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i dont have the time to read it right now, but i was able to find you this link that should hopefully help- you out!
Cisco Packet Tracer is tool used for network simulation and visualization program.
The two methods can be used to access and modify an existing program that is running on an IoT device in Cisco packet trace are the following:
1. Click on the device then select the Programming tab.
2. Go to the registration server and login. Then select the Editor tab.