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Florida

I have two EMS USB cartridges, both in working order (powers on, retains saves, etc.). However, whenever I plug them in, they are not recognized at all even when having gone through all of the driver signature hoops on Windows. I have also tried ems-qart and at least one other method on Linux (Pop_OS) to make sure I wasn't missing anything. I've tried different cables and have even jiggled the plugged in cables around a bit to make sure it wasn't a loose connection. The carts are probably about 10 years old at this point, and I don't know how well they're supposed to hold up. I'm considering running a soldering iron over the pins to see if there's a loose connection between the port and the cart board proper, but I'm unsure if that would work. Would someone give me advice on any possible fixes?

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=

Maybe check another way first
Maybe it will be useful

https://youtu.be/2gQcC8Nd3-s

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Czech Republic

Yep. Try GB cart tool for Adroid, it's the easiest way. But no multiple games per cart..