Hi joeffreynambatac16,
1. Does the problem of the screen turns on happen every time? Does it happen when setting to other sleep time options (30s, 1m, ....)?
For battery drain and screen turns on by itself issues, we would suggest you back up your phone, and send to your local service center for a further examination.
US support: https://www.asus.com/us/support/
Please choose "Service and Repair" > "Create Online RMA".
2. For the connect to PC issue, please connect to PC > unlock your phone > find a message "Use USB for file transfer" on your phone > choose "yes".
Or scroll down the notifications and find "USB charging this device" > tap for more options > Transfer files.
If you still cannot find your device on your PC, you may check this FAQ:
https://www.asus.com/support/FAQ/1011564/
3. For Chrome malfunction, kindly try clearing data of Chrome.
If the problem still appears, provide us a screenshot, and tell us your Chrome version.
4. 5. Could you tell me when the screen mode appears? (e.g. when charging)
Thank you
🙂