zenfone 5 keep on restarting

my zenfone 5 asus_x00QD keep on restating, anyone can help?a
nd i have tried the wipe cache partition but still wont work.
I have some important data in the phone need to be backup, so i cann do the factory rest yet.
anyone have any idea?
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Hi lk88,
Thank you for your asking. To back up, please try the following steps below if you can enter the phone system:
1. Google Drive Backup
https://www.asus.com/support/FAQ/1036182
2. ZenUi
https://www.asus.com/support/FAQ/1030668
3. PC with Wifi
https://www.asus.com/support/FAQ/1031848
If you could not enter the phone, please try factory reset or contact ASUS repair center in the country of your residence: https://www.asus.com/support/Service-Center-All-Countries/
lol cann even start the phone how to backup........................
hummm a very hopeless and a very promising problem you will have if you were to by assuz zenfone. changed 3 of the zenfone already all have the same issue. it cann be trust