Straight Talk/ Cricket Sim Compatible
I purchased a Straight Talk IPhone can I use my Cricket Wireless SIM card in the Straight Talk phone with out having to request an unlock?
iPhone 6s
Question marked as
If you have a contract with Straight Talk, you will need to work with them to unlock your phone to use another carrier's SIM card.
Ref: How to unlock your iPhone for use with a different carrier - Apple Support