[OTA] Cannot upload different FW through DFU_OTA process

[jli_]

Hi, I have a problem related to DFU OTA through BLE

When performing OTA through Bluetooth, I encountered the following issue:

Firmware built in the same build can be successfully updated via OTA using the nRF Connect App on an iPhone (limited to firmware from the same build). However, if firmware from a different build is used, the following error message appears on UART:

 `<err> mcumgr_img_grp: Failed to open flash area ID 2: -2`

` <err> mcumgr_img_grp: Image upload inspect failed: 5`

How can I update the firmware in different built through BLE with the edge device using OTA ?

I am using nrf5340 + ncs2.4.2

[Menon]

Hello,

I am attaching a simple sample here for testing. I tested this here with NCS 2.4.2. Could you test if the same issue is happening with this sample? I also recommend trying by giving the swap type confirm only, not the swap type "Test and Confirm" from the NRF Connect app. Please delete the build folder from this file and try to test it.

Kind Regards,

Abhijith

,BLE_dfu_ota5340.zip