Download Android KitKat 4.4.2 stock Firmware for THL 4000 smartphone from here or here. Download OTA zip file from here or here.
Archive name: thl.4000.168B.1479M.8P64-FL / thl_4000_target_files-package
Archive file size: 472 MB / 478 MB
Image: thl.4000.168B.1479M.8P64.QHD.EN.COM.20141128.MT6582KK.GC5004
Platform: MT6582
Project: bird82_cwet_a_kk
Config_version: V1.1.1
Build number: android-user 4.4.2 KOT49H eng.ouyangxian.1417166099 test-keys
Baseband: MT6582_S00_MOLY_WR8_W1315_MD_WG_MP_V34_1_wg_n
Platform: MT6582
Project: bird82_cwet_a_kk
Config_version: V1.1.1
Build number: android-user 4.4.2 KOT49H eng.ouyangxian.1417166099 test-keys
Baseband: MT6582_S00_MOLY_WR8_W1315_MD_WG_MP_V34_1_wg_n
