Difficulty

Moderate

Steps

5

Time Required

                          10 minutes            

Sections

2

  • Back Cover / Rear Case
  • 3 steps
  • Logic board
  • 2 steps

Flags

1

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Introduction

RM-1090 / RM-1091/ RM-1089 / RM-1092

How to disassemble and replace the Logic board.

What you need

Video Overview

Step 1

              Back Cover / Rear Case               
  • Turn off the phone.
  • Remove the battery and any SIM and memory cards.

Turn off the phone.

Remove the battery and any SIM and memory cards.

1024

Step 2

  • With a screwdriver Torx T4 remove the 9x screws.

With a screwdriver Torx T4 remove the 9x screws.

Step 3

  • With a plastic opening tool separate the back cover from the middle frame.

With a plastic opening tool separate the back cover from the middle frame.

Step 4

              Logic board               
  • Disconnect:
  • Touch screen flex cable
  • LCD Display flex cable
  • Charging Dock board flex cable - remove the foam and tape, then flip up the black lock before easing out the flex.
  • Coaxial antena cable - take your time here, be sure to pull the metal connector and not the cable or you risk pulling the cable from the connector.
  • Remove the 2x Torx T4 screws.

Disconnect:

Touch screen flex cable

LCD Display flex cable

Charging Dock board flex cable - remove the foam and tape, then flip up the black lock before easing out the flex.

Coaxial antena cable - take your time here, be sure to pull the metal connector and not the cable or you risk pulling the cable from the connector.

Remove the 2x Torx T4 screws.

Step 5

  • Insert wisdom here.

Insert wisdom here.

To reassemble your device, follow these instructions in reverse order.

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                    ZFix                     

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Abinash Pal - Sep 2, 2016

Reply

How can I add additional sensors- the gyroscope & compass chips on this logic board?

Sunitha Kunapareddi - Feb 9, 2018

Reply

microsoft lumia 535 chargeing ic complete

my Microsoft lumia 535 chargeing ic complient main mother board lo problem

aribasoyeifeoluwa - Jan 26, 2019

Reply

My microsoft mobile 1090 is not displaying apps but on backlight

Please what can I do to it?