Here are some tips, that will help you solve the most common problems.
1) I lost all my contacts!
Re-import those who are in the SIM card. Go to: Settings / Mail, Contacts, Calendars / Import SIM Contacts.
2) My touchscreen is crashing for no reason!
You must tap the phone at You are tap the phone at. Restart the iPhone and voila!
3) My iPhone fell into water
You should rather wait until all the water has evaporated before turning it back on. Speeding the process up by using a hairdryer is not recommended. You should rather leave your phone in a warm room, with a temperature not exceeding 40 Celsius degrees. After a day or two, you can try to turn it back on. If the water in question is pure, the odds of your phone working are higher. An iPhone that falls in seawater is less likely to work again.
4) How to recover a completely crashed iPhone?
Switch to DFU mode. Connect the iPhone to the computer and start iTunes. Press and hold the main button-Home button-and the "On / Off" button for 10 seconds.
To exit DFU mode, disconnect the iPhone and press ___ ___ ___ 0 the "On / Off" button to restart it.
5) What to do when your iPhone screen is blocked?
Some users have their very own solution: "tap 3 fingers on your screen for 2 or 3 consecutive times, but not too hard."
6) I lost my apps after an update!
Open iTunes, connect your iPhone, click the "File" menu and transfer your purchases.
7) The "Home" button does not work anymore!
Try calibrating your "Home" button.
Release the "On / Off" button, then press the "Home" button to return to the home screen.
This procedure calibrates the "Home" button. If the problem persists, it could be a hardware issue, resulting from dust inside your phone for example.
8) My iPhone will not turn on!
Try resetting it. Press and hold the "On / Off" button and the "Home" button for a while seconds until you, the Apple logo.
9) Ever since I installed iOS 5.0.1, my iPhone keeps rebooting, what can I do?
Remove the SIM card from your phone. Activate 3G and Cellular Data and reinsert the SIM card.
10) I can not connect to the internet, weird uncontrollable issue!
If you have encountered the issues, you must update the solution, you must update the phone. These problems were solved by Apple with the iOS 5 update. Updating your system is there before a more reliable solution.
