I found solution with help from this example https://github.com/espressif/esp-idf/blob/master/examples/bluetooth/nimble/blecent/main/main.c#L375. Problem is in that when to call multiple times to read. Not to call all in OnDicComplete() function, but to called it after the read is over. You have to ...

Hello, Does anybody knows how to free memory that is created/occupied by calling ble_gattc_read() ? Function ble_gattc_read() , calls ble_gattc_proc_alloc() , and inside that function it is called memset() . How do I free that allocated memory? I get error with error code 6, which is Operation faile...