Download latest Android 4.2.2 Jelly Bean stock firmware for Jiayu F1 smartphone from here or here. Download previous firmware from here. Download another Jiayu firmware from here.
Archive name: MP_mt72_z27cl_f1ww_jyt_jb3_wcdma_sw_mul_20141027
-165454_songlixin_PC
Archive file size: 257 MB
Support: Mediatek MT6572
Project: vanzo72_wet_jb3
Config_version: V1.1.1
Baseband: MT6572_S00_MOLY_WR8_W1319_MD_TG_MP_V1_1_tg_n
Installing ROM
- Unpack FlashTools, and Click on Flash_tool.exe
- Select a the MT6582_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- "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.