Wednesday, August 31, 2016

Apple iPhone 4 – How to replace the Wi-Fi Antenna – Mobiles and Smartphones repair and service

Category: Mobiles and Smartphones Repair and Service 

Contents of this article 

  • How to remove the case 
  • How to identify the screws
  • How to remove the wifi antenna 

Apple iPhone 4

WIFI ANTENNA REPLACEMENT PROCEDURE 
Before disassembling your iPhone, be sure it is powered off.
Your iPhone 4 rear cover may have either two #000 Phillips screws or Apple's 5-Point "Pentalobe" screws. Check which screws you have, and ensure you also have the correct screwdriver in order to remove them.
Remove the two 3.6 mm Pentalobe or Phillips #000 screws next to the dock connector.
During reassembly, we recommend you replace the 5-point screws with equivalent Phillips screws. The 5-Point Screwdriver should only be used once, as it has the potential to strip the screws.
Push the rear panel toward the top edge of the iPhone.
The panel will move about 2 mm.
Pinch the rear panel with your fingers and lift it away from the iPhone. Alternatively, use a Small Suction Cup .
Be careful not to damage the plastic clips attached to the rear panel.
If you are installing a new rear panel, be sure to remove the plastic protective sticker from the inside of the camera lens and the sticker from the large black area near the lens.
Remove the following five screws securing the wi-fi antenna to the logic board:
One 2.3 mm Phillips
Two 1.6 mm Phillips
One 1.4 mm Phillips
One 4.8 mm Phillips
When re-assembling, start off with replacing the 4.8 mm Philips screw first, then the 2.3 mm. This is to ensure there is no mix-up, and avoid rendering the LCD and digitizer useless.
Also make sure to put the long 4.8 mm Philips back in correctly when reassembling. This is the ground for the wi-fi antenna and is often the culprit if you are having bad wi-fi reception after reassembly.
Use an iPod opening tool to slightly lift the top edge of the wi-fi antenna away from the logic board.
Use the tip of a spudger to pull the wi-fi retaining clips away from the inner frame.
Remove the wi-fi antenna from the iPhone. Make sure you don't lose the metal clips on the top of the cover where the 4.8mm screw attaches or the 4.8mm screw. That's the primary reason for abnormal Wi-Fi performance after the reassembly.
Before reassembly, be sure to clean all metal-to-metal contact points on the connector cover with a de-greaser such as Windex. The oils on your fingers have the potential to cause wireless interference issues. Do not clean the connectors themselves with Windex.


HTC Maple 100 - Disassembling procedure – How to replace the front panel – Mobiles and smartphones repair and service

Category: Mobiles and Smartphones Repair and Service 

Contents of this article 

  • How to remove the battery 
  • How to remove the Key board 
  • How to remove the frond panel 

HTC Maple 100 

DISASSEMBLING PROCEDURE 
How to remove Battery
First remove the back cover of your phone to expose the battery.
Turn the phone over and remove the battery by using your thumb to push forward on the battery and then lift it.
Take the battery out
When reassembling, make sure that the battery contacts match up.
How to remove Back Panel
Remove the four 4.9mm T6 Torx screws that secure the back panel to the rest of the phone
Remove the two 4.3mm #00 Phillips screws that secure the back panel to the rest of the phone
Use the plastic opening tool to pry the clips off
Insert the plastic opening tool along the seams at different points to it pry up
This may require a bit of force. The USB port cover may fall off in this step.
Remove the one 3.3mm #00 screw.
Use your finger or the plastic opening tool to unclip the board.
Be aware of the ribbon cable connected to the motherboard inside the phone.
Peel off the yellow piece of tape from the phone
First flip up the retaining flap with your fingernail or a plastic opening tool.
Pull on the ribbon cable gently with your fingers
Split apart the motherboard and front panel. Remove the other yellow piece of tape off of the end of the ribbon cable.
Gently pull on the ribbon cable to separate the motherboard.
Remove the four 1.9mm #00 Phillips screws.
How to remove Keyboard
Peel back the tape gently with your fingers
Remove the board gently with your fingers
Remove the keys
Using the Plastic Opening Tool, pry out the LCD screen and remove with fingers.
Be gentle because the LCD screen is fragile.
Use the Plastic Opening Tool to remove the internal ear speaker.

