If the Wingle software is installed normally, but indicates no signal or no service, follow the below mentioned steps:
Insert your SIM card in the same operator’s mobile device to check the connection status (weak or no signal).
If your mobile device has the same problem, it means the current location does not have strong network coverage.
Check whether you have selected the correct network type as 4G only and your device should be on "auto" mode.
Try to restore to factory settings
(Note: restoring to factory settings will clear your address book and short messages, please backup your data before doing it).
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