sony e3 recording too low

[Nokun]

Does anyone like me?
My xperia E3 is record too low in all app record. I try to record my voice using app : facebook messenger, sony audio recorder and all app others. The sound is too low. Except record video ,the sound is better.
I test all sony E3 in many cellphone shops. And all is same. The recording is too too low

[Thommo]

If it's the same on all devices of the same model then there's nothing wrong with your phone

[Nokun]

@Thomas I know but........ the low record is a really serious issue. because the camera video record is normal..... but all app record is bad .Do you have E3? Does it record lowly? . I'm on 18.5.A.0.26 version firmware. Can you show me how to update firmware please. I very need the record function.  

[Nokun]

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@Thommo wrote:

If it's the same on all devices of the same model then there's nothing wrong with your phone

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thank you for answering me