HP Envy Pro - HP Envy 4 – Disassembling procedure – How to remove the case – How to remove the Keyboard – How to remove Display – How to remove the RTC battery – How to replace the battery pack

HP Envy Pro -  HP Envy 4:  disassembling procedure 

How to remove Display panel

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.
Remove the display panel:
1. Turn the computer right-side up, with the rear toward you.
2. Open the computer.
3. Remove the 2 screw covers (1) on the left and right side base of the display panel.

4. Remove the 2 Phillips PM 2.5x3 screws (2) on the left and right hinges that secure the display panel to the computer.

5. Loosen the edges of the plastic bezel cover (3) from all four sides of the display panel.
6. Lift the display bezel cover (4), and then remove the cover (5).

7. Remove the 4 Phillips PM 2x2 display panel screws (2 on the top and 2 on the bottom).

8. Disconnect the display panel cable (1), and then move the panel towards the keyboard (2)

9. Release the support strip (1) that secures the display panel connector. Disconnect the display panel cable from the display panel (2), and then remove the panel (3).

How to remove Base enclosure

Before disassembling the computer, 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 display panel

Remove the base enclosure:
1. Turn the computer face down, remove the 12 Phillips PM 7.5 millimeter long screws.

2. Remove the bottom enclosure.

How to remove Battery

Before removing the battery, 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 display panel
5. Remove the base enclosure
Remove the battery:
1. Turn the computer right-side up, with the front toward you.
2. Disconnect the battery cable.

3. Move the battery cable to the side (1), and then remove the 3 Phillips PM 2.5×4.2 screws (2) that secure the battery to the top cover.

4. Remove the battery from the computer (3).

How to remove Hard drive

Before removing the hard drive or SSD, 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 display panel
5. Remove the base enclosure
6. Disconnect the battery cable
Remove the hard drive:
1. Disconnect the hard drive cable from the system board (1), and then remove the 4 screws (2) securing the hard drive to the top cover.

2. Remove the hard drive (3).

How to remove RTC battery

Before removing the RTC battery, 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 display panel
5. Remove the base enclosure
6. Disconnect the battery cable
Remove the RTC battery:
1. Disconnect the RTC battery cable from the system board (1). Use a thin, non-conductive tool to remove the RTC battery from the socket on the system board.
2. Gently hold down the media card reader board (2), and remove the RTC battery (3).

How to remove Keyboard

Before removing the keyboard, 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 display panel
5. Remove the base enclosure

Remove the keyboard:
1. Turn the computer right-side up with the front facing you.
2. Remove the 16 Phillips PM 2x3 screws.

3. Remove the single screw (1), and then release the keyboard and keyboard bracket from the top cover (2).

4. Remove the 1 Phillips PM 2.5x3 screw securing the keyboard to the bracket (1), disconnect the keyboard cable (2) (pushing it through the bracket), and then remove the keyboard from the bracket (3).

Apple Macbook Pro – How to replace the memory of apple MacBook Pro – How to remove the memory card – How to insert the memory card

Apple Macbook Pro:  MEMORY REPLACEMENT PROCEDURE 

Tools Required
This procedure requires the following tools:
 #0 Phillips screwdriver (magnetized)
Clean non-marring work surface
ESD wrist strap and mat

Part Location

Procedure
Warning: If the computer has been recently operating, allow it to cool down before performing this procedure.
1. Place the computer upside down.
2. Remove four screws from the memory door.

3. Remove the door, as shown.

Notes:
If only one memory card is installed, the factory installs it in the bottom memory slot.
Memory must be removed from the top slot before removing from the bottom slot.

4. To remove memory cards, carefully spread the two locking tabs for the slot (top or bottom) away from the card on both sides and allow the card to pop up slightly.

5. Pull the card straight back and out of the memory slot. Handle the memory card by the edges only, taking care not to touch the gold contacts.

Replacement Procedure

Notes:
DDR memory cards do not fit in this slot, only DDR2 (different notch location).
If installing two cards, install into the bottom slot first.
Align the notch in the memory card with the tooth in the slot before inserting.
1. To install memory cards, insert them at a 30-degree angle. Note: Insert the bottom card behind the locking tabs of the top slot.

2. Firmly push the card straight into the slot until it is fully and securely seated along its length.

Note: If the back of the card drops down before it is fully seated, raise it up enough to push it fully into the slot.
3. When the card is fully seated, push the card straight down until the tabs click onto both sides of the card, locking it into place.

4. Verify that the card is fully seated by pushing firmly with your thumbs.

5. Check that the cards are secured by the brackets on both sides.

6. Install the memory door.
7. Replace the battery.
8. Use Apple System Profiler to verify that the memory is recognized. (Choose the menu bar Apple logo > About This Mac, click More Info..., select the System Profile tab, open the Memory Overview.)