Monday, October 31, 2016

Apple MacBook Pro 13 Retina Display – How to replace the Trackpad – Laptop repair and service

Category: Laptop Repair and Service 

Contents of this article 

  • How to remove the case 
  • How to remove the battery 
  • How to remove the Trackpad 

Apple MacBook Pro 13

Remove the following ten screws securing the lower case to the upper case:
Two 2.3 mm Pentalobe screws
Eight 3.0 mm Pentalobe screws
Wedge your fingers between th upper case and the lower case.
Gently pull the lower case away from the upper case to remove it.
The lower case is connected to the upper case with two plastic clips near its center.
During reassembly, gently push down the center of the lower case to reattach the two plastic clips.
If necessary, remove the plastic cover adhered to the battery contact board.
Use the flat end of a spudger to lift the battery connector straight up out of its socket on the logic board.
Be sure you lift up only on the connector itself, not the socket, or you risk permanent damage to the logic board.
Bend the battery connector up out of the way to prevent accidental contact with its socket during your repair.
Remove the two 2.1 mm T5 Torx screws securing the logic board end of the I/O board cable bracket.
Grasp the I/O board cable bracket with a pair of tweezers and remove it from the MacBook.
Use the flat end of a spudger to pop the I/O board connector straight up off its socket on the logic board.
Be careful to only pry up on the I/O board cable, not on the socket itself or you risk damaging your logic board.
Lift the logic board end of the I/O board cable straight up to bend it out of the way.
To avoid damage to the cable, fold only at the bend in the I/O board end of the cable.
Carefully tuck the tip of a spudger under the right speaker cable near the connector and lift it up out of its socket on the logic board.
Carefully peel the right speaker cable off the upper case.
Remove the following screws securing the right speaker to the upper case:
One 5.7 mm T5 Torx screw
One 6.5 mm T5 Torx screw
One 3.8 mm T5 Torx screw
Lift the right speaker from the cable end and pull it free from the case.
Remove the five 3.7 mm T5 Torx screws securing the battery to the upper case.
Slightly warm up the battery with a hot air gun.
Push a plastic card between the right-most battery cell and the upper case, cutting the adhesive between the two.

Use the plastic card to pry the right-most battery cell up from the rear case.
Repeat this procedure with the next battery cell in.
Push the card about an inch between the battery cell and the upper case, and slowly pry the cell up to separate all of the adhesive.
Position the plastic card to keep the two right-most battery cells from re-adhering to the upper case.
Reheat , this time to the left-most battery cells.
Again, leave it in each position for about a minute, reheating in between, to heat each half of the left-most battery cells.
Insert a second plastic opening tool between the far left battery cell and the upper case, cutting adhesive about an inch deep.
Gently pry the left-most battery cell up from the upper case.

Continue to repeat the procedure from the right side of the battery.
Insert the plastic card between the second left-most battery cell and the upper case to cut the adhesive joining the two, and pry the cell up from the case.
Leave the second card in the corner between the two left cells.
In the following steps, you can either use a third card, or the card from the right corner. The right corner adhesive should be cooled enough that it won't resettle.
Insert the card about an inch between the left-center battery cell and the upper case, separating the adhesive between the cell and the case.
Pull the card back out and insert it about an inch between the right-center battery cell and the upper case, separating the adhesive between the cell and case.
By this point, the outer cells should be free, and you should only encounter resistance from the two center cells. If this is not the case, go back and completely loosen the four outer-most cells from the upper case.
Pry up on the two center cells to separate the last of the adhesive and remove the battery from the device.
Slightly warm up the trackpad
Use a plastic opening tool to carefully pry the trackpad cover plate up from the upper case.
Go slowly and carefully to avoid putting any visible creases in the plate.
Use a plastic opening tool to slowly and carefully peel the trackpad cover plate up off the upper case.
Gently peel the plate up to remove it.
If necessary, peel back any tape covering the trackpad cable connector.
Use the tip of a spudger to flip the retaining tab on the ZIF connector.
Pull the trackpad ribbon cable straight out of its socket on the logic board.
Wedge the flat end of a spudger underneath the upper case opening where the trackpad ribbon cable passes is routed through.
Gently pry the trackpad ribbon cable from the adhesive securing it to the upper case.
Remove the following screws securing the trackpad brackets to the trackpad and upper case.
Four 2.2 mm T5 Torx screws
Four 1.7 mm T5 Torx screws
Use tweezers to remove the two trackpad mounting brackets from the upper case.
To avoid scratching the display, open the computer about 90ยบ and set it on end.
Carefully guide the trackpad ribbon cable through the slot cut in the upper case.
This will push the trackpad up out of its recess in the top of the upper case.
Guide the trackpad out of the upper casewith your other hand, so it doesn't fall.
Gently pull the trackpad away from the upper case, being careful not to snag the ribbon cable.

