nRF Connect, 2025-04-16 Sensor_Demo_cd (D2:39:6F:B2:10:CD) D 15:30:22.665 gatt.close() D 15:30:22.671 wait(200) V 15:30:22.881 Connecting to D2:39:6F:B2:10:CD... D 15:30:22.881 gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferred PHY = LE 1M) D 15:30:23.110 [Callback] Connection state changed with status: 0 and new state: CONNECTED (2) I 15:30:23.110 Connected to D2:39:6F:B2:10:CD V 15:30:23.131 Discovering services... D 15:30:23.131 gatt.discoverServices() D 15:30:23.132 [Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED D 15:30:23.170 [Broadcast] Action received: android.bluetooth.device.action.BOND_STATE_CHANGED, bond state changed to: BONDING (11) D 15:30:23.219 [Broadcast] Action received: android.bluetooth.device.extra.PAIRING_VARIANT, pairing variant: CONSENT I 15:30:23.700 Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms) D 15:30:24.180 [Callback] Services discovered with status: 0 I 15:30:24.180 Services discovered V 15:30:24.187 Generic Access (0x1800) - Device Name [R W] (0x2A00) - Appearance [R] (0x2A01) - Peripheral Preferred Connection Parameters [R] (0x2A04) - Central Address Resolution [R] (0x2AA6) Generic Attribute (0x1801) - Service Changed [I] (0x2A05)    Client Characteristic Configuration (0x2902) Unknown Service (00001000-1112-1314-1516-171819202122) - Unknown Characteristic [N R W WNR] (00001003-1112-1314-1516-171819202122)    Client Characteristic Configuration (0x2902) Battery Service (0x180F) - Battery Level [N R W WNR] (0x2A19)    Client Characteristic Configuration (0x2902) Secure DFU Service (0xFE59) - Buttonless DFU [I W] (8ec90003-f315-4f60-9fb8-838830daea50)    Client Characteristic Configuration (0x2902) Device Information (0x180A) - Manufacturer Name String [R] (0x2A29) - Model Number String [R] (0x2A24) - Serial Number String [R] (0x2A25) - Hardware Revision String [R] (0x2A27) - Firmware Revision String [R] (0x2A26) D 15:30:24.187 gatt.setCharacteristicNotification(00002a05-0000-1000-8000-00805f9b34fb, true) D 15:30:24.191 gatt.setCharacteristicNotification(00001003-1112-1314-1516-171819202122, true) D 15:30:24.192 gatt.setCharacteristicNotification(00002a19-0000-1000-8000-00805f9b34fb, true) D 15:30:24.283 [Broadcast] Action received: android.bluetooth.device.extra.PAIRING_VARIANT, pairing variant: CONSENT I 15:30:24.427 Connection parameters updated (interval: 48.75ms, latency: 0, timeout: 5000ms) D 15:30:25.783 [Broadcast] Action received: android.bluetooth.device.action.BOND_STATE_CHANGED, bond state changed to: BONDED (12) I 15:30:25.783 Device bonded I 15:30:29.027 Connection parameters updated (interval: 47.5ms, latency: 0, timeout: 4000ms) V 15:30:34.628 Enabling notifications for 00002a19-0000-1000-8000-00805f9b34fb D 15:30:34.628 gatt.setCharacteristicNotification(00002a19-0000-1000-8000-00805f9b34fb, true) D 15:30:34.630 gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x0100) I 15:30:34.728 Data written to descr. 00002902-0000-1000-8000-00805f9b34fb, value: (0x) 01-00 A 15:30:34.728 "Notifications enabled" sent V 15:30:34.733 Notifications enabled for 00002a19-0000-1000-8000-00805f9b34fb V 15:30:37.529 Enabling indications for 8ec90003-f315-4f60-9fb8-838830daea50 D 15:30:37.529 gatt.setCharacteristicNotification(8ec90003-f315-4f60-9fb8-838830daea50, true) D 15:30:37.531 gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x0200) I 15:30:37.674 Data written to descr. 00002902-0000-1000-8000-00805f9b34fb, value: (0x) 02-00 A 15:30:37.674 "Indications enabled" sent V 15:30:37.679 Indications enabled for 8ec90003-f315-4f60-9fb8-838830daea50 V 15:30:39.543 Writing request to characteristic 8ec90003-f315-4f60-9fb8-838830daea50 D 15:30:39.543 gatt.writeCharacteristic(8ec90003-f315-4f60-9fb8-838830daea50, value=0x01) I 15:30:39.629 Indication received from 8ec90003-f315-4f60-9fb8-838830daea50, value: (0x) 20-01-01 A 15:30:39.629 "Response for: Enter bootloader Status: Success" received I 15:30:39.629 Data written to 8ec90003-f315-4f60-9fb8-838830daea50, value: (0x) 