Flash - G4 Q&A, Help & Troubleshooting

I've searched and searched to see if this is an issue / normal feature and can't find anything. I've just bought a new UK LG G4 and after it has been powered up for a few minutes the flash comes on albeit at a low level. It stays on even if I power off the phone and only turns off if I remove the battery.
I suspect I've got a faulty phone, is this right?

Related

T-Mobile D851 LG G3 - Turned off on its own, will not turn on or charge

Hello All,
I have a problem that occurred a few days ago with my LG G3 (apx. 6 months old). My phone has been running fine and out of nowhere, my phone turned off and I couldn't turn it back on. Initially, I thought that the battery may have died because I was using a golf app that utilized gps, but my phone was at a 100% 20 min prior to it turning off. When I got to my car, I plugged it into the charger, but I didn't see the charging light and it still wouldn't turn on. When I got home, I plugged it into the OEM charger for about two hours without any success (the phone felt warm similar to when I charge my phone). I've long pressed the power button, tried the power and lower volume button to hard reboot without any success. I bought this through the t-mobile site like my previous phones through their New2U certified refurbished program which comes with a 90 day warranty (expired).
Has anyone experienced a similar issue and if so, what did you do to correct the issue because T-Mobile referred me to LG so that they can direct me to an authorized retailer. Any assistance would be greatly appreciated.
Note: the phone is in great condition.
Thanks
Have you tried removing the battery, holding down the power button until any residual current is discharged, reinserting the battery, then plugging back in the OEM wall charger?
bump im having the same issue with my vs985 was at full charge turned off and didnt turn back on
beezysg3 said:
bump im having the same issue with my vs985 was at full charge turned off and didnt turn back on
Click to expand...
Click to collapse
Did you try to go into download mode? Remove battery plug it back in. hold Volume up and plug usb cable. Are you in download mode?
Any word? Does your pc detect it? Kinda in the same limbo... ?
Sent From My HTC One (M9)
turning off on its own might be due to overheating
Lg G3 d851 turn off
Hi guys i have same problem with my Lg G3 D851. Is turned off after upgrade root but isn't back on. display complete is black, no Recovery mode and no Download Mode. Can you help me?
if you guys are getting nothing when the phone is plugged in either then i suspect either something defective or mobo has lost connection to lcd screen. what roms do you guys use do they make sounds on boot? are you hearing sounds after attempting to turning it on and wait a few minutes?

Help! Blue screen, no download mode, can't factory reset.

