[Q] RAY ST18I USB not Connect(USB -> Charging(AC))

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http://forum.xda-developers.com – Hi. my ray is not usb connect. custom kernel(firmware) was a long time ago. Since then, and was kept. yesterday. Ray power on. but. When connected to computer via USB, there is no response. PC - RAY (usb connecting) in RAY _ setting - about phone - status - battery status - Charging (AC) why charging (AC) ?? charging (USB) is normal if. maybe, RAY usb connecter problem. (HowTos)