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1. So now and then the readers sends tamper alarm messages, with the latest tested firmware it looks like the reader does not “lock” himself anymore. It looks like this happens when there are multiple cards in the field.

2. Reader beep is not correct suported by Deister, advice don't use

3. After setting the security key, there will be an error “Failed to verify PD cryptogram” , reboot device to solve this.

4. The reader does not report that there is a card reader available, solution set No reader in capabilities.

5. Changing keys afterwards could lead to Key mismatch issues, advice dont change keys afterwards

9. iProtect settings SIC 6347

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