Cannot upgrade/downgrade my Asus zenfone 4 ze554kl. help!

reza.siami1380reza.siami1380 Level 1
edited October 2020 in ZenFone 4 Series

Please tell us some basic information before asking for help:

  1. Model Name: Asus zenfone 4 ze554kl
  2. Firmware Version: PPR1.180610.009.WW_Phone-16.0620.1910.19-0
  3. Rooted or not: No

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 want to upgrade/downgrade my firmware but i see this when i want to do that:

E: Failed to mount /factory: Permission denied

E: Failed to mount /asdf: Permission denied

Supported API: 3

[phone status]

E: Failed to mount /asdf: Permission denied

E: Failed to mount /asdf

E: failed to set up expected mounts for install; aborting

Installation aborted. ***

I tried it with SD Card too but it doesn't work too.

i still can use my phone but i just wanna upgrade it to the latest version firmware and i cant :'(

please help me to resolve thins issue.

i attach some pictures below 👇️

thanks for attention


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