Develop Bugs

Touchscreen Digitizer Issues?

So lately I've been having problems with my DI2. Occasionally, when I unlock, it appears to receive what it thinks is a touch at a lower portion, usually around the middle of the lower portion, of the screen, and this results in things like Home being activated, or the app drawer. This will happen even if no part of my hand is near the bottom of the phone (front, back, and sides).
More recently, it has become and indication of random touching on lower parts of the screen. I've had it completely freak out and type random stuff in input fields. When it gets really bad, the touchscreen stops responding, but I can lock and unlock to get it back, usually.
This has made typing in portrait mode quite difficult, and it's becoming very annoying.
Is my touchscreen digitizer failing, or is it possible there's some sensitivity adjustment I can make? Is it possible it's related to static or something and I can use a cleaning solution or something to correct it?
I really want to avoid paying a lot to fix this issue. I've already seen places where I can buy a replacement digitizer if that is needed, but it's not cheap. I'm really hoping this phone will hold out a lot longer than it is right now as it's been an otherwise good phone.

You may want to try recalibrating your screen.
Go to Settings > Language & keyboard > Touch Input > Text input > Calibration tool.

klabit87 said:
You may want to try recalibrating your screen.
Go to Settings > Language & keyboard > Touch Input > Text input > Calibration tool.
Click to expand...
Click to collapse
i think this only calibrates the keyboard. there is an .apk around somewhere that will calibrate the touch screen, some roms have it built into the settings.

andybones said:
i think this only calibrates the keyboard. there is an .apk around somewhere that will calibrate the touch screen, some roms have it built into the settings.
Click to expand...
Click to collapse
oh ok. gotcha. Makes sense

I'll see what I can find.

nimdae said:
I'll see what I can find.
Click to expand...
Click to collapse
If not just unroot and send it to vzw
Sent from my Incredible 2 using xda premium

Well, I'm not having much hope with calibration apps. This looks like a very device specific thing, which is understandable. Besides, it doesn't really feel like a calibration issue. When it's not going haywire, touch accuracy seems fine.
I'm not really keen on going for a replacement. Besides, my physical modifications (antenna improvement, improved access to power button, etc) may prevent that
If I can't find a cheap/free solution, I'll just jump on replacing the digitizer. This is not a task that bothers me, was just hoping someone came across this issue and found a better solution.

Harbor Freight has the hot air blower for $12.00.

This may be a dumb question but i didn't see you mention it. Did you try a factory reset? Perhaps you have an app or something conflicting with screen response somewhere in there.
Sent from my Incredible 2 using Tapatalk

I seem to have dead spots once in a while on my touchscreen. Doesnt really effect day to day usage but can be annoying when trying to click something. Like a link on a webpage, sometimes I will have to scroll up or down to move the link before Im able to click it.. spot seems to be centrally located but has happened in a few places.

MJL99 said:
This may be a dumb question but i didn't see you mention it. Did you try a factory reset? Perhaps you have an app or something conflicting with screen response somewhere in there.
Sent from my Incredible 2 using Tapatalk
Click to expand...
Click to collapse
Not a dumb question at all. I did not mention it, and it's completely valid. However, I have gone through a couple of full resets since the issue started, and the behavior has persisted.
In fact, I have tried a couple of different firmwares in the time it has started. I had thought maybe a build of CM7 might have caused it, but the ICS builds have the same behavior, as well as a couple other firmwares that I don't remember the name of offhand.

cac2us said:
Harbor Freight has the hot air blower for $12.00.
Click to expand...
Click to collapse
Can you elaborate?

mastamoon said:
I seem to have dead spots once in a while on my touchscreen. Doesnt really effect day to day usage but can be annoying when trying to click something. Like a link on a webpage, sometimes I will have to scroll up or down to move the link before Im able to click it.. spot seems to be centrally located but has happened in a few places.
Click to expand...
Click to collapse
For me, it's not an issue with dead spots. For one thing, the issue is intermittent and in varying degrees of severity. Usually when it happens it's just something at the bottom activates and I can cancel it out and carry on with my session. Occasionally, though, it just goes haywire, as though a palm is resting on it or something is touching random places rapidly.
So far I've been able to kill the haywire behavior by locking the display, wiping it down a bit, unlocking the display, then continuing on. I haven't had to take any more drastic measures than that. It's still annoying in that it can happen while typing a message and I have to go back and clean up the mess it leaves, or it might monkey around with an app.
It seems as though there might be some static buildup or something because it seems worst shortly after taking it out of my pocket. If that's the case, I wonder if I can ground it out, or do something to dissipate it.

