After setting the key position as the default, the key position is still the default key after restarting the peripheral device, avoiding the need to select the key position every time you restart
When the key bit is made the default, the key bit is still the default key after the peripheral is restarted, so you should avoid selecting the key bit for each restart.
After setting the key position as the default key, the key will still be the default key after restarting the peripheral device, so as to avoid selecting the key position every time you restart