Networking issue signal down and data connection not working
Thank you for your asking. Which model and firmware version do you have?
# Model Name: Settings>System>About phone
Refer to the link below to check the model name by model no. in the link
#Your current firmware version
Settings>System>About Phone>Build Number
If you try to update to the latest version, does the issue still persist?
Kindly try some stay-at-home troubleshooting tips below:
1. Please try reset Network: Settings>System>Advanced>Reset options>Reset Wi-Fi, mobile & Bluetooth
2. 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"
3. 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.
4. Please try SMMI test, do they pass?
Calculator> type ".12345+=">SMMI TEST>Single Test>SIM Card Test/SIM Signal Test/Wi-Fi Test/Bluetooth Test
If any of the SMMI tests fails, kindly bring your device to the nearest ASUS repair center for device checking: https://www.asus.com/support/Service-Center-All-Countries/
If it is impossible to access the service center during Covid-19 period, please try Call us: https://www.asus.com/support/CallUs