![msr605x track1 erorr msr605x track1 erorr](https://image.made-in-china.com/202f0j00iThGWykzHdcU/Msr605X-USB-Port-Magnetic-Card-Reader-and-Wirtter-ISO-Aamva-Formats.jpg)
The first digit specifies the interchange rules, the second specifies authorization processing and the third specifies the range of services. Usually, but not always, matches the credit card number printed on the front of the card.
#MSR605X TRACK1 ERORR VERIFICATION#
![msr605x track1 erorr msr605x track1 erorr](https://m.media-amazon.com/images/I/514Vi+Gw6AL._AC_.jpg)