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Updating Parameters and Receipt Information
The S90 updates itself from WTG every time it is turned on. If a change is needed, just reboot the
terminal to get the new information from WTG.
Activating the S90
When the terminal has been assigned to a new merchant in WTG, the following steps complete the
Deactivation and Activation process.
1) Power Cycle the terminal
2) Before pressing any other key - Press Function 0 (password 0000)
3) The terminal will go through "GPRS Active, Connecting XX Parameter OK, Activation OK, Init
Key OK".
4) When completed, the terminal is ready to use by the new merchant.
Tip Feature
When the Tip feature is On, the S90 will prompt for the Transaction Amount, the Tip Amount and will total
the 2 amounts for the Authorization. It will NOT print a Tip Receipt before the Approval like the
MTT15XX/way5000.
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