The BBPOS Chipper 2X BT can update its firmware over Bluetooth — no cable needed. (It's an older, no-longer-sold reader, but updates still work if you have one.)
- Turn the reader on.
- Open the menu and go to Connect Card Reader (iOS) or Connect Bluetooth Reader (Android).
- When your reader appears in the list, swipe its row to reveal an Update option instead of tapping to connect.
- Tap Update and follow the prompts. The reader connects automatically once the update finishes.
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