Is it possible to flash the firmware of a camera to add features? I have an older DSLR from Canon. Over time Canon has introduced features for example 5 photo bracketing instead of 3. When I look at the newer models, the specs are almost the same. The only difference being the sensor. This should not affect things like bracketing and custom focus options.
This leads me to believe that many features are simply software in nature. I know I can download firmware updates for any camera but switching from one firmware to another via update seems very risky and I doubt the automated software will recognize it.
I have loaded new bios on GPU's to get extra performance. Is there a way to do this on a camera without bricking it?
Answer
In some degree you are right about some options which depend of the software. As one example I can give you 77D and 70D. As you can suppose first is new model, which have option to set maximum Auto ISO, but not minimum shutter speed as it is possible on the old model (when on Auto ISO). (comments on this answer)
But some things depend on the hardware and this is not only the sensor but also the processor, heat balance, focusing system, etc.
I am afraid your try to install Canon firmware from other model (even if its successful as process) may brick the camera.
But you can try Magic Lantern. When download this software be careful about the firmware level your camera must have. Here is for example one firmware for 500D
The good thing about ML is you do not touch the original firmware, you run this software from SD card and you can easy switch to the standard firmware by removing the card and restart the camera.
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