Develop Bugs

[Q] My glide is screwed after wifi download overnight

Hola, noob here with a problem.
My rogers captivate glide was behaving perfectly fine one night when I decided to download some large files over wifi. It was also plugged in for charging and I was using some app (forgot the name) to prevent my screen from turning off so I won't lose my wifi connection. I left it like that and went to sleep. Upon waking up, my phone was hotttt , the screen still on but it has faded into a greenish color with scan lines. It was unresponsive and I had to pull the battery. Ever since then, my phone would last no more than a few minutes before freezing and fading into scan lines. I thought it was a battery issue, so I got new batteries but that didn't help one bit. I even flashed the kernel and still no help. I did resets, recovery, wiped caches, took out sd card and sims, stock builts. Nothing worked. I can't connect the phone to the computer or wall charger either. The screen would instantly freeze and fades out upon plugging in the micro usb cord.
Have anyone had similar problems? Did I fried the soc? I don't think it's a problem with the screen since it was perfectly responsive the few minutes it worked. This noob needs helppp.
I've posted a video on youtube but I couldn't link to it, but if you search "captivate glide problem" you'll see a video showing the freezing problem I have. I'm from the US also, so I don't know if I could get samsung to fix it through warranty since the phone is Canadian.

Well I downloaded Modern Combat 3 and that was like about 1Gb and the screen turn off because I didn't touch it while it downloaded, and wifi kept going so I'm not sure why it didn't stay on for you
Sent from my SGH-I927 using xda app-developers app

Idk about the phone so much , but i am computer technician and it sounds like you overheated it, what we might call "burned it up".
The screen symptoms you have described are a dead giveaway, especially the lines
If this was a laptop, I would be sending it off for a reflow .
Typically, the circuit board gets so hot, the solder on the ships melts enough for a tiny bit of separation. This requires a "reflow ", where specialized equipment is used to repair the solder connections.
First, you should to a factory reset , then try to do a warranty claim. (unless u have insurance from your cellular provider, then u might check with that)
*edit, sorry, I missed the warranty part the first time I read ur post*
The next option would be to check with the guys at www.mylaptopisbroke.com
Email them, ask if they concur with my diagnosis and if they can help.
I have been dealing with them for about two years and always been highly satisfied. (They are in NY, I am in TN. I have sent literally dozens of devices to them)
If none of those 3 options work out for you, start looking for a new phone.
Sorry :-/
Sent from my SGH-I927 using xda app-developers app

Sorry, but I agree with the previous poster, sounds like a hardware issue. Start the warranty process, can't know if it's gonna work til you try it.
Not to try to close the barn door after the horses have bolted, but in case you get into a similar situation with your new phone, there's an easier and safer way. When you're in the WiFi screen hit the menu button and under advanced settings there is the option to keep WiFi on during sleep. Also, as you have found out, be careful with any apps that directly control the hardware.

Had a very similar scenario as the OP described. Went to bed with it plugged in and streaming DI FM in high quality, woke up in the middle of the night by burning myself on the metal back plate. Unplugged it and pulled the battery, when I woke up in the morning after a rather worrisome night sleep I discovered my WIFI would not work unless I was within a foot of the router otherwise it wouldn't get any signal. I assumed the devices internals were damaged and that is what caused the problem, glad to know someone else aside from me has had a similar issue. Best bet would be trying to get a replacement through the warranty unless you have some type of protection plan through your carrier.

I see, thanks guys for the inputs. I had a feeling it's a goner. I can't do the warranty since it's rogers and I'm from the U.S.; bought it off Newegg unlocked without a warranty. So I guess I'm screwed.

