Had Samsung S10+ purchased from Verizon years ago. Bought new Samsung S22+ from Amazon. Dropped Verizon. Signed up to PureTalk. Selling old phone with no SIM.
1. How do I tell if old phone is locked to Verizon?
2. Would I mess anything up if I temporarily tried old phone with PureTalk SIM?
3. Who supplies updates to phone if buyer does not go with Verizon?
1. How do I tell if old phone is locked to Verizon?
2. Would I mess anything up if I temporarily tried old phone with PureTalk SIM?
3. Who supplies updates to phone if buyer does not go with Verizon?

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