You should never have used this modified bios file for it is old and it was customed made for someone else who gave me their rw everything report to make it.... I am sorry for you blackscreen but you need to try to recover your bios and then send a new request to me along with an rw everything report and I will custom make a modified bios for you.
There is a PH161700.EXE in the Extra folder (packed in the rar file), copy the modded BIOs and PH161700.EXE to the same folder. In DOS type ph161700 /x /FORCE /O /C /S HMA136.WPH <ENTER>
Do you have any type of loader installed? The bios that I posted does not have any SLIC 2.0 left. If you have a loader installed the memory location of SLIC is replaced with the what the loader injects.