Use at your own Risk
There is a company called Atrovox biz. They have a VSR-2500, the file inside says 2300b. I have heard a lot of people say they cannot change the keys. There is also a download for the VSR-3000, inside the VSR-3000 2 ci file there is a 5300B bin file. It is a pal file but can be changed NTSC via the menu (this has to be done while the screen is scrolling in the PAL video. Just remember where the tools menu across the top of the screen is located and also remember the NTSC/PAL settings are in the system settings the first to change and stop screen rolling is 5 down from the top and the next change is down 2 more(7).Keys for providers in NA need to be upgraded.
The coship 5300b works for about two hours then goes to black screen, and has to be reloaded with standard 5300b bin. Typeing 7799 at the program menu or 7799 at the ci interface will give you a key edit under the ci interface menu.
There is also a file called auto update for the 2500 and 4000 for preloaded receivers. This file is dated 2-25-2004, the other files were created in 2003.
The autoupdate file for the 2500 and 4000 have a patch file and an updater for the Astrovox. I Think once these other files are loaded into your receiver you need to patch with the autoupdate patch. I could not get it to work I got a write failure on a 5300B, I do not know about the 2300.
The 5300b file is dated 2-24-2004. If you do a hexedit on the patch file it also says inside VSR-3000. So I think maybe the 5300B need to be patched.
But Like I said useing the autovox tool on the 5300b I get write error.
If the 5300b gives you a blank screen, if you turn the power on the back off and on it will give you a err.0, but you can still load a standard coship bin.