On this page, you will find the direct link to download THL T100S Stock Firmware (flash file) from Mediafire. Firmware contains Flash Tool, Driver and instruction manual.
How to Flash Firmware
Step 1: Download the firmware on your computer or on your mobile.
Step 2: After downloading extract the firmware.
Step 3: You will get update.zip file.
Step 4: Copy the update.zip file the phone sd and flash it through the recovery mode.
[*] Before flashing the above firmware, please take a backup of your personal data. So, that you can easily restore your personal data on your Smartphone and Tablets.