Had the same thing happened to me. Had to send it to sammy to get fixed the had to replace the whole board
Sent from my SAMSUNG-SGH-I927 using Tapatalk 2

ericpeacock79 said:
Idk about the phone so much , but i am computer technician and it sounds like you overheated it, what we might call "burned it up".
The screen symptoms you have described are a dead giveaway, especially the lines
If this was a laptop, I would be sending it off for a reflow .
Typically, the circuit board gets so hot, the solder on the ships melts enough for a tiny bit of separation. This requires a "reflow ", where specialized equipment is used to repair the solder connections.
First, you should to a factory reset , then try to do a warranty claim. (unless u have insurance from your cellular provider, then u might check with that)
*edit, sorry, I missed the warranty part the first time I read ur post*
The next option would be to check with the guys at mylaptopisbroke
Email them, ask if they concur with my diagnosis and if they can help.
I have been dealing with them for about two years and always been highly satisfied. (They are in NY, I am in TN. I have sent literally dozens of devices to them)
If none of those 3 options work out for you, start looking for a new phone.
Sorry :-/
Sent from my SGH-I927 using xda app-developers app
Click to expand...
Click to collapse
I've contacted mylaptopisbroke and they told me that phone repairs have been discontinued until midwinter 2013.
Is there anywhere I could buy a new soc??

Try mobiletechvideos.com or phonedoctors.com

I've heard of reflowing oneself by putting it in the oven at 550 degrees for 10 minutes or something. FWIW.
Not sure I'd want to do it myself, not having better information, but perhaps there's something out there some googling will reveal.

I've look at the sites, no captivate glide stuff. Guess captivate glide is not that popular a model. I've read about reflowing, but too chicken to try. I did took took the phone apart but saw that the LED is on the board itself and couldn't be detached; it's housed in some soft rubber feely box. I had a feeling it would melt in the oven.

in the options you can change it to keep wifi on all the time.. i keep mine on all day.

bobbinthreadbare said:
in the options you can change it to keep wifi on all the time.. i keep mine on all day.
Click to expand...
Click to collapse
Yeah... I know that now... too late though.. ahah

What have you done with this?
Have you turned it on recently and found it still works?
I have a similar problem and other threads have suggested it's a software problem that might be fixed by installing a new ROM via odin

So I baked my G3 in the oven...

Sometimes I do brilliant things, but this takes the cake. My G3 was having charging issues - wasn't charging at all. It looked like one of the connectors on the charging port was broken. So a friend tells me that his brother puts his damaged motherboards in the oven to reflow the solder. So, like a dummy I look around online amazed at all the success stories, take my phone apart, and carefully cook my motherboard for supper.
I did 385F for 8 min, waited 20+ min to cool, wrapped everything except the charge port in foil, all that. So when I put it back together....nothing. Occasionally a blank blue screen appears then goes away.
So, cam I do anything to bring back this phone that was awesome before a lost my head?

ijr150821 said:
Sometimes I do brilliant things, but this takes the cake. My G3 was having charging issues - wasn't charging at all. It looked like one of the connectors on the charging port was broken. So a friend tells me that his brother puts his damaged motherboards in the oven to reflow the solder. So, like a dummy I look around online amazed at all the success stories, take my phone apart, and carefully cook my motherboard for supper.
I did 385F for 8 min, waited 20+ min to cool, wrapped everything except the charge port in foil, all that. So when I put it back together....nothing. Occasionally a blank blue screen appears then goes away.
So, cam I do anything to bring back this phone that was awesome before a lost my head?
Click to expand...
Click to collapse
and just when I think I've heard of everything...
reflowing is for, in general, gaming systems/boards which no longer use lead based soldering, and have grown older and connections may go bad/brittle.
Your G3 is way new.

JeffDC said:
and just when I think I've heard of everything...
reflowing is for, in general, gaming systems/boards which no longer use lead based soldering, and have grown older and connections may go bad/brittle.
Your G3 is way new.
Click to expand...
Click to collapse
Just when you think you saw and heard every dumb things... Wow
SENT FROM MY D852 G3 RUNNING CM12.

shahkam said:
Just when you think you saw and heard every dumb things... Wow
SENT FROM MY D852 G3 RUNNING CM12.
Click to expand...
Click to collapse
shahkam,
reflow-
... "is a process in which a solder paste (a sticky mixture of powdered solder and flux) is used to temporarily attach one or several electrical components to their contact pads, after which the entire assembly is subjected to controlled heat, which melts the solder, permanently connecting the joint. Heating may be accomplished by passing the assembly through a reflow oven or under an infrared lamp or by soldering individual joints with a hot air pencil." wiki or someplace
We (military/DOD) have equip 'reflow'ed (repaired) all the time. Newer boards, including gaming consoles, which no longer use lead based solder, considerably more. Comparatively, older (lead based) boards are much more durable and the connections remain stable/intact much better/longer.
reflow.
WOW

Next time use a microwave

Well it'll make a good coaster for my coffee. Darn expensive mistake there.

