Network Cell Info is the first Android cellular network monitoring app, providing separate VU-like signal-meter gauges for the serving (registered) cell, as well as for neighbor cells. Network Cell Info is a cell network monitor and measurements log tool (4G+, LTE, CDMA, WCDMA, GSM). It provides also WiFi info (beta).
Uninstall the app, (reboot the device,) and re-install.
Perform any pending system and/or google apps update(s), and re-install the app.
If your Android/ROM/root somehow modifies the apk, then the app will not work.
Turn the internet on, before you start the app for first time (or after long time).
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