https://devzone.nordicsemi.com/f/nordic-q-a/6324/receiving-error-code-7-in-advertise-initHi... See my advertise_init function to add custom 128-bit UUID.As seen in the answer of this post devzone.nordicsemi.com/.../ i have changed uuid_type but still receiving error code 7 (INVALID_PARAM) uint8_t flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;en-USTelligent Community 13Thu, 23 Mar 2017 06:36:32 GMThttps://devzone.nordicsemi.com/thread/22061?ContentTypeID=1Thu, 23 Mar 2017 06:36:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a256c2df-7a93-4a98-a1be-78037e4cc661Roman Anikeev<p>I have the same error. Help please!</p><div style="clear:both;"></div>