It sounds like your adapter was developed earlier than the EOS Rebel T4i/650D. The third party makers of such adapters don't license technology from Canon, they reverse engineer it. If Canon starts using a part of their existing protocol that hasn't been used in the past, reverse engineered third party products sometimes don't work with the new devices. This happens with third party batteries, lenses, teleconverters, flashes, etc.

Some lens makers will issue firmware updates to make their slightly older lenses work with newer camera bodies. Sometimes that requires a trip to a service center to reprogram or change a chip. Recently both Sigma and Tamron have created USB docks that attach directly to the lens that allows the end user to update firmware (and do other helpful things as well). This allows them to bypass trying to update a lens using the interface on the incompatible camera.

Many third party battery makers will replace batteries that were already in dealers inventories with newer versions that have updated firmware reverse engineered after the release of a new camera body if the buyer contacts them and explains that the battery was purchased to be used in a recently released model that has an update making the older version of the third party battery incompatible.

For lens adapters, though, I've never heard of makers/sellers sending a buyer a newer update if the adapter they bought doesn't work with a newer camera. It couldn't hurt to contact them and ask. Considering that the EOS Rebel T4i/650D has been out for quite a while, I wouldn't expect much luck on that front. They're just as likely to say something like, "You should have read the description before you ordered it."

If the chip is programmable and can be updated to work with the EOS Rebel T4i/650D, you're going to have to connect to it using an interface other than your camera.