When a new iOS update arrives, expect to run into a few head-scratching problems. Not to worry — Heres seven tips that provide answers to several of the questions you may be asking.

  1. Transfer keychain password data from your old to your new one
  2. Enable iOS 4’s data protection
  3. Deal with iOS 4 slowdown on an iPhone 3G
  4. Find your iBook purchases
  5. Find the Hold button
  6. Manually quit apps to solve hang-ups
  7. Enable Internet Tethering?

Solutions: Bugs & Fixes: Seven iOS 4 troubleshooting tips