Any other requirement for HEX on DFU in Android OS?

[jimlin]

Hi guys, I install V1.6 nRF ToolBox apk in my Android phone, and want to do the DFU operation. When the device in DFU status, I select the target HEX file but it shows me INVALID file so that the Android phone could not connect to the device. I found the 'ble_app_hrs.v7_1_0.hex' in the SDK folder should be OK with 'Init file selected' displayed. So, is there any other file needed exclude app hex? Or other setting ? The SD version is 7.0 and SDK is 6.0.

Thanks a lot.

[Hung Bui]

@Jimlin: nRF Toolbox current version is 1.12. Could you update with latest version ?

If you use bootloader from SDK v6.x you wouldn't need to select the init file. If you use bootloader from SDK v7.x and up, you would need to select the init file.

You would need to match the softdevice with the softdevice required for the application image.

I would suggest you to use bootloader from newer SDK, SDK v6.0 is pretty old.