Hi Support team,
I met a strange problem on my IoT device, which provided a BLE service.
One month ago, I could use nRF_Connect_APP with my mobile phone(phone_A) to find the service and read/write data.
But I can't find the service now, the Bluetooth connection is successful, but it always returns the "No services found".
I used nRF_Connect_APP on another old mobile phone (phone_B), and the service can be discovered successfully.
The firmware on the IoT device is the same.
I caught the two logs with debug level on nRF_Connect_APP and attached them here, could you help me have a look, maybe it need some settings on the nRF_Connect_APP?
Thank you very much
Best regards,
Yanpeng Wu
nRF Connect, 2025-02-04 BDS_IOTDL (D4:42:28:03:50:D8) D 10:35:17.204 gatt.close() D 10:35:17.208 wait(200) V 10:35:17.412 Connecting to D4:42:28:03:50:D8... D 10:35:17.412 gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferred PHY = LE 1M) D 10:35:17.518 [Callback] Connection state changed with status: 0 and new state: CONNECTED (2) I 10:35:17.518 Connected to D4:42:28:03:50:D8 V 10:35:17.522 Discovering services... D 10:35:17.522 gatt.discoverServices() D 10:35:17.537 [Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED I 10:35:17.869 Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms) D 10:35:17.907 [Callback] Services discovered with status: 0 I 10:35:17.907 Services discovered V 10:35:17.907 No services found I 10:35:17.951 PHY updated (TX: LE 2M, RX: LE 2M) I 10:35:18.049 Connection parameters updated (interval: 30.0ms, latency: 0, timeout: 5000ms) I 10:35:22.825 Connection parameters updated (interval: 30.0ms, latency: 0, timeout: 420ms) V 10:35:27.412 Disconnecting... D 10:35:27.412 gatt.disconnect() D 10:35:27.432 [Callback] Connection state changed with status: 0 and new state: DISCONNECTED (0) I 10:35:27.432 Disconnected D 10:35:28.547 [Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED V 10:35:29.557 Starting pairing... D 10:35:29.557 device.createBond() D 10:35:29.593 [Broadcast] Action received: android.bluetooth.device.action.BOND_STATE_CHANGED, bond state changed to: BONDING (11) D 10:35:29.778 [Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED D 10:35:29.778 gatt.close() D 10:35:29.779 wait(200) V 10:35:29.980 Connecting to D4:42:28:03:50:D8... D 10:35:29.980 gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferred PHY = LE 1M) D 10:35:29.995 [Callback] Connection state changed with status: 0 and new state: CONNECTED (2) I 10:35:29.995 Connected to D4:42:28:03:50:D8 D 10:35:30.153 [Broadcast] Action received: android.bluetooth.device.extra.PAIRING_VARIANT, pairing variant: PASSKEY CONFIRMATION, key: 144255 I 10:35:30.256 PHY updated (TX: LE 2M, RX: LE 2M) I 10:35:30.556 Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms) I 10:35:30.650 Connection parameters updated (interval: 30.0ms, latency: 0, timeout: 5000ms) I 10:35:34.797 Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms) I 10:35:34.880 Connection parameters updated (interval: 30.0ms, latency: 0, timeout: 420ms) D 10:35:37.570 [Broadcast] Action received: android.bluetooth.device.action.BOND_STATE_CHANGED, bond state changed to: BONDED (12) I 10:35:37.571 Device bonded D 10:35:37.573 wait(1600ms) V 10:35:39.175 Discovering services... D 10:35:39.175 gatt.discoverServices() D 10:35:39.184 [Callback] Services discovered with status: 0 I 10:35:39.184 Services discovered V 10:35:39.184 No services found
nRF Connect, 2025-02-04 BDS_IOTDL (D4:42:28:03:50:D8) D 10:30:29.550 gatt.close() D 10:30:29.556 wait(200) V 10:30:29.761 Connecting to D4:42:28:03:50:D8... D 10:30:29.761 gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferred PHY = LE 1M) D 10:30:30.017 [Callback] Connection state changed with status: 0 and new state: CONNECTED (2) I 10:30:30.017 Connected to D4:42:28:03:50:D8 V 10:30:30.055 Discovering services... D 10:30:30.055 gatt.discoverServices() D 10:30:30.057 [Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED I 10:30:30.529 Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms) D 10:30:30.723 [Callback] Services discovered with status: 0 I 10:30:30.723 Services discovered V 10:30:30.776 Generic Attribute (0x1801) - Service Changed [I] (0x2A05) Client Characteristic Configuration (0x2902) - Client Supported Features [R W] (0x2B29) - Database Hash [R] (0x2B2A) Generic Access (0x1800) - Device Name [R] (0x2A00) - Appearance [R] (0x2A01) - Peripheral Preferred Connection Parameters [R] (0x2A04) Provision (00001543-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001544-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001545-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001546-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001547-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001548-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001549-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001550-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001551-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001552-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001553-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001554-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001566-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001567-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001568-1212-efde-1523-785feabcd123) - Unknown Characteristic [W] (00001569-1212-efde-1523-785feabcd123) - Unknown Characteristic [I R] (00001570-1212-efde-1523-785feabcd123) Client Characteristic Configuration (0x2902) D 10:30:30.776 gatt.setCharacteristicNotification(00002a05-0000-1000-8000-00805f9b34fb, true) D 10:30:30.780 gatt.setCharacteristicNotification(00001570-1212-efde-1523-785feabcd123, true) I 10:30:30.799 Connection parameters updated (interval: 48.75ms, latency: 0, timeout: 5000ms) I 10:30:35.278 Connection parameters updated (interval: 48.75ms, latency: 0, timeout: 420ms)
