Updating firmware on magic jack
Software updates can often remedy performance issues and are not to be skipped, particularly if a performance problem is related to a bug or some other problem that has been resolved in an available update.
For getting any updates to i OS 11 (such as i OS 11.0.2, i OS 11.1, etc) If you just updated an i Phone or i Pad to i OS 11 and the device feels slow, have some patience.
Then just wait for the device to boot back up again.A common troubleshooting trick is to backup a device to i Tunes or i Cloud, then restore i OS. Using i Tunes with the device connected to the computer, you then choose to “Restore” the device.This can sometimes fix obscure performance issues, and if you contact Apple to troubleshoot a device they will likely want you to perform this action as part of their process. Or you can choose to Restore directly on the device itself and select either i Cloud or i Tunes backup to restore from.The best thing to do is wait a few days, leave the device plugged into a wall outlet overnight, and let it complete whatever system behavior is necessary.After a night or two things usually behave normally again and performance is often better, and often this fixes battery life problems too.