MK813A (same board as MK812A) firmware backup / linux installation

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Hi,
I have this tv box (but the OS recognize only 4GB NAND FLASH instead of 8GB as descibed):

http://www.aliexpress.com/store/product/Built-in-camera-MK813A-RK3188-Quad-Core-Mini-PC-Android-TV-Box-2GB-DDR3-8GB/313905_1076551672.html

This tv box have a camera. WIFI with external antenna, Bluetuth, 2GB DDRIII RAM, 4GB NAND FLASH etc...
You can search the google "MK813" for images...

I opened this tv box, & the board is the same of the below tv box (mk812A):

http://sxv.en.alibaba.com/product/1052612788-213965526/MK812A_Android_4_2_RK3188_TV_Box_Quad_Core_1_6GHz_RAM_1GB_ROM_8GB_Support_Bluetooth_Wifi.html

1. I want to backup the system before I will install ubuntu or another linux on this tv box.
How can I do that?
2. Whan I brouse to site with flash I received message (from adobe site) that this machine didn't have a flash, How can I install the flash for free?
3. Do you know if this tv box support dvb-t usb?
Thanks!

[mitchell4you]

https://github.com/linuxerwang/rkflashkit

Backup: using rkflashkit
Its also usefull.. at installing linux

Flash

http://d-h.st/CtE

Note : most browsers on android no support flash any more
-try using the pre-installed Browser

Goodluck

[[email protected]]

https://github.com/linuxerwang/rkflashkit
Backup: using rkflashkit
Its also usefull.. at installing linux

Flash

http://d-h.st/CtE

Note : most browsers on android no support flash any more
-try using the pre-installed Browser

Goodluck

Thanks You!

1. Should I use the rkflashkit via adb tool?
2. I bought Keyboard with English & Hebrew layout RII mini i8.
How can I switch the lang via this physical keyboard?

Thanks!

[[email protected]]

Is there a manual for rkflashtool?