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The motherboard is where all the logic and commands take place in a phone. Every electronic component of the phone is connected to the motherboard and receives commands from the motherboard based on what the user selects. Disassembling the motherboard is necessary to replace some parts that are directly connected to the motherboard and are located behind the motherboard assembly.

Turn the phone over so that you are facing the back side of the phone.
  • Turn the phone over so that you are facing the back side of the phone.

  • With your fingers, pry the back cover up starting from the top of the phone near the headphone jack and camera.

  • Completely remove the back cover by moving down the sides and bottom with your fingers.

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With your finger, remove the battery from the phone by gently lifting the top-right corner nearest to the camera.
  • With your finger, remove the battery from the phone by gently lifting the top-right corner nearest to the camera.

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  • Remove the twelve exposed 3.6 mm Phillips screws on the rear of the phone using the 3.6 mm Phillips screwdriver.

    • Store all the screws in a safe place where you will not lose them.

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  • Remove the three circular rubber screw covers on the back of the phone by slipping the spudger into the border between the rubber cover and the chassis. In one motion, pry the stopper out of the hole. This can take some force.

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  • With the 3.6 mm Phillips screwdriver, remove the three newly exposed 3.6mm Phillips screws.

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  • Insert the plastic opening tool underneath the chassis near the power button and pry the chassis from the phone. This should take a little force.

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  • Use the sharp end of the spudger to pry the power button bracket from the side of the rear case.

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  • Rotate the phone onto its side so that the power button falls out with ease.

    • Make sure not to lose the power button.

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  • Use the sharp end of the spudger to pry the volume button bracket from the side of the rear case.

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  • Rotate the phone onto its side so that the volume button falls out with ease.

    • Make sure not to lose the volume button.

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  • The motherboard is split into two different chips. The large chip is located above where the battery rests and the smaller chip is located below it.

  • Remove the three 3.6 mm Phillip's screws on the motherboard.

    • A small silver piece of metal is connected to the lowest screw and may fall off. This metal holds the WiFi antenna in place and should not be lost; although the phone operates just fine without it.

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  • Using the flat end of the spudger, pry the four tape connectors straight up out of their respective motherboard sockets.

On the Australian Model X9076 the tape connector near the SD card slot is not present.

Instead it appears that connector has been moved to the under side of the board just under and to the right of the SIM slot.

When disconnecting the motherboard further down, use the flat spudger to pop this connector.

Stephen Coles - Yanıt

  • This connection is a little bit more tricky to remove. Follow these directions carefully to avoid damaging the device.

    • On the right side, there are two motherboard connections hidden underneath the motherboard. For these, insert the spudger in between the motherboard and the connection and rotate the spudger in a rocking motion until the two cables are disconnected from the motherboard.

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  • Like the last step, this connection is tricky to remove. Please pay close attention to the guide to avoid damaging your device.

    • On the bottom right only one connection is visible, however an additional connection is hidden underneath the first. To safely disconnect both, first unplug the visible connection then lift its tape up to expose the second socket. Similarly disconnect the second tape.

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  • With your fingers, gently pull upwards on the WiFi antenna near the connection on the smaller motherboard until the antenna is no longer connected to the bottom motherboard.

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  • Use the spudger to carefully pry the small motherboard off of the phone.

    • Start from the sides of the lower motherboard closest to the charging port. Carefully pry the motherboard off until it is no longer connected to the phone.

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  • Use the spudger to carefully pry the bigger motherboard off of the phone.

    • Start from the top of the large motherboard. Carefully pry the motherboard off until it is no longer connected to the phone.

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Sonuç

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

6 başka kişi bu kılavuzu tamamladı.

Carlos Montes

Üyelik tarihi: 21-10-2014

140 İtibar

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Takım

Cal Poly, Team 4-45, Amido Fall 2014 Cal Poly, Team 4-45, Amido Fall 2014 üyesi

CPSU-AMIDO-F14S4G45

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10 adet Kılavuz yazıldı

6 Yorum

I bought a kit lcd + touch + frame to replace because I broke my.

But they lack the two connecting cables of motherboards, those of the step 13 and 14. How can I remove them from the broken frame and insert them into the new one?

davidinglese - Yanıt

davidinglese did you come up with a solution? or anyone else know how to get those connectors out of the tunnel?

Asim Mehta - Yanıt

I had to disassemble the touch from the display to remove the old cable and insert it into the new kit

davidinglese -

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evanslee578 - Yanıt

Hello, I have replaced the display of a Find 7 (not 7a) and now have a phenomenon. The smartphone does not charge the battery. The software shows, the battery is being charged. Also, the charging LED works. I can transfer data via the USB port. So everything works fine - only the battery didn't charged. Of course, I have already tested various charging cables and batteries. Likewise, I changed the USB board. Unfortunately again and again the same problem. The smartphone does not charge the battery.

Greetings and sorry for my bad English

Mike Tamm LEHMANN - Yanıt

Hi Mike, i had the same problem with the charger too. You must be hit the Charging IC component when you replaced the display. Changing the charger usb is not the sollution, try to replace the IC Charger. The problem will solve by changing the IC Charger.

Regards.

Judynth Himura -

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