Wednesday, November 09, 2016

LG Vu CU920 – Disassembling procedure – How to replace the LCD Screen – Mobiles and Smartphones repair and Service

Category: Mobiles and Smartphones Repair and Service 

Contents of this article 

  • How to  remove the Case 
  • How to remove the Ribbon cables
  • How to remove the Mother board 

LG Vu CU920

Remove the back cover by firmly pressing against the indent on the back panel. Slide the cover downward and off the phone.
Remove the battery by placing your fingernail or an opening tool at the bottom edge of the battery and lift it out.
Remove the two 3.5mm screws above the battery port with a Philips #00 screwdriver.
Pull out the antenna to reveal a third screw.
Remove the 3.5mm screw with Philips #00 screwdriver.
Locate the plastic tab next to the charging port and use a plastic opening tool to gently pop it out.
Use the plastic opening tool to pry up the edges of the plastic casing. You should be able to slide it around the edge to dislodge it.
Remove the plastic covering to reveal the motherboard.
Locate these six components on the motherboard. They must be detached before the motherboard can be removed.
Gently lift the ZIF connector (black tab) holding the ribbon cable in place. When it is in the upright position, the cable can be removed from the back side.
Remove the connector attached to the red and blue wires by carefully pulling it upward from the motherboard.
Remove the round connector connected to the black cable by carefully prying it up from beneath with a spudger or plastic opening tool.
The remaining three ribbon cables can be removed by gently lifting them by the ends opposite the cables with a plastic opening tool or spudger until they pop out.
To remove the motherboard, gently pry it up with your finger from the charging port.
Be careful not to yank the camera's ribbon cable as you lift the board. Make sure that it is in line with its hole in the motherboard.
Once the board has been lifted, remove it by pulling it away from the connected edge.
Remove the 3.5mm screw holding the antenna guide in place with a Philips #00 screwdriver.
Slide the antenna out to the edge, and remove the plastic tubing by gently pulling it out from the opposite end of the antenna.
This step can be done after the motherboard is removed, or before.
Use a plastic opening tool to carefully pry up the metal antenna guide.
Using a Philips #00 screwdriver, remove the two 3.5mm screws on the bottom corners of the device.
Remove the single 3.5mm screw located at the top next to the speaker's ribbon cable.
Insert a plastic opening tool below the volume rocker and gently pry the silver casing up. As with the plastic casing over the motherboard, you should be able to slide the plastic opening tool along the edge to remove it.
After separating the front casing from the mid frame, begin prying the screen out.
The screen is attached to the midframe with a small piece of adhesive.
Use a plastic opening tool to completely remove the screen.