Tested on all opo a39
Files
- Downgrade/fixed vibrate : A39_CPH1605_FIXED.rar
- File upgrade to MM : CPH1605EX_11_OTA_001_all_201703252034_wipe.zip
- twrp-3.0.1-0-tritlexx.img
Downgrade
- Turn off phone, dont connect to usb!
- Ektrack A39_CPH1605_FIXED.rar
- Run spflashtool
- Choose scatter file (MT6755_Android_scatter.txt)
- Seect download >> choose upgrade firmware (dont use other option!)
- Select donwload button
- Siapkan hh dan kabel data kemudian colok kabel data ke hh 8. Tekan tombol volume + sambil colok usb pc, jika proses sdh jalan lepas dan biarkan hingga selesai
- lepas kabel data
- tekan dan tahan tombol volume – dan tombol power secara bersamaan sampe dipojok kiri bawah muncul tulisan Mode Recovery , lakukan clear data password and all app lalu kemudian reboot system
- siapkan kopi dan tunggu hingga selesai
- sampe disini proses downgrade selesai
Root + twrp
- Install kingoroot
- install flashy
- Flash twrp using flashy
Upgrade to MM
- Reboot to twrp
- Wipe data, cache, dalvick (dont reboot!)
- Flash CPH1605EX_11_OTA_001_all_201703252034_wipe.zip (ignore error message!)
- Wipe data, cache, dalvick again (dont reboot!)
- Install Magisk/Supersu (if you dont flash root now, internal data wont be recognized next reboot)
- done!
Recovery Mode
volume down + power
Credit goes to ASYIFA AL-FATIH