You may need to restore data such as contacts, notes, calendar, music, photos to your device; transfer data from the computer or an old device to your present one; speed up your device to smoothly run the new i OS 8; learn some useful tips on how to extend battery life of your device.
For a smooth update to i OS 8, it is essential to do some advance preparation, like check the compatibility of your device; Free up space on your device for i OS 8 requires at least 5.8 GB of storage; Back up your device data etc.
How to Restore Your Device After i OS 8 Update How to Recover Lost Data After i OS 8 Update How to Transfer Data After i OS 8 Update How to Speed Up i Phone/i Pad After i OS 8 Update Extend the Battery Standby Time of i Phone/i Pad/i Pod touch It is not uncommon that when you update to i OS 8, all your device data and other settings may get wiped.
Is there any solution to restore all your lost contacts back?
Yes, of course you can restore deleted contacts from your Android phone.
The most likely culprit for this loss of speed is the memory (or not enough of it).