diff --git a/MainV2.cs b/MainV2.cs
index 139e8926e9..f2c86b6e79 100644
--- a/MainV2.cs
+++ b/MainV2.cs
@@ -1703,132 +1703,6 @@ public void doConnect(MAVLinkInterface comPort, string portname, string baud, bo
                         }
                     });
 
-                // check for newer firmware - can peripheral
-                if (showui)
-                    Task.Run(() =>
-                    {
-                        try
-                        {
-                            List<int> buses = new List<int> { 1, 2 };
-                            foreach (var bus in buses)
-                            {
-                                using (var port = new CommsInjection())
-                                {
-                                    var can = new DroneCAN.DroneCAN();
-                                    can.SourceNode = 127;
-
-                                    port.ReadBufferUpdate += (o, i) => { };
-                                    port.WriteCallback += (o, bytes) =>
-                                    {
-                                        var lines = ASCIIEncoding.ASCII.GetString(bytes.ToArray())
-                                            .Split(new[] { '\r' }, StringSplitOptions.RemoveEmptyEntries);
-
-                                        foreach (var line in lines)
-                                        {
-                                            can.ReadMessageSLCAN(line);
-
-                                        }
-
-                                    };
-
-                                    // mavlink to slcan
-                                    var canref = MainV2.comPort.SubscribeToPacketType(MAVLink.MAVLINK_MSG_ID.CAN_FRAME, (m) =>
-                                    {
-                                        if (m.msgid == (uint)MAVLink.MAVLINK_MSG_ID.CAN_FRAME)
-                                        {
-                                            var canfd = false;
-                                            var pkt = (MAVLink.mavlink_can_frame_t)m.data;
-                                            var cf = new CANFrame(BitConverter.GetBytes(pkt.id));
-                                            var length = pkt.len;
-                                            var payload = new CANPayload(pkt.data);
-
-                                            var ans2 = String.Format("{0}{1}{2}{3}\r", canfd ? 'B' : 'T', cf.ToHex(), length.ToString("X")
-                                                , payload.ToHex(DroneCAN.DroneCAN.dlcToDataLength(length)));
-
-                                            port.AppendBuffer(ASCIIEncoding.ASCII.GetBytes(ans2));
-                                        }
-                                        else if (m.msgid == (uint)MAVLink.MAVLINK_MSG_ID.CANFD_FRAME)
-                                        {
-                                            var canfd = true;
-                                            var pkt = (MAVLink.mavlink_canfd_frame_t)m.data;
-                                            var cf = new CANFrame(BitConverter.GetBytes(pkt.id));
-                                            var length = pkt.len;
-                                            var payload = new CANPayload(pkt.data);
-
-                                            var ans2 = String.Format("{0}{1}{2}{3}\r", canfd ? 'B' : 'T', cf.ToHex(), length.ToString("X")
-                                                , payload.ToHex(DroneCAN.DroneCAN.dlcToDataLength(length)));
-
-                                            port.AppendBuffer(ASCIIEncoding.ASCII.GetBytes(ans2));
-                                        }
-
-                                        return true;
-                                    }, (byte)MainV2.comPort.sysidcurrent, (byte)MainV2.comPort.compidcurrent, false);
-
-                                    can.NodeAdded += (id, status) =>
-                                    {
-                                        Console.WriteLine(id + " Node status seen - request Node Info");
-                                        // get node info
-                                        DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_req gnireq = new DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_req() { };
-
-                                        var slcan = can.PackageMessageSLCAN((byte)id, 30, 0, gnireq);
-
-                                        can.WriteToStreamSLCAN(slcan);
-                                    };
-                                                       
-                                    // be invisible
-                                    can.NodeStatus = false;
-                                    can.StartSLCAN(port.BaseStream);
-
-                                    //start on bus
-                                    var ans = MainV2.comPort.doCommand((byte)MainV2.comPort.sysidcurrent,
-                                     (byte)MainV2.comPort.compidcurrent, MAVLink.MAV_CMD.CAN_FORWARD, bus, 0, 0, 0, 0, 0, 0,
-                                     false);                                    
-
-                                    Thread.Sleep(5000);
-
-                                    // stop
-                                    MainV2.comPort.doCommand((byte)MainV2.comPort.sysidcurrent,
-                                     (byte)MainV2.comPort.compidcurrent, MAVLink.MAV_CMD.CAN_FORWARD, 0, 0, 0, 0, 0, 0, 0,
-                                     false);
-
-                                    foreach (var node in can.NodeInfo)
-                                    {
-                                        var devicename = can.GetNodeName((byte)node.Key);
-                                        var githash = can.NodeInfo[node.Key].software_version.vcs_commit.ToString("X");
-                                        //Version and githash
-
-                                        log.Info(node.ToJSON());
-
-                                        var option = APFirmware.Manifest.Firmware.Where(a =>
-                                            a.MavFirmwareVersionType == APFirmware.RELEASE_TYPES.OFFICIAL.ToString() &&
-                                            a.VehicleType == "AP_Periph" &&
-                                            a.Format == "bin" &&
-                                            a.MavType == "CAN_PERIPHERAL" &&
-                                            a.MavFirmwareVersionMajor >= node.Value.software_version.major &&
-                                            a.MavFirmwareVersionMinor >= node.Value.software_version.minor &&
-                                            node.Value.software_version.major != 0 &&
-                                            node.Value.software_version.minor != 0 &&
-                                            devicename.EndsWith(a.Platform) &&
-                                            !a.GitSha.StartsWith(githash, StringComparison.InvariantCultureIgnoreCase)
-                                        ).FirstOrDefault();
-                                        if (option != default(APFirmware.FirmwareInfo))
-                                        {
-                                            Common.MessageShowAgain("New firmware", "New firmware for " + devicename + " " + option.MavFirmwareVersion + " " + option.GitSha + "\nUpdate via the dronecan screen");
-                                        }
-                                    }
-
-                                    can.Stop();
-
-                                    MainV2.comPort.UnSubscribeToPacketType(canref);
-                                }
-                            }
-                        }
-                        catch (Exception ex)
-                        {
-                            log.Error(ex);
-                        }
-                    });
-
                 this.BeginInvokeIfRequired(() =>
                 {
                     _connectionControl.UpdateSysIDS();