The machine you move into recovery mode by (Remember to back up all the data necessary for the machine: contacts, text messages, app, image ….)
2. Press the power button + Volume Down
Note: The recovery has supported touch feature for people to easily manipulate
Step 1: Choose the language, here I will choose the English language.
Step 2: Recovery screen will appear like this, select wipe data / factory reset to clear out old data rom
Chọn “Wipe data and Cache”
Step 3: After deleting all data – Select “Install from SD” (can be controlled by touch or by volum up volum down button to choose)
Step 4: choose File FW you just copy
Wait a moment and installing process select “reboot”
Wait 5-10 minutes for the initial boot process completes.