Max Pro M2 Android 10 v434 new bugs

[dodiirwandi40]

1. Auto brightness sometimes error or still brigh in low light places. Camera quality still need to improve
2. When using application: a. Smule (sound still loudspeaker + headphone). b. Calling voice call on WhatsApp auto loudspeaker. c. When Stream on Discord audio connect to bluetooth, audio still loudspeaker (double sound: loudspeaker + audio bluetooth)
3. When play music on third app like Poweramp sound small and noises
4. When use headphones or audio external via bluetooth sound flat (have'n bass and have noises

[dodiirwandi40]

I wanna downgrade to Pie (android 9) again until release android 10 stable version

[Christine_ASUS]

Hi dodiirwandi40
Thank you for your report. Please backup your device and follow the steps below as 10 to 9 downgrade steps.
1. Download "MaxProM2_downgrade_to_9" and then put the image file into the root directory of the MicroSD card.
https://www.asus.com/supportonly/ZenFone%20Max%20Pro%20(M2)(ZB631KL)/HelpDesk_BIOS/
2. Insert MicroSD card into phone and then power off the device.
3. Long press with "Power" key and "Volume Down" key together and stop after feel the vibration to enter Recovery Mode
4. Use "Volume Down/Up" key and press "Power" key to choose "Apply update from external storage"
5. Select the downgrade file
6. When the updating process is done, Choose "Wipe data/factory reset" and tap"Yes" to perform the master clear.
7. "Wipe cache partition" > "Yes"
8. "Reboot system now" 

#Android 10 to Android 9 Guide 
https://www.asus.com/support/FAQ/1042349