Baking th MOBO
My LG G3 died last night. First I got the blue screen, then the looping startup blue screen, then... nothing could not get it to power up at all. I got on some online forums and read about baking the MOBO. Since my phone was bricked and about 18 months old, I figured, what do I have to lose? I didn't think it would work, but I was desperate. I removed the MOBO and baked it in a Pyrex dish at 360 degrees for 10 minutes. Took it our and let it cool, reassembled the phone and it has worked great ever since. It was a very counter-intuitive thing to do, but the whole reflow thing makes sense when you think about it. Still, I'm getting a new phone.

350 for 10 got my G3 going again after the blue screen. Going on a week now : ) Thanks!
Follow up... Died at 3 weeks got a v20

Baking the motherboard on the phone sounds ridiculous but it worked for me. I removed the 12 screws, pulled the board and baked it. Remember the short screw goes next to the lens. Phone is still working after 4 days but I have ordered a newer phone.

So I did not believe a second it could work, but as the blue screen of death happened to me 2 days ago... As I ordered a OnePlus3T, what did I have to loose???
So I baked !!!
And my G3 is back !
Maybe it is only about reconnecting properly the 4 connectors, maybe it's the baking... but hell, it worked !

even thinking of trying that for my sim card issues...

Hi! Um I had vertical lines on my G3 32gb and I put it in the oven for 10 minutes on maybe around 170-180 celsius or maybe a little more than that and after it cooled down I put it back together and it won't power on or charge...it's just black...soooo did I completely kill it or is it fixable...the CPU and memory is getting hot when plugging the phone into the wall socket...Thank You!

venoms2k said:
Hi! Um I had vertical lines on my G3 32gb and I put it in the oven for 10 minutes on maybe around 170-180 celsius or maybe a little more than that and after it cooled down I put it back together and it won't power on or charge...it's just black...soooo did I completely kill it or is it fixable...the CPU and memory is getting hot when plugging the phone into the wall socket...Thank You!
Click to expand...
Click to collapse
You most probably totally melted and killed it.
You should never put a phone/motherboard in an oven.
There was a thread about this here just a few days ago...

From the threads I have read sometimes it works, sometimes you kill it. But from pretty much what everyone has said that has done it, it is a temporary fix. I bought a brand new unlocked D851 motherboard on aliexpress and replaced mine. It cost me $95.00 but to me it was worth it to basically get a new phone. I figure the first board lasted me over 2 years and I paid over $700 for the phone. $95.00 more to last me 2 years or until I decide to get a new phone seemed worth it to me.

ijr150821 said:
Sometimes I do brilliant things, but this takes the cake. My G3 was having charging issues - wasn't charging at all. It looked like one of the connectors on the charging port was broken. So a friend tells me that his brother puts his damaged motherboards in the oven to reflow the solder. So, like a dummy I look around online amazed at all the success stories, take my phone apart, and carefully cook my motherboard for supper.
I did 385F for 8 min, waited 20+ min to cool, wrapped everything except the charge port in foil, all that. So when I put it back together....nothing. Occasionally a blank blue screen appears then goes away.
So, cam I do anything to bring back this phone that was awesome before a lost my head?
Click to expand...
Click to collapse
It worked for my G2 D802. I was totally surprised...
The problem is that during manipulation I managed to dislocate a tiny Smd capacitor C5004. Does anyone know how to solder it back? It's about half mm width... )

It works- 360 degrees for 10 mins, placed on tin foil on baking sheet, and then let it cool on top of stove for 35 minutes

I backed,
think my toaster wasnt very hiqh quality - might have used incorrect power
anyway, motherboard is dead - make sure your oven temp control is presice! do not go above 160C

Now I am going to bake the hell out of my dead note 4! Only if I get oven somewhere.

