@Scrivartha,
if you havn't figured out already, you will find a 505 ist practically unbrickable.
Get the special updater by porkupan/boroda form
here and run it. If needed see additional instructions
here or check the WIKI pages for unbricking.
For your problem there are 3 solutions
- Use igorsk universal flasher. (version 1.1.00.18040 after reflash with updater mentioned above), but doublecheck your XML file for syntax!
- go thru the steps to build a custom prs+ installer, but doublecheck your XML file for syntax!
- install unmodified prs+ and use prsp.sh to mount --bind your modified applicationStart.xml (method is described in post #1563 for fonts but will work with *.XML, too