Christine_ASUSIve tried it all, even the format option none of them works.I even tested my cable on other phone and its fine . Is it hardware failure??
Thank you for your asking. My ZB602KL in the same firmware version works fine with PC.
Because your device hasn't be detected by any PC since 2019, kindly try some stay-at-home troubleshooting tips below:
1. Change cable, could other cable work?
2. Check on your USB settings: Settings > System > Developer options > Default USB configuration > select File Transfer
>>But you tried it before, right?
3. Please try to enter "Safe Mode". If the function works well in Safe Mode yet the issue remains out of Safe Mode, please check on any disturbance from the installed 3rd party apps.
# How to enter and exit "Safe Mode"
4. Also, please try "the Factory Reset"
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.