Canon VIXIA GX10 with C-LOG3?
First, some disclaimers:
None of the following is recommended by myself nor DGrin, and certainly it's not approved by Canon.
You must not use the following process on a new GX10, as it will void your warranty.
If you attempt any of the following it is at your own risk and your own responsibility. No one will help you if it fails and destroys your camcorder.
Nothing below should be expected to translate to the Canon Legria GX10. Just don't do it.
The following is for entertainment value only!