Replacing the screen on a Microsoft Lumia 640 and similar
But enough about my personality issues: the glass survived wonderfully, but it did have one single scratch running from the left to the right of the screen. I'm not a hipster teenager who likes perforated jeans or shattered-screen iPhones, so I ordered a new screen from Hong Kong for about €25 and replaced my screen. A short manual for the Tweaker. I had a glance at this YouTube video before I ordered, so props to Smart Easy Repair and check it out if you prefer a video version.
Don't blame me for screwing up (pun unintended) your warranty. Following these instructions is at your own risk.
I kept my original glass to be able to put it back in case I ever need to send it in.]
- A very small torx screwdriver
- A plectrum or similar small, hard plastic
- A new screen of course
First, remove the back cover and the battery. If you need instructions for this, stop reading here and contact the nearest Tweaker.
Remove the screws from the side with the torx and keep them separately as they're slightly smaller than the other ones.
Remove all the visible screws from the back with the torx. There's also one screw you can't see because there's a thin layer over it that you can remove carefully.
Now use a plastic tool to remove the frame from the rest of the phone. Be careful on the side where the connector is (cf. picture) so you don't accidentally damage it. I forgot about this and just pulled it off. Fortunately this type of connector doesn't need much to disconnect properly itself.
So here we see the phone (L), the old screen (M) and the new screen (R).
Remove the flexible cable. I just pulled it gently, although you might feel safer sliding a soft plastic tool under it.
I also removed the speaker because the new one didn't look very good.
Put everything where it belongs... this should be quite straight-forward...
... and reconnect the flexible cables. This can take between 3 seconds and 30 minutes, depending on how much feeling you have with these soft connectors
Test 1-2 1-2 Test. Looks perfectly fine. Yes, there's still a plastic foil over it.
As a last note: the biggest risk is buying a screen that is of an inferior quality. Take a good look at the sellers before you buy.