I'm developing a privileged system app to scan the network. I have granted the app MODIFY_PHONE_STATE permission.
I try on A10-105F and OnePlus 6.
But when I run the code, the API returns the error "The modem does not support the request scan." (4) from requestNetworkScan callback.
public void launchScan()
int ranLte = AccessNetworkConstants.AccessNetworkType.GERAN;
int[] lteBands = {AccessNetworkConstants.GeranBand.BAND_850};
int[] lteChannels = {1};
RadioAccessSpecifier lte = new RadioAccessSpecifier(ranLte, lteBands, lteChannels);
RadioAccessSpecifier[] ras = new RadioAccessSpecifier[]{ lte};
int searchPeriodicity = 70;
int maxSearchTime = 200;
boolean incrementalResults = true;
int incrementalResultsPeriodicity = 7;
NetworkScanRequest networkScanRequest = new NetworkScanRequest(NetworkScanRequest.SCAN_TYPE_ONE_SHOT, ras, searchPeriodicity, maxSearchTime, incrementalResults,incrementalResultsPeriodicity, null);
telephonyManager.requestNetworkScan(networkScanRequest,AsyncTask.SERIAL_EXECUTOR,new MobileNetworkCallBack());
}
Does anyone have any idea how the phone's modem can't scan when it can connect to different networks? I'm trying with different frequency bands/channels
Thanks you
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