N9106HD Chinese 10" Tablet Bricked - Need Help Please

[motiv8d]

Hi

I have a Chinese 10" Tablet that boots with a Samsung Splash screen and shows N9106HD.

It is 'rooted' but I do not have write access with ADB

Recently I installed a couple of App2SD program. A reboot worked, then I attempted to change the 'E-mail' app from a system app to a user app.

The tablet rebooted itself and since then attempting to start results in a bootloop showing a flashing "SAMSUNG" on the screen.

The tablet has only 3 buttons, power, up and down.

When stuck on and showing the splash screen, I can connect to the device with adb, however, have limited access and am unable to view/copy data or system (I have been trying to use QtADB for this).

There are 2 alternative boot methods that open another screen:

1. Holding 'pwr' and 'up' simultaneously at boot. This gives a menu of:

Android System Recovery <3e>

Reboot System Now

apply update from ADB

apply update from sdcard

apply update from sdcard2

apply update from cache

wipe data/factory reset

wipe cache partition

(I have wiped the cache partition successfully with this)

2. Holding pwr and 'down' simultaneously at boot.

This gives a menu only in chinese. Trying to access through this menu it seems to be for hardware tests.



Running QtADB starts with an error:

"adbd cannot run as root in production builds so You can't do anything with /system partition. Run Anyway?"



I have found this application adbd-insecure ([Only registered and activated users can see links Click here to register]), however, as I only have some sort of basic recovery access and do not seem to have write access I do not know how I could get this to install so that I could have write access.... catch 22.

I have taken the SDCard out of the tablet for now. It has a 2GB 'Internal' Memory and a 16GB 'Phone' memory. The phone memory is treated by the App2SD as an external SDcard I think.

Plugging into linux with it sitting on the 'samsung' splash screen shows the following device details:
Bus 005 Device 022: ID 0bb4:0c03 HTC (High Tech Computer Corp.)
idVendor 0x0bb4 HTC (High Tech Computer Corp.)
idProduct 0x0c03
bcdDevice 2.55
iManufacturer 2 MediaTek
iProduct 3 MT65xx Android Phone
iSerial 4 0123456789ABCDEF

MTK Droid Root Tools shows:
Hardware : MT6572 (MT6582 is Fake!)
Model : N9106HD
Build number : N9106HD-HL-MT6582-20140823
Build date UTC : 20140809-092351
Android v : 4.4
Baseband v: -----
Kernel v : 3.4.5 (buildserver@buildserver1) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP Sat Aug 9 17:22:21 CST 2014
Free space: system - 43M; data 343M;
Error: SU Inaccessible
Attention: Requests for confirmation on the device screen are possible.
(However, the screen is stuck on the 'samsung' splash)

Can someone please help with recovering this tablet?

TIA