RE: Error updating DFU - Platform exception

Aleksander Nowakowski — Mon, 09 Aug 2021 10:22:43 GMT

Hello,

Have a look at: https://github.com/NordicSemiconductor/Android-DFU-Library/blob/b5d587bfbfaa5b1eacebce3a8846746a9d3a9793/dfu/src/main/java/no/nordicsemi/android/dfu/DfuBaseService.java#L1324

Based on this link, the log message:

[quote userid="99426" url="~/f/nordic-q-a/78320/error-updating-dfu---platform-exception"]08-03 13:26:53.970 14599 15550 E DfuBaseService: Device not reachable. Check if the device with address DD:F9:55:CA:3C:89 is in range, is advertising and is connectable[/quote]

should happen > 25 sec after the connection attempt. In your case it looks like 5 seconds passed, from 13:26:48.559 to 13:26:53.970. This indicates something with how you start the DFU again, after the last one completed/failed (are you trying to update multiple devices at the same time?), or modified library? Also, looks like you're filtering logs, as I can't see those on Info level (e.g line 1321 of the file above).

Why do you start and stop scanning so often?

What phone are you testing on? Did you try a different phone? Is it common for a user to do more than 2/3 updates, or are you stress-testing?