Develop Bugs

Phone won't boot

Hi All,
My phone will not boot. I have tried soft resets multiple times. It will not even boot after I selected the factory data reset by holding down the volume down and power button since it seems like that requires a full boot to reset. During boot it shows the LG logo and sometimes makes it to the AT&T logo but after that either black screens, back to the LG logo and powers off, or boot cycles and keeps showing the LG logo multiple times. I have taken out the SD card and tried all these steps with and without it. Took out the sim card and reseated it. The phone is stock and not rooted.
Let me know if you guys need more information or have any ideas.
Thank you all and I'm sure this is been solved before, but I'm at work and don't have time to research so thoroughly through all the threads/posts.

if it's not rooted and stock, i'd send it back to lg under warranty

reg66 said:
if it's not rooted and stock, i'd send it back to lg under warranty
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I have already put in a ticket to LG before this post for their return shipping information and repair. I was just hoping by some miracle that someone had a fix besides a factory reset since it won't even boot to allow the factory reset.
Thank you

Ok, sorry for the lacking help! Good luck, hope someone else replies with a suggestion

This just happened to me too.
Shows the lg logo. Sometimes the att logo.
But, just doesnt boot up. All i see is a blank screen :/

From everything i read here on XDA it seems that many of the phones are faulty.
Symptoms are almost identical. Outta no reason reboots and dead phones. Many of them are stock not rooted.
I have still no answer from LG about mine. Hope to hear soon. Something is going on with these phones but what causes it.....that`s the question....

The same thing happened to my H-815 model. I went to bed listening to YouTube and woke up to a dead phone. The LED doesn't come on when charging. Just like you, when I turn it on all I see is the LG boot screen and then it shuts off. The phone repeats this twice and then doesn't turn on again.

LG G4 H815l got stuck on logo of LG

Hello,
I have LG G4 h815l, I have been playing "Clash Of Clans" and suddenly my phone turn white and then shut down.
When i am tring to turn it on it got stuck on logo of "LG"
I tried to get into "Download Mode" and "Safe Mode" and nothing work...
Anyone have a clue what can i do?
Thank,

tamelior said:
Hello,
I have LG G4 h815l, I have been playing "Clash Of Clans" and suddenly my phone turn white and then shut down.
When i am tring to turn it on it got stuck on logo of "LG"
I tried to get into "Download Mode" and "Safe Mode" and nothing work...
Anyone have a clue what can i do?
Thank,
Click to expand...
Click to collapse
it seems you got the bootloop problem thats LG's problem with hardware.. so you can try going back to stock, read carefully in the general for how to retrieve your data.. and you must sent you phone back to get fixed... would you mind sharing your first 3 digits of your serial number..

tamelior said:
Hello,
I have LG G4 h815l, I have been playing "Clash Of Clans" and suddenly my phone turn white and then shut down.
When i am tring to turn it on it got stuck on logo of "LG"
I tried to get into "Download Mode" and "Safe Mode" and nothing work...
Anyone have a clue what can i do?
Thank,
Click to expand...
Click to collapse
Well i got a similar problem with yours earlier this month. I was browsing on Facebook and it suddenly hangs on me and kicked into a restart and never got pass the boot logo since (at least in room temperature). Then i realised i got the problem most people with this phone had, bootloop issue. As per searching on the internet, i found that there is a slight hope of backing up my data by putting the phone in the freezer, which i did. Guess what? The phone boots up and i manage to backup all my files (while it's in the freezer). Once it's out of the freezer and went back to room temperature, the nightmare repeats itself and i have to send it in for repairs.
I'm just sharing this just so if there are people with the same issue as i had could have at least backup their data off the phone.
Bootloop issue device : H815 SEA S/N 509
Replaced MB by my retailer : H815 TWN S/N 602
Sent from my LG-H815 using XDA-Developers mobile app

LG3 wont boot + Blue screen

Hello, i faced a serious problem this evening, just after i finished a call phone, the screen of the phone went Blue and then it went off, i started to put it on again and then it showed the screen with LG and then it went black no boot at all. i removed the battery and i tried again and still the same, so i tried to remove the battery and put it again and plug it with the computer, it went on with charging battery and then suddenly went to blue screen again.
So i tried to put the recovery mode with power down and on/off and it worked i got the recovery mode screen with factory reset but it was only with factory reset, i tried it and then i put yes and it reboot and then after LG screen, it went black again....
so i tried to put download mode with usb cable but it wont, always i got the blue screen. what should i do, where is the problem exactly for people who had the same problem ? the batterye ? the motherboard ?

anyone to help ? i changed the battery and it wasnt coming from it, and the phone showed others anormalies like sometimes u can charge the battery and you see the % and sometimes it goes blue screen and shut down. anyone had the same issue before ?

My LG G3 randomly started giving this problem for 3-4 days till it went completely bad. It just wouldn't get past the Blue Screen. Since I had to take a backup before taking any further action, I have been able to get it up and running for very short durations by keeping the cell phone in the freezer for an hour or so. Yes. I am not kidding. After it freezes, I can get it up on about 5th or 6th attempt. Sometimes even more. Be mindful that the battery is now showing a red humidity marker due to the freezer.
I am thinking of asking LG to repair it. What a piece of crap. Its only 18 months old for me.

