1.50 kernel support for 3.72 HX-1 PSP

So, you just installed the brandnew 3.72 firmware HX-1 on your shining Playstation Portable but suddenly wonder why your old applications like emulators don't work any longer.
This problem is caused by the use of the 3.72 kernel instead of 1.50 kernel from older custom firmware releases.
But somebody has found a method to solve this.
You can patch your PSP's flash0 and here you find the little tutorial :)

1. If you haven't done so before, install the 3.72 HX-1 custom firmware with this nifty little Easyinstaller. [3.72 Custom Firmware Easyinstaller]
2. Download the 1.50 kernel patch. [1.50 Kernel Patch]
3. Toggle usb flash0 in recovery.
4. copy the file reboot150.prx from your 1.50 kernel rar archive file (located in /kd) to /kd on your 3.72 HX firmware.
5. copy the whole directory /km from your 1.50 kernel rar archive file to the flash0 of your 3.72 HX
6. DONE ^^
   

Well have fun (again) with your 1.50 kernel enabled PSP.