lumia 640 lte phone won't shut off , won't power on past initial windows logo screen. the furthest lightning bolt , gear screen. tried volume up, volume down, power, , volume down button combo no avail. any appreciated.
before doing rest mention in post need press , hold volume down , power buttons until vibrates press volume down until see big ! mark perform steps mention in post if did steps mentioned , it's not helping may need download windows device recovery tool on pc , follow instructions let know how go or if need more rgds roy
Mobile Devices / Microsoft Lumia and Nokia Lumia / Software update / 600-series
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