Heart rate demo using QFAAC0, SDK v4.4.0 and SD v6.0.0

Question

Hi, 
 Does the heart rate demo in SDK v4.4.0 work with SD v6.0.0? I'm using the QFAAC0 revision of the NRF51822. The demo works fine with SD v5.2.0. Is there anything special I need to do? Or does it not work at all? 
 Thanks,
Robert

Ole Morten · Accepted Answer

An SDK version can only be used with the softdevice it was made for. This is always stated in the SDK's release notes. SDK 4.4.0 will not work with S110 version 6.0.0, for that you'll have to use SDK 5.1.0. 
 The official recommendation is to not go to production with S110 version 6.0.0 on a first revision chip, but it should work for development if you want to. Be aware of this problem however. 
 The best option for moving forward is to get hold of a new kit. I believe that a new kit from Mouser should be a second revision chip now, but you can check this by verifying that you get hardware version 2.1.0 or later.