To activate an iTunes gift card, you'll need to get the 16-digit code displayed on the back of the card. Once the code is obtained, you can redeem it through the iTunes Store to receive the balance.
Step
Method 1 of 3: On iOS Devices

Step 1. Open the iTunes Store app
The icon looks like a musical note surrounded by a circle.
You can also use the iBooks app and the App Store to redeem gift cards

Step 2. Touch Music
This option is at the bottom of the screen.

Step 3. Swipe to the bottom of the page

Step 4. Touch Redeem

Step 5. Enter your Apple ID password

Step 6. Touch Ok

Step 7. Select You can also enter this code manually

Step 8. Find the 16 digit code on the card
The code is written on the back of the gift card.
This code starts with "XX"

Step 9. Enter the code printed on the card

Step 10. Touch Redeem
The amount listed on the gift card will be added to your Apple ID as an App Store balance. You can also use it as an Apple Music membership balance.
Method 2 of 3: On a Desktop Computer

Step 1. Open iTunes
You can find the program icon on the computer desktop.

Step 2. Click your username
The name is in the upper-right corner of the screen.
If you're not signed in to your Apple ID, click Sign in

Step 3. Click Redeem
If prompted, sign in to your Apple account using the appropriate email address and password

Step 4. Look for the 16 digit code on the gift card
The code is written on the back of the card.
This code starts with "XX"

Step 5. Enter the code printed on the card

Step 6. Touch Redeem
The amount listed on the gift card will be added to your Apple ID as an App Store balance. You can also use it as an Apple Music membership balance.
Method 3 of 3: On Android Device

Step 1. Open the Apple Music app

Step 2. Touch
It's in the top-left corner of the screen.

Step 3. Touch Apple ID
If prompted, sign in to your Apple account using your email address and password

Step 4. Look for the 16 digit code on the gift card
This code is written on the back of the card.
This code starts with "XX"

Step 5. Enter the code printed on the card

Step 6. Touch Redeem
The amount listed on the gift card will be added to your Apple ID as an App Store balance. You can also use it as an Apple Music membership balance.
Warning
- When you remove the protective layer of the code, be careful not to tamper with the 16-digit code printed on the card.
- The amount that has been redeemed on a gift card cannot be used to purchase an Apple gift card.