MT2500 Question

[win6027]

I recently bought a Snap-on Super-Deluxe Scanner: MT2500; and haven't had any luck with getting it to work, it did not come with a manual just the troubleshooting books for Honda, Ford etc..
When plugged into the vehicle (any) all that shows up on the display are black squares; It is my first time using the scanner and I have no previous experience with them. Could someone please lend some insight as to why I am having this problem?

[Joe Rappa]

If all you have is solid blocks, it sounds like something is broken. You can try calling the tech support line, but that scan tool is no longer supported for repairs.
Tech line: 800-332-2526

[Rich Shepherd]

I recently bought a Snap-on Super-Deluxe Scanner: MT2500; and haven't had any luck with getting it to work, it did not come with a manual just the troubleshooting books for Honda, Ford etc..
When plugged into the vehicle (any) all that shows up on the display are black squares; It is my first time using the scanner and I have no previous experience with them. Could someone please lend some insight as to why I am having this problem?

Try connecting to a vehicle without a cartridge inserted in the scanner body and see if it displays a message to insert a cartridge.
If it does, try another primary cartridge if you have one.