClockworkMod Recovery, and am NOT USB Debugging Enabled. Now in the process of reflashing Nakasi JZO54K (4.1.2) to soft-bricked Nexus 7 via fastboot.
I'm trying to access my nexus 7 (2012) via adb but my computer will not recognize my device. I am currently following Comminus's flashing guide, but I can't even get my computer to recognize my device via the command prompt "adb devices" - nothing comes up.
I have tried to install/update the usb drivers with the ones from Asus's website - those did not update the drivers. I also tried using the drivers i downloaded through the android sdk located in the android sdk folder (C:/user/AppData/Local/Android/android-sdk/extras/google/usb_driver) and those did not successfully update the drivers either. But my device is being recognized in the device manager "grouper" rather than "android".
I might be what in Comminus's words, "driver hell". But I don't know what that means or what to do from there...please help anybody!

Cannot use Adb/fastboot commands on Nexus 7 (2012)

I Softbricked my nexus 7 a while back its now in a bootloop. I am running Cyanogenmod 10.0 (I believe), Rooted and running ClockworkMod Recovery, and am NOT USB Debugging Enabled. Now attempting to reflash Nakasi JZO54K (4.1.2) to soft-bricked Nexus 7 via fastboot.
I'm trying to access my nexus 7 (2012) via adb command prompts will not recognize my android device - serials do not appear when "adb devices" is typed.
I am currently following Comminus's flashing guide. When I go to device manager in windows, the android device is named "grouper" rather than "android" as I have seen before.
I don't think the root toolkit will solve this because I don't think I can even send commands to the device at this point.
Please help someone...I really don't know where else to look for help about this.
adb commands don't work in fastboot. Only fastboot commands work in fastboot.
Download the factory image from Google, extract, and run the flash all batch script while your N7 is connected in fastboot mode.

Nexus 6P Not Recognized In Bootloader Mode

I was trying to flash the latest images on my 6P, but it's not recognized in Bootloader/Fastboot mode. It boots to the logo, then reboots into TWRP. It's recognized by adb in recovery, but if I try and boot into boot-loader, it no longer is recognized.
I have tried in Windows 10, and Linux. Previously it was recognized. I am thinking that when I flashed the latest image, I didn't enable USB debugging. But it's odd that it can be recognized in TWRP and not bootloader.
I tried wiping data, but that didn't work.
(Yes I have the latest usb drivers for both windows and linux.)
dratsablive said:
I was trying to flash the latest images on my 6P, but it's not recognized in Bootloader/Fastboot mode. It boots to the logo, then reboots into TWRP. It's recognized by adb in recovery, but if I try and boot into boot-loader, it no longer is recognized.
I have tried in Windows 10, and Linux. Previously it was recognized. I am thinking that when I flashed the latest image, I didn't enable USB debugging. But it's odd that it can be recognized in TWRP and not bootloader.
I tried wiping data, but that didn't work.
(Yes I have the latest usb drivers for both windows and linux.)
Click to expand...
Click to collapse
What exact command are you typing while booted in the bootloader?
Sent from my Nexus 5X using Tapatalk
SlimSnoopOS said:
What exact command are you typing while booted in the bootloader?
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
first i try adb devices, which returns nothing while in bootloader:
adb devices
List of devices attached
But when in TWRP I get:
List of devices attached
5VT7N15A28001306 recovery
So I can't seem to flash when in bootloader. I tried installing an OTA from TWRP but I get
error 7
Which makes no sense since it's an Angler Zip file for the Nexus 6P.
D'OH! I should have been using FASTBOOT in bootloader and I was using ADB, D'OH!
dratsablive said:
I was trying to flash the latest images on my 6P, but it's not recognized in Bootloader/Fastboot mode. It boots to the logo, then reboots into TWRP. It's recognized by adb in recovery, but if I try and boot into boot-loader, it no longer is recognized.
I have tried in Windows 10, and Linux. Previously it was recognized. I am thinking that when I flashed the latest image, I didn't enable USB debugging. But it's odd that it can be recognized in TWRP and not bootloader.
I tried wiping data, but that didn't work.
(Yes I have the latest usb drivers for both windows and linux.)
Click to expand...
Click to collapse
Have you opened developer options and made sure that USB debugging is definitely enabled. Maybe try the Nexus root toolkit to see if that helps. Also, you could try plugging your device in while in bootloader and check device manager. There may be something unrecognised or with a yellow triangle with a name like bootloader interface. If you see that then you could try installing the driver for it.
DEVILOPS 007 said:
Have you opened developer options and made sure that USB debugging is definitely enabled. Maybe try the Nexus root toolkit to see if that helps. Also, you could try plugging your device in while in bootloader and check device manager. There may be something unrecognised or with a yellow triangle with a name like bootloader interface. If you see that then you could try installing the driver for it.
Click to expand...
Click to collapse
Please see comment above yours.

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