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Find and Register your UDID
Verified iOS Device Enrollment

Great Customer Service

 Registration Guarantee: 15 minutes

We are committed to properly registering your device with the Apple Developer Program. You will recveive a confirmation email on time, guaranteed. It’s why Macworld calls us “one of the most popular online resources.”

Register directly on iPhone or iPad

You don’t need to use a Mac or PC. You can find your UDID, register it, and install the beta — all directly on your iPhone or iPad. This is the easiest, fastest, most reliable way to install the iOS 11 beta:

Find and Register your UDID

  1. Using Safari on iOS download a special Device Enrollment Profile.
  2. Check that the Profile is signed by www.udid.co and Verified .
  3. Install the Profile, which will securely find and send your UDID to our website. (The Profile only contains a Device Enrollment. Only your UDID is sent. The Profile will then be automatically removed.)
  4. Complete your PayPal purchase.

Register on Mac or PC

  1. Connect your iOS device to your computer using USB.
  2. Select your iOS device in iTunes.
  3. Click on Serial Number and switch to UDID.
  4. When the UDID code is displayed, select the Edit menu, then Copy UDID.
  5. Paste the UDID in the form above and complete your PayPal purchase.

Frequent Questions

What is a UDID?
Every iPhone, iPad, iPod touch, Apple TV, and Apple Watch has a 40 character Unique Device Identifier (UDID). Your device’s UDID is not its serial number; the UDID and serial number are very different.

Why do I have to register my UDID with Apple?
Apple will only activate iOS 11 beta software if the device’s Unique Device Identifier (UDID) is registered with the Apple Developer Program. Before activating iOS 11, Apple verifies that the device is registered. If you have registered your device’s UDID with Apple in advance, you can easily install and activate iOS 11.

How long will registration take?
The registration process is fast and simple, and your registration time is guaranteed. You will receive a confirmation email when your device is registered.

 Registration Guarantee: 15 minutes

Can I update to watchOS 4 betas?
Yes, just register your iPhone — there is no need to register your Watch. After registering your iPhone, you will receive a confirmation email with links to your iOS and watchOS Beta Software Profiles. Install both Profiles.

Install iOS 11

Before you install:

  1. Submit your UDID and complete your PayPal purchase.
  2. Ensure your device is registered with Apple. You will receive an email from udid.co confirming that your device is registered.

Installing iOS 11 with over-the-air software updates:

You do not need a Mac or PC to install the iOS 11 beta. These steps will enable over-the-air software updates:

  1. Open the link in your confirmation email using Safari or the default Mail app — only these two iOS apps can open this special link.
  2. Install the iOS Beta Software Profile signed by Apple Inc.
  3. Tap: Settings > General > Software Update
  4. Tap: Download > Install
  5. After installing the beta, your device will reboot and will require a network connection to complete the activation process.

Installing iOS 11 with iTunes:

  1. Do not rely on iCloud backups. Using iTunes 12, “Manually Back Up” your device to your computer. Select the “Back Up Now” button to save a backup of iOS 10. If you decide to downgrade to iOS 10, you will not be able to restore from an iOS 11 iCloud backup.
  2. Mac: Hold the option key down and select the Update button.
    Windows: Hold the shift key down and select the Update button.
  3. After installing the beta, your device will reboot and will require a network connection to complete the activation process.
  4. If you selected the Restore button instead, after your device activates, restore from the manual back up iTunes created in step 1.

Download iOS 11

iOS 11 developer beta 2, build 15A5304i

Supported Devices

Help Documents from Apple

Over-the-Air Software Updates

Over-the-air software updates are the easiest, fastest, and most secure way to install iOS 11 betas.

  1. Open the link in your confirmation email using Safari or the default Mail app — only these two iOS apps can open this special link.
  2. Install the iOS Beta Software Profile signed by Apple Inc.
  3. Plug your device in to power and connect to the internet with Wi-Fi.
  4. Tap: Settings > General > Software Update
  5. Tap: Download > Install
  6. After installing the beta, your device will reboot and will require a network connection to complete the activation process.

Restore Images

If you would like to use your Mac or PC to upgrade or restore your iOS device with iTunes, download a Restore Image.

Contact Support

 Email Support: 7 AM to 11 PM Eastern Daylight Time

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