nvram warning err = 0x02 after marshmallow update

[alanbr]

Hello

My Xperia C4 after upgrading to Marshmallow (Android) 6.0 is not working any longer with Wifi networks at 5 Ghz. Instead of  I have a strange error that says nvram warning err = 0x02 when displaying the names of wifi networks. The phone works well at 2.4 Ghz. I am curious to know if anyone has got the same problem and found a solution to it

Thanks

ALan

[Uliwooly]

Could you test it in >>> safe mode also, settings > about phone > test > test WiFi

[alanbr]

Done, same problem and test passed successfully

Other ideas ?

[Uliwooly · Accepted solution]

You could repair the phone with XC and check again

Xperia Companion (XC)

Software Repair Guide

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355