How to Troubleshoot a Sprint Rumor Phone With a Blank White Screen

The LG Rumor comes equipped with a ton of features to allow you to stay connected while on the move, but it also comes with one major design flaw, the flex cable between the LCD and the control board. After being in use for a while, the cable becomes crimped and stops transmitting a usable signal to the LCD, causing the screen to go white. LG recognized the problem and provided reinforced replacement cables, which are designed not to crimp in the same way as the original cables did.

• 1

  Turn the Rumor over, and push up on the battery latch to remove the battery. Pull out the SD card cover on the side of the Rumor, and push in on the SD card to remove it.

• 2

  Remove the four screws the were covered by the battery and the two screws at the top two corners of the Rumor. The top two screws may be covered with rubber stoppers that you can pull out.

• 3

  Place your pry stick underneath the back housing, and twist the stick to pop it up. Remove the back housing from the device.

• 4

  Remove two screws that are holding the control board in place. The first is located near the camera button on the side of the phone, the other is located just below the speaker.

• 5

  Place your pry stick under the control board, and pull it up to free the board. As you pull the board up, find the connector underneath the board, and use your pry stick to pop it loose, then remove the control board from the housing.

• 6

  Pull the soft plastic keyboard away from the housing.

• 7

  Remove the three small screws that hold the housing to the hinge mechanism. There are four screw holes and only three screws, since one of the holes is used for a screw on the control board, so make a note of which holes the three small screws come from. Pull the hinge housing away from the LCD housing once you remove the screws.

• 8

  Remove the six screws from around the outside of the LCD housing. You will have to slide the hinge mechanism down to access the sixth screw. Just remember to slide it back up once you are done. Place your pry stick between the two halves of the LCD, and pop the back piece off.

• 9

  Remove the defective flex cable, and replace it with your new cable.

• 10

  Reverse the disassembly instructions to get the Rumor back together again. Ensure that the cable is threaded through the slots in the LCD housing and the hinge housing. When you put the control board back into the rear housing, hold it at an angle first so that you can connect the cable to the control board.