P605 in need of some help.

Hi, hoping someone can help.
Having a major problem with my P605 (Hong Kong version), It just will not start up anymore.
Current State:
At the moment, with just the power button, it shows the samsung galaxy note 2014 logo. Then a few seconds later the startup sound will play. Then a few seconds later the samsung boot animation plays. Then once the animation stops and just displays the samsung logo, nothing else. It stays on that, and can stay on it for hours.
Note: The Samsung boot animation has a very pink hue to it, like the cyan and yellow are no longer there. More on that later.
With the Power + Home + Vol Up it says recovery mode is starting, then resets and boots as above.
With the Power + Home + Vol Down it goes into download mode no problem.
Background (Some of it may or may not be relevant, just putting it on here in case it is):
Up until a couple of weeks ago it was stock, but rooted JB (IIRC), then it was accidentally dropped (not by me). It is in a Trident Krakhen case, but that did not stop damage being done, the damage being the backlight stopped working. I followed a Youtube guide and removed/reinserted the ribbon. Put it back together and switched it on, and worked, sorted!
Now I thought as the seal of freshness has been popped, I may as well upgrade it to Lollipop so I can play Pokemon Go. As Lollipop has not been released for HK p605's I used the Irish (I think) firmware. Upgraded using Odin, no problem. So then I wanted root access, so I used the method described on XDA to root Lollipop using "CF-Auto-Root-lt03lte-lt03ltexx-smp605.zip". Again, flashed with Odin, no problem. But the root didn't take, a few programs randomly lost root access, others would not ask for access and just say the tablet was not rooted, etc. I reflashed the file at least 6 times to try and get it to take. Eventually it did.
Forward to the next day, I go to unlock my tablet and the screen has gone all pink, same as above, like Cyan and Yelow have gone. And a black shadow is over the left half of the screen. I restarted the tablet, colours came back, yay. All fine up until yesterday, the pink and shadow were back again. This was late at night while I was in bed, so not near the computer. I restarted the tablet. This time the pink stayed. OK, so I thought I will wipe the tablet back to factory and see if that helps (not done a wipe or anything else up until this point) so I try to go into recovery mode. It showed the logo and the little blue recovery text, then black screen, then normal boot logo and back into the OS. Tried a few times to get into recovery mode, but just kept resetting back to OS. So I told ROM toolbox to force a recovery restart, big mistake! It went into recovery boot loop. Just Galaxy Note 2014 entering recovery" then blank, repeat. No sound, nothing. I think that perhaps if I can turn it off, it may reset the whole thing, I put the tablet into download mode, then go to sleep. In the morning, the battery is dead. Great! Plug it in, instantly recovery boot loop. Fudge! From this point I don't know the battery level of the tablet, so that MAY be causing issues. I plug it into the PC to flash with Odin. Flashed stock lollipop, restarted, flashed stock bootloader, flashed CF auto root. Multiple times in each. Nothing seems to bring it out. The closest I got to something was the tablet telling me recovery was screwed and I needed to use Kies recovery. I left it plugged in for a few hours to try and build up some battery power, the PC does not provide enough power to charge, it makes the screen flicker rapidly when the battery is empty, but all the time while charging it is boot looping and the screen is on full brightness so I don't know how much I gained.
Finally flashed stock KK, and now it just hangs on the Samsung animation logo as above.
Is there anything I can do?
Does the pink hue and black shadow mean hardware is affected? The colours seem fine in download mode.
If anyone could help that would be great as I am scratching my head here.
EDIT 1: OK, I took the casing off, found that the little push on connector next to the usb connector had pried itself loose, I reattached it, and removed/reinserted the screen ribbon cable. All while the tablet was powered on (my old electronics teacher would have had a fit!). Restarted, the pink tinge has gone and the boot animation came up at the same time as the audio. Good signs. But still froze on the 'glow' effect. Tried recovery and YES it went into recovery, although the little android fell over with an exclamation mark over him. But still, progress. So now I am reflashing stock, will see how it goes.

Is my 1+3 dead!?

Hi everyone,
I'm experiencing pretty silly situation with my phone.
So the story begins here:
I was surfing the web while listening to music in the bus when suddenly my oneplus3 randomly turned off and I couldn't turn it back on. (I was on something around 15% on battery so it's not a low battery problem) I tried to turn it on several times and after holding the power button for like 10secs it turned on, and after pressing the power button again (because I needed to get past unlocked bootloader screen and dm-verity) I saw a boot screen. The capacitive button leds turned on and after 3 secs it turned off again, so I started worrying... After a while I tried to access the recovery, but no luck at all. It powers it self off after bootscreen. So I started to research. Tried to flash the entire OS, partritions with msmdownload tool. After several unsuccessful flashes (firehosewritedata failed sometimes while writing userimg or system.img or boot.img) I did get the download complete green text message, and after successful flash, the white LED turned on, even the phone was not plugged in USB or charger and turned off. The screen is completely black and the white led just flashes constantly without blinking or anything. I could only turn the led off by pressing the power button for another 10 secs. And after turning the phone off, problem still remains. After oneplus logo phone shuts down...
I can access bootloader.
And after flashing everything should be on stock, because now I only got screen only about bootloader, no dm-verity..
And of course - I still cannot access the recovery.
p.s. I tried to do the power cycle (as the tech support told me) but still no luck at all.

did u tried the full msmdownload tool (1gb) or the 55mb version ?

