Android: How to Factory Reset Asus ZenFone Max Pro (M2) (X01BDA)
Official Mobile Device Policy requires devices encrypted
When to hand over the mobile device - Asus ZenFone Max Pro (M2) (X01BDA) - to another colleague
Need to factory reset
How to [1]:
1. When device is off, press (also hold) volume down key and then press (also hold) power key.
After the device vibrates, release power key (keep holding volume down key) to enter recovery mode.
More, because of the Factory Reset Protection (FRP)[2], the original Google Account required
Once FRP is activated, it will block the use of the device after factory
reset process until logging on a remembered Google Account and
Password
References
[1] [Phone] How to do hardware reset on your phone?
[2] Asus Zenfone 5 ZE620KL Factory Reset
Update