Originally Posted by sgtcasey
If you are getting any type of error that prevents the device from booting up all the way, you won't get a connection on the desktop manager.
Do this: Remove the battery and leave it out. Then plug in your device and double click on the Application Loader icon. Then just go through the software loading process like you normally would. About halfway through the updating process, put the battery back in making sure to not disconnect the device from the PC.
Thanks so much Dave! I had a rough time yesterday trying to figure out what to do with my App Error 523 (I'm using 8900 Javelin btw). I spent the whole day and night trying to finding the solution. (Having mistyped Error 235 in my searches DID NOT HELP AT ALL. Shame one me)
But this helped. Thanks very much.