:laugh: :laugh: :laugh:
This is a good thread to stop by when you need a good laugh. If you read it on the internet, it must be true! :laugh:

carlosgap5 said:
even thinking of trying that for my sim card issues...
Click to expand...
Click to collapse
it's been a while since you have posted your comment, but did you try to reflow your phone? mine has a problem with the SIM card and i tried every other solution except for this.
not sure if i should try this and risk damaging a phone that could otherwise be used for multimedia purposes.

Downgrading from MM D850

Hey everyone, my last LG G3 just crapped out on me, I had the screen flickering issue that just got worse and rendered the phone unusable. Now I ordered a Refurb from Ebay but I am getting may 3 minutes at first of use then it restarts, then I eventually only get 1 minute before it restarts, this happened out of the box. I already contacted the seller, but while I'm waiting I'd like to try to see if its a software issue and downgrade the phone using the LG Flash tool with the dll and tot files. I've done it many times before with no issues but now it fails every time. Is this caused by the phone running Marshmallow? Is there any work around or can a root and get TWRP on the D850 so I can try to flash a custom ROM? Thanks!

I've been dealing with this for over a year. I first used my warranty and got a new one (or refurbished one idk) and then that one is giving the same exact problem now. If you look online there's loads of people with the same problem and a few proposed solutions none of which seem to work for everybody.
I first tried the connector on the camera trick. It worked for about one day.
Then I tried installing a thermal pad beneath the processor+thermal pad. It worked for a few days.
Then I saw people were baking the motherboard at 350 degrees for 10m and then letting it cool in the oven for 30m that worked for about 2 weeks. I also added the thermal pad cause I'm sure the overheating is what's causing this.
Since that was the longest solution, I've stuck the motherboard in the oven twice now cause the problem keeps coming back.
Today it came back again actually and I placed the phone between my palms right where the processor is and pressed with some force and the problem went away.
I've heard of one more solution which seems the most logical and I haven't seen anyone say it doesn't work: melting soldering paste around the processor using a heat gun as this makes the connections work again.
Sadly I don't have a heat gun and the local phone repair guy wants to charge me $30 so can use his so for now I'm gonna keep sticking it in the oven lol
My theory at least in my case is that the overheating loosens the connections over time and that causes the screen to flicker. That explains why when I bake it, it works the longest. The connections were "melted" back into place. Everytime the problem comes back the phone has been running extra hot.
If you try the soldering paste solution let me know how it goes.
My plan is to root my phone and do the temperature mod + the soldering paste. I'm having trouble rooting my phone for some reason tho.
Sent from my LG-D850 using Tapatalk

That phone is done, I tried the heating with the solder flux and must have heated it too much because now I get nothing. This refurb phone I bought on ebay is rebooting on me now after a minute of use, but won't reboot if its idle. I'm trying to get it back to lollipop to see if it is the software but it keeps failing when using the LG Flash Tool, so I'm assuming I cannot but hoping I'm wrong. I tried the swapping out the batteries that I've been reading but that doesn't work.
Ruffio_ said:
I've been dealing with this for over a year. I first used my warranty and got a new one (or refurbished one idk) and then that one is giving the same exact problem now. If you look online there's loads of people with the same problem and a few proposed solutions none of which seem to work for everybody.
I first tried the connector on the camera trick. It worked for about one day.
Then I tried installing a thermal pad beneath the processor+thermal pad. It worked for a few days.
Then I saw people were baking the motherboard at 350 degrees for 10m and then letting it cool in the oven for 30m that worked for about 2 weeks. I also added the thermal pad cause I'm sure the overheating is what's causing this.
Since that was the longest solution, I've stuck the motherboard in the oven twice now cause the problem keeps coming back.
Today it came back again actually and I placed the phone between my palms right where the processor is and pressed with some force and the problem went away.
I've heard of one more solution which seems the most logical and I haven't seen anyone say it doesn't work: melting soldering paste around the processor using a heat gun as this makes the connections work again.
Sadly I don't have a heat gun and the local phone repair guy wants to charge me $30 so can use his so for now I'm gonna keep sticking it in the oven lol
My theory at least in my case is that the overheating loosens the connections over time and that causes the screen to flicker. That explains why when I bake it, it works the longest. The connections were "melted" back into place. Everytime the problem comes back the phone has been running extra hot.
If you try the soldering paste solution let me know how it goes.
My plan is to root my phone and do the temperature mod + the soldering paste. I'm having trouble rooting my phone for some reason tho.
Sent from my LG-D850 using Tapatalk
Click to expand...
Click to collapse

