Identify equipment being replaced versus updated. Confirm required hardware to be replaced, current software versions. Coordinate the outage and update sequence with the store and dispenser technician.

Block outside sales. Confirm active transactions are finished. Run end of day and confirm completion.

Copy required files from each affected device. Verify the backup is readable and stored somewhere other than the equipment being replaced. For more details follow the other instructions for backup.

Replace hardware where required. Upgrade the MWS and SC to SLES 15 SP7. Restore required files and confirm device/network settings.

Install the required SC and CCL code for the setup for that store. Reboot and verify.

Replace the pin pad and/or update XPI using the four USB files, as applicable.

Complete and verify dgroup changes using the laptop utility. Update POS code and verify the expected version. For details on dgroup changes see Visa 2.0 dgroup Utility doc

Get confirmation from the dispenser technician that all applicable dispensers are updated.

Complete the defined inside and outside transaction tests. Confirm reports and receipts as applicable. Restore sales and record/report any unresolved issues.