Download Android Jelly Bean 4.2.2 Stock Firmware for Lenovo S898t smartphone

Download Android Jelly Bean 4.2.2 Stock Firmware for Lenovo S898t smartphone from here or here. Download previous firmware from here. Download another Huawei firmware from here.

Archive name: Lenovo-S898t+_S922_VIBEUI_V2.0_1437_7.3.1_ST_Lang-P_N_DT
Archive file size: 653 MB
Model: Lenovo S898t smartphone
Support: MediaTek MT6592
Project: MTDTtest
config_version: V1.1.2
 

Install ROM 
- 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!
 

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