LG G3 D855 Screen flickers and fade to darkness

Hi and thank you for checking my thread
I have a problem with my G3 as described in the tittle, I did the Paper trick I saw on YouTube but sadly it didn't work
After a while I found out that placing a piece cut from Credit card under the CPU might work and I did , but one week later I had the same problem, likely I can just click sleep button and it returns to normal
After these many problems I decided to give up on it and sell it, but I need a permanent Fix so I don't get involved in Cheating
Also , does replacing motherboard will fix the issue ?
Does G4 Worth it now ? I know about bootloop problem

Probably is a bad motherboard
When my G3 finally died (digitizer went bad), I just replaced it with a used G4 for $150. That was like 6 months ago. The phone has been phenomenal. I know there is many who say that every G4 will bootloop eventually, but I really don't see how thats possible if you just browse google for the issue. Yeah, a lot of people had the problem, but if everyone did you wouldn't see the G4 still being sold at a ton of outlets, and you would see hundreds of links to the issue. I think there was a large batch of them that were bad... and they got past QC, but the vast majority of them are probably fine.

resinis said:
Probably is a bad motherboard
When my G3 finally died (digitizer went bad), I just replaced it with a used G4 for $150. That was like 6 months ago. The phone has been phenomenal. I know there is many who say that every G4 will bootloop eventually, but I really don't see how thats possible if you just browse google for the issue. Yeah, a lot of people had the problem, but if everyone did you wouldn't see the G4 still being sold at a ton of outlets, and you would see hundreds of links to the issue. I think there was a large batch of them that were bad... and they got past QC, but the vast majority of them are probably fine.
Click to expand...
Click to collapse
Replacing the Motherboard will fix the issue ?
Yea, i saw "1 month/year after" Reviews on youtube and no one montion the bootloop issue, people ask them in comments and they reply that the phone works normal with no issues
Thank you for replying dude appreciate it

I was skeptical at first, but by baking the motherboard in the oven did the trick for me. It has been a couple of hours now an no flickering, no black screen and no troubles. And i know i'm asking for Murphy to come and bite my as*, but as a little trick, i'd like to suggest before putting the mobo in the oven to try something: i have an old Akasa X4 cpu cooler which has metal fins which are removable. I took one of those things and cut a square a little bit smaller than the power IC to the right of the SoC and then cut another one the exact same size then stacked the two one on top of each other, making sure to not short any capacitor around the IC and then put the metal shield back, making sure to put pressure on the IC. Then preheated the oven at roughly 180 degrees celsius, then put the motherboard SoC face up into the preheated oven on three balls of aluminium foil, one at the bottom near the micro usb, and the others to balance the motherboard, like a BMW Isetta, and put the timer for 10 minutes. After these nervous 10 minutes, I took out the mobo and let it to cool at room temperature for ~30 minutes. And voila, now it works. I do hope that it is going to last, and i will be very careful with this phone, unlike the previous owner. Seriously, how can you put a freaking button (small one, from a shirt) between the SoC and the mid-frame? Crazy. And that's why i got it for ~8000 JPY (about 70 bucks).

