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Error 1603 iPhone – Problem and Solution

What’s the Problem?

While restoring your iPhone, if you come across error 1603, don’t hit the roof, as there are millions of users who have already experienced it, and have devised solutions to get around the problem.

Whether, you use Windows or Mac OS for upgrading your phone’s firmware, there is a solution for dissolving the problem. Read on to find how.

The Problem

“The iPhone“-” could not be restored. An unknown error occurred.”

If you witnessed the following message splatter on your iPhone screen, while you were trying to restore it, you have encountered Error 1603 on your iPhone.

Error 1603 iPhone – Problem and Solution image picture photo

The Solution

If Error 1603 strikes you phone, you should place your device into the recovery mode and attempt to restore it, again. Please note that all your important data and files will be deleted during the process.

Method 1: Enabling Recovery Mode

Step 1: Disconnect the USB cable from your iPhone, but leave the other end of the cable connected to your computer’s USB port.

Step 2: Turn off the device by pressing and holding the Sleep/Wake button for a few seconds until the red slider appears, then slide the slider. Wait for the device to turn off.

If you cannot turn off the device using the slider, press and hold the Sleep/Wake and Home buttons at the same time. When the device turns off, simply release the Sleep/Wake and Home buttons.

Step 3: While pressing and holding the Home button, reconnect the USB cable to the device. The device should turn on.

Note: If you see battery pictured on the screen, let the device charge for at least ten minutes to ensure that the battery has some charge, and then start again with second step.

Step 4: Continue holding the Home button until you see “Connect to iTunes” screen.

Step 5: If necessary, open iTunes. You should see the recovery mode

Method 2:

Ensure that you show the hidden files under your folder options.

Step 1: Close the iTunes and disconnect your iPhone from your PC.

Step 2: Go to the following directory:

Win 7 & Vista Users:

C:Users\*UsersName*\AppData\Roaming\Apple Computer\iTunes\Device Support

Windows XP :

C:\Documents and Settings\*UserName*\Application Data\Apple Computer\iTunes\Device Support or iPhone Software Updates

Step 3: Backup the files available in the folder and delete them from that folder.

Step 4: Put your iPhone into Recovery Mode and Restore the Custom firmware

If the above two methods fail to show result, then try iREB (iTunes Restore Error Bypasser) to get rid of the Error 1603

Steps 1: Download iREB

Step 2: Start iTunes

Step 3: Put iPhone in DFU Mode: Press and hold the Home button and the Power button at the same time. After 10 seconds release the Power button, while continue to hold the home button until it detects an iPhone in recovery mode and a black screen appears.

Step 4: Now close iTunes and Start iREB on your PC.

Step 5: Select your device and wait for a few seconds till you get white or a red screen on your iPhone.

Step 6: Open iTunes. Now press and hold left “alt” button (“Shift” button on Windows) on the keyboard

Step 7: Click “Restore” button in iTunes. Select a custom firmware .ipsw file and restore it.

Bingo! Error 1603 on your iPhone is rectified.

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