@rares83: If the connection between the S Pen and your Galaxy Note 10 has been lost, just insert the S Pen into the holster at the bottom of the phone so it clicks into place, and leave it for a couple of seconds. It will pair quickly, and the connection will be re-established. If the problem persists, leave the S Pen in it's holster, then head to Settings > Advanced Features > S Pen > Air Actions > Tap the 3 dots in the top right > Reset S Pen. I also recommend restarting your phone to address any temporary software issues that might be a contributing factor.
If you have recently replaced your S Pen, and are connecting it for the first time, then please leave the S Pen in it's holster > Swipe from the top of the screen to the bottom using 2 fingers > Swipe through the Quick Panel until you see 'S Pen Remote' > Tap the pen symbol, then tap it again to begin the pairing process. A Pen symbol will begin flashing in your Status Bar at the top of the screen to indicate that the pairing is in process, and will disappear once it has completed.
