I bought this phone about 5 months ago, and from about 2 months ago, the loudspeaker has been causing me issues. The first issue was that the speaker was not working, and that was because it constantly registered my headphones as being in, even when they weren't, bit I fixed the issue by cleaning the jack. Now, the loudspeaker isn't working again, but sometimes it will be very low, and if I blow on the loudspeaker or headphone jack, the audio become louder, until I run out of breath, and then the sound goes out. If anyone has any solution to this, telling me would be greatly appreciated!