Mukthar. said:
did u tried the full msmdownload tool (1gb) or the 55mb version ?
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1GB version

djemm1996 said:
1GB version
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Are you sure that you did it right? Did your phone show up as mentioned in the instructions?

Puddi_Puddin said:
Are you sure that you did it right? Did your phone show up as mentioned in the instructions?
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Click to collapse
Of course. Everything is done right. I also get that green "download complete" message.
p.s I also opened the phone. water indicators are fine and no major defects what can i see by eye... All connectors are good as well.

Puddi_Puddin said:
Are you sure that you did it right? Did your phone show up as mentioned in the instructions?
Click to expand...
Click to collapse
And yes, phone was connected right. :good: installed drivers with test mode on Win10 and got Snapdragon device in COM devices. As well the MsmDownload tool shows up my device in port #20

Any ideas?

djemm1996 said:
Any ideas?
Click to expand...
Click to collapse
Follow method 2 from the Hard Brick guide by Naman Bhalla and try two or three times.
Sometimes it takes more than once for restoration.

Since you opened the phone, i think your warranty is gone now.
If the msmdownloadtool didnt help you, there is nothing you can do i think.

try to flash again, and if it still maybe something short inside.
if you have disassembly your phone, try disconnecting various flex cable like camera, sim slot etc that connect to the mainboard, that doesn't prevent device from powered on, then try to turning it on.
if it still, check your mainboard, if you don't know how, send it back.

AcidNoteZ said:
Since you opened the phone, i think your warranty is gone now.
If the msmdownloadtool didnt help you, there is nothing you can do i think.
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Click to collapse
Is ir really gone? There is a still warranty void sticker on the screw there, but of course it's possible to see by eye that the phone has been opened.
I have an appointment with Level2 tech support @oneplus, they are going to remotely flash the entire OS, but do you think they are using pretty similar technique as the msmdownloadtool?

djemm1996 said:
Is ir really gone? There is a still warranty void sticker on the screw there, but of course it's possible to see by eye that the phone has been opened.
I have an appointment with Level2 tech support @oneplus, they are going to remotely flash the entire OS, but do you think they are using pretty similar technique as the msmdownloadtool?
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Click to collapse
They are doing the same thing like you did.
I already had a session since i thought they are going to do something "special"
You can try the remote session but im afraid that wont help you if you already did it multiple times.

What about battery? Charged?

drmuruga said:
What about battery? Charged?
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Yes battery is charged of course. It's just doint the same thing. Turns on, after a while when bootscreen comes it just turns off and white notification led appears, after that nothing.

I tried to flash it with tool using method 2 for like 15 times with "download complete" messages, but still no luck at all. Tried to erase partritions with fastboot, flashing just only recovery, modded recovery etc. but I still cannot access the recovery nor system. I just don't get it why the phone does not boot into recovery if I flash it or boot it straight away, It just only turns off and that's it. nothing more. Only black screen and white led lighting all the time (after a while the phone turns warm).
I have read all the MsmDownloadTool thread in "Mega Unbrick thread" and saw that few people have experienced the very same situation as me, so I was wondering if there is any fix for this? It's so strange that I was just surfing the Web and it just turned off by it self with like static image for miliseconds and after that just black screen.
There should be any fix. I guess that it's just a partition error...

Ok, not good news. I had a little remote session before a while. They says it's already a hardware problem.

AcidNoteZ said:
Since you opened the phone, i think your warranty is gone now.
If the msmdownloadtool didnt help you, there is nothing you can do i think.
Click to expand...
Click to collapse
Pfffft you think manufacturers notice when you take apart phones? Hell I took apart my Xperia Z2 because it was having problems and then glued it back together with cyanoacrylate hahahaha (worst thing to do but wtv) and no one noticed though it was seemless and everything looked perfect

Guys, I've got something for you! Not really the same thing as Naman.
p.s. not saying its original hehehehe keep safe

man i got a very similiar problem but my op3 has a black screen i was also on low battery around 5-15% when my phone went off after i was in twrp

Actually I was on twrp too! Also I have recently noticed that recovery loading speed was far too long than normal one. I'm talking for something about 5-7 minutes after reboot into twrp. So, who knows what did happen. Just made an RMA request. Will see how it goes.
Anyway, I was on stock 7.1.1 and it's just rooted with custom recovery and that's it! Nothing more! Is that just a factory failure or maybe it's caused by drops i have had? Nothing serious for a 4-5 times for a half year. Of course I have used it even in winter when the snowflakes are coming down from the sky and little rain. Btw, these liquid indicators are white, so all safe. ::laugh:
A
makadama said:
man i got a very similiar problem but my op3 has a black screen i was also on low battery around 5-15% when my phone went off after i was in twrp
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