Hello!
A few months back I rooted my Verizon LG G3 without any issue. Worked great, went smoothly.
Last night I was watching Netflix when the phone suddenly shut off without warning. I haven't recently installed anything out of the ordinary. When I tried to reboot, I got the green screen with a HW reset warning. Pressing Vol down to reboot gave me a blue screen. I'm able to reboot using Power + Vol down, but if I try any of the options [including factory reset] it suddenly goes to the blue screen.
I also tried getting into download mode without any luck - you guessed it: Blue screen. If I connect the phone to a PC, it doesn't recognize it. I've tried downloading and running the LG PC Suite, but it can't connect to the phone.
Any thoughts on what's going on and how I might be able to repair it? I've looked through various threads here and anything similar seems to revolve around flashing gone awry...and I'm not flashing anything (nor do I really have the know-how to do so).
Thanks, in advance, for any assistance.
Andrew
rewkim said:
Hello!
A few months back I rooted my Verizon LG G3 without any issue. Worked great, went smoothly.
Last night I was watching Netflix when the phone suddenly shut off without warning. I haven't recently installed anything out of the ordinary. When I tried to reboot, I got the green screen with a HW reset warning. Pressing Vol down to reboot gave me a blue screen. I'm able to reboot using Power + Vol down, but if I try any of the options [including factory reset] it suddenly goes to the blue screen.
I also tried getting into download mode without any luck - you guessed it: Blue screen. If I connect the phone to a PC, it doesn't recognize it. I've tried downloading and running the LG PC Suite, but it can't connect to the phone.
Any thoughts on what's going on and how I might be able to repair it? I've looked through various threads here and anything similar seems to revolve around flashing gone awry...and I'm not flashing anything (nor do I really have the know-how to do so).
Thanks, in advance, for any assistance.
Andrew
Click to expand...
Click to collapse
Do you get the blue screen when attempting both recovery and download mode?
Blue screen no matter what I do - recovery, download or normal mode. As a matter of fact, now the phone won't attempt to boot at all.
Really strange.
rewkim said:
Blue screen no matter what I do - recovery, download or normal mode. As a matter of fact, now the phone won't attempt to boot at all.
Really strange.
Click to expand...
Click to collapse
I feel you. I started a thread about my issue but sadly no one helped...
Seems like you got a "bricked" phone though Qualcomm phones are theoretically unbrickable.
I was in a worse situation than you, I think my board fried haha, but i'll try my best to help you here
Do you have a custom recovery?
IS there anything else showing on the blue screen? (example: Factory Reset Status)
also does your led flashes?
If you can't boot, or flash through download mode (KDZ and TOT method) I think either your bootloader got messed up (for no apparent reasons apparently) or it's simply a physical defect.
Are you sure your PC doesn't detect your phone's USB after installing the appropriate drivers?
Or does it detect the a device as "QDLoader 9008"?
Bastienhere said:
I feel you. I started a thread about my issue but sadly no one helped...
Seems like you got a "bricked" phone though Qualcomm phones are theoretically unbrickable.
I was in a worse situation than you, I think my board fried haha, but i'll try my best to help you here
Do you have a custom recovery?
IS there anything else showing on the blue screen? (example: Factory Reset Status)
also does your led flashes?
If you can't boot, or flash through download mode (KDZ and TOT method) I think either your bootloader got messed up (for no apparent reasons apparently) or it's simply a physical defect.
Are you sure your PC doesn't detect your phone's USB after installing the appropriate drivers?
Or does it detect the a device as "QDLoader 9008"?
Click to expand...
Click to collapse
I appreciate your help - thank you. For what it's worth, no - there was never any text on my blue screen, and I couldn't ever get it to get into Download Mode. Plugging it in to a computer did nothing except give me a blue screen, and the computer never recognized it as a device.
I ended up getting a replacement G3, so [for now] my troubles are over. Thanks, again, for your help.
(I guess this thread can be closed now.)
Bastienhere said:
I feel you. I started a thread about my issue but sadly no one helped...
Seems like you got a "bricked" phone though Qualcomm phones are theoretically unbrickable.
I was in a worse situation than you, I think my board fried haha, but i'll try my best to help you here
Do you have a custom recovery?
IS there anything else showing on the blue screen? (example: Factory Reset Status)
also does your led flashes?
If you can't boot, or flash through download mode (KDZ and TOT method) I think either your bootloader got messed up (for no apparent reasons apparently) or it's simply a physical defect.
Are you sure your PC doesn't detect your phone's USB after installing the appropriate drivers?
Or does it detect the a device as "QDLoader 9008"?
Click to expand...
Click to collapse
Quick update: I just learned today that a co-worker who also has a G3 (T-Mobile) also got a blue screen last week. He was told that this was a "known issue" with this phone...but they wouldn't provide him with a replacement, which also seemed strange.
rewkim said:
Quick update: I just learned today that a co-worker who also has a G3 (T-Mobile) also got a blue screen last week. He was told that this was a "known issue" with this phone...but they wouldn't provide him with a replacement, which also seemed strange.
Click to expand...
Click to collapse
Glad you got it replaced!!
And a shame for your friend :/
In my case, it was practically hopeless, nothing seemed to work, eventually i had to have the motherboard replaced. It was clearly a damaged bootloader, yet, they repaired it under warranty! funny
I doubt you can damage a bootloader without root or stuff.
I wonder what would suddenly mess with the bootloader after months of no issues?
I'm having the same issue. Or rather I had the same issue but I was able to get it back to stock through all the various .tot methods and using download mode and everything. I had no issues so I rooted it again, installed the 35B firmware from xdabbeb, as well as his 46A so everything is still stock, and running the latest android update, but the phone is still rooted. In any case it has been working fine for almost a week. Today it shut itself off again and now only blue screen when I turn it on. It barely gets past the LG logo before it blue screens again. I can't enter download mode because while installing the device on the PC it blue screens and crashes in download mode.
So I'm not sure what the deal is. I have the extended insurance and warranty but if you pull the battery for a couple hours and put it back in it will boot past the LG screen and start the OS, but the boot loading screen shows "Android" instead of "Verizon" so they'll know it's a custom firmware and do nothing for me. If anyone has any ideas I'm open to them! I would love to revert back to stock but with it crashing in download mode I can't even do that.
try these things but g3 is crap phone
you can try these things: use stock charger and try to boot then, i think its a 2amp charger. if it boots then swapping out battery with good one will likely cure it. its hard to find good new oem batteries though. usually that only works if you see a blue screen with a number on it. if its just a flat blue screen and connected to stock charger wont improve anything then its likely corrupted bootloader (hard brick). i currently am trying to resurrect one that is acting the same, it will only randomly turn on to blue screen, sometimes after days left with battery in while turned off. all the tricks like taking battery out, connecting to charger or computer without battery or holding power button to drain capacitors with batt out dont seem to help really. i am trying to get it to turn on into download mode at which point i will flash stock kitkat but seems like it wont happen. seems like lollipop 5.0 has something to do with this issue. there is an outfit on ebay that fixes it for 29bucks in texas. you will find them on youtube. g3 is crap. g2 was excellent except for touch screen issues.
can you explain what outfit in you are talking about? i am facing the same problem,
Simaramis said:
you can try these things: use stock charger and try to boot then, i think its a 2amp charger. if it boots then swapping out battery with good one will likely cure it. its hard to find good new oem batteries though. usually that only works if you see a blue screen with a number on it. if its just a flat blue screen and connected to stock charger wont improve anything then its likely corrupted bootloader (hard brick). i currently am trying to resurrect one that is acting the same, it will only randomly turn on to blue screen, sometimes after days left with battery in while turned off. all the tricks like taking battery out, connecting to charger or computer without battery or holding power button to drain capacitors with batt out dont seem to help really. i am trying to get it to turn on into download mode at which point i will flash stock kitkat but seems like it wont happen. seems like lollipop 5.0 has something to do with this issue. there is an outfit on ebay that fixes it for 29bucks in texas. you will find them on youtube. g3 is crap. g2 was excellent except for touch screen issues.
Click to expand...
Click to collapse
..
ARYA3 said:
..
Click to expand...
Click to collapse
Sorry "outfit on ebay" means seller on ebay. Don't remember what their name was. With the g3 it's like this: bootloop is usually fixable with a new battery. If it loads with charger connected, then definitely try new battery. If blue screen without a number, it's likely faulty motherboard. It may still boot occasionally, after leaving batt out or putting in freezer (yes freezer). If it does boot then do a backup immediately but phone is likely in need of new motherboard.
http://forum.xda-developers.com/showpost.php?p=70264535&postcount=9
BSOD is not so BSOD as you might think. This is actually the default view of the screen controller. It just means.... well... basicly... you're ****ed....
Something in the hardware doesn't fire up as it should and it's usually the SoC.... or the so called processor. Heating and baking might help if the problem is with low temperature welding but again it might not. And even if it does... it will be totally temporary (most cases weeks) because of the rapid increase/decrease of the processor temperature and thus welding joints... I'm basically in the same situation right now with the same phone... he fought well as it is 2014 phone after all but in the end it died heroically.... ;(

