Download Android Jelly Bean 4.2.2 stock firmware for Cubot GT89 smartphone from here or from here. Download another Cubot firmware from here.
Archive name: GT89 / KE4CN2L2HA8A2A /4GB+8Gb
Archive file size: 243 MB
Model: Cubot GT89 smartphone
Project: ratech89_we_rlk_jb2
Platform: Mediatek MT6589
FW version: G803_D1_CUBOT_ALPS.JB2.MP.V1.3_20131128
Baseband: MT6589_S00_MOLY_WR8_W1248_MD_WG_MP_V6_P14
Upgrading notes (see this video tutorial)
1 – Download & unpack FlashTools. Run Flash_tool.exe
2 – Unpack Rom in folder
3 – Select MT6589_Android_scatter.txt in folder on rom. And wait.
4 – Check Option->USB Model, click USB Model
Choose Option->DA DownLoad All->Speed->High Speed, click High Speed
5 – Turn off your phone, remove the battery.
6 -"Press F9 (or hit Download button)"
7 – Connect your phone into the computer with USB data cable.
8 – The process will start and a red progress bar will appear after color purple, yellow.
9 – And green circles display.
10 – Boot your phone !
11 – Restart !
12 – Enjoy !
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