Hi
hafiy1578Thank you for your asking. As
Xern mentioned above, you may perform the manual update steps as below
1. Back up your data. Download the UL pack (V17.0615.2005.25 Android 10 Beta Version) to the root directory, aka the outermost place, of the internal storage.
https://www.asus.com/Phone/ZenFone-5-ZE620KL/HelpDesk_BIOS/2. The system will detect new firmware and enter passwords.
3. Tap the system update notification
If you have any further queries, please do not hesitate to contact me.