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jogsoriano

Its the 3rd time..the last two incident i hav some1 who turned it on but having a hard tym turning it on..on the 3rd tym it happened i just pressed the power button and the up volume at the same time and it vibrated 3 times then after a few seconds i manage to turn the phone on...what does pressing the power button and up volume do?? Just want to know..thanks guys

Catgal

The problem is my phone switched itself off and it turned on but there is no display at all but the backlight is on. I waited about 30minutes to see what happen next, but after 30mins still just the backlight is on. Then i fell asleep, when i woke up the next day my phone is off. I pressed the power button but the phone doesn't turned on. I tried plugging it into the charger but nothing happened, there's no red light. Then i tried to hold the power button + volume up but the phone did not turned on. Then i tried to reset, i pressed the red button beside the sim tray but still nothing happened. I also tried the PC Companion but the computer cannot detect my phone. What will i do??? Please help!!! Thanks!!!

jogsoriano

Catgal Try to browse the forum for possible solutions to ur problm..nanyari sa akin yan 3x na and yet my fone's less than 2mos old...last tym it happend i just pressd the power button and volume up then nag on na sya...

Keiki

Just had this problem for my first time today at 6:30pm EST in New York City. I'M. Visiting and watch YouTube content and my brightness is at 50% and while watching the content it just shut itself off. Everything is up to date and that the first thing I did before downloading Apps to the Z Ultra. Firmware is update to date. PURCHASE on December 17th 2013 and receive the device on the 19th. No problems until now. SONY NEEDS TO FIX THIS ISSUE FAST BUT ALSO SEND EVERYONE A REPLACE SCREEN PROTECTOR. The protector isn't the best and already has scratches due to using a pen or pencil objects to write. This is a bad result and do not recommend using a pencil or pen but only a soft touch stylist. I LOVE THE DEVICE BUT IF THIS CONTINUES I will be force to return the product and ask for a refund. This is model C6833

jhay2

I had a same problem.too with my z ultra why Sony had alway complain like this what are u going to do abawt this problem Sony?

SLyn9745

Hi also happening to me on my 2 month old Z Ultra (c866).

Can't find the optimise backlight setting in display.

My phone randomly reboots itself, I find mostly when I either turn WIFI on or off it might freeze and the led notification light flashes red and it reboots.

Also when I plug in my charger at night and turn off the wifi, it may reboot and the wifi will be on and this i think causes it to consantly reboot all night. Also have a static sounding noise when using phone and opening apps that dissapers when i lock the fone.