Is there a differential update method in ncs sdk

[joey]

HI

Based on the nRF54L15 with SDK 3.0.0 and MCUBOOT for OTA updates, I've discovered there's a firmware image compression algorithm available. However, when compiling with the BLE protocol stack, the complete firmware is about 300KB in size, and even after image compression, it still remains around 170KB.

Is there a differential update method available that would only generate and transmit the modified portions of code for each update?

Thanks

[SwRa]

Hello,

Unfortunately, there is no support for differential (delta) OTA updates for application firmware on Nordic MCUs using nRF Connect SDK and MCUboot.

Regards,

Swathy

[longrain]

Here is an example,but not official:github.com/.../delta_dfu_lib