How to disassemble Lenovo laptop - Lenovo 100S Chromebook – How to removal the LCD – How to remove the Battery – Laptop repair and service

Category: Laptop Repair and Service 

Contents of this article 

• How to check the AC adapter 
• How to remove the battery 
• LCD display removal 

Lenovo 100S Chromebook 

Checking the ac power adapter
If the computer fails only when the ac power adapter is used, refer to the information in this topic to check the ac power adapter.
If the power-on indicator does not turn on, check the power cord of the ac power 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 across the plug of the ac power adapter cable. The correct voltages are shown in the following table

Note: The output voltage across pin 2 might differ from the voltage that you measure.
3. Depending on the voltage that you measure, do one of the following:
If the voltage is not correct, replace the ac power adapter.
If the voltage is acceptable, do the following:
a. Replace the system board.
b. If the problem persists, call the Customer Support Center.
Note: Noise from the ac power adapter does not always indicate a defect.

DISASSEMBLING PROCEDURE 

Remove the upper case and the battery
Step 1. Remove the ten screws 1

Step 2. Turn over the Chromebook and open the LCD cover.

Step 3. Use a pry bar to slide through the grooves between the upper case and the base cover 2, and then slowly lift the upper case until the keyboard socket appears 3.

Step 4. Detach the battery connector 4.

Note: The Chromebook will be powered on automatically when LCD cover is open. Therefore, please make sure that the battery connector is detached from the system board before doing the following operations.

Step 5. Detach the touchpad cable 5.
Step 6. Open the keyboard socket 6, pull out the keyboard cable 7, and then remove the upper case in the direction shown by arrow 8.

Step 7. Remove the three screws 9 and then remove the battery pack in the direction shown by arrow 10.

Remove the LCD bezel

Step 1. Insert a pry bar between one inner side of the LCD bezel and the LCD panel and then carefully pull the LCD bezel outwards. Repeat this action along the inner edges of the LCD bezel until all hooks that secure the LCD bezel are detached.
Step 2. Remove the LCD bezel 1

Lenovo tablets Disassembling - Lenovo MIIX 3 – Step by step disassembling procedure – How to test the AC adapter - How to remove the battery – How to remove the LCD cover – Tablet repair and service

Contents of this article 

• How to test the Adapter
• How to remove the Battery 
• How to remove the LCD cover 

Lenovo MIIX 3

Power checkout

To verify a symptom, follow the steps below:
1. Turn off the computer.
2. Connect the AC adapter.
3. Make sure that power is supplied when you turn on the computer.
4. Turn off the computer.
5. Disconnect the AC adapter.
6. Make sure that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
“Checking the AC adapter”
“Checking operational charging”
Checking the AC adapter
You are here because the computer fails only when the AC adapter is used.
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 adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the following figure:

Note: Output voltage for the AC adapter pin No. 2 may differ from the one you are servicing.

3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
 Replace the system board.
Note: Noise from the AC adapter does not always indicate a defect.
Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator still does not light on, replace the system board. Then reinstall the battery pack.

DISASSEMBLING PORCEDURE 

LCD cover
Firstly, the suction cup to stick under the camera's position, use your hand pull the suction cup. Then insert prying tool  between the logo "Lenovo" and the camera, slide it around.
Secondly, move suction cup to the right corner, insert prying tool, push hard against the top right corner of the panel module, make the upper of right LCD cover and panel module complete separation. Prying tool transfer to the right between LCD cover and panel module sliding, make LCD cover and panel module separation.
Thirdly, move suction cup to the left corner, insert prying tool, push hard against the top left corner of the panel module, make the upper of left LCD cover and panel module complete separation. Prying tool transfer to the left between LCD cover and panel module sliding, make LCD cover and panel module separation.
Finally, use hand hold the panel module, rise up the LCD cover.
Suction cup specs: Diameter 30~60 mm, TPE material, transparent.
Prying tool: A thin plastic plate, like a guitar pick.
Note: Be careful when separating the LCD cover. Do not force apart the LCD cover, otherwise the panel module could be damaged. Use caution when internal plastic

Battery pack

Disconnect the battery connector in the direction shown by arrow 1, then remove the screws 2. Release the antenna cable and microphone cable from the cable guides in the direction shown by arrows 3.

