Sony Xperia M4 Aqua Dual Marshmallow issues

[Nightwing]

After the update to marshmallow i am facing problems with wifi and mobile network signals. I have to stand near the router to use the internet and another problem is that xperia is not detected by pc companion. I tried 3 usb cable and it only charges, i have tried enable usb debugging option and updated drivers. Everything was fine in lollipop. This is update is buggy and i have seen others facing wifi issues as well. Please fix these issues soon.

[CameronT]

Hi @Nightwing,

Welcome to the community.

Because these issues started right after you updated your handset, I recommend running a software repair, as it is likely to resolve the issues you are currently facing.

You can find the steps on how to do this here: 

http://talk.sonymobile.com/t5/FAQ/How-to-perform-a-software-repair-with-Xperia-Companion/td-p/110305...

[Nightwing]

I tried connecting it to my laptop but it only charges, the pc doesn't detects it and doesn't even shows up in the device manager, i tried different cables and enabled usb debugging option as well its stuck at charging only, any solutions?

[Nightwing]

As you said that using pc companion would fix this issue,but it didn't. I powered off my phone and pressed volume down button then connected the cable the light went from red to green. I have another xperia that too worked fine last week. Its on lollipop and even my other xperia m4 doesnt connects to pc excepts it only shows charging. I tried enabling debugging mode as well. I tried 3 usb cables and xperia only charges. Maybe its a software issue. Its not allowing the connection between the pc and phone. Still i am facing problem in wifi,its having the range problem. Is there a fix?

[valyo_bg]

There is a some problems with drivers on Windows 10 - MTP drivers not work properly. Fortunately ADB drivers work fine. So you can try to reflash with Flashtool with ADB drivers. I have similar problem - Xperia companion did not detect my M4 Aqua because of Windows 10 drivers. So I decide to download FTF file for my model and reflash with Flashtool. Of course after reflashing Xperia companion still not recognize my phone, but 2 day ago there was Windows 10 update and now Xperia companion found properly my phone and work perfect. So if you have Windows 10 first try to update to latest version and then if Xperia companion still not recognize your device use Flashtool to reinstall Marshmallow.

[Nightwing]

I downloaded the xperia flashtool and downloaded all drivers including sony pc companion, nothing worked. I have two m4 aqua one is updated to 6.0 and has the issues stated above and other one is on lollipop. Last week i was tranferring my files and mtp was working in windows 10 and pc companion detected my phone, i did receive windows update in between but i don't know if it has anything to do with this, now the lollipop version and marshmallow version are not being detected at all. I am not sure if its the device or my laptop problems i tried all ports and tried 3 different cables and today i tried it on my other pc having windows 8.1. Is there still a way to fix it or should i take it to repair center because i am facing a lot of problem due to less wifi and mobile signals.

Please help me

PS. Even adb is not detecting both phones

[valyo_bg]

If in Developer menu USB Debugging is enabled on both phones - this is vital for adb drivers? I suppose that problem is with Windows itself, not with phones. I has same problems before major Windows update.

[Nightwing]

i turned on the enable usb debugging mode but still no response. There is an option in developer mode called select usb configuration. Whatever i select i comes back to charging only,sometime it shows media tansfer protocol but the pc never detects any of my devices, what should i do?

[valyo_bg]

Install again ADB drivers and before use check with their launcher that are installed correctly. To install them you first need to restart Windows in mode that disable checking for certified drivers - use Google to find proper way for Windows, because there are difference between Windows 10, 8.1 and 8.0 (I don't know which version you use). With Windows 7 for example , work without problems and you can install any driver.

[Nightwing]

I installed adb drivers again by disabling driver verification, re installed flashtool, pc companion and other drivers, still no response. I tried safe mode as well in xperia and nothing worked. The last time i repaired my other xperia using pc companion was connecting fine until this week when i re connected to check for problems. I believe there is a software problem because the device and pc don't communicate at all. I have attached a screenshot, whenever i connect to my pc using usb it shows ac charging.