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my wifi and bluetooth not working when i get up from my sleep 
i've tried everything like downgrade to GB, then flash to ICS again, but wifi and bluetooth was not working 
is this because a hardware error? help please 
I guess it's a hardware issue
Dial *#*#7378423#*#* in dialpad/phonepad > service tests > bluetooth (and then Wifi) > test it
See the results and post it here
This is what happened to my bluetooth, my bluetooth was completely enable?! i'm surprised, after service test it enable??
but the wifi was not enable at all, this is the pic, just enabling, that's all, but the wifi seems not enable
and after enabling the wifi, my phone was restarting itself?? WTH!!
after restarting, 10 second again, my phone restart and restart again 
please help me 
Ofcourse i will try t help but it seems a hardware issue
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Backup everything as it will erase all data on phone (sms, contacts,apps)
Update/Repair your phone via PCC or SUS
PCC (PC COMPANION) – Repair your software with this .First do the setup without connecting your mobile to pc.(only connect when you are asked to).
Do it as follow >> PCC > SUPPORT ZONE> SOFTWARE UPDATE> REPAIR SOFTWARE (written with blue)
PC Companion http://www.sonymobile.com/global-en/tools/pc-companion/
SUS ( Sony Update Service) ... download and install it on pc and follow the on-screen instructions http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe
or
http://www.sonymobile.com/global-en/tools/update-service/
Both the links are same
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I am also my phone xperia ray wifi & blutooth not working
mac address not avaliable and ip
and when i turn on wifi my phone is hange
please can you support me !
To be modified. No stock FW. This is a potential problem.
Do a software repair,
Use SUS
SUS ( Sony Update Service) ... download and install it on pc and follow the on-screen instructions
I have rooted my xparia ray and after that my wifi is not working. Pls help!!
Same problem, WiFi and Bluetooth don`t connect. I have tried with PCC to repair, but it is not woorking.
Other ideea? Please help...