dimanche 16 août 2015

Black Screen, Blinking Red and Blue LED after boot



Hi all,
Before someone says it, yes I did look around for other threads before posting one of my own. I was not able to find the problem that I am having, nor a working solution.
I am currently running CM12.1 on a Sprint G3 (LS990). This morning, I woke up and found that my phone had frozen while charging overnight. No problem, this has happened before, so I unplugged it and pulled the battery out and rebooted. It was working fine, and then I noticed an update for CM. I hit download, and went to go brush my teeth. When I came back, I saw that it had frozen mid-download. Now it wasn't installing anything; the CM built in updater was just downloading the latest nightly. I waited 5 minutes for it to become responsive, but it never happened so I pulled the battery once again.

Now when I held the power button to start my phone, I saw the LG splash screen as normal. After that, the screen went dark and the LED began blinking red and blue. No matter how many times I pulled the battery to reset my phone, this would occur. I attempted to enter Recovery mode, but in this case after the splash screen the LED would briefly light up blue, and then the phone would reboot, and the cycle would repeat. The same would occur when I tried to boot into download mode.

So now that I cannot boot into anything at all, I assume that my phone is bricked. It is still covered under the limited manufacturer warranty, and since I can't boot up at all I assume it doesn't matter that it is rooted, but before I contact LG I would like to see if anyone here has any ideas.



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