Call them
Hi Pamela, a battery replacement for the S7 is $129.99, and we would include cleaning and aligning the charge port in that price. If the port has any liquid damage or other serious problems, you have to replace the screen because the screen and port are all one unit, which is $249.99 and not really something we would recommend economically for an S7. Diagnostics are always free, so calling or visiting the store is the best way to proceed.
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