Bluetooth poor range

[Whitewheels]

Just got my m4 back from a almost 5 month long repair. Anyway. The Bluetooth works fine with the incar stereo for sound and phone but when I conect to my peltor and bose headset it start cracking up just from a meters distance. My old budget samsung had alot of issues but I could go at least 10 -15 meters from the phone before it started cracking up.
Any ideas?

[Uliwooly]

@Whitewheels

Test your phone in >>> safe mode

and Bluetooth's limit its 10m as long as there isn't anything in between devices. 

[Whitewheels]

It says "up to 100m" on the phone. Know thats utopia but strange that my budget samsung easly got 10m with the phone inside my truckcab but can barely have it in my legpocket with this midprice model from sony. I use Bluetooth alot so it a bit of an issue for me. Inside my truck the sound is amazing through Bluetooth but thats little help when 90% time I'm using it for phonecalls.

[Whitewheels]

Will test safemode tomorrow for sure

[Uliwooly]

@Whitewheels

If the device has bluetooth class 1 then it can go up to 100m, if it's class 2 which is the most common then it's 10m and class 3 1m. 

Which device has class 1? 

[Whitewheels]

Yeah surely not this one have class 1 🙂
Were can I get info on witch class I got? Hard to think sony put a class 3 in it
Did test safe mode without any improvment 😕

[Uliwooly]

@Whitewheels

Where does it say this?

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@Whitewheels wrote:
It says "up to 100m" on the phone. 

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[Whitewheels]

The first time you pair a unit a info-window pops up on the phone with some Bluetooth info

[Uliwooly]

@Whitewheels

which unit gave you that message? and could you unpair it and pair it once more > take a screenshot and post it here?

[YoGem]

Xperia M4 has the typical 10m range so also if your accessory say up to 100m your phone has still the 10m limit, mind also that a lot depend on how many devices you have paired with it and the level of the batter charge and if there are wall, other electronic devices and the kind of wifi connettion. Dual band wifi have issue with the channels used and they do interfere with Bluetooth.