my iphone 4s screen is flickering with ios 9.3.5
my iphone 4s screen is flickering with ios 9.3.5
iPhone 4S, iOS 9.3.5
Did you already try the general troubleshooting steps?
1. Force restart the phone by holding the sleep and home button for about 10sec, until the Apple logo comes back again. You will not lose data.
2. In case this does not work, set it back to factory settings, without using the latest backup. Test the screen. If it works, restore from the backup.
Use iTunes to restore your iOS device to factory settings - Apple Support
3. If factory resetting does not help, you'll have to get the phone checked by Apple: