Thank you for being with Samsung and sharing your concern. We would like to offer some troubleshooting steps to overcome the issue: 1) Try different USB cable with the device and also check the USB cable with your device. 2) Install USB driver in your device to check the issue. You can download the drivers from the mentioned link https://www.samsung.com/in/support/model/GT-I9100LKAINU If the issue persists, We would request you to provide logs/video within 15 minutes of issue occurrence by registering this feedback in Error Section (Samsung Members App -> Feedback -> Questions/Errors -> Create -> Error reports) so that your concern can be resolved soon. Be sure to hit ♡ when you find an answer that works for you. For Further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/
