Requirements:
Rooted
MobileUncleTools.apk
Recovery.img
Note: Rename recovery_CTR_30_MyPhoneAguaRio.img to recovery.img
Procedure:
Step 1:Install MobileUncleTools.apk
Step 2: Move the recovery.img in your SDCARD outside the folder which you can see easily.
Step 3: Open Mobile Uncle Tools Grant...
