TMM has confirmed that the emed tests can be used for BVI entry as long as you supply the written results report - photos not accepted you - must PDF the report (same with USVI).
I just got off the phone with emed. They are open 24/7 - even on holidays.
Screenshots of the pdf results are accepted by USVI. You just can't take a picture of the negative test sitting on the table. Be careful if submitting pdf. Make sure they are not password protected.