Download Android Jelly Bean 4.2.2 stock firmware for Cubot GT90 smartphone from here or from here. Download another Cubot firmware from here.
Archive name: Cubot GT90 software SD Card upgrade
Archive file size: 245 MB
Model: Cubot GT90 smartphone
Project: eastaeon72_wet_jb3
Platform: Mediatek MT6572
FW version: SAGA-3251-CE-QB125D-M536-6572MIDV1.0.1-20130909
Baseband: MT6572_S00_MOLY_WR8_W1315_MD_WG_MP_V1_P1_1_wg_n
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