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You need to takeover a Lynx Touch 5210 but the installer code is not our code. How do you get in the "back door" to change the code?
What is Disconnect system bat. and power, reconnect both. The system will reboot, red stand-by bar will appear at top of screen, press and hold the home button for 3 seconds or until bar is green, then press arm stay, clear, 0,0 installer code and change the code.