As per your concern, we request you kindly perform the following steps to resolve your issue:
S Pen disconnected issue If you receive an error that says you need to connect your S Pen to your smartphone or tablet, it could be because the S Pen needs to charge or because it's too far away from your device. Another possibility is that there is magnetic interference with the S Pen.
Note: Make sure to regularly check for updates on your device. S Pen models that do not support Air actions, such as the S Pen Fold Edition, will not have this issue.
Check the S Pen's operational range.
1: For Air actions or Remote features to work, the S Pen needs to be within 30 feet of your phone or tablet with nothing in between.
2: If you are far from the phone or tablet and you try to use Air actions (such as opening the Camera with the S Pen), there will be a lag between the button click and the command.
3: If the S Pen is farther than 30 feet away, the connection will be lost. You will need to reconnect the S Pen by inserting it back into the phone or attaching it to the tablet.
4: If the S Pen and device are too far away from each other and disconnect, they will automatically reconnect if they become close again within five minutes.
Check after removing and reinserting the S Pen: Remove and reinsert the S Pen to see if it connects to the device. This step only applies if your device has an integrated S Pen.
Charge the S Pen: Charging your S Pen will be different depending on what kind of device and S Pen you're using: 1: Phones with an integrated S Pen: Insert the S Pen into your phone to begin charging it.
2: Tablets with an S Pen: Attach the S Pen to the designated charging spot on the back of the tablet. On the Tab S6, the S Pen's tip should face away from the camera. On the Tab S7 and S8, the S Pen's tip should face the camera.
3: Devices with an S Pen Pro: Use a USB-C cable to charge the S Pen whenever its battery is low.
Check your device's settings: Make sure Airplane mode is not enabled. You can use Power saving mode with the S Pen as long as the "Limit apps and Home screen" setting is not turned on. These features automatically disconnect the S Pen's wireless functionality.
Check the app permissions: To communicate with your S Pen, the Air command app must have the permissions for Nearby Devices and Physical activity enabled. Settings > Apps > Filter and Sort > Switch by Show system apps to turn it on > OK > Air Command > Permissions > Nearby devices > Make sure it's set to Allow. Do the same for Physical activity.
Check your case:
If the back of your Galaxy phone or tablet comes into contact with a magnet, the S Pen may not be recognized. Cases made by Samsung may contain magnets, but they have been specifically designed to fit your phone or tablet without interfering with any function, including the S Pen. Verify that your case, or other accessories, are not magnetic. If any of them are magnetic, remove that accessory and then try reinserting the S Pen.
If the error still appears, you can try resetting it. Please be aware that if you customize any of the remote features or other settings, resetting the S Pen will return them to their defaults.
Reset the S Pen: If you're using a phone, insert the S Pen into your Galaxy phone until it clicks into place. If you're using a tablet, attach the S Pen to its designated spot.
From Settings, search for and select Air actions. Tap Air actions again, then tap More options (the three vertical dots), and then tap Reset S Pen.
Your S Pen will now be reset and you can begin using it again.
In case the issue still occurs kindly visit the service center for a physical inspection of your device. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/
