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Installing LG VX3100 Logic Board

User-Contributed Guide

User-Contributed Guide

An awesome member of our community made this guide. It is not managed by iFixit staff.

  • Author: Mark Cabaj
  • Time required: 40 mintues
  • Difficulty: Difficult

BEFORE STARTING, note that this repair guide requires soldering experience!

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Step 1 — Logic Board  ¶ 

  • Use the T7 Torx screwdriver to remove the four screws that are in the cavity where the battery was.

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Step 2  ¶ 

  • Carefully wedge the spudger around the sides of the plastic casing and pry off the back side of the phone.

  • Be careful when prying off the case. The spudger can damage the phone case.

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Step 3  ¶ 

  • Gently pry off the logic board with the spudger; notice the gold strip that connects the logic board to the rest of the phone.

  • Prying the logic board off too quickly may damage the strip.

  • Desolder the part of the gold strip that is attached to the logic board.

  • Use the spudger to carefully lift up the small latch that holds the gold strip onto the logic board.