[IPS exchange results in black screen HELP!!]

Could someone help me when I change the red pokemon IPS to improve the graphics (I'm referring to any IPS, does not match any specific), and I log into character in Kanto, is a black screen

And until recently I usually wore to the amended IPS

If I put the original fire rom red it normally comes from where I left off, that start when I switched the IPS to a kalos region, more updated, and thereafter no other returned to work, any IPS I replaced thereafter, the result is a black screen