When developing a dfu upgrade device, the code can be loaded to 100%, but the prompt "remote dfu invalid crc error" The compiled firmware can be upgraded with the old nRFtoolbox

[amenuo]

When developing the dfu upgrade device, the code can be loaded to 100%, but the prompt "remote dfu invalid crc error" The compiled firmware can be upgraded with the old nRFtoolbox. We found that the app cannot be loaded when calling DFU-1.6.1 (direct error). However, the library calling DFU-1.1.1 can be loaded but the above error message is displayed. Consult the corresponding version of the DFU library, the device uses S110 V7.10.

[Vidar Berg]

Hello,

I'm not sure if I have seen this before. Are you generating a DFU .zip package with nrfutil or are you just providing the .hex file in nRFtoolbox? Also, which SDK version is the bootloader based on?

[amenuo]

I use the DFU.zip generated by the nrfutil program. The bootloader is based on SDK 7.1.0

[Vidar Berg]

DFU-1.6.1 (direct error). However, the library calling DFU-1.1.1

Are you testing both of these with the same custom app, and are both failing to complete the update? Also, have you tried to see if this works most recent version of nRF toolbox and nRF connect?

amenuo said:

I use the DFU.zip generated by the nrfutil program. The bootloader is based on SDK 7.1.0

Could you upload the manifest file that's included in your generated DFU.zip file?