Kindle keyboard screen gone weird after screen replacement

TomTW · 03-02-2021, 01:44 PM

Hello,
Can anyone tell me what is wrong with my kindle screen?
I dropped my kindle, the screen cracked, so I ordered a replacement and installed it at the weekend.
Since turning it on after the screen replacement I can only see my kindle menus in the top right of the screen. The bottom right is just grey and never changes and there is a bar on the left which was the display when I unboxed the replacement screen.
Has anyone come across this before?
Is the replacement screen the problem.
I tried to attach a photo to this post however I am not sure if that worked.
Many thanks in advance.
Tom

NiLuJe · 03-02-2021, 01:55 PM

Cracked substrate and/or damaged/badly seated flex cable.

TomTW · 03-02-2021, 02:33 PM

Quote:

Originally Posted by NiLuJe

Cracked substrate or damaged/badly seated flex cable.

Hi There NiLuJe,
Thanks for your speedy response. I’m not very technical when it comes to the kindle so I’m don’t completely understand your answer.
So is the substrate a layer of the screen? So the replacement screen could be damaged?
And what does the flex cable connect to? Is that the cable that goes from the screen into the board?
Many thanks
Tom

JSWolf · 03-02-2021, 03:23 PM

It's not the flex cable. It's the screen that's broken.

j.p.s · 03-02-2021, 03:36 PM

Quote:

Originally Posted by JSWolf

It's not the flex cable. It's the screen that's broken.

Prove it.

NiLuJe · 03-02-2021, 04:20 PM

Quote:

Originally Posted by TomTW

Hi There NiLuJe,
Thanks for your speedy response. I’m not very technical when it comes to the kindle so I’m don’t completely understand your answer.
So is the substrate a layer of the screen? So the replacement screen could be damaged?
And what does the flex cable connect to? Is that the cable that goes from the screen into the board?
Many thanks
Tom

That's the TFT substrate, which, yeah, is roughly one of the lowest layers of the screen, and happens to be a thin glass pane on most eInk screens.

And the flex cable I'm talking about is indeed the screen's ;o).

03-02-2021, 01:44 PM	#1
TomTW Junior Member Posts: 2 Karma: 10 Join Date: Mar 2021 Device: Kindle Keyboard	Kindle keyboard screen gone weird after screen replacement Hello, Can anyone tell me what is wrong with my kindle screen? I dropped my kindle, the screen cracked, so I ordered a replacement and installed it at the weekend. Since turning it on after the screen replacement I can only see my kindle menus in the top right of the screen. The bottom right is just grey and never changes and there is a bar on the left which was the display when I unboxed the replacement screen. Has anyone come across this before? Is the replacement screen the problem. I tried to attach a photo to this post however I am not sure if that worked. Many thanks in advance. Tom Attached Thumbnails

03-02-2021, 01:55 PM	#2
NiLuJe BLAM! Posts: 13,478 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	Cracked substrate and/or damaged/badly seated flex cable. Last edited by NiLuJe; 03-02-2021 at 04:21 PM.

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