[Fuhu Nabi 2] aicjofs:
Symptoms​

This is for a Nvidia Dreamtab NV08B. Due to a system change you made, or an official Nabi OTA update the tablet now no longer boots.This could be the tablet hanging/frozen/stuck from any point from when turning the tablet on up to the Dreamworks characters screen and never boots any further. You have attempted at least 2 factory reset through the stock recovery and it still does not boot.

NOTE: If your Dreamtab was recently working and you made no system changes, or system updates but is now hanging at the Dreamworks characters try this first: https://xdaforums.com/nabi-2/general/guide-dreamtab-hangs-characters-t3528698

Solution​

Restore the tablet to software version 1.3.12 stock condition: Unlock the bootloader to allow tablet modification. This will wipe ALL the data from the tablet. Format all ext4 partitions and check filesystem integrity. Reinstall recovery, boot, system and addon partitions. Optionally install the fsck binary that is missing on the tablet. Reinstall bootloader

Procedure​

Only for Nvidia Dreamtab NV08B. Use this at your own risk, your warranty is void. You will lose all personal data on the device

To get an understand of how the device works with fastboot, ADB, and recovery read through this :http://xdaforums.com/nabi-2/general/nabi-information-t3229119

You will need to install ADB and fastboot drivers yourself. I have included a copy of Nabilab drivers for 32bit and 64bit computers in the download in the driver folder. Refer to the link above to understand driver installation and booting the tablet to fastboot. This is a script driven restore of the tablet, most of these task are automated.

General flow:

-- Download the Dreamtab_NV08B_restore.zip

-- Extract the zip file to a location of your choosing on your computer.

-- Connect the Dreamtab powered off to your computer via USB cable.

-- If you want to install the driver provided in the zip do it now.

-- Open the file recover_dreamtab file

-- A command prompt opens and the script runs as below. The script has the instructions in it, the below is just a summary.

(automated = script will do it for you. User = you need to take action)

(automated) Extract the files you will need for recovery.

(user) Boot the tablet to fastboot pressing vol+ and power button. Use vol- to select fastboot protocol.

(automated) Check fastboot operational

(user) If script hangs here, user will need to check drivers)

(automated) Initiate bootloader unlocl

(user) Use vol- button to select yes, and vol+ to acknowledge

(automated) Wipes userdata and cache and unlocks bootloader

(automated) Formats data partition

(automated) Boot TWRP 3.0.0 recovery temporarily

(automated) Check data partition integrity

(automated) Format and check cache partition

(automated) Check CPU serial number for TWRP backup

(automated) Push the restore files, bootloader, and fsck patch to Nabi internal storage

(automated) Restore recovery, boot, system, and addon partition files.

(user) Prompt user to install fsck binary that the stock Nabi is missing. I recommend this. but there is a no option.

(automated) Install fsck patch if selected by user

(automated) Install 1.3.7 bootloader

(automated) Remove restore files from tablet

(automated) Reboot

Note: The boot loader is left unlocked. Sometimes you will get a google play service error during first boot.

Download​

AHF Download Link: Dreamtab_NV08B_restore

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