How do you reprogram the entry system on a Tesa HT20i lock system?

jhostman

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My manager asked me to see if I could figure out how to reprogram our entry locks, as they open without a keycard now and aren't supposed to. I spent forever on hold for tech support before leaving them a voicemail, and the manual they gave us has nothing on troubleshooting, nor does their website. Tesa is now named Onity, but still provides support, in theory, for the Tesa locks - if you can ever get someone on the phone. Any ideas what needs to be done to fix the locks?
 
how to reprogram tesa locking system

Can someone please tell me how to reprogram the tesa HT20i ? I can not get this thing open
 
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