Replacing the card reader depends on the model installed.
Chip Card Reader
Chip card readers are often equipped with tamper switches on both the card reader and pin pad. Partly unscrewing the reader may already trigger the tamper switch making the reader useless. If this is the case, the reader must be sent back to the supplier to reset the switch.
Reference: How to safely dismount and mount a reader is described in the reader's installation guide: e.g. 3C XENTEO ECO Mounting instructions CWT C with CPU board 0501-E0150 |
MagStripe readers
•Disconnect the cable
•Unscrew the reader
•Mount the new reader
•Connect the cable