If you can have the screen displaying Tampered, you have to press the red button for long time and you'll see that the wordtampered will disappear and the Pos will be ok. But if you need to restart you'll see tampered again. The solution is to re-insert the master key
Search Ebay for TAMPER removal
Search Ebay for TAMPER removal
verifone Vx510 Vx570 TAMPER message removal dial or dual comm www.CardSystemTechnologies.com
Where do you get a Master Key?
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Bad RTC can be repaired. the machine is equipped with multiple sensors inside. if one of them goes bad, tamperring or bad RTC board will come up. call (775)358-2922 look and maybe we can help you. thanks
RTC is the Real Time Clock and is failing. Powercycle 5 to 6 times and it will reboot and show TAMPERED, the device will work but error will arise again.
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