nRF Connect DFU failed

[BrickChen]

Hi,

I am using nrf connect for Andriod V4.15.0 to upgrade the nrf51422 device。

It can normally conenct to the device(DFU Mode), but when I choose the right ZIP file, 

it shows "Loading file failed, try another broswer", and open file failed..

But when I use the same ZIP file in another Andriod Phone, it works.

Please kindly help me the reason why I got this message! Thanks~

[BrickChen]

Sorry, The correct message is "Loading file has failed, Try different file browser app"

[Einar Thorsrud]

Hi,

I understand the Android version is 4.15.0. Which Android device are you using? Which file browser app are you using? Have you attempted to use another?

[BrickChen]

Hi,

Thanks for your reply!

The version of nrf connect is 4.15, andriod version is 8.0.

I tried serveral file managers, finaly i found a file broswer that can work.

Could you kindly explain why it causes this issue? and what kind of file manager works on it?

Thanks in advance!

[Einar Thorsrud]

The issue seems to be that some file managers will extract the zip file (either always or optionally), and if so it will not work properly. nRF Connect expect to get the full unextracted zip file. The solution is to use a file manager which does not extract zip files.

[BrickChen]

Ok, I see, thanks~