Download latest Android KitKat 4.4.2 stock firmware for Cube TALK79 U55GT-C8 tablet from here or here. Download another Cube firmware from here.

Archive: U55GT-C8_V1.0_20140902
Firmware: Android KitKat 4.4.2
Model: Cube TALK79 U55GT-C8 tablet
Image file size: 471 MB
Platform: Mediatek MT6592
Project: htt92_tb_tdw_kk
Baseband: MT6592_S00_MOLY_WR8_W1328_MD_TG_MP_V18_1_tg_n
Config_version: V1.1.2


Install firmware
- Unpack FlashTools, and Click on Flash_tool.exe
- Select a the MT6592_Android_scatter.txt in ROM
- Wait file to be added into Flash Tool
- choose Option->USB Model,click USB Model
   –> Choose Option->DA DownLoad All->Speed->High Speed, click High Speed
- Turn off your phone, remove the battery.
- "Press F9 (hit Download button)" OR " if upgrade ROM Firmware->Upgrade "
- and connect your phone into the computer via USB data cable.
- The process will start and a red progress bar will appear after color purple, yellow.
- And green circles display
- Finish !
- You can now safely disconnect your phone and turn it on


Here you have a video tutorial on how to upgrade to KitKat another MT6592 CPU smartphone, E-ceros One.  

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