nimdae said:
Not a dumb question at all. I did not mention it, and it's completely valid. However, I have gone through a couple of full resets since the issue started, and the behavior has persisted.
In fact, I have tried a couple of different firmwares in the time it has started. I had thought maybe a build of CM7 might have caused it, but the ICS builds have the same behavior, as well as a couple other firmwares that I don't remember the name of offhand.
Click to expand...
Click to collapse
Sorry i didn't notice you mention it anywhere. Fwiw i get lockscreen issues kinda like you describe. i use the slide lock on cm7 and when i go to slide right to unlock, before it gets to the dot the lock releases without me lifting my finger. I know i don't have a dead spot because it only does it on the lockscreen and relocking and waking the screen fixes it. Only happens on cm7 and why i thought it might be an issue like that.
nimdae said:
Can you elaborate?
Click to expand...
Click to collapse
If you need to replace the screen/digitizer you will need to heat up the glue to remove the screen. Normally a heat gun is recommended
Sent from my Incredible 2 using Tapatalk

Bro I just went thru the same thing same week. And I've tried all the suggestion here, in the end it was the digitizer. I call Verizon and explain the problem and they are sending me another Dinc2. It sucks cause now you have to unroot and restore (s on) (which for me was a bit of a *****) to send the phone back , but trust me at some point the entire bottom part of your screen will not respond to touch.. You'll only be able the answer calls from the lock screen and to hang up you'll have to do so thru the pulldown bar. And the biggest problem will be you won't be able to access your key pad. Sorry bro but thoses are the facts....I'm waiting for the replacement as I type this.

MJL99 said:
If you need to replace the screen/digitizer you will need to heat up the glue to remove the screen. Normally a heat gun is recommended
Sent from my Incredible 2 using Tapatalk
Click to expand...
Click to collapse
It's not held in with a normal ribbon cable lock? It would be strange if they used a glue. I've been inside many of these devices in the past going back some 10 years (including at a repair center) and didn't face glued ribbon cables (either solder or ribbon cable lock).

nimdae said:
It's not held in with a normal ribbon cable lock? It would be strange if they used a glue. I've been inside many of these devices in the past going back some 10 years (including at a repair center) and didn't face glued ribbon cables (either solder or ribbon cable lock).
Click to expand...
Click to collapse
They are held in with a ribbon cable lock but the screen and digitizer are glued onto the phone itself, like the metal part that holds all the parts

So I wasn't able to find a software solution. Not sure what's causing it, but it's causing some unwanted issues (hang up call and it immediately calls someone else based on a false touch). I ordered the parts I need and will report if this fixes my problems.

nimdae said:
So I wasn't able to find a software solution. Not sure what's causing it, but it's causing some unwanted issues (hang up call and it immediately calls someone else based on a false touch). I ordered the parts I need and will report if this fixes my problems.
Click to expand...
Click to collapse
Where did you order from, how much did you pay?
Be sure to watch both of those vids on utube.
I live where the relative humidity is around 15% most of the time.
Still I notice that when I pull my phone out of my pocket, it has moisture all over the back where it was pressing against my leg.
I found putting it in a soft cover pouch keeps most of that under control.
Just for the heck of it , try putting the phone in a jar of un cooked rice for a few hrs.
Battery and cards removed, jar sealed tight.
If you have another phone to transfer your calls to that would be better.
If you are like me and your skin oil transfers to your phone allot, use a fine tooth brush around the area where the screen meets the housing.
Avoid pushing any debris further into the unit. Use brisk outward strokes.
If none of that produces any favorable results, look for a hot air gun or a blow dryer.
Keep us updated...

cac2us said:
Where did you order from, how much did you pay?
Be sure to watch both of those vids on utube.
I live where the relative humidity is around 15% most of the time.
Still I notice that when I pull my phone out of my pocket, it has moisture all over the back where it was pressing against my leg.
I found putting it in a soft cover pouch keeps most of that under control.
Just for the heck of it , try putting the phone in a jar of un cooked rice for a few hrs.
Battery and cards removed, jar sealed tight.
If you have another phone to transfer your calls to that would be better.
If you are like me and your skin oil transfers to your phone allot, use a fine tooth brush around the area where the screen meets the housing.
Avoid pushing any debris further into the unit. Use brisk outward strokes.
If none of that produces any favorable results, look for a hot air gun or a blow dryer.
Keep us updated...
Click to expand...
Click to collapse
I've worked in microelectronics in the past and know quite a bit about moisture control, static control, etc. I had to help manage a sizable clean room at one point.
Unfortunately it's possible that my digitizer is just flawed and the flaws are just now coming out. I don't think it's moisture, but rather most likely electrostatic. I live in a rather dry place.
I normally would not use a screen protector, but I might consider it now as it might add an extra layer of insulation from static in my pocket.
The digitizer I found was from a seller on Amazon. For all of the parts needed (I don't have the tools for properly working on this device), including the small double sided tape, I spent around $32.
The double sided tape comes in a big roll so if anyone else needs to do this kind of repair, I will ship the remaining tape for the cost of shipping (this should save you about $5).

