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2017年4月に発売されたSamsungの大型版フラグシップモデルGalaxy S8+です。

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Fast charging not working properly

Hi!

A week ago, I received my galaxy s8+ as a pre-order. The phone worked properly, until it didn't charge fast anymore... everytime I plug in my charging cable (the same cable and adapter that came with the phone) a pop-up appears saying that it can only charge slow and I had to be sure that the charger was plugged in properly. I then tried cleaning the port with a thin plastic stick. This worked for about an hour, whereafter it stopped working. Until now, it still takes 6 hours for a full charge..

Does anyone know how I can clean the port properly, without damaging it?

Thanks in advance!!

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I'd take it back for warranty. Sounds faulty to me.

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@benjamen50

Thanks for your reply!

I Will bring it back.. however, I did root my phone. Is it possible that i can unroot the phone and then bring it back for warranty?

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I don't know about that though because it will say knox warranty void 0x1 in the download mode on screen which technically means warranty voided so you can only try.

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Sometimes if you buy refurbished device, these problems are normal.

Fast charging can get damaged when the device is opened and repaired.

https://www.bestphonerepair.com.au/galax...

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It could even be the root (as it uses different kernel) stopping fast charging from working if it happened right after rooting it.

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Have you tried checking settings to see if fast charge is enabled?

Sounds stupid but i found that to happen once or twice on mine.

also you could purchase a USB voltage detector online which are a few quid,

and see the voltage going in to the phone?

Hope this helps.

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I had the same symptoms and warning messages. Fix was simple - dust/fluff had got into the charging port. A quick squirt with a can of compressed air, and everything was back to normal.

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nabil さん、ありがとうございました!
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