Takadi said:
Hi and thank you for checking my thread
I have a problem with my G3 as described in the tittle, I did the Paper trick I saw on YouTube but sadly it didn't work
After a while I found out that placing a piece cut from Credit card under the CPU might work and I did , but one week later I had the same problem, likely I can just click sleep button and it returns to normal
After these many problems I decided to give up on it and sell it, but I need a permanent Fix so I don't get involved in Cheating
Also , does replacing motherboard will fix the issue ?
Does G4 Worth it now ? I know about bootloop problem
Click to expand...
Click to collapse
I had a similar problem for about two months. I tried the paper thing over the camera sensor and I felt like it helped some but the problem still continued. The screen would just slowly go dark with vertical lines running through it. All apps would still work in the background while this was happening. I could boot to TWRP and this problem never happened while in TWRP which was odd. Seemed like if it was a screen issues or hardware malfunction it would happen all the time. That's when I decided to just flash back to stock. I was thinking about getting the S8 anyways so what the hell. I flashed to stock 10B and took every single OTA. Took all night but I've been running stock for over a day now and the issue has not replicated itself one time since reverting back to stock. I was on RR Nougat and Fulmics when it happened prior. Has to be a root or Rom issue?

Pozman1 said:
I had a similar problem for about two months. I tried the paper thing over the camera sensor and I felt like it helped some but the problem still continued. The screen would just slowly go dark with vertical lines running through it. All apps would still work in the background while this was happening. I could boot to TWRP and this problem never happened while in TWRP which was odd. Seemed like if it was a screen issues or hardware malfunction it would happen all the time. That's when I decided to just flash back to stock. I was thinking about getting the S8 anyways so what the hell. I flashed to stock 10B and took every single OTA. Took all night but I've been running stock for over a day now and the issue has not replicated itself one time since reverting back to stock. I was on RR Nougat and Fulmics when it happened prior. Has to be a root or Rom issue?
Click to expand...
Click to collapse
Just wondering if your G3 is still functioning without the issue.
It really feels like a hardware issue but as you pointed out it didn't happen in TWRP... but like many, I encounter the issue when the phone gets a bit warm (>35C), so maybe TWRP and your stock android is not as hot as RR Nougat? Then again, I'm on MM when this happened...
Update: Actually the flicker n fade happened to me in TWRP while I was backing up. The temperature read about 60C.

I had bigger problems with my g3 and they started as follows
Problem 1. camera not being detected and crashing. 2. Reboot once a while which got worse over time. 3. Bluetooth sketchy and WiFi not connecting. 4. Sd card being ejected and mounted constantly. 5. Mobile data stopped working.
Solution: baked it in the oven 10min with cpu side up at 185c removed to cool 4 30min. Problems gone for the meantime.

This morning at work my D852 died with the exact same screen fades to black and would only stay on for at most like 10 seconds and would only come on again after the processor cooled enough. I came across this youtube video.
https://www.youtube.com/watch?v=UF1s4RCZAvc
Since I didn't have any copper foil tape, I substituted with Aluminum foil tape and placed the tape in the same places as detailed in the video. (copper works better than aluminum for heat dispersal)
My phone is now back to normal and hasn't shown any issues with the past 5 hours since I applied the fix.
UPDATE: My phone has worked perfectly for several days now until I turned on the GPS from Cell Tower to High Accuracy and it immediately started to die again. Once it cooled down I was able to get to the settings screen to turn off GPS and it went back to functioning like normal

How to fix
I tried the paper trick and it did not work. No need to replace the motherboard or the phone. The issue is just a bad connection between the motherboard to the LCD display.. Probably due to dirt (in my case, I found that quite a few places in my motherboard had corrosion buildup). Here is the fix...
1. Remove battery cover and Unscrew The back plastic from the base of the phone to get to the motherboard.
2. Disconnect all the connectors from the motherboard.
3. Scan the motherboard for anything unusual. (My motherboard had corrosion on several different places).
5. Clean any dirt or corrosion with lint-free cloth. (I didn't have one so I had to use a Q-tip).
*if needed, Dip the cloth in rubbing alcohol to assist in cleaning. make sure that the cloth is JUST BARELY Damp and not dripping, otherwise you will risk water-damaging the phone. If you use rubbing alcohol, make sure that you dry the spot right after you wipe it.
6. Once you have cleaned the motherboard, check the base of the phone and clean any dirt from here also.
7. Replace the motherboard, re-connect the connections, screw on the back, and put the battery cover back on.
Viola! Mine has been working like new for 4 days so far with no issues...
Takadi said:
Hi and thank you for checking my thread
I have a problem with my G3 as described in the tittle, I did the Paper trick I saw on YouTube but sadly it didn't work
After a while I found out that placing a piece cut from Credit card under the CPU might work and I did , but one week later I had the same problem, likely I can just click sleep button and it returns to normal
After these many problems I decided to give up on it and sell it, but I need a permanent Fix so I don't get involved in Cheating
Also , does replacing motherboard will fix the issue ?
Does G4 Worth it now ? I know about bootloop problem
Click to expand...
Click to collapse

So a permanent fix is a new motherboard or a new screen?

