How to Check Lonsdor K518ISE Update Expiration Time?

How to know whether your Lonsdor K518ISE/K518S key programmer device get update package or not?(or check the update expiration time)
First of all, please check click one key update/check for updates on device (Very important step!!!)
Then click Setting-> Device info.,find Paid function, you will see the final update time on device.
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