Those looking to upgrade to iOS 5 but are worried about the problems that other users have faced should probably cool their jets and let others find the bugs in the system, AppleBlog’s Darrell Etherington said in a Washington Post chat Thursday.

He also offered a tip: The installation removes the apps from your device, but you can get them back by going to the App Store on your device, head to “Updates” and then “Purchased.” You’ll be able to download all your purchased apps from there, a Etherington said, and he recommends organizing them in iTunes before syncing with another device.

Problems for customers upgrading to the new version of the iPhone’s mobile operating system have mostly calmed down as Apple servers cooled. There were few new threads Friday on Apple’s customer service forums complaining about upgrade problems.

After the iOS 5 launch on Wednesday, Apple customers took to Twitter, Facebook and Apple’s support forums, complaining that their phones and tablets had been wiped — or worse, bricked. So many people were having problems with the update that the upgrading error message, “error 3200,” nabbed a spot as a worldwide trending topic on Twitter.

According to posts on the support forums, the company told users that 3200 errors meant that there was simply too much network traffic to process requests and that users should try again later.

For those whose phones were wiped or frozen, many found that resetting the device and restoring it from the back-up files on their computers took care of most of the problems.

Users also reported problems registering with Apple’s iCloud service and enabling cloud backups as upgraders rushed to make new accounts.

InformationWeek pointed out that Wednesday’s upgrade woes had echoes of Apple’s joint iPhone 3G/iOS 2 launch in 2008. With the iPhone 4S launching Friday, Apple should make sure that its servers can take another hit from phone activations.

Users who haven’t upgraded yet should back up their iDevice before taking the plunge. This can be done manually by control-clicking or right-clicking the iPhone, iPod or iPad in iTunes and selecting “Back Up.” In the event of a problems, users can retrieve their information by choosing ”Restore from Backup” in the same menu.

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