Saturday, April 30, 2016

LG Optimus G Pro – Disassembling procedure – How to remove the case – How to remove the battery – Mobiles and Smartphones repair and service

Category: Mobiles and Laptops Repair and Service 

Contents of this article 

  • How to remove the case 
  • How to remove the battery
  • How to remove the Mother board 

LG Optimus G Pro

Once you have access to the phone, there is a small indent on the bottom left side. Use your fingernail or a plastic opening tool to pry from here and pull off the back casing.
Once you have properly removed the outer casing, the back should look as so. To remove the battery, pull up from the red mark using your finger. The battery should come up at an angle, and easily be able to be removed. Once the battery is removed you may safely proceed to the next step.
Make sure you remove the battery first. You will see that there are 14 screws on the back of the inner case. Use the Phillips head screwdriver to remove each of the screws, make sure to put the screws in a safe place where they will not get lost.
Once you have removed all the screws, you can begin removing the inside cover. Insert the opening tool using a sliding motion into one of the corners and move it along the edges of the inside cover. This will loosen the edges and the inside cover will pry apart from the shell.
The inner cover is now removed, you now have access to the many parts on the inside of the phone.
Using a plastic opening tool, pry the connection between the cable and the phone. With even pressure the cable should disconnect from the logic board easily.
After removing the the Ribbon Cable, the Rear-Facing Camera should be able to be removed easily with your fingers.
Using your plastic opening tool, disconnect the connection between the phone and the ribbon cable. Make sure to use even pressure as you apply it to the cable.
In this next step it is easy to pry the wrong piece. Make sure to pry at the metal platform that the sister board sits on, not the orange printed circuit board itself. Using your prying tool, pry at the right red marked corner, making sure to pull at the metal platform under the circuit board. Once it is raised slightly, pull along the underside until the left red mark. This should loosen the board and allow it to be removed. If it's still unable to be removed, try to pry at the orange mark, making sure to pull at the same metal platform.
You can now raise and remove the sisterboard with your plastic opening tool or your fingers.
Use the plastic opening tool to disconnect the 4 ribbon cable connections and the antenna attached to the logic board.
The logic board is connected to the under side of the phone with a bit of adhesive. Using a spudger, place it under the logic board from the top right corner and gently slide it toward the center orange mark where the adhesive is. Apply a little bit of pressure parallel to the logic board and the Logic board should loosen from the phone.

Kindle Fire HD 6 – Disassembling procedure – How to replace the Mother board – Tablets repair and service

Category: Tablets Repair and Service 

Contents of this article 

  • How to remove the back panel
  • How to remove the camera, speakers and battery
  • How to remove the Motherboard

Kindle Fire HD 6

DISASSEMBLING PROCEDURE 
Place the device face down on a clean cloth or another smooth surface. In the following steps, you will need to apply some force to your device. If your device is on a rough surface, you may scratch the screen. Insert the plastic opening tool between the device’s front and back panels. You might need to wiggle the tool up and down to wedge it in the gap. Maneuver the tool around the device until the back unclips from the front panel. Carefully separate the back panel from the rest of the device internals.
Unscrew the two 3.5mm T5 Torx Screws from the top of the camera.
Be careful not to damage the camera lens as you remove the camera. Gently pull the camera up and out of the device. As you pull, unclip the black and white connector with orange tape by popping it off at its base.
Unscrew the two 3.5mm T5 Torx screws at the base of the speaker.
Unclip the wire connected to the battery that runs up the side of the battery and clips into the motherboard by gently pulling it straight up.
Lift the speaker out of the device.
Using the flat side of the spudger, gently pry the battery off the adhesive. Be careful not to yank the battery you'll need to disconnect a connector before removing the battery completely. Remove the multi-colored connector that joins the battery and the motherboard by pulling it straight up. Lift the battery out of the device.
Use the tip of the spudger to disconnect the two zero insertion force connectors on the bottom and top of the motherboard.
The first connector is attached to an orange tape, and is located in the bottom-right corner of the motherboard. Remove this connector.
The second connector is long and thin, and is located at the top of the motherboard, a bit to the right of center. Remove this connector.
Disconnect the black and white connector at the very top-center of the motherboard by unclipping it using the flat side of the spudger.
Unscrew the ten 3.5mm T5 Torx screws around the edge of the motherboard.
Starting from the bottom, lift the motherboard out of the device. You will have to push the motherboard about two millimeters toward the top of the device to unhook the top edge.

