Hi, my LG started to turning off the display self. It happend sometimes, but now display doesn´t screen anything (LG logo, bootanimation, homescreen nothing). Touch is dead too in that moment. Is it possible the error is in display (connector, power button etc.) and motherboard is good? Or is it bad motherboard?
Thanks
Hard to tell, I'd try charging the phone and see if the notification LED turns on. If it does then we would know that motherboard is at least partially working, maybe even not damaged (in my experiencie motherboard was either fine or completely broken, nevery anything in between)
As for the connector: Everything inside every smartphone is packed so tightly that it would be rather improbable for tge connector to disconnect, I would rather say that it may rather be broken screen.
If you have flashed unofficial ROMs they also may cause these kind of problems (buggy drivers etc.), you could try to enter fastboot mode or recovery mode to see if screen works there,these two modes uses different software than normal "android" mode.
---------- Post added at 05:47 PM ---------- Previous post was at 05:41 PM ----------
(for some reason I am unable to edit my previous post)
About power button: if you turn on G4 it should vibrate, that would tell you if your phone boots.
If you have multimeter you could try to measure battery voltage, it should be between 3 and something volts to 3.8V (fully charged)
If everything else fails you can once again try to enter fastboot mode and check if your PC detects it ("fastboot devices" in cmd)
Related
When i charge my kindle fire the fff bootmode charging for low battery screen comes up. then it turns off and continues charging, and then goes back to the low battery screen. i found out it was because the backlight was still on. Anyway to fix this? I cant charge my battery without it dying because of the backlight. Ive tried usb from multiple devices(my wallcharger wont work...)Please Help! I have nothing without my kindle fire!!!
EDIT: Thepooch - what do you mean. hook it up and then press the power. it doesnt work. neither does the hard reset. please help if you see a solution. thanks
Edit: Thanks! @Thepooch I connceted it via USB and when the backlight srltayed on, I did a 20 sec hard reset. In the morning it was fully charged even though it didn't indicate it was being charged.
When its hooked up to usb power it off
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hope kinfauns wont dislike my quoting him. You actually need to leave the device connected to a low amp power source like a computer's USB port for FFF to enter this charging state. It will bypass the low battery charge if you connect it to a wall charger.Turn off the KF, connect it to your computer. It will try to turn on and go into charging mode. It won't turn on the backlight, but you will see that the power button has a dim amber light. Just leave it alone for a while (half an hour to an hour) and when it has enough power, it will get out of charging mode and continue booting. When it's able to boot and stay booted into the system, you can connect your wall charger and continue charging the battery. What bootloader are you running?
What do i do if phone won't turn on ^_^. It was turning on... but then shutting off mysteriosuly during boot... and during cwm... but now.. even after a battery pull.. and also plugged in... no power...will go to the phone?
What makes no sense was that it working fine.. till I edited an eri.xml file.... all I did was place it into /sdcard and /data .
- Can't get into bootloader
- Can't get into download mode
- Won't even show "charging" screen
- When I plug it into a computer, it does the OMAP4440 disconnect, reconnect shindig.
- Tried different batteries
After like 2 hours of research teh OMAP4440 is somehow related to the black screen of death... I mean just look at this:
device manager "omap4440"
I have no idea what to do............................ ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...
I was just about to post that I'm in a similar situation.
I plugged mine in yesterday to charge it up and when I went back to check the phone was dead no life at all.
What makes no sense was that it working fine.. till I edited an eri.xml file.... all I did was place it into /sdcard and /data .
- Can't get into bootloader
- Can't get into download mode
- Won't even show "charging" screen
- When I plug it into a computer, it does the OMAP4440 disconnect, reconnect shindig.
- Tried different batteries
no one's ever solved omap4440 ? + black screen of death?
So I bricked my GNEX...Then brought it back to life!
IDK if this helps or not
did you get you phone fixed i have the same exact problem and wondering if there is a fix for it
Mine is having similar issues, the led indicator is lighting and it's making noise but no screen lighting at all. I tried hard reboot. Everybody keeps prompting me to use command mode by pressing home, volume up and power button.,the trouble is my phone doesn't light up so I can't see the commands. I sent my first s7 edge back and I'm on the replacement and now it bricked
jdub4christ said:
Mine is having similar issues, the led indicator is lighting and it's making noise but no screen lighting at all. I tried hard reboot. Everybody keeps prompting me to use command mode by pressing home, volume up and power button.,the trouble is my phone doesn't light up so I can't see the commands. I sent my first s7 edge back and I'm on the replacement and now it bricked
Click to expand...
