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Sony Xperia Z3 Compact released in Sep. 2014.

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Replaced screen, backlight very dull.

Just replaced the LCD assembly after smashing the original (sadface). Made sure everything is connected properly and the screen works as it should but the backlight is extremely dim (still works however).

If i try to adjust using the settings the screen reaches maximum brightness after about 20% of the slider, any slider movement above this makes no change to the bightness of the backlight.

Has anyone come across this before?

p.s. The screen was bought from a vendor on eBay claiming to sell OEM replacement parts. Compared side by side to the original screen that came out of the phone, there were next to no differences in the production quality apart from the original screen had a black paper-like cover on the back of the LCD and the replacement part had a shiny mirror like cover.

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I have the exact same problem did you manage to solve this ?

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Not solved as of yet. I'm reading about there being something on the motherboard that I need to jump. Debating whether to do this or just claim on the insurance and pay my excess.

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I highly doubt it's the logic board. It doesn't even get touched during the repair, unless you damaged the connector but I don't think that would effect the backlight in that way.

I would try a new lcd.

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Normally I would just buy another, but as they are £60+ for one from a reputable source, Ill just pay my £30 insurance excess.

The part on the logic board i was referring to was this (see pic in link):

http://dc739.4shared.com/download/BSX7Nx...

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Someone made the jump posted by friend? I have a case to solve this. I'll make the jump and put the result.

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it could be the screen, a lot of these 3rd party screens are refurbished and install low quality backlights in the refurbishing process

other solutions could be if the phone is in power saving mode or under 10% battery

could be a calibration thing, so restore phone to factory settings.

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Cheers for the input!

Tried with 100% battery and performed a full restore AND put the phone in dev mode to try and reset the back light value via command prompt on PC. None worked.

Deffo down to faulty hardware but whether its the screen or the mobo remains to be seen.

To be honest I think ill just have done with it and claim on the insurance. Using the other half's pink iPhone 5c is only a novelty for a few weeks and then starts to get boring ha!

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Sony LED Fuse exploded. Just solder it out. Use a Good Solder + Microscope.

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

Logic Board CHF 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

LED CHF 17.92 | Original 4.6 ''Für Sony Xperia Z3 compact z3 mini D5803 D5833 LCD Display Touchscreen Digitizer Montage mit rahmen ohne F

https://a.aliexpress.com/_B0hkDt

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

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help me back laiht repeir z3 compackt

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Puan 0

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Sony LED Fuse exploded. Just solder it out. Use a Good Solder + Microscope.

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

Logic Board CHF 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

LED CHF 17.92 | Original 4.6 ''Für Sony Xperia Z3 compact z3 mini D5803 D5833 LCD Display Touchscreen Digitizer Montage mit rahmen ohne F

https://a.aliexpress.com/_B0hkDt

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

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