Hi, thank you for your answer.
I had tried many firmware from the page you give me, some works but i have a big problem: None of this firmwares have the display driver for my MP4, is a
FPC-C177VHS-3-A1.
My MP4 looks like this one
In fact, in this post
Please Upload your Players Firmware Today, theres a firmware for this model, but the link to download is dead; so if you can point me in the right direction, thanks!