There are many, many semi-hidden features/functions on the LG Xenon. LG-Xenon info
LG Xenon General tips:
LG Xenon Phone Photos – LG Cell Phone Pictures

If you don’t pay for Internet on your LG Xenon, please turn your 3G & EDGE (Internet) complete off. I decide to paste his tutorial to my blog here and share to someone who are looking for it. All tutorial credit to bhiga. Thanks for the great job. LG-Xenon info
LG Xenon Tip – Disable 3G:
1. Engineering Menu – ‘dial’ 3845#*500# or 3845#*501# (menu should pop up when you hit the last # – you do not need to press Call/Send)
2. Select Modem Setting
3. Select Network Mode
4. Select Network Mode (again)
5. Select 2G Only
You can also force the frequency band if you want, but that’s extreme and may lead to no coverage in some areas.
1. Engineering Menu – ‘dial’ 3845#*500# or 3845#*501# (menu should pop up when you hit the last # – you do not need to press Call/Send)
2. Select Modem Setting
3. Select Band Freq
4. Select a setting
We glad to tell you that LG released an update for the LG Xenon, the latest Software Version is GR500-V10o-MAY-13-2010-ATT-US. It’s about 156506 Bytes downloads then. LG-Xenon info
This software installation may take you a few minutes. The V10o software update process will not delete any personal data on your LG Xenon. All phone service (including emergency calls)will be suspended during the installation process. LG Cell Phone Software
I now have the software GR500-V10o-MAY-13, so far, no differences seen from prior version I had (1.0j). Will update if I find anything different.
LG Xenon Phone Photos – LG Cell Phone Pictures