LG Optimus 3D Max – Disassembling procedure – How to remove the case – How to Remove the boards – How to replace the LCD – Mobiles and Smartphones repair and service

Category: Laptop Repair and Service 

Contents of this article 

  • How to remove the case 
  • How to remove the board 
  • How to replace the LCD

LG Optimus 3D Max 

Tools required : Small philips/crosstip screwdriver
Tiny slotted screwdriver (to tear things apart)
Guitar pick (also to open things and tear them apart)
Remove the 3 screws on the bottom plate and the 8 screws on the upper part, all marked in red.
With the tiny screwdriver go under the bottom plate. Lift the plate and remove it.
Loosen up the frame. Remove it carefully with your hand.
We got to the SIM and SD card board and the motherboard. Start to unpin the relevant cables and pins marked in red.
Remove the SIM and SD card board. You removed the pin next to the SD card tray already and you can see the glue on the board on this picture. Also remove the (whole!) pin between the cameras, circled in red. Remove the pin shown at the bottom of the picture. Remove the board carefully.
Once you have removed the board, it should look like this.
Let's remove the motherboard now. Although already pointed out earlier on, the red marked pins are the ones you need to unpin before carefully removing the board. There are four pins marked on the top of the board and three in the lower part. Once you removed them, remove the board.
This is how the board should look, once it is succesfully removed.
Let's continue work at the lower part of the phone. Three things you need to loose or unpin: the sticker that kept the microUSB board in place, the second pin of the cable and the gold foil circled in red.
Now it is a little tricky to tell apart the flex cable that comes from the LCD and needs to be removed and the necessary flex cables that need to be left in place. I tried to mark the gold foil under the two board parts. Where you removed the first bit of gold foil should now be two connectors visible.
Use the guitar pick to detach the glass housing from the housing of the LCD screen. Be careful, you have to detach a lot of pins. Have a close look at the picture before you proceed.
You cannot fully detach the glass because the relevant flex cable has a pin that won't fit through the opening at the top of the phone. Open it carefully like shown in the picture.
This looks a little wild but actually isn't. The LCD sits tight in it's housing. Take the slotted screwdriver to lift it out of it's housing. The LCD is already broken. Anyway, let's stay careful. Because of the flex cable of the LCD it is not yet possible to remove it. Take a sharp small knife or a razor blade to cut those flex cables close to the LCD. Start where the upper red arrow starts and work your way down to the second arrow. Now you can remove the LCD. On the other side you can now identify the old flex cables that you just cut loose. You will have to remove those as well. Take a look at the next steps.
Remember the gold foil I pointed out in step 10? Go to the right and see where I marked the arrow. Start to pull off the gold foil under the cable and don't tear it apart. Go slow! Remove the foil. You will see there is also a light blue foil as shown in the second picture. It's attached to the gold foil. Leave it attached! Once you detached the gold/blue foil, remove the flex cable that lies beneath the black foil that covers the battery compartment. In the first picture I marked red lines show where the flex cable lies. You have to tear it and it won't glue again. Once you removed the flex cable it looks a little bit like a scorpion there :)
Insert the new LCD. Work the flex cable through the designated openings. It's a little messy in the picture, but you will work out how to do it properly.
You worked the flex cable through it's designated opening? Then take the kept gold/blue foil and attach it to the new LCD flex cable like it was attached on the old one. The picture shows how it should like now. You have to fix the cable that goes through the battery compartment. Use duct tape, or, if not available do it like I did: use normal tape. Now you are done. I hope you took notes of how you disassembled the phone. You need to reassemble it now!
If you worked carefully, followed all the steps and reassembled the phone without mistakes, then it should like this ;) Hope I could help you guys! If there is a question, let me know!

Lenovo E40–80 – Keyboard Disassembling procedure – How to test the Battery pack – How to check the AC adapter – Laptop repair and service

Category: Laptop Repair and Service 

Contents of this article 

  • How to test the AC adapter 
  • How to test the battery pack 
  • How to disassemble the keyboard 

