Driver for magtek 21040074 - Miscellaneous

Google does have an owners manual for your Magtek pn

Magtek offline code S43 is a security lockout due to tampering, EMP, or powering on and off again several times in a row. You need to call your credit card merchant processor to repair or replace your credit card machine. There is no DIY fix for this. The unit has disabled itself permanently. Magtek IPAD 100 is discontinued by the manufacturer and cannot be repaired by your credit processor, nor yourself. If you have a Magtek IPAD 100 you will have to purchase a new credit card machine from your credit processor. I hope this helps! -Brad

I was just researching this and from what I can find, that code means that the internal tampering sensor has been triggered, meaning the your device is no longer usable. It either has to be repaired or replaced by MagTek.

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those readers will read any card with a mag stripe need to have the programing cards to make it work they can be a pain

The best tool for keeping your drivers up to date is: driverupdate us Its, easy to navigate (user friendly) and easy to install. take a look

no its not comptbl

Try http://www.manualsonline.com/ for all instructions and manuals