Remove the battery pack in the direction shown by arrow 4.

System board

Detach the two connectors in the directions shown by arrows 1 and 2, then remove the screws 3.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

How to disassemble HP tablets - HP Pro x2 612 G1 – Step by step disassembling procedure – Battery removal – How to replace the backup battery – Tablet repair and service

Category: Laptop repair and Service 

Contents of this article 

• How to remove the back cover
• how to remove the battery 
• SSD Removal 

HP Pro x2 612 G1

DISASSEMBLING PROCEDURE 

How to remove Back cover

Before disassembling the tablet, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet

Remove the back cover:

1. Turn the tablet upside down with the bottom edge toward you.
2. Separate the adhesive cover strip (1) from the bottom edge of the tablet.
3. Remove the four Phillips PM1x4 screws (2).

4. Lift the back cover (3) slightly.

5. Use a case utility tool (1) to separate the top edge of the back cover (2) from the display panel assembly.

6. Separate the left (3) and right sides of the back cover from the display panel assembly.

7. Separate the bottom edge (4) of the back cover from the display panel assembly.

8. Lift the bottom edge of the back cover (1), and then swing it up and to the left until it rests next to the tablet.

9. Release the zero insertion force (ZIF) connector (2) to which the button board cable is attached, and then disconnect the button board cable from the system board.
10. Release the ZIF connector (3) to which the fingerprint reader board cable is attached (if present), and then disconnect the fingerprint reader board cable from the system board.

11. Remove the back cover (4).

How to remove Fingerprint reader board

Before removing the fingerprint reader board, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover
Remove the fingerprint reader board:
1. Remove the Philllips PM1.8×2.4 screw (1) that secures the fingerprint reader board and bracket to the back cover.
2. Slide the fingerprint reader board bracket away from the front edge of the back cover, and then remove the bracket (2).

3. Remove the fingerprint reader board (3).

How to remove Button board

Before removing the button board, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover
Remove the button board:
1. Remove the two Philllips PM1.5×2.4 screws (1) that secure the button board to the back cover.

2. Remove the button board (2).

How to remove Tablet battery

Before removing the tablet battery, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover

Remove the tablet battery:
1. Disconnect the tablet battery cable from the tablet system board.

2. Release the ZIF connector (1) to which the tablet I/O board cable is attached, and then disconnect the tablet I/O board cable from the system board.

3. Remove the five Philllips PM2.4×4.6 screws (2) that secure the tablet battery to the display panel assembly.
4. Remove the tablet battery (3).

How to remove Solid-state drive

Before removing the solid-state drive, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover
5. Disconnect the tablet battery cable from the system board

Remove the solid-state drive:
1. Remove the Phillips PM1.9×2.5 screw (1) that secures the solid-state drive to the system board. (The solid-state drive tilts up.)
2. Remove the solid-state drive (2).

How to remove RTC battery

Before removing the RTC battery, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover (see Back cover on page 39).
5. Disconnect the tablet battery cable from the system board (see Tablet battery on page 44).
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
2. Detach the RTC battery (2) from the system board. (The RTC battery is attached to the system board with double-sided adhesive.)

3. Remove the RTC battery.

How to disassemble Lenovo Tablet - Lenovo TAB S8-50 – Adapter test procedure – How to test the battery status - Tablet repair and service

Category: Tablet Repair and Service 

Contents of this article 

• How to test the adapter 
• How to replace the battery 
• How to remove the mother board 

Lenovo TAB S8-50 

To verify a symptom, follow the steps below:
1. Turn off the computer.
2. Remove the battery pack.
3. Connect the AC adapter.
4. Make sure that power is supplied when you turn on the computer.
5. Turn off the computer.
6. Disconnect the AC adapter and install the charged battery pack.
7. Make sure that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
“Checking the AC Charger”
“Checking the internal battery status”
Checking the AC Charger
When you use the AC Charger to charge the tablet but no power is charged, see the instructions in this topic to check the AC Charger.
To check the 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 micro-B connector might be different from the one you are servicing.

