Bagaimana cara memulihkan sistem operasi perangkat yang rusak?

[Bibah]

Ketika saya membuka hp, layarnya bertuliskan peringatan berikut:
Your device is corrupt, it can't be trusted and may not work properly. Visit this link on another device
g.co/ABH

[Christine_ASUS]

Hi Bibah
Thank you for your asking. Kindly provide the information below so that we can better assist you.
1. Model Name: Settings>System>About phone
Refer to the link below to check the model name by model no. in the link
https://www.asus.com/support/FAQ/1014441/
2. Your current firmware version
Settings>System>About Phone>Software information
3. Have you ever unlocked, rooted, flashed custom ROM on your device?