"Touchscreen unresponsive from time to time"に関する回答Did you ever get this worked out? Have you checked to make sure you have at least 10% free storage space on your device? Clear out the multitasker as well. New iOS updates have been known to give legacy devices problems. Apple says that multitasking doesn't affect performance, I beg to differ. All of my iDevices are Jailbroken and when I clear the Multitask bar, I can watch my available memory jump up. A dud screen will have consistent dead spots. Usually the same spot in every app and screen. If it is just taking a year(iphone time) to respond (real time is like 60 seconds), then it's most likely software related. Have you restored and setup as a new device? Do not restore from backup as maybe your backup is corrupt. If the problem persists, there might be a bigger problem with your logic board. Doubt it though. I know it's been a year since you've been here but I came across this looking for links for a customer of mine with the same issue. Really just posting some info and curious I you got it worked...