20-01-01 A 15:30:39.629 "Response for: Enter bootloader Status: Success" sent V 15:30:53.225 [DFU] DFU service started V 15:30:53.225 [DFU] Opening file... I 15:30:53.262 [DFU] Firmware file opened successfully V 15:30:53.262 [DFU] Connecting to DFU target... D 15:30:53.262 [DFU] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferredPhy = LE_1M | LE_2M) I 15:30:53.282 [DFU] Connected to D2:39:6F:B2:10:CD V 15:30:57.289 [DFU] Discovering services... D 15:30:57.289 [DFU] gatt.discoverServices() I 15:30:57.295 [DFU] Services discovered V 15:30:57.296 [DFU] Reading Service Changed CCCD value... D 15:30:57.296 [DFU] gatt.readDescriptor(00002902-0000-1000-8000-00805f9b34fb) I 15:30:57.386 [DFU] Read Response received from descr.00002a05-0000-1000-8000-00805f9b34fb, value (0x): 02-00 A 15:30:57.386 [DFU] Service Changed indications enabled W 15:30:57.399 [DFU] Application with buttonless update found V 15:30:57.400 [DFU] Jumping to the DFU Bootloader... V 15:30:57.400 [DFU] Enabling indications for 8ec90003-f315-4f60-9fb8-838830daea50 D 15:30:57.400 [DFU] gatt.setCharacteristicNotification(8ec90003-f315-4f60-9fb8-838830daea50, true) D 15:30:57.402 [DFU] gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x02-00) I 15:30:57.481 [DFU] Data written to descr.8ec90003-f315-4f60-9fb8-838830daea50 V 15:30:57.481 [DFU] Notifications enabled for 8ec90003-f315-4f60-9fb8-838830daea50 A 15:30:57.482 [DFU] Indications enabled V 15:30:57.484 [DFU] Writing to characteristic 8ec90003-f315-4f60-9fb8-838830daea50, value (0x): 01 D 15:30:57.484 [DFU] gatt.writeCharacteristic(8ec90003-f315-4f60-9fb8-838830daea50, value=0x01, WRITE_TYPE_DEFAULT) A 15:31:27.563 [DFU] Enter bootloader sent (Op Code = 1) D 15:31:27.588 [Callback] Connection state changed with status: 22 and new state: DISCONNECTED (0) E 15:31:27.588 Error 22 (0x16): GATT CONN TERMINATE LOCAL HOST I 15:31:27.588 Disconnected D 15:31:27.651 [DFU] gatt.disconnect() D 15:31:27.651 [DFU] gatt.close() V 15:31:27.651 [DFU] Scanning for the DFU Bootloader... (timeout 5000 ms) D 15:31:27.678 [Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED D 15:31:27.698 [DFU] [Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED I 15:31:32.668 [DFU] DFU Bootloader not found. Trying the same address... V 15:31:32.692 [DFU] DFU service started I 15:31:32.692 [DFU] Firmware file opened successfully V 15:31:32.692 [DFU] Connecting to DFU target... D 15:31:32.724 [DFU] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferredPhy = LE_1M | LE_2M) E 15:32:02.787 [DFU] Connection failed (0x93): GATT CONN TIMEOUT W 15:32:02.787 [DFU] Retrying... (attempt 2 / 3) D 15:32:02.787 [DFU] gatt.refresh() (hidden) D 15:32:02.790 [DFU] gatt.disconnect() D 15:32:02.797 [DFU] gatt.close() V 15:32:02.844 [DFU] DFU service started I 15:32:02.845 [DFU] Firmware file opened successfully V 15:32:02.845 [DFU] Connecting to DFU target... D 15:32:02.845 [DFU] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferredPhy = LE_1M | LE_2M) E 15:32:32.921 [DFU] Connection failed (0x93): GATT CONN TIMEOUT W 15:32:32.922 [DFU] Retrying... (attempt 3 / 3) D 15:32:32.922 [DFU] gatt.refresh() (hidden) D 15:32:32.927 [DFU] gatt.disconnect() D 15:32:32.935 [DFU] gatt.close() V 15:32:32.970 [DFU] DFU service started I 15:32:32.970 [DFU] Firmware file opened successfully V 15:32:32.970 [DFU] Connecting to DFU target... D 15:32:32.974 [DFU] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferredPhy = LE_1M | LE_2M) E 15:33:03.043 [DFU] Connection failed (0x93): GATT CONN TIMEOUT D 15:33:03.043 [DFU] gatt.disconnect() D 15:33:03.048 [DFU] gatt.close() D 15:33:03.051 [DFU] wait(600) D 15:33:03.654 gatt.close() D 15:33:03.660 wait(200) V 15:33:03.861 Connecting to D2:39:6F:B2:10:CD... D 15:33:03.861 gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferred PHY = LE 1M) D 15:33:33.920 [Callback] Connection state changed with status: 147 and new state: DISCONNECTED (0) E 15:33:33.920 Error 147 (0x93): GATT CONN TIMEOUT I 15:33:33.920 Disconnected