I HAVE FOUND A SOLUTION FOR THE LG G4 BOOTLOOP ISSUE *Story & Tutorial*

Basically what happened, was on Friday, my phone got stuck in a boot loop. It would get to the "Optimizing Apps" screen and shut off again. Other people may just get to the Verizon screen, or even just the LG screen. I looked it up and found that it was a major issue affecting many people, so I just filed for a warranty and received my new phone today. Well, on Saturday night LinusTechTips, a popular tech YouTube channel(You should really check them out, they are great), released a video on how they fixed a dead Graphics Card and PCI-E SSD by heating them up past the melting point of solder and then testing them. For them, it only worked on the GPU. As I was packing up my seemingly dead phone to ship back to LG TODAY, i decided to give it one more shot. I disassembled the device to the point where I could take out the logic board. I took the logic board and wrapped it in one layer of parchment paper and two layers of tinfoil, shiny side facing in(FYI tinfoil has two sides, shiny and matte). I then placed this package into a barbecue. I turned on the left and middle burners and left the package with my logic board inside on the right side to the grill so it wasn't receiving direct heat. After 10 minutes, I took it out, re-assembled my phone and it booted. I was able to get all of my pictures off of it. This has only been confirmed to work on my phone, but seeing as this SAME issue is affecting thousands of people, It's definitely worth a shot. If you are going to use an oven, PLEASE, make sure it's above 385 degrees Fahrenheit and that you don't plan on using that oven for food ever again, this may release some toxic chemicals etc. I plan on using my grill again, so I just made sure to leave the grill open for 24 hours and I'm going to clean it before I use it next. If you have any questions let me know!
P.S. My LG G4 was the Verizon model.

I highly recommend doing this ONLY if you have no other option. Remember that heating a logic board to high temperatures can release toxic fumes. Don't use an oven you use for food preparation! Toxic fumes can leave residue in the oven and will be re-released upon reheating over many cycles!
Assuming LG's press release regarding the issue is correct and it is really a loose contact, this "fix" could actually work. Of course, only if the loose connection is a soldered connection. Though, it's controversial. You have to remember that the melting point for SMD solder is around ~350°C, or 662°F. So 358°F, or 181°C, is not nearly enough to actually re-solder a loose connection. My guess is that the loose solder point is only expanding due to the heat. There is no real reconnect. It might only be a matter of time until it also breaks. If you could locate the actual loose connection you could really re-solder it and have it fixed permanently.
I've done this on many many devices, including graphics cards, smartphone logic boards, PC mainboards etc. It only works if a soldered connection has a crack small enough that heat expansion is enough to gain reconnection. If there is a loose contact on the PCB or the "crack" in the solder is too big, it does not work. Also, if you really have a dead chip, this trick also won't (always) work.

I read a similar story on reddit. The guy put his main board in the oven, reassembled it, and the phone started working. The last update I read was 3 days later, still working.

I fixed mine temporarily by heating up the emmc chip using solder hot air gun. It seems to be just the emmc chips connection.
Failed again after a fortnight when the phone got too hot. The connection seems to break when the g4 gets hot.
One option to try is to boot the phone inside a freezer. I found that worked too.
Pretty poor quality control on lg's part.
I'm going to try again and see if I can fix permanently.

Worked for me too
I have a LG G4 H815 with serial number starting with 507. It died yesterday night. The bootloop escalated quickly to full death. Even the freezer trick did not work.
I followed the OP instructions. I heated up the grill to ~250 degrees Celsius and cooked the motherboard for 10 minutes.
Magically the phone has been working for a couple of hours since and I have been able to backup files to the external SC card.
I wonder how much more will it work.
Thank you for help OP!!!
Word of advice to other LG G4 users. Backup your phone regularly. Use an external SD card. Set the camera to save images and videos to the SD card. At least at doom day you will have them saved.
Cheers

Silverdace said:
I'm going to try again and see if I can fix permanently.
Click to expand...
Click to collapse
any more info on this? Looks like my phone bit it the other day, no boot...just dead...
I'm going to take her apart to see if I can find a bad solder, luckily I still had my G2 lying around.

NFN, I sent mine back to LG US in Texas for a full warranty repair. 10 days RT, no cost at all, shipping included.

No unfortunately. I managed to overcook it and it stopped booting altogether

Do you have the address and info Re your communication w/ lg
metropical said:
NFN, I sent mine back to LG US in Texas for a full warranty repair. 10 days RT, no cost at all, shipping included.
Click to expand...
Click to collapse
Do you have the address and info Re your communication w/ lg, I'd like to send mine back for repair due to this same issue.

http://www.lg.com/us/support/repair-service/schedule-repair-us
they did a **** job. touch screen peeling and failing. Phone slowing down again after about 6mos. Looking for a new phone, but the choices are so limited.

My phone is 2 years 4 months old....never bootlooped
Feel bad for u guys

deltadiesel said:
My phone is 2 years 4 months old....never bootlooped
Feel bad for u guys
Click to expand...
Click to collapse
Mine made it just about the same but died from other causes.

deltadiesel said:
My phone is 2 years 4 months old....never bootlooped
Click to expand...
Click to collapse
What is the beginning of your phone's serial number?

Hi bro kindly tell is it worth to install custom rom kernal with root to prevent the cpu to clock high speed so it will not go into bootloop? My is also 2 years old thanks

250 degrees F for 6 minutes and brought the phone back to life. We'll see how long it lasts.
Actually it worked on BOTH G4s I have. I first just went dead and I bought a used one for $100 on eBay and it worked fine