I purchased M31s 4 days ago. I noticed buzzing sound complaints of most m31s users and for my device also same problem. I checked with wired as well as wireless earphone. Anyone pls tell me that problem is on software or hardware. I have 3 days more for replacement in Amazon.
Bro i bought the mobile 2days ago my phone has that too but problem is solved if u use high impidence headphones i use 32ohm headphone and the sound is 99% gone you can try that too it might solve the problem
Listen to me bro claim refund. U have bought a wrong phone at a wrong price. M31s is the most problematic device i have seen in my life. If u care about ur money just refund it and buy any other phone except that crap_exynos 9611
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Just in case this is still relevant to you, or to others who find your post later. I got 2 replacements. So, I tried 3 new m31s units in total, and they all have the defective audio jack. Plugging in earphones with mic into the audio jack, you will hear a faint buzzing or white noise anytime the device plays a sound (easy to test when typing an SMS, or playing any media at the lowest volume - one step above mute). This buzzing or white noise becomes much louder and easy to notice while you are charging the phone. Yes, I tested this with 4 earphones with mic and 2 headphones without mic, on this phone and another phone. They all make noise on this phone only. Headphones without mic make less noise, so you can notice it only when charging as well. I'm very disappointed cause I really wanted this phone, and I like it aside from this defect. So I was really hoping that it wasn't affecting all units, but it is (at least all blue UAE version units sold on Amazon.ae, manufactured in Vietnam). And I keep hoping Samsung will come out and acknowledge it, and announce that they have fixed the issue in upcoming batches, but after calling the Samsung service center, they say that they don't even know about this issue, which has to be a lie. So I'm going to return this 3rd one for a refund and look for a different phone.
