Weak Wi-Fi signal after Android 6.0.1 update

[LongDiepVN]

In new version of Android 6.0.1 on Xperia Z2 (D6503 Customized NCB_1282-0508), the wifi signal of phone is very very weakly, it very badly on the smartphone. I suggest sony fix it as quickly.

[Uliwooly]

@LongDiepVN

Test it in >>> safe mode

Also Settings > about phone > diagnostics > test > test WiFi

If you think that there's something wrong with your phone, you can contact your Local support to get it inspected, don't forget to test other routers.

[Blade10X]

Hey LongDiepVN! Solution to poor wifi signal could be...

Go to settings, about phone, look for 'built number' of your android. Tap on it seven times. That will enable Developer Options. You will see this menu when you go back in settings. Enter in this menu and scroll down to find option that says - Use old DHCP Client of Lolipop. Turn on that, by default it's disabled because of marshmallow. Now your phone will use an older method of DHCP client for for connection. This should be resolved then.

[LongDiepVN]

Thank you,

When I test in Safe Mode, result is Test Complete: Passed.

But the same problem.

I test on 3 wifi router in 3 different places. And result is the same, weakly signal wifi. It only level 2 although distance between Z2 with router is 2 - 3 meters. The same, when I use version 5.1.1, signal wifi is very good (max level).

[LongDiepVN]

Hello Blade10X,

Thanks for your interested for my post.

However, the signal wifi still weakly.

I think that it only change method of DHCP client. And, it not impact to signal of wifi. Maybe, new release be able to fix it.

[LongDiepVN]

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@malakhi wrote:
Marshmallow firmware for z2 is beta version. I have same problem like u. it will fix on final release

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My Z2 is using formal release. Build: 23.5.A.0.570_R8D

[Uliwooly]

@malakhi

That's not accurate, please don't spread rumors

[_alexdon_]

@malakhi

/t5/Xperia-Z3/Weak-Wi-Fi-signal-after-Android-6-update/m-p/1113651#M30502

Its the same for Z2/Z3/Z3c and will be fixed.

[Lord_viridis]

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@malakhi wrote:
Marshmallow firmware for z2 is beta version. I have same problem like u. it will fix on final release

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Can you show me proof of this? 

[Blade10X]

Well LongDiep. Mostly it's just the new system, but i hope it will ne resolved with new updates. You can try to use WiFi Signal Booster apps. This could enhance a signal from 30-40% i guess. I tryed it and did notice a little boost. When you are looking for those apps be carefull and choose wisely because most likely 80% of them are pranks only, it's though to find real app for this. Indeed i do know one. Description of this app: It's a deep blue icon with white wifi in the middle and red cross like first aid.

Search by 'WiFi Signal Booster'. Also there is another one called 'Interner Booster & Optimizer'. Red icon with white signal in the middle. This app can be used for both root or non-rooted phones. Give it a go, you might see improvements