On some cellular phones and networks, dialing this sequence: ##786# or *#786# can give you access to some hidden menus or will start a network monitor application. If this does indeed work for your phone, add your findings to the comments below with the model of phone and network you're seeing this with.
*#52828378# enter this code then secret menu open then go to ota type setting increase maximum jar size limit and install any jar above 300kb. tipofday - Jan 12 2012 9:59AM
*#123# this works in all samgsung mobs. Eddy - Apr 9 2011 11:01AM
The ##786# worked on my Samsung instinct s30 (sph m810.05) it brings me to rtn view reset screen. This screen provides all info on the phone etc. J DIZZLE - Mar 16 2011 11:11PM
This appears to be either an invalid entry or a format sequence. By format sequence I mean formatting your phone's internal memory. I'm not quite sure this is legit. Joey Sumanski - Nov 25 2010 10:19PM