Lenovo E4080

Power system checkout
To verify if a battery pack or an ac power adapter is functional, do the following:
1. Turn off the computer.
2. Connect the ac power adapter.
3. Turn on the computer. If the computer can be turned on, it means that either the battery pack or the ac power adapter is functional.
4. Insert a straightened paper clip into the Lenovo button to reset the computer. If the computer is still powered on, it means that the ac power adapter is functional.
5. Turn off the computer.
6. Disconnect the ac power adapter and turn on the computer. If the computer can be turned on, it means that the battery pack is functional.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
“Checking the ac power adapter”
“Checking the external battery pack and the operational charging”
Checking the ac power adapter
You are here because the computer fails only when the ac power adapter is used.
If the power problem occurs only when the docking station or the port replicator is used, replace the docking station or the port replicator.
If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.
To check the ac power adapter, do the following:
1. Unplug the ac power adapter cable from the computer.
2. Measure the output voltage at the plug of the ac power adapter cable. See the following illustration.
Note: Output voltage of pin 2 of the ac power adapter might differ from the one you are servicing.
3. If the voltage is not correct, replace the ac power adapter.
4. If the voltage is acceptable, replace the system board.
Note: Noise from the ac power adapter does not always indicate a defect.
Checking the external battery pack and the operational charging
Checking the external battery pack
To check for detailed battery status information, do the following:
7: Open the Power Manager program and click the Battery tab.
8 and Windows 8.1: Open the Lenovo Settings program and click Power.
Note: If the external battery pack becomes hot, it may not be able to charge. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.
Checking the operational charging
To check whether the battery pack charges properly during operation, do the following:
1. Discharge the battery pack until the remained battery power is less than 50%.
2. Connect the computer to ac power to charge the battery pack. If the battery status icon in the Windows notification area indicates that the battery pack is not charging, remove the battery pack and let it return to room temperature.
3. Reinstall the battery pack. If the battery pack is still not charging, replace the battery pack.
4. Check the battery status icon again. If the same error still exists, replace the system board.
How to disassemble the Keyboard
Remove two screws 1.
Lift the keyboard a little by its upper edge with a flat blade 2, and then slide the keyboard frame forward in
the direction shown by arrow 3.
Lift the keyboard a little 4, and then detach the connector in the direction shown by arrows 5 6.

HP EliteBook Revolve 810 G3 – Disassembling procedure – How to remove the battery – How to remove SSD – How to remove NFC board – How to remove keyboard – laptop repair and service

Category: Laptop Repair and Service 

Contents of this article 

  • How to remove the Battery 
  • How to remove NFC board 
  • How to remove SSD

HP EliteBook Revolve 810 G3

DISASSEMBLING PROCEDURE 
How to remove Battery
Before disassembling the computer, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
Remove the battery:
1. Turn the computer upside down with the rear toward you.
2. Slide the battery release latch (1) to release the battery.
3. Pivot the battery up and back and then remove the battery (2).
How to remove Service cover
Before removing the service cover, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery
Remove the service cover:
1. Press on the memory card bezel (1) once to release the bezel, and then press on the bezel again to remove the bezel.
2. Remove the two large rubber screw covers (2).
3. Remove the two small rubber screw covers (3).
The large and small rubber screw covers are included in the Plastics/Rubber Kit, spare part number 716744-001.
4. Remove the two Phillips PM2.0×8.5 screws (4) that secure the service cover to the computer.
5. Loosen the four captive Phillips screws (1) on the front edge of the service cover.
6. Loosen the two captive Phillips screws (2) on the rear edge of the service cover.
7. Lift the front edge of the service cover (3) until the cover detaches from the computer, and then remove the service cover (4) from the computer.
How to remove WWAN module
Before removing the WWAN module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery
5. Remove the service cover
Remove the WWAN module:
1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
2. Remove the Phillips PM2.0×3.0 screw (2) that secures the WWAN module to the computer. (The WWAN module tilts up.)
3. Remove the WWAN module (3) by pulling the module away from the slot at an angle
How to remove Solid-state drive
Before removing the solid-state drive, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery
5. Remove the service cover
Remove the solid-state drive:
1. Remove the Phillips PM2.0×3.0 screw (1) that secures the solid-state drive to the computer. (The solid state drive tilts up.)
2. Remove the solid-state drive (2) by pulling the drive away from the slot at an angle.
How to remove NFC board
Before removing the NFC board, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see Battery on page 29).
5. Remove the service cover (see Service cover on page 30).
Remove the NFC board:
1. Release the zero insertion force (ZIF) connector (1) to which the NFC board cable is attached, and then disconnect the NFC board cable from the NFC board (2).
2. Remove the Phillips M1.5×2.0 screw (3) that secures the NFC board to the bottom cover.
3. Detach the NFC board (4) from the bottom cover. (The NFC board is attached to the bottom cover with double-sided tape.)
How to remove Keyboard
Before removing the keyboard, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see Battery on page 29).
5. Remove the service cover (see Service cover on page 30).
Remove the keyboard:
1. Loosen the 2 captive screws that secure the keyboard to the computer.
2. Partially open the computer.
3. Rest and secure the computer on its left side.
4. Insert a keyboard release tool or similar thin, plastic tool into the keyboard release hole near the fan, and then press on the back of the keyboard until the keyboard disengages from the computer.
5. Turn the computer right-side up with the front toward you.
6. Lift the rear edge of the keyboard, and then swing the keyboard up and forward until it rests upside down on the palm rest.
7. Release the ZIF connector (1) to which the backlight cable is attached, and then disconnect the backlight cable (2) from the system board.
8. Release the ZIF connector (3) to which the keyboard cable is attached, and then disconnect the keyboard cable (4) from the system board.
9. Remove the keyboard (5).