https://us.community.samsung.com/t5/Galaxy-S21/Read-Receipts-Delivered-Typing-not-available-in-Messages/m-p/1702627#M6326 its an old version of the galaxy s family. All you do ia take out your tmobile sim card from one phone and put it on the new phone. theres no need of activating it through T-mobile, its as simple as adding a storage card to your phone. well if you have an older version phone since samsung stoped adding that slot too🤦🏾‍<span class="lia-unicode-emoji" title=":female_sign:">♀️</span>🤦🏾‍<span class="lia-unicode-emoji" title=":female_sign:">♀️</span> Sat, 13 Feb 2021 22:07:06 GMT MariaJM 2021-02-13T22:07:06Z