BlackBerry 7290 Motherboard Replacement

Step 1 Battery




• Apply pressure to the lock button on the back of the device.
• Slide the battery cover down towards the bottom of the device, revealing the battery compartment.
Step 2




• Locate groove along the right side of the battery compartment.
• Remove battery by prying between the battery and the groove.
Step 3 SIM Card
• Slide the SIM card holder to the left to unlock the SIM card.
Step 4
• Lift the SIM card holder up.
• Gently remove the SIM card from the SIM card holder by sliding the card along the railing.
Step 5 Side Button
• Locate the four screws along the perimeter of the back casing.
• Remove the four top screws using a T-6 torx screwdriver.
• The top four screws are .413 inches.
Step 6
• Locate two screws within the lower edge of the inner compartment.
• Remove the two bottom screws using a T-6 torx screwdriver.
• The bottom two screws are .2 inches in length.
• The second picture displays the device after the six screws have been removed.
Step 7
• Use the plastic opening tool to apply pressure on the two clips that are located at the bottom of the phone.
Step 8
• Remove the back casing from the phone by lifting the unhooked portion, then slide the casing towards the top of the device.
• Make sure all clips holding the case together are unhooked, so no damage is caused to the case.
Step 9
• Locate on the backside of the phone, a screw towards the top of the device.
• Using a T-6 screwdriver, remove the screw.
• After the screw has been removed, carefully lift the side button brace to reveal the side button.
Step 10 Keypad
• To remove the phone's internals, start by loosening one side by pulling gently.
Step 11
• With one side loosened, simply lift the phone internals to separate from the front casing.
Step 12
• Turn the internals over to reveal the LCD display.
Step 13
• Peel off the rubber keypad buttons from the face plate.
Step 14 LCD
• Locate a hook on the right side of the internals below the volume wheel.
• Use a plastic opening tool to gently pry the hook, separating the LCD display from the logic board mounting plate.
Step 15
• With the clip unhooked, gently separate the display from the phone internals by pulling.
Step 16 Logic Board
• On the front side of the internals, locate the the three screws that are highlighted in red.
• Carefully remove screws from the internals, using a T6 torx screwdriver
• The screw is .2 inches in length.
Step 17
• Separate the logic board mounting plate from the logic board by lifting with minimal force.

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kmathew

Member since: 10/17/09

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Team

Cal Poly, Team 19-6, Maness Fall 2009 Member of Cal Poly, Team 19-6, Maness Fall 2009

CPSU-MANESS-F09S19G6

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