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2014年9月に発売されたSony Xperia Z3 Compactの修理ガイドです。

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No backlight after screen replacement z3 xperia compact

I changed the screen because it cracked. When I first tried the screen it was fine and it worked. Then after a while the backlight didn't work. The screen works and I can barely see things on the screen, but backlight is not working.

I read there is a fuse that helps fix this issue but I don't know if this will help. Here it is: http://www.mobilerdx.com/2015/03/sony-xp...

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It's the first time the phone is opened and I never thouched the fuse because it's underneath a metallic plate, which I didn't even touch or moved. So why would I have to do something with the fuse if I never did anything to it and the screen was working when I tested it?? It just stopped working afterwards for some unknown reason.

The phone is on, because there is the blinking light. So, do you have some suggestions??? Should I actually try to add a jumper on the fuse??

Thanks.

EDIT: I remember that when I was about to close the phone I put the screen upside down, and it was when the screen backlight stopped working. Is this some reason why the fuse could have been damaged???

Thanks

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i have the same problem. After I replace the screen of my phone. The brightness become so dim. I tested na light sensor but it is working.

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Hello all! I have same problem but trick with jumper not done result. I find problem in this chip J5cx http://prntscr.com/99khme but I can't find it for buying. I replace this chip from another xperia z2 and now its work.

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Do you have more details with this replacement?

Where ist this chip located? Do you have other Fotos?

How do you remove and resolder it on place?

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Hi, I had the same problem and took the risk of making the jumper. I used a conducting glue instead of soldering the thing because it is so tiny, I do not own the tools for it.

It worked fine using this glue, my screen is as bright as it should be!

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O have the same problem. After I replace the screen of my phone. The brightness become so dim. I tested na light sensor but it is working.

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Sony's TFT LCD IPS Fuse exploded on Logic Board. Just solder it out. Use a Good Solder + Microscope.

Compact Z3: https://youtu.be/B3GHVfFs2hU?t=263

Logic BoardCHF 23.04 | 32GB Original Motherboard Für Sony Xperia Z3 MINI D5803 D5833 100％ Entsperrt Mainboard Android OS Logic board Mit Chips ersetzen

https://a.aliexpress.com/_BUGwJ5

TFT LCD IPSCHF 17.92 | Original 4.6 ''Für Sony Xperia Z3 compact z3 mini D5803 D5833 LCD Display Touchscreen Digitizer Montage mit rahmen ohne Frame

https://a.aliexpress.com/_B0hkDt

Normal Big Z3: https://youtu.be/ZUm7n0tCZVM?t=45

5803 = EU + USA

5833 = Australia + Asia

https://www.quora.com/What-is-the-differ...

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Hey Mel.. Did you fix it? I have the same problem

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I got someone to fix it for me. I didn't do it because you need the tools and I didn't have them. But where the picture shows is where you need to solder. The guy that did it soldered a very thin metal cable in that spot. So yes, it should work. It's how I got mine fixed. But you definitely need tools for soldering such a small part. It's not easy. I tried it and couldn't do it. So I had someone do it for me.

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Hi there. I've replaced the screen of my z3 compact. I think have connected the lcd screen properly, in fact it turns on, but the touch screen is not working. Can you help me to get why and fix it?

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Did u solve it? Ihave same problem

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Hi,

please see this answer: Replaced Screen But Blank Display

I hope this helps!

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Hi all,

got a similar problem. The backlight of my Sony Xperia Z isn't working after I replaced the backcover only, I haven't touched anything but the backcover and two screws that fell out, as I opened the phone's back. Anyone think it's still the fuse or got any other idea?

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Mel Dominguez さん、ありがとうございました！
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