[Question] Hasee X50 TS

[Athos]

hi, arist1976. Welcome to chinaphonearena!

Is this a new phone? If it is, you can always consider asking your phone supplier for a replacement.

Did you modify anything before the problems started?
See the ROM here [Only registered and activated users can see links Click here to register] Double check if it is compatible to your phone specs.

Battery: How long does a full charge last you? Have you verified if your phone is going into deep sleep?

Microphone on Loudspeaker:
If you are rooted, you can try installing Mobileuncle tools then adjusting the microphone sensitivity for speakerphone. However, as stated, this is only for sensitivity adjustments, but it just might help.
Go into Engineer Mode > Engineer Mode (MTK) (second option)
Swipe left until you reach Hardware Testing. Go into Audio> LoudSpeaker Mode
Tap on the Type of parameter, select Mic. Try changing the settings and see if that makes any difference.

Microphone on Video recording:
Are you using the stock camera app? Have you tried another?
Double check if the microphone is switched on for video recording settings. Just in case it is off by default.