3. If the voltage is not correct, replace the micro-USB cable.
4. If the voltage is acceptable, replace the system 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.

DISASSEMBLING PROCEDURE

Rear cover
Insert a guitar pick and slide along to release the rear cover in the direction of arrow.

Remove the rear cover.

Screws

Remove eight screws by using a Philips screwdriver.

Insert a guitar pick to disconnect the battery connector 1 and LCM connector 2, and unplug them.

Remove the battery pack from its socket.

Mainboard

Unplug the TP FPC 1 , LCM FPC 2 , USB FPC  3 , key FPC  4 , and the rear camera connector 5 .

Unplug the coaxial cable connectors 1

Remove the mainboard.

HP laptop disassembling – HP EliteBook Folio 1040 G1 – Step by step disassembling procedure – How to remove the battery – How to remove the base – Laptop repair and service

Category: Laptop Repair and Service 

Contents of this article 

• How to remove the battery
• How to remove the Bottom cover
• Display disassembling 

HP EliteBook Folio 1040 G1

DISASSEMBLING PROCEDURE 

How to remove Display assembly components

Before removing the display panel, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
Remove the display assembly components:
1. Position the computer upright, with the front toward you.
2. Open the computer as far as possible.
3. If it is necessary to replace the display bezel:
a. Close the computer, position it so you can access the bottom of the display, and then open the computer slightly.

b. From the rear of the computer, press through the slightly open computer to disengage the bottom of the bezel (1).

c. Open the computer.

d. Use a tool to disengage the bottom of the bezel from the display (2), and then remove the bezel from the display (2).

e. Flex the inside edges of the top edge (3), the left and right sides (4), and the bottom edge (5) of the display bezel until the bezel disengages from the display enclosure. The display bezel is available using spare part number 739568-001 on models with a webcam and 748015-001 on models without a webcam.

4. If it is necessary to replace the webcam/microphone module:

a. Detach the webcam/microphone module (1) from the display enclosure. (The webcam/ microphone module is attached to the display enclosure with adhesive.)
b. Disconnect the cable (2) from the webcam/microphone module. The webcam module is available using spare part number 739570-001. The microphone module is available using spare part number 739571-001

5. If it is necessary to replace the display panel:

a. Remove the four Phillips PM2.0×2.0 screws that secure the display panel to the display enclosure.
# 739582-001 — 35.6-cm (14.0-in), LED, AntiGlare display panel, UWVA
# 739581-001 — 35.6-cm (14.0-in), LED, AntiGlare display panel, SVA HD+

b. Rotate the top of the display panel downward (1) onto the keyboard.

c. Lift the tape that secure the display cable connector on the panel (2), and then disconnect the cable from the connector (3).

How to remove Bottom cover

Before removing the bottom 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 bottom cover:
1. Remove the five inner Torx T8M2.0×5.0 screws (1) and the six outer Torx T8M2.0×5.0 screws (2) that secure the bottom cover to the computer.

2. Pry up on the top (near the display hinge) of the bottom cover to disengage it from the computer

How to remove Display assembly

Before removing the display assembly, 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. Bottom cover
5. Remove the battery
Remove the display assembly:
1. Open the computer and position it with the base enclosure on a table and the display hanging down.

2. Disconnect the WWAN antennas cables from the WWAN module and remove the cables from the routing path (1) from the system board.
3. Disconnect the display panel cable (2) from the system board.
4. Remove the six Phillips PM2.5×4.0 screws (3) that secure the display assembly to the computer.

5. Remove the computer from the display assembly (4).

6. If you need to remove the display bezel, webcam/microphone module, or raw display panel.

7. If it is necessary to replace the display hinges:
Display hinges are available in the Display Hinge Kit, spare part number 739572-001.
a. Remove the four broadhead Phillips PM2.5×3.0 screws (1) that secure each display hinge to the
display enclosure.

b. Lift the display hinges off the display enclosure (2).

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.
4. Remove the bottom cover
Remove the battery:
1. Disconnect the battery cable from the system board (1).
2. Remove the five Phillips PM2.0×4.0 screws (2) that secure the battery to the computer.

3. Lift the battery out of the computer.