Marina
Screen reacts only to S pen, not fingers. Any idea which parts to repair/change?
Shall I change complete Lcd?
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LWRepairs
Hi,
I would first try a hard reset if you haven't already. If that doesn't solve it you could try restoring the phone as it may be a software glitch however you will lose all your data with this solution. 
The s-pen and capacitive touch use different digitisers to detect you using either your finger or s-pen i believe, so the capacitive touch may have a fault so it could be a damaged screen which is possible.
Best idea is to try a new screen if you're able to as you won't know till you test it! 
I hope you get it fixed, if you need any other help don't hesitate to contact me.
Let us know how it goes.

Edit* Also try contacting Samsung themselves first, they may help you with this issue under warranty.
Thanks,
Lewis
LWRepairs | Southampton Mobile Phone And Tablet Repairs

lwrepairs.co.uk
info@lwrepairs.co.uk
facebook.com/lwrepairs
02382182397 or 07758697741

GET YOUR PHONE OR TABLET FIXED TODAY!
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