1. Download firmware 1.3 from here
http://rapidshare.com/files/172723086/firmware1.3.zip
2. Download Universal Updater from here
https://www.mobileread.com/forums/showthread.php?t=26831
3. Unzip UniversalUpdater to "any folder".
4. Unzip firmware1.3.zip to the same "any folder" and RENAME it to "new_opt.img"
5. Copy the contents of "any folder" to an sd card and put it in the PRS-505.
6. On the PRS screen choose number 4 (you need to copy the firmware to the device)
7. When this is done choose "Flash new firmware".
8. Wait for it to complete and reboot.
DONE!