LG G Stylo – Disassembling procedure – How to replace the mother board – How to replace the front glass – Mobiles and smartphones Repair and Service

Category: Mobiles and Smartphones Repair and Service

Contents of this article 

  • How to remove the case 
  • How to remove the mother board
  • How to replace the front glass

LG G Stylo

DISASSEMBLING PROCEDURE 
Make sure that you power off the phone before beginning.
Remove the back cover by placing the plastic opening tool on the bottom left side of the device and gently prying up.
There is a small slit that fits the plastic opening tool perfectly on the left side.
Insert the plastic opening tool into the indent at the bottom of the battery and lift up. Fully remove the battery with your fingers.
Carefully use the Phillips #00 screwdriver to remove the eleven 3.9mm visible screws found on the back. The screws to be removed are marked with the given indicators.
When you have finished removing all of the screws, place the plastic opening tool in the groove at the bottom left corner of the motherboard cover and lift up.
This part could be more difficult if you have never removed the motherboard cover. If difficulty arises, pry the plastic opening tool into each groove along the edge of the motherboard cover until it releases.
Once a clip is released, you can detach the motherboard cover with your fingers and set aside.
Carefully place the plastic opening tool under the ribbons where the cables are connecting and lift up to detach the cables.
Keep in mind to be careful with the ribbons, because they are small components and important for the device's functionality.
The third photo attached depicts what the ribbons look like when they are successfully detached.
Fully remove the motherboard by prying upward with the plastic opening tool.
This step will be quite simple if all the ribbons have been detached correctly.
Use the plastic opening tool to peel off the sticker.
Gently use the plastic opening tool to set the tab free. This tab is used to hold the screen in place.
The screen is held with adhesive, so use the iOpener to apply heat to the device.
Once you applied the Opener on the device, use the plastic opening tool or opening pick to pry the screen free.
When working with electronics, it's important to use ESD-safe tools to avoid accidental damage to the device. The regular black nylon spudger or a plastic opening tool should be used whenever possible. Also, beware of sharp edges on a broken screen. Once the broken screen has been set free, put in the screen replacement.

Lenovo Yoga Book – How to check the AC adapter – How to check the Battery – How to replace the battery – How to disassemble the keyboard – Tablets repair and service

Category: Tablets Repair and Service 

Contents of this article

  • How to check the AC adapter
  • How to remove the key board 
  • How to replace the battery  

Lenovo Yoga Book

Checking the Tab AC Charger
To check the IdeaTab AC Charger, do the following:
1. Disconnect the micro
USB cable from the tablet.
2. Measure the output voltage across the connector marked B of the micro
USB cable. Refer to the following figure:
Note: The output voltage across pin 3 of the microB connector might be different from the one you are servicing.
3. If the voltage is not correct, replace the microUSB cable.
4. If the voltage is acceptable, replace the main board.
Checking the internal battery status
To check the battery status of the tablet, do either of the following:
Approximate information about the battery status
Get the approximate status of the battery at any time by checking the battery status icon on the system bar in the upper
right corner of the screen. The shorter the green bar is, the less the battery power remains.
Accurate information about the battery status
To get the accurate information about the battery status of the tablet, do the following
1.Open the Android Settings screen.
To open the Android Settings screen, do either of the following:
# From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android Settings screen is displayed.
# Touch the application icon from the action bar and then touch Settings.
The Android Settings screen is displayed.
2.Touch About Tablet on the Android Settings screen.
3.Touch Status to view the accurate percentage of the remaining battery power. You also can touch Battery use to check what applications are consuming battery power.
KeyBoard DisassemblingHeat the 5mm adhesive surface to 6070°C all the way around for about ten minutes.
Place suction cups in the position shown in the photo and slowly lift up the secondary display TP. Once there is a gap, insert the piece for disassembly to 5mm. Do this on all four sides to open it up, and then lift up the secondary display.
Remove the black Mylar. Use tweezers to disconnect the KeyBoard assembly and the main board connected to the FPC interface. Gently pull the FPC, so the main board and the KeyBoard assembly are completely separated.
Note:
1. The power key’s FPC can be easily broken in disassembly.
2. When open, the right side of the motor and the EMR are bonded together. Be careful not to break the motor’s lead wire.
3. The KeyBoard assembly’s FPC connector is located on the top left side. Remember that slow disassembly is required so as not to damage the FPC.
How to replace the Battery
Use a screwdriver to remove the black screws from the battery’s silver sheeting, then remove the sheeting.
Use tweezers to open the interface between the battery FPC and the main board.
Use a blade to pry open the black cover on either side of the battery, and remove the covers.
After the covers are completely separated, you will see four pieces of blue adhesive. Pull out the four pieces of adhesive, and gently remove the battery.