LG G4 bricked?

Good Morning all....
Yesterday I took my phone off the charger, played some of my games I play and then took a nap....battery percentage was probably still around 80% at this time...when I woke up, the phone was off. I plugged it into a charger and when the battery displayed it said it was 1%. I let it charge to about 30% and tried to turn it on. All I got was a bootloop of the LG symbol in the beginning. After that I tried to use recovery mode to clear the cache and it still just jumped back to bootlooping. I then tried factory reset from recovery mode and it just sits stuck on the yes or no screen to do the reset. I then tried to flash the firmware using the LG tool on my computer and it starts to flash then says it has lost communication with the phone, and to try again later.
Any ideas? Totally Stock LG G4 with the latest update.... I love my phone and hope theres a fix for this.
sounds like you got the dreaded bootloop issue... this is a known hardware defect that occurs (randomly it seems) and renders the phone useless. There are a few solutions if you hunt (freezer, or removing the motherboard and baking it in the oven [precisely]) but your best bet is to go to verizon and get a new one warrantied (no promises it won't happen again) or mail it back to LG for them to repair, sadly.
nice phone, until it isn't..

LG G3 D851 won't turn on!

Hey everyone,
I was using facebook while my G3 was charging and it suddenly turned off and since then it's not turning on. I've tried everything I could but unfortunately nothing has helped. There is no display and it seems like my phone is dead. A positive note is, when I put it on charge, display comes for just 2-3 seconds and it shows the phone is charging but then it disappears too and nothing happens. One of the repairman suggests that it's motherboard is not working anymore but to this I disagree cause if that was the case, the phone won't show a display even for a second? Please if anyone could help me. Thanks!
DId you try leaving the phone on a charger for a few hours? Maybe the phone needs a new battery?
Yeah I've tried 3-4 new batteries too, still it doesn't work. But one thing that's happening now is my phone is turning on, but it reboots (or turns off sometimes) when reaches the home screen or just before that. Same is happening when I enter into download mode.

[D855, Stock MM] Phone only does something without battery & while charging

So I bought a used and seemingly working D855. Could start/restart and use it just fine. At home I turned it off and now it won't turn on again. No notification led, no vibration, nothing.
If I take out the battery and plug in the charger the screen turns on with the usual charging screen and the exclamation mark. As soon as I put in a battery the screen turns off and it doesn't react to anything anymore until I take out the battery, regardless of if the charger is plugged in or not. I actually have another LG G3 and switched batteries, they are both charged and not the issue (both work in the other phone).
The dead phone is on stock MM (I think 30n), not rooted, no recovery yet. I haven't used it yet so it was completely on stock, not a single non-stock app installed.
I am completely puzzled, since I can't get into recovery/factory reset or download mode or even get a bootloop or something like that. Any ideas?

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