1. Open ut
2. Select oppo tab
3.search a3s and select your model
4. Brom edl and (edl) factory reset
5. Power off phone
6. Hold vol down and power button para sa recovery mode nya
7. Pindutin ng marami si "ver 1.2" para sa download mode ng phone
8. Wait the process and done
2. Select oppo tab
3.search a3s and select your model
4. Brom edl and (edl) factory reset
5. Power off phone
6. Hold vol down and power button para sa recovery mode nya
7. Pindutin ng marami si "ver 1.2" para sa download mode ng phone
8. Wait the process and done
