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problem with screen :( help me please

OP djjs87

11th December 2014, 10:03 PM   |  #1  
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Hi, sorry for my english
I took the phone on a contract with three network two months ago upgrade. the problem started two days ago. several times a day phone locks the screen in black and do not want to unlock it, but you can hear in the background sounds and light up the navigation buttons. 10 seconds after the phone reboots itself. Today I did the upgrade android 5.0
Device: Galaxy S5 (Global / Snapdragon)
Model: SM-G900F
Region: XEO (Poland Open)
PDA: G900FXXU1BNL2
CSC: G900FXEO1BNL1
MODEM: G900FXXU1BNL2
CHANGELIST: 3416205
BUILD DATE: 12/01/2014
but still the same problem. I dont have insurance on the phone. what can I do now ?

Lock at photo this it start my phone, sometimes ist like that.
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13th December 2014, 08:37 AM   |  #2  
Mohammed779's Avatar
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Did you tried to format the phone..? Then freshly install the firmware
13th December 2014, 09:27 AM   |  #3  
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Yes of course. first step format the phone and later installed android 5.0
13th December 2014, 09:53 AM   |  #4  
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I can't tell if its hardware or software issue .. try installing fresh CM12 .. maybe that makes a difference .. and did you mess with the kernel/CPU/GPU rendering settings at any point?
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