Please tell us some basic information before asking for help: Model Name: Asus zenfone 4 ze554kl Firmware Version: PPR1.180610.009.WW_Phone-16.0620.1910.19-0 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. ======================================== 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
Hi ziwi12345 Thank you for your asking. Are you asking about the issue of all apps can't open? Kindly try some stay-at-home troubleshooting tips below: 1. Settings>Apps & notifications>App info>3 dots on the top row>Reset app preferences 2. Please try "the Factory Reset" Settings>System>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.