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The Mi 9 is a mid-range smartphone by Xiaomi which was released in February 2019. Featuring a 6.39" super AMOLED display, a main camera with 48 MP plus an ultrawide 16MP and a 12MP telephoto lens, an under-display fingerprint reader and a 3300 mAh battery with fast wireless charging.

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Turns greenish tint/yellow on low brightness water damage

Hi,so apparently my Mi 9 has a amoled screen…5 days before this happens,my phone got water damage and can't even turn on…after 3 days my phone starts working but no image/light appears to the screen even the screen is responsive to the touch

But now…it's became normal but there's a problem if I put on the low brightness…the BLACK and GREY color looks greenish/yellowish….If I turn off my phone…lcd looks like it didn't shut off the light…my amoled panel still looks like it is power on

Can this problem can be solved with cleaning the corrosion by ISO Alcohol?

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Hi @thatzlyfe ,

You’ve got nothing to lose by cleaning it using Isopropyl Alcohol 90%+ as it will not get better by itself.

Do not use “rubbing alcohol” as it is usually <70% IPA, can contain scents and is generally not as effective as purer IPA. If you have to use the rubbing alcohol check the label to verify the amount of IPA

It is better that you don’t try charging it or turning it on anymore and that you disconnect / remove the battery as soon as possible to limit any further damage caused by the corrosive effect of the impurities in the water, electricity and the electronic components combining. Unfortunately the Power button on a phone is not a power isolating button and there is always power available at various points on the systemboard

Here’s a link to the ifixit Mi 9 repair guides which may help. Also remember to unplug any flex cable connections on the systemboard and clean the ends of the cable and the connectors with IPA as well.

Here’s a link that may also help.

Electronics Water Damage.

If all this seems too daunting contact a reputable, professional mobile phone repair service, experienced in liquid damage repair and ask for a quote. The better ones who will try to fix it will have better equipment e.g. ultrasonic bath etc than the regular repairers or DIY’s.

If you decide to get it fixed or try to fix it yourself, do it sooner than later

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Clean on which parts?


@thatzlyfe all of them. you will have to disassemble your phone and clean all the components as outlined by @jayeff


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