Every time I try to download/update on my iPad it will always ask for the old Apple ID user password on my iPad even tho I changed the Apple ID.
This iPad use to belong to my Grandma until she gave it to me so I decided to Merge the iPad to my iPhone but when I go onto the App Store I can't download or update anything since it keeps on asking for my Grandma Apple ID.
iPad, iOS 13
Thats the problem, the ipad should've been erased prior to you taking over. What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch - Apple Support
Have you sign out of her account and sign in with yours?
Thats the problem, the ipad should've been erased prior to you taking over. What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch - Apple Support
Have you sign out of her account and sign in with yours?
Old email account
