Here is a sample changelog for the iStar A7500 Mega software update:
Plug the USB into the receiver. Go to Menu > Settings > Software Upgrade and select the file from your USB drive. Confirm: Confirm the update and let the process finish. Essential Post-Update Steps
Copy the file to a clean SD card or follow the instructions for a remote iSTAR Ultra controller update if managing through a server. Execute the Upgrade: On the device, navigate to Settings > General Settings > Maintenance and select "Upgrade Firmware." Wait for Completion:
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