cant boot after update to macos 15

Hi I have a macbook pro 13inch from 2015 I have installed macos 14 with OCLP 1.5.0 After updating to macos 15 system keep showing black background and a passowrd bar and cant login to system it keep waiting and dosent load the bar... Now i have access to safe mode and boot the system and update OCLP to version 2.0.0 and after that i have opened post install menu and applied root patching Now system boot in normal mode and show lock screen wallpaper but after entering password dosent load the system and keep on loading and dosent fill the loading bar And after a while system restart it self. Now i have tried 20 times but i cant go to safe mode I have turn off system completely (using power button , using shoutdown in lock screen, using Command + option + R + P method and ....) After pressing power button I'm pressing option key and boot menu showing Select EFI boot Keep pressing shift button ok keyboard (loptop keyboard , external keyboard) and selecting enter option (here i just have a hard disk and a up arrow , i press shift and select my hard and select up arrow) and its do a normal boot I cant go to safe mode again.... I haven't another mac and can't create another OCLP usb installer... I have a windows device and tried to create bootable macos 15 and macos 12 usb but dosent showing in boot options so i can't do a clean install I cant install original macos 12 I cant install latest macos 15 And on windows i cant create a OCLP usb installer.... So now my only option is go to the safe mode , install latest OCLP , do a post update root patching and reboot to trying login ..... Please help me to fix this problem