User coming from nrf51 world (S310) and going to nrf52

[fletort]

Why the S310 is not more available for the nrf52 ?

[Sigurd]

Hi,

The S310 SoftDevice is only compatible with the nRF51. You will need to use the S332 if you need a combined ANT + BLE SoftDevice for the nRF52. See the Compatibility matrix for information on what SDK version and SoftDevice version that are compatible.

[Sigurd]

Yes, that is correct. There is a migration section in the inforcenter here, not 100% up-to-date, but should give you a starting point.