I'm trying to put an AT&t SIM card into an LG v20 T-Mobile phone
T-Mobile’s SIM unlock policy is pretty straight forward. If you meet the requirements, you can give Customer Care a call and request the permanent SIM unlock for the device.
SIM Unlock Policy | Unlock Your Mobile Wireless Device (t-mobile.com)
Already have an account? Login
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.
Sorry, we're still checking this file's contents to make sure it's safe to download. Please try again in a few minutes.
Sorry, our virus scanner detected that this file isn't safe to download.
We use 3 different kinds of cookies. You can choose which cookies you want to accept. We need basic cookies to make this site work, therefore these are the minimum you can select. Learn more about our cookies.