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?