I am attempting this configuration change but encountering a few difficulties.
The document that you reference "Please refer to http://sunxi.org/Fex_Guide#.5Bdisp_init.5D" does not appear to be available. After some research, I think the url currently would be linux-sunxi.org. When I visit that site directly or through Google, however, the site appears to be down or otherwise not available to me. Can this document be found at an alternative location?
I have downloaded bin2fex/fex2bin for my Mac. The fex file is readable, so presumably the conversion worked. I found code in the fex file that looked like the code above; and made the changes to the values as recommended above. After converting with fex2bin and moving the SD card to my Pro, however, the Pro no longer boots. No blue light. Green does flash off/on. Do you have any suggestions as to what the problem could be?