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HTC Windows Phone 8S Logic Board Replacement

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How to disassemble the phone and remove the logic / main board.


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  1. HTC Windows Phone 8S Logic Board Replacement, Loudspeaker: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement, Loudspeaker: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement, Loudspeaker: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Switch off the phone.

    • Remove the SIM / memory card cover.

    • Remove any SIM and memory cards.

    • Use screwdriver torx T5 and unscrew the two screws at the bottom of the battery / back cover.

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  2. HTC Windows Phone 8S Logic Board Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement: crwdns2935265:02crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement: crwdns2935265:02crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Use a plastic tool and slowly separate the back cover.

    • The loudspeaker is inside on the back cover.

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  3. HTC Windows Phone 8S Logic Board Replacement, Battery: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement, Battery: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement, Battery: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Use a Phillips #0 screwdriver and remove the 4x silver screws.

    • With a plastic tool carefully separate the battery from the logic board.

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  5. HTC Windows Phone 8S Logic Board Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement: crwdns2935265:04crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement: crwdns2935265:04crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • The battery connector is under the middle frame. Remove it and disconnect the battery.

    • Model: BM59100 / 3,8VDC / 1700mAh

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  6. HTC Windows Phone 8S Logic Board Replacement, Flex Cables: crwdns2935265:05crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement, Flex Cables: crwdns2935265:05crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement, Flex Cables: crwdns2935265:05crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Remove the USB dock connector metal plate.

    • Open flex cable connectors:

    • LCD display flex cable

    • Menu buttons flex cable

    • Volume buttons flex cable

    • Touch screen flex cable

    • Power button flex cable

    • Pick up the vibrating motor and take out all flex cables except the LCD display flex cable.

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  7. HTC Windows Phone 8S Logic Board Replacement, Logic Board Removal: crwdns2935265:06crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement, Logic Board Removal: crwdns2935265:06crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement, Logic Board Removal: crwdns2935265:06crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • The logic board is secured to the display frame by two locking clips.

    • Use a plastic tool to release it.

    • Now remove the LCD display flex cable from its connector.

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  8. HTC Windows Phone 8S Logic Board Replacement, Logic Board / Main Board: crwdns2935265:07crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HTC Windows Phone 8S Logic Board Replacement, Logic Board / Main Board: crwdns2935265:07crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • HTC Windows Phone 8S Logic Board.

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

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