Dear Friend，
Based on nRF52832, mesh3.1, port ble dfu to mesh project, Android dfu application is based 'no.nordicsemi.android:dfu:1.10.1';
Call the following program:
After the device dfu is upgraded halfway, exit the App and open the App again. Sometimes the upgrade starts from 0 progress, sometimes from the previous progress, the following problems will occur once when using the application to upgrade 10 times:
Cannot upgrade after a problem occurs, sdk returns OPERATION NOT PERMITTED
After this problem occurs, Can use ios to complete the upgrade.
More detailed issue description: github.com/.../229
