ASUS - ZenTalk

Hi maelamuenihaya
Thank you for your asking. If you want to practice an initial diagnosis to check weather the issue is a hardware issue or not, please try
a. SMMI test
Calculator> type ".12345+=">SMMI TEST>Single Test
If any of the SMMI tests fails, indicating high possibility of faulty hardware
b. Also, please try "the Factory Reset" 
Settings>System>Reset options>Erase all data(factory reset)
Please note that once the Factory Reset is completed, all data, apps, settings and personal information will be deleted.
If the situation remains the same after performing the Factory Reset, indicating high possibility of faulty hardware.

For the hardware repair, please contact ASUS repair center in the country of your residence: https://www.asus.com/support/Service-Center-All-Countries/
If it is impossible to access the service center during Covid-19 period, please try Call us: https://www.asus.com/support/CallUs

maelamuenihaya

https://us.v-cdn.net/6031231/uploads/BZR9RJ45YMR2/received-403928654157150.mp4

I live in Thailand,I want to know where can I buy spare part of camera and fingerprint.Online store or offline store

Front Camera and fingerprint broken

Go with www.aliexpress.com to buy any spare parts for Asus Zenfone 5z online mode.
Aside if you have any authorised service centre nearest to your location take your device there for examination they will help you out with Genuine parts.
Thanks!