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How to hack a vending machine?

How to hack a vending machine? 1.The latest commissioning high frequency radio frequency signal. 2.It is suitable for the machine more and stronger flash alarm prevention ability. 3.Adopt imported transistor has a strong compression capacity. 4.Using grouping hole charge, the power supply voltage can be higher, 5.Charging bore three each 15 to 20 minutes, try […]