The LG Env2, also known by its model number VX9100, is the successor to the LG Env and the predecessor to the LG Voyager and the LG Env3. It was released on the Verizon Wireless network in March 2008. The phone's charger is a micro USB port on the bottom of the phone. The charging port is covered by a small plastic flap, but sometimes things can get inside the port to cause the phone not to charge. Removing this buildup provides a swift solution to the charging port problem.
M/F Blast the charging port with the canned air, and then look inside the port to see if the debris is out. If not, move on to the next steps.
M/F Brush out the charging port with the toothbrush. Brush gently, but with enough vigor to remove stubborn debris inside the charging port. This will remove any stuck on stuck-on particles the canned air wasn't able to remove.
M/F Plug the phone into the charger and plug the charger into the wall. If it still isn't charging, some corrosion may be occurring inside the USB charging port of the phone or in the charger itself. Sometimes, if a phone's charging port has corrosion in it, it will transfer some of the corrosion to the charger.
M/F Put just a touch of rubbing alcohol on the toothbrush and brush the port again, this time scrubbing the wall charger as well. Scrub lightly so you don't damage the wiring on the phone's main board. Wait for everything to dry, and then plug the phone back in.
M/F If these steps don't work, damaged connections on the main board of the phone may be causing the problem. If so, take the device to a qualified technician.