Trying new stack S120 Ver2.0.0, application receives an error at sd_ble_uuid_vs_add api. error code is 3001. This error was not before with ver1.0.1.
Hi,
When porting from earlier SoftDevices to newer versions, always read the Migration Document included in the release bundle. Your problem here is that you are missing a call to sd_ble_enable(). The error code you see (0x3001) is "BLE_ERROR_NOT_ENABLED", which according to the documentation means: "sd_ble_enable has not been called"
There are other very important changes in the migration document as well. Please read this document thoroughly together with the release notes.