OTA update using nRF Android Toolbox Application getting failed

[Nordic Chipset]

When I enable the OTA AT Command on the nRF52832 module and click on the DFU option available on the nRF toolbox Android Application, selected the OTA Package which shows the complete package as Invalid. The same package is getting OK response using the nRF iOS Application. 

NOTE: If I rename the OTA package as "filename_DTM".zip the package shows OK. But If I take it with the default name it shows as invalid file. But the same file name is showing OK on iOS nRF Application

Attached is the screenshot of the setup. Kindly share your thoughts/comments for the same.

[Hung Bui]

Hi, 

I suspect that the file name has some invalid characters. Could you show the name of the file that you are having issue ? I would avoid special characters such as '+', '.' and others.   

[Nordic Chipset]

Hi Hung, 

My Default Name of the OTA Package is "BM+S42_Central_ATEX_V3_12_0002_FWupdate_OTA.zip" for which the package shows as Invalid File. But If I change the name to "BM+S42_Central_ATEX_V3_12_0002_FWupdate_OTA_DTM.zip" or “SBS4604_V3.12.0002_with_DTM.zip” both the things are working fine. I do not see any limitations to the naming conventions for the OTA related to chipset. Looks like the Android App is not allowing the package with the default names. But with other nRF52832 OTA package, I could able to succeed with the default names without any modifications. 

[Hung Bui]

Please try to remove the '+' in the file name and check if it works ? I tried here with "BM+S42_Central_ATEX_V3_12_0002_FWupdate_OTA_DTM.zip"  and nRF COnnect still said that it's Invalid file. 
But if I tried with "BMS42_Central_ATEX_V3_12_0002_FWupdate_OTA.zip" or "BMS42_Central_ATEX_V3_12_0002_FWupdate_OTA_DTM.zip" it worked