can't find BLE devices using scan.

[sbom00]

I'm using an android (Moto g5+, Android 8.10), and Quasar/Cordova.

I Have already set up location services, permissions, and enabled Bluetooth. I had the program running and finding devices but did some modifications and lost functionality. When I did the rollback, it still didn't work. I have already uninstalled the app from my mobile, and have already restarted my computer, Android Studio and Visual Studio Code. I am at a loss in what to do now. Here is the code `connect: function(address) {

log('Connecting to device: ' + address + "...", "status");

if (cordova.platformId === "windows") {

    getDeviceServices(address);

}
else {

    stopScan();

    new Promise(function (resolve, reject) {

        bluetoothle.connect(resolve, reject, { address: address });

    }).then(connectSuccess, handleError);

}

}, addDevice: function(name, address) {

var button = document.createElement("button");
button.style.width = "100%";
button.style.padding = "10px";
button.style.fontSize = "16px";
button.textContent = name + ": " + address;

button.addEventListener("click", function () {

    document.getElementById("services").innerHTML = "";
    this.connect(address);
});

document.getElementById("devices").appendChild(button);

}, initializeSuccess: function(result) {

if (result.status === "enabled") {

    this.log("Bluetooth is enabled.");
    this.log(result);
    this.startScan();
}

else {

    document.getElementById("start-scan").disabled = true;

    this.log("Bluetooth is not enabled:", "status");
    this.log(result, "status");
}

}, handleError: function(error) {

var msg;

if (error.error && error.message) {

    var errorItems = [];

    if (error.service) {

        errorItems.push("service: " + (uuids[error.service] || error.service));
    }

    if (error.characteristic) {

        errorItems.push("characteristic: " + (uuids[error.characteristic] || error.characteristic));
    }

    msg = "Error on " + error.error + ": " + error.message + (errorItems.length && (" (" + errorItems.join(", ") + ")"));
}

else {

    msg = error;
}

this.log(msg, "error");

if (error.error === "read" && error.service && error.characteristic) {

    reportValue(error.service, error.characteristic, "Error: " + error.message);
}

}, log: function(msg, level) {

level = level || "log";

if (typeof msg === "object") {

    msg = JSON.stringify(msg, null, "  ");
}

console.log(msg);

if (level === "status" || level === "error") {

    var msgDiv = document.createElement("div");
    msgDiv.textContent = msg;

    if (level === "error") {

        msgDiv.style.color = "red";
    }

    msgDiv.style.padding = "5px 0";
    msgDiv.style.borderBottom = "rgb(192,192,192) solid 1px";
    document.getElementById("output").appendChild(msgDiv);
}

}, retrieveConnectedSuccess: function(result) {

this.log("retrieveConnectedSuccess()");
this.log(result);

result.forEach(function (device) {

    this.addDevice(device.name, device.address);

});

}, startScanSuccess: function(result) {

this.log("startScanSuccess(" + result.status + ")");

if (result.status === "scanStarted") {

    this.log("Scanning for devices (will continue to scan until you select a device)...", "status");
}
else if (result.status === "scanResult") {
    if (!this.foundDevices.some(function (device) {

        return device.address === result.address;

    })) {

        this.log('FOUND DEVICE:');
        this.log(result);
        this.foundDevices.push(result);
        this.addDevice(result.name, result.address);
    }
}

}, requestPermissionSuccess: function (result){ if (result==true){ this.log("successfully requested permission?") bluetoothle.isLocationEnabled(this.isLocationEnabledSuccess, this.handleError); }else{ this.log("request permission failed"); }

}, hasPermissionResult: function(result){ if (result == false){ this.log("app does not have permission") bluetoothle.requestPermission(this.requestPermissionSuccess, this.handleError); } else{ this.log("app has permition") bluetoothle.isLocationEnabled(this.isLocationEnabledSuccess, this.handleError); // } }, isLocationEnabledSuccess: function(result){ if (result==false){ this.log("locations is not enabled") alert("please turn on location services"); bluetoothle.requestLocation(this.log("user has been requested to enable location"), this.handleError); this.initializee(); } else{ this.log("location is enabled aleady"); this.initializee(); } }, startScan: function() {

this.log("Starting scan for devices...", "status");

this.foundDevices = [];

document.getElementById("devices").innerHTML = "";
document.getElementById("services").innerHTML = "";
document.getElementById("output").innerHTML = "";
bluetoothle.startScan(this.startScanSuccess, this.handleError, { services: [] });

}, initializee: function(){

new Promise(function (resolve) { bluetoothle.initialize(resolve, { request: true, statusReceiver: false });

}).then(this.initializeSuccess, this.handleError);

}, triggbtn: function () { this.log("button was pressed"); this.t1 = performance.now(); bluetoothle.stopScan(this.log('restarted scan')); bluetoothle.hasPermission(this.hasPermissionResult);
},

},`

This is the log after I press the button

[randdusing]

What type of device are you connecting to? Have you tried restarting that? And restarting the phone?

[guspan]

Check this #579