DFU nRF Toolbox DFU Proxy DFU Settings DFU Library version 1.10.0 DEVICE FIRMWARE UPDATE -186dp APPLICATION File name: Type: Size: Scope: Status: %d bytes OK OK (Init file selected) File not loaded Invalid file Reading file failed Please, select valid HEX file Info SELECT FILE File Browser not found File browser application has not been found on your device. Would you like to download one? Drive File Manager Total Commander Search for others market://details?id=com.google.android.apps.docs market://details?id=com.rhmsoft.fm market://details?id=com.ghisler.android.TotalCommander market://search?q=file manager DEVICE FIRMWARE UPDATE UPLOAD CANCEL DFU options Packets receipt notification procedure Number of packets MBR size MBR size (by default 4096 bytes) Keep bond information External MCU DFU Check this switch to ON if you want to perform a DFU operation without jumping to the bootloader mode on a device with a DFU implementation from SDK 6.1 or older. To achieve the same result on any newer implementation the DFU Version characteristic should return value other than 0x0100. About DFU DFU documentation on Nordic\'s Developer Zone Information During a DFU operation a lot of data packets are being sent to the target. The onCharacteristicWrite(...) callback in Android API is invoked when the data has been written to the outgoing queue, not when physically sent. Packet receipt notifications were introduced to prevent from overflowing the queue. Depending on the device model, disabling the notifications or setting the value to “high” (> ~300) may make the DFU process freeze at some point on Android versions before Marshmallow. Select file type Distribution packet (ZIP) Soft Device Bootloader Application Init packet Do you want to select the Init packet file?\n The Init packet file (*.dat) should contain the device type and revision, application version, list of supported Soft Devices and the firmware CRC in binary format or, with old versions of the DFU bootloader, only the CRC (CRC-CCITT-16). With the new version of the bootloader the extended Init packet is required. Select scope All System components only Application only 0% %d%% DEFAULT DFU Application Uploading Are you sure to cancel upload? Application has been transferred successfully. Uploading of the application has been canceled. Select file A file browser application must be installed on the device before selecting the file.\n\nThere are number of applications available on Google Play store, e.g. Total Commander or File Manager, that allow you to pick a file from internal memory of the device. To upload a file from the Internet you may use e.g. Drive or Dropbox application. \n\nYou will be asked to select an application if more than one is installed. A single application will be launched automatically.\n\nSince Android KitKat you may use the preinstalled document picker application. Ensure Show internal storage option is enabled in the menu to use the Internal storage. Starting from nRF Toolbox v1.12 the new Distribution packet (ZIP) is the recommended method for distributing firmware upgrades. You can create the ZIP file using the nrf util tool (see GitHub). For more detailed information, see the DFU documentation. \n\nBackward compatibility \nThe nRF Toolbox also supports all old file formats: HEX and BIN files, separate DAT files and ZIP files without a manifest file but with a fixed naming convention: The Device Firmware Update (DFU) app allows you to update the firmware of your Bluetooth LE device over-the-air (OTA). It is compatible with Nordic Semiconductor nRF5 devices with DFU bootloader enabled. \n\nFor more information about the DFU, see the About DFU section in Settings.