Editing the UID of an arcade card

As the title states I have an Arcade card that seems to be pretty easily editable.

When read this is the 15 sectors I get from it. Sector zero line one containing the UID information. It lets me edit this value no problem, and I guess my next step would be decoding (if even necessary) that info, and trying new UIDs till one shows up with a different value of credits on the card.

This would be for education only, the card is for an arcade that was shutdown and I purchased some of it's leftover rfid readers and cards, I've already attempted the contact the manufacturer and they told me without purchasing their machines first they would not be willing to share their software. At first I didn't mind but after seeing the price of the machines I made it a personal conquest to do it without their help.

Here is the RFiD dump

Secor 0 3E36F620DE0804006263646566676869 00000000000000000000000000000000 00000000000000000000000000000000 FFFFFFFFFFFFFF078069FFFFFFFFFFFF

Sector 1 - 15 (all the same) 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 FFFFFFFFFFFFFF078069FFFFFFFFFFFF

submitted by /u/Firmlygrasp1t
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from hacking: security in practice https://ift.tt/c1Khpl4