nCS DFU suddenly doesn't work well on my Pixel 6 phone.

[Yoshihiro Goto]

DFU has been failing recently. Yes, it was working fine until a while ago.

Specifically, the screen that was displayed while waiting for the device to reboot after DFU disappears immediately. That screen is the one on which Validating is displayed.

Originally, DFU would be completed by waiting for a reboot on this screen and reconnecting again. Otherwise, a rollback will occur and the DFU will fail. The nRF Connect App times out because the screen disappears without waiting for the device to reboot, resulting in a firmware rollback.

For reference, when I use AQUOS Phone, DFU succeeds. So I feel that it is not an SDK issue but a smartphone issue. But is that possible?

[Hung Bui]

Hi Yoshihiro, 

Do you have the same problem when you select Confirm only ? 
There could be a chance that the app didn't wait for the device to reboot to confirm the image and causing the device to roll back. 

If possible could you do video record of the screen so we can see what exactly happen when the validating screen is disappearing. 

[Yoshihiro Goto]

Hi,

Hung Bui said:

Do you have the same problem when you select Confirm only ? 

I tried with 'Confirm Only' and it still didn't work.

Hung Bui said:

If possible could you do video record of the screen

Now Attached. But it looks like you need a paid plugin to play it on Windows.

[Yoshihiro Goto]

Additional information: my pixel 6 phone uses Android OS 14.