Today I’m replacing a failed screen on a Lenovo Ideapad Flex 5-1470 2-in-1 laptop (model 81C9). It is not easy to open up the display panel on this model. If you are a new to laptop disassembly, probably you should seek professional help.
This laptop was dropped and the screen backlight stopped working. I hope replacing the screen will fix this issue. I don’t have another screen for testing so I’m just guessing.
This is my second disassembly guide for a Lenovo Ideapad Flex 5-1470 2-in-1 laptop. In the first guide I explained how to take apart the laptop base which is a simpler procedure.
Start the disassembly process with removing hinge covers on both sides of the display assembly. Using a thin case opener tool pry up the hinge cover. There are hidden latches securing the cover to the display back cover.
Remove the left hinge cover.
Remove the right hinge cover.
Pry up the cover located between the display hinges.
Continue removing the cover with your fingers. Wiggle the cover to release heading latches underneath.
Remove four screws securing the bottom side of the touchscreen assembly.
Here’s the tricky part: The touchscreen is glued to the display back cover with two adhesive strips. You will not be able to separate the touchscreen from the back cover until the adhesive is completely removed.
You can see two ends of the adhesive strips on the bottom of the display assembly. I pointed to them with two yellow arrows.
Here’s a closer look at the adhesive strip on the left side.
Grab the end of the adhesive tape with tweezers and pull it out.
Start winding the adhesive tape onto a screwdriver. Pull the tape very slowly. It’s a relatively strong adhesive tape and you can feel how it slides between the screen and back cover. You must remove all the tape from under the screen.
If the tape breaks (like it did in my case) then it will be very difficult to catch the loose end from under the screen and continue removing the tape.
Remove the tape from the other side of the display.
Alternatively, you can pull the tape out with your fingers. It’s not reusable anyway.
After all the adhesive tape removed completely you can easily separate the touchscreen assembly from the display cover.
Lift up the lower side of the touchscreen and slide it to the shown direction about 1/4 of an inch until the top side disengages from the back cover.
If the screen doesn’t separate easily, most likely you still have some adhesive tape left underneath.
Now start separating the touchscreen from the back cover on the uppers side of the display assembly.
Continue separating the touchscreen.
Flit the touchscreen 180 degrees.
Take a look at the back cover. Two red lines show how the adhesive tape is routed under the screen.
The LCD screen is permanently attached to the front glass bezel. The entire touchscreen assembly (LCD screen and glass bezel) has to be removed and replaced as one unit. You cannot separate the LCD screen from the glass bezel.
Take a closer look how all the cables are routed. Memorize it or take detailed pictures. You will have to route all the cables exactly the same way on the new touchscreen assembly.
Separate two Wi-Fi antennas (two yellow arrows) and the web camera board (red arrow) from the the bezel. They are glued by adhesive tape.
Un-route all cables from the guided paths on the left and right sides of the bezel.
Disconnect the display cable (green) from the LCD screen.
Disconnect three more cables (orange and blue) from the digitizer board.
Here’s how to disconnect the display cable. Peel off clear tape securing the connection and pull the cable out.
Two connectors on the digitizer board must be unlocked first (red arrows). Only after that you can pull the cables out (yellow arrows).
Separate the digitizer board and all the cables from the lower side of the touchscreen assembly.
With all boards and cables removed, you can replace the touchscreen and re-assemble it back together. You’ll have to use some double sided adhesive tape to secure the new touchscreen to the back cover. I wouldn’t recommend using too much adhesive just in case if the display panel has to be disassembled again in the future.