Is there a spec for the OTA DFU service?

[RK]

As the title says, is there a spec for the OTA DFU service or do I just read the iOS app implementation code and work backwards? I thought of adding it to version 2 of my NRF OS X app.

[Ole Morten]

The spec is available as part of the SDK documentation here, and the underlying pages.

[RK]

Nordic's documentation really is second to none.

[Joe Merten]

The link (Sdk 5.1.0) is unfortunately broken. Here a link to the Sdk 7.0.0's Dfu spec.