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Follow this guide to replace the motherboard on a Blackberry Curve 8900. The motherboard is a crucial component to keep the phone functioning correctly. If the Blackberry Curve 8900 randomly powers down or unexplainably malfunctions, it might be time for a replacement. To find a replacement, it is recommended to search for the part online using the device name (Blackberry Curve 8900) and the part (motherboard). This guide requires the small iFixit opening tool, a T6 Torx Screwdriver and a gentle touch. This simple 10-step guide is beginner friendly, allowing for an easy replacement.
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Remove the back cover of the phone.
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The battery will now be visible.
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Pinch the battery at the grey semi-circles on the top left and top right corners of the battery using your fingers and remove it from the device.
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Remove the lower rear cover, using a small iFixit opening tool.
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Remove the six screws from the mid-frame of the device, using the T6 Torx Screwdriver.
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Gently remove the mid-frame from the phone, exposing the motherboard.
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This is the motherboard.
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Gently pull back the plastic tabs that secure the motherboard to the case.
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Slowly pull the tabs, working your way around the case, until they are lifted and the motherboard is free.
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Remove the motherboard.
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Carefully detach the antenna from the two clips on the side of the motherboard.
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Disconnect the antenna from the motherboard in the same manner.
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Carefully disconnect the ribbon cable located on the bottom right of the motherboard.
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Locate the chip underneath the screen.
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Gently remove the screen, without applying too much pressure, taking care not to damage it.
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Lift up the motherboard from the bottom edge to reveal the ribbon cables.
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Carefully disconnect the two ribbon cables connecting the motherboard to the display on either side.
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Remove the motherboard and place off to the side.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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