Problem with update any firmware in your site on my phone

[s_afshari1987]

Please tell us some basic information before asking for help:
Model Name: zenfone max plus m1 zb570tl
Firmware Version: ww_14.02. 1802.70_20190708
Rooted or not: not root
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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I just bought this phone but I can't update Android.

[ranger_biru]

Check if file you download corrupt or not, check the size of fw on your device and on web. Make sure its same size.

[Christine_ASUS]

Hi s.afshari1987
Thank you for your asking. Which firmware version do you want to update. In order to update from Android O to Android P, please make sure that your Android O is the previous version of the first Android P version. Kindly refer to the steps below
Your current version> auto-update to WW-14.02.1809.69> manual update to WW-15.02.1810.347> auto-update to WW-15.02.1904.453> manual update to WW-16.02.1905.435
The guide above is only for the firmware update guide, yet you can choose to stop at any firmware version you preferred.
#[Zenfone] How to update firmware on my phone?
https://www.asus.com/support/FAQ/1009748/
#ZB570TL Firmware Spot
https://www.asus.com/Phone/ZenFone-Max-Plus-M1/HelpDesk_BIOS/