Hi
jahir1378mynThank you for your asking. Kindly try some stay-at-home troubleshooting tips below:
1. Download the file WW-16.2017.2007.084 in the PC and transfer the file into the root directory of the device's internal storage via USB cable. Then reboot and perform the manual update.
https://www.asus.com/supportonly/ZenFone%20Max%20Pro(M1)(ZB602KL)/HelpDesk_BIOS/2. If you still could not update the device, please try "the Factory Reset" first them perform the manual update.
Settings>System>Advanced>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 you have any further queries, please do not hesitate to contact me.