How to Troubleshoot Network Search Errors on a Terminal
The problem, when click More>Cellular networks>Network operators>Search networks, it shows error message "Error while searching for networks".
If SIM card is LTE, please change the Settings>More>Cellular networks>Preferred network type to one option without EVDO and CDMA, for example set it to LTE/TDSCDMA/GSM/WCDMA.