Click to collapse
This particular forum is for a different galaxy phone than s7, but I do hope you solve the problem
Hi there.
I have a problem. I installed a kernel called ElementalX-m8-1.04-GPE.zip.
Now my phone wont display anything other then the HTC logo when turning on the device.
After the logo has disapered. the phone goes dark. I can hear when i touch the display that something happens. (i can hear dial pad sounds).
I can also hold down power and volume down and hear a screen shot sound.
I can restart the phone my holding down power + volume down + volume up.
I wish to enter recovery so i can undo what i just did. Hope someone can help me.
My phone is a brand new HTC one M8... so this sucks.
Yeah, hard situation. I had the same on my Live with Walkman, but I went to a service where they ressurect my phone. Anyway I think you installed a wrong type of kernel that's why you see dark. Can you tell me when you plug usb to your phone and computer is LED on red? When yes, try to charge the battery. I heared that sometimes work
Yeah the light does turn on.
I'll try charging it then.
The computer can see the device btw, if that's any help.
i just tried HTC sync manager. Just to see if i could restore the phone that way. Sync manager can see the phone, but it says somthing about it's not connected properly. So the restore button is grayed out. I can't press it.
Please post to the apropriate forum for your device
http://forum.xda-developers.com/htc-one-m8/help
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BikerEcho said:
Hi there.
I have a problem. I installed a kernel called ElementalX-m8-1.04-GPE.zip.
Now my phone wont display anything other then the HTC logo when turning on the device.
After the logo has disapered. the phone goes dark. I can hear when i touch the display that something happens. (i can hear dial pad sounds).
I can also hold down power and volume down and hear a screen shot sound.
I can restart the phone my holding down power + volume down + volume up.
I wish to enter recovery so i can undo what i just did. Hope someone can help me.
My phone is a brand new HTC one M8... so this sucks.
Click to expand...
Click to collapse
And here a guide thread for your device http://forum.xda-developers.com/showthread.php?t=2694600
sorry about that. I will create a new thread on the correct forum
HI all my tab s will not turn on, but if i plug it in to a wall outlet it turns on fine, but it does not boot into android it boots into recovery menu. Long story short i sent it in for repair to Samsung last month the day i got it back i went on holiday. that's where the same issues came back screen flickering erratic battery not charging up properly freezing up etc etc. When i sent it to Sammy it was on kitkat and all Sammy service center did is update it to lollipop ran some diagnostics and sent it back to me.
Due to it not booting up i had a old 4.4.2 firmware file on my computer so i flashed it since then it don't boot to android it boots to android recovery menu and it will not turn on with out a wall outlet as a power source, also soon as i remove the wire it shuts off immediately..
i'm downloading lollipop as i'm typing this out, but the problem is it's been plugged into the laptop for about 15 mins or so and it's not turning on so how do i flash lollipop ?
Try holding the power button home button and both volume buttons all at once holding the home button first then the volume keys then finally the power button. If this dont work or your still getting screen flicker open tab up remove battery for 5 mins and plug it back in. YouTube has tutorials
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And hold them in for up to ten seconds
Hi! I have an LG x Power (posting here because the power doesn't seem to have a forum yet) and when it was booting I held the power button and the two volume buttons down by accident... It turned off and it wont turn back on again even after charging. now here's the wierd part: when I plugged it into my computer to check if I could see what happened, it instead of giving me nothing, downloaded some drivers.
sounds like you might be in some sort of download mode. Have you tried just holding the power button in, like a forced reset
hey buddy in case you still didnt figure this out you have put it in bulk mode but you can hold volume down and power for awhile and it will reboot
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MVGiC said:
Hi! I have an LG x Power (posting here because the power doesn't seem to have a forum yet) and when it was booting I held the power button and the two volume buttons down by accident... It turned off and it wont turn back on again even after charging. now here's the wierd part: when I plugged it into my computer to check if I could see what happened, it instead of giving me nothing, downloaded some drivers.
Click to expand...
Click to collapse
hold power and volume down for a bit and it will reboot had same thing happen, it is odd but what you discovered is something I mentioned a couple weeks ago that for some reason it goes into qualcomm bulk mode when doing that combo of key presses same thing happens on mine, but sadly I cant see the partitions when it is in that mode like normally wish I could cause then we could maybe send a custom rooted system partition to it but sadly that doesnt work, but you can still run scripts from the download mode on it at least, but so far I havent found one that will actually work for rooting it seems the same restrictions apply in marshmallow as when it is actually booted on the com ports hopefully someone can piece together something from the quad root exploit that we are still vulnerable to on this device to eventually get a root shell.