Fixing a dead LG G3 (D855) with a hair dryer

Hello people of the internet and most likely LG G3 users. Yesterday my LG G3 D855 died right when I was about to watch some good hentai. I’ve been having screen flickering for ages in the YouTube app and as of late the screen also started to fade to black from the corners, random reboots were also quite common. Android became unresponsive for a couple of seconds and then the screen when completely black in a split second. Tried a lot of things after that: removed the battery countless times, changed with an old battery, charged it for hours at the time (battery wouldn’t get hot so no charging), connected to my desktop. No Android, no TWRP, no bootloader, nothing could make my G3 do anything. I was convinced it became a paperweight. After that I proceeded to disassemble the phone. Disconnected all the ribbon cables of the cameras and the display etc and put them back in firmly. That did do anything. HOWEVER I remembered when I was wasting time reading toxic XDA comments and stuff that someone mentioned baking the device to restore connections between the motherboard and the SOC, or something like that. So I did some research and even though something as stupid as putting it in the oven actually seem to work for people. Mum wouldn’t let me put it in the oven so I made my own way of resurrecting my G3. This is what I did to get it back working:
I’M NOT RESPONSIBLE IN ANY WAY IF THIS GOES WRONG AFTER TRYING THIS. IT IS 100% YOUR CHOICE TO DO THIS OR NOT.
Requirements:
DISSEMBLING
LG G3
Screwdriver small enough to remove the G3 screws
Plastic prying tool (old credit card, solid thin plastic will do also)
Good light source
REVIVING PROCESS
Hair Dryer that can get a fair bit hot
The grill of an oven
Stopwatch
A floor that can withstand heat
A place that can be ventilated in case of toxic fumes (nothing happened for me)
Safety goggles (I didn’t have and so didn’t use)
Electrical fire extinguisher (I didn’t have and so didn’t use)
STEPS FOR MAKING AN UNDEAD PHONE:
1. Remove battery, SIM card, SD card.
2. Proceed to disassembling the phone to the state where you only have the motherboard. I used these guides:
https://www.ifixit.com/Teardown/LG+G3+D855+Teardown/42288
And
https://www.youtube.com/watch?v=sNymIdIXTyI
3. Place the oven grill on a surface that can withstand heat and then gently place your LG G3 motherboard on it.
4. The heating process:
1.
Turn on the hair dryer and start to focus the heat on the part of the motherboard that is facing towards you when you take it out. So not the part where you see the SOC. See image. Hold the hair dryer close to the motherboard (5 cm space or so) and do this for 10 minutes.
2.
Let it cool down for 5 minutes and turn it around.
3.
Proceed to heat the SOC for 15 minutes and let it cool down fully for a minimum of 15 minutes.
4.
But it back together, hope that luck is on you side and that it will turn on.
NOTE: First boot went all the way till android boot screen when it crashed with screen flicker. I removed the battery and waited a minute or two and tried it again and it has been working ever since yesterday night. This is probably not a long-term solution so I’d suggest just using this to get your data off you phone and moving on to another device as fast a possible.

EDIT: Like I said before use this method only if you find putting it in the oven is to risky. My phone has now stopped working. This really is a temporary fix for if you just want to backup you remaining data.

i have used G3 for last 3 years and its was still good phone in market ..ok to the point
i have 3 G3 and one i bought for experiments and i put in Oven and guess what it show some sparks and burn from botton pat of the board so dont ut in oven it can burn and ic on board .. heating through hair dyer is safe i think for noobs... thanks