Not able to download free apps

What happens when you try? If you're getting an error message, what does it say?

Fix whatever the problem is with the payment method in your Apple ID account. You need to have a valid payment method registered even for free apps. See the Apple support link below. Choose the one that best meets your situation.

Change, add, or remove Apple ID payment methods - Apple Support

Create or use an Apple ID without a payment method - Apple Support

Payment methods that you can use with your Apple ID - Apple Support