Iphone help: Syncing apps and updating IOS?

I just received an iPhone 4 from a friend, and some of her apps are still here. (These apps were downloaded from her account) I also want to update the IOS, but when I do, it tells me that all media files will be erased. I tried syncing apps to my account, but it won't transfer. I don't want to erase any of her files, just in case she needs it. How do I make sure that all the media files are kept, but I still get to download the newest IOS?

The problem is, assuming your friend used her iPhone tied to her Apple ID, and your iTunes uses your Apple ID, iTunes, iPhone, and the Apple IDs will interfere and will request for one of the three to be wiped out.

If Apple ID) You will no longer be able to access the old Apple ID on the device for. I believe it was 3 months

If iTunes) The content on your iTunes would re-sync to what's on the phone, wiping out what you have; or

If iPhone) Which what would happen when you update from iOS 4 anyway, you lose all your content on the phone.

The bottom line is, if your friend really needs something from the phone to be backed up to her computer before giving it to you, tell them to do so. By the end of the update process, the content has to be gone from access one way or another.

  • Will updating my iPhone apps affect my phone speed as how updating the Operating System (OS) will? Currently I'm using the iPhone 5s on iOS 8.3 I know if I were to update my phone to the latest OS I may notice some slowdown on my phone's performance, since it may not have the "muscle" to handle certain functions. Many apps now are optimised for iOS 9 and/or the 6th generation phones. Will my 5s' speed performance slow down if I update my apps? Will the app's performance slow down?
  • Will updating my iphone 4s iOS erase my apps? I have an update available to a version 6 for my iPhone 4s, I have the memory space needed but I'm afraid i might lose my apps and the data that is with em. Will it erase my apps? Or will they be there when the update finishes?
  • Why is my iPhone and iPod syncing apps with each other? Okay, so every time I download an app on my iPhone it also downloads on my iPod? Where can I go in my settings so this can stop?
  • Updating jailbroken iPhone 4s iOS 5.1.1 to 6.1.3 help needed? Full story: I bought my iPhone off a friend, who previously got it on bill pay, but stopped paying the bill, so they disabled the phone. He got the phone jailbroken to bypass that, and now the phone is working properly, pay-as-you-go, but it is jailbroken. The phone will NOT work without being jailbroken. I was wondering how do I update it from iOS 5.1.1 to iOS 6.1.3? (Keeping in mind it NEEDS to be jailbroken to work)