DESCRIPTION

ROM Mobile Thunderbird I5s /Gold - ROM Android 4.2.2

Official ROM Thunderbird I5s version: A135MW_BS_V1.4_P1MB4_20131212

Gapps include – No Rooted

Language support: Multilang

Install ROM:

- Unpack FlashTools, and Click on Flash_tool.exe
- Select a the MT6572_Android_scatter_emmc.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 !

- You can now safely disconnect your phone and turn it on.

OR OTA

1.copy ****.zip to root folder of the phone SD card (no need to unzip).
2.Turn off the phone, then keep pressing power button and volume+ button until the robot icon appear, then press power button again and it will show as below
3.Press the volume- to move up and down to choose“wipe data/factory reset”, then press volume+ button to confirm.
4.Choose “yes—delete all user data”, then press volume+ button to enter the page as below.
5.It will enter below page after finishing delete all user data.
6.Then choose“apply update from sdcard”
7.Find and select the ROM, press volume+ to enter the page as below.
8.Please make sure the power is sufficient during the upgrading. It will showed as below when the upgrading finished.
9.Choose “reboot system now”,then press volume+ button to reboot your phone.

※Please make a backup of your device before installing or updating ROM