Friday, August 26, 2016

Samsung Galaxy Grand Prime How to replace USB Port – 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 middle frame
  • How to remove the USB port

Samsung Galaxy Grand Prime

USB PORT REPLACEMENT PROCEDURE
Remove the back cover of phone by lifting up on the back cover tab with the blue plastic opening tool.
Go around the edge of the back cover to completely remove it.
Remove the old battery by lifting up on the thumb tab.
  
Remove the nine 4mm screws screws from the midframe with a PH000 screw driver
Wedge the blue plastic opening tool in between the front and side panel.
Move the blue plastic opening tool around the edges between the front and side panel.
 Make sure that you detach the mid-frame from the inside too.
Unhook the ribbon cable clip with the plastic opening tool and remove the audio jack.
Use the plastic opening tool to unhook the ribbon cable clip.
 Gently pull on the connector with the tweezers until the speaker comes off.
Unhook the other ribbon cable clip to the screen with the blue plastic opening tool
Unhook the ribbon cable clip to the front camera.
Lift the motherboard up and out of the device.
Remove the motherboard and unhook the ribbon cable clip to the back camera
Using a soldering iron to solder off the charging port.
Be careful soldering iron gets extremely hot.

Wednesday, August 03, 2016

Kindle Fire HD 8.9 – How to replace the battery – Tablets Repair and Service

Category: Tablets Repair and Service 

Contents of this article 

  • How to remove the case 
  • How to remove the middle frame 
  • How to remove the battery 

Kindle Fire HD 8.9

BATTERY REPLACEMENT PROCEDURE 
Remove the SIM card tray (if present in your model).
Insert a large plastic opening tool next to the Kindle's headphone jack.
Make sure the notch on the plastic opening tool is facing the back of the Kindle.
Move the plastic opening tool evenly around the Kindle, separating the two halves.
Be careful not to completely separate the rear cover. There are two delicate flex cables that connect the display assembly to the motherboard.
Set the Kindle down on the rearcase.
Holding the display assembly near the camera, carefully open the display assembly up to about 90 degrees from the rear case.These images show the Kindle laying flat. In order to prevent damage to the flex cables, keep the Kindle open at 90 degrees while disconnecting the display assembly.
Lift the retaining flap on the ZIF connector of the upper flex cable.
Gently pull the cable out of its socket.
This flex cable is delicate. Be careful not to crease or bend it while working.
Lift the retaining flap on the ZIF connector of the lower flex cable.
Gently pull the flex cable from its socket.
This flex cable is delicate. Be careful not to crease or bend it while working.
Separate the display assembly from the rest of the device.
When reassembling the device, align the two halves of the case before connecting the flex cables.
Remove the following sixteen screws from the metal midframe on the rear of the device:
One 3 mm Phillips screw from each corner
Four 3 mm Phillips screws surrounding the camera
Eight 3 mm Phillips screws from the body of the midframe
Carefully remove the metal midframe.
For easier handling, position the Kindle as shown.
Lift up on the silver ends of the black flex cable that lays across the battery.
Gently pull the black flex cable from the battery.
Disconnect the orange button cable from its socket on the motherboard.
Don't remove the button from the device. It is adhered to the case and may tear during removal.
Starting at the outside edge of the battery, use the flat edge of a spudger to separate the battery from the rear of the device.
Work carefully. Excessive force on battery may cause it to bend, break, or crack.
Move the spudger along each side of the battery, prying upwards with even pressure.
As the adhesive releases, push the spudger further underneath the battery.
Once half of the battery is detached, pry the other half in the same manner.
Remove the battery assembly from the Kindle.