# Magnetic Stripe Readers

### Tablet MSR

* [**Should I use an HID vs Keyboard MSR?**](magnetic-stripe-readers/hid-or-keyboard-msr)

### **What MSR do I need?**

#### POS MSR&#x20;

If the light on the magnetic strip reader is flashing regularly this means that you may have a hardware failure.  Different POS machines use different card readers, sometimes manufacturers change their readers from year to year. begin by trying to identify the MSR you are using and then refer to the hardware manual for trouble shooting tips.

#### ID Innovations

The Touch Dynamics Flex POS uses the IDInnovation MSR, [the user guide on their web site states the following on hardware errors](http://www.idinnovations.com/downloads.html) :

#### Hardware Errors

Each time the Card Reader is powered itwill go through a system check and verify that all of its hardware is functioning\
properly. If the Card Reader finds a problem it will sound a series of error beeps and/or LED changes. The following is a\
list of error beeps and LED changes and their meaning.

Classic Line\
SLOW BLINKING ORANGE LED CPU ERROR\
LOW,MED,HIGH BEEP PROM ERROR\
FAST BLINKING ORANGE LED RAM ERROR\
LOW FOLLOWED BY 2 HIGHER BEEPS EEPROM ERROR

Value Line\
FLASHING RED LED, 3 BEEPS CPU ERROR\
FLASHING RED LED, 4 BEEPS MEMORY ERROR\
FLASHING RED LED CONTINUOUSLY DECODE CIRCUIT ERROR

There is a manual attached here, but you should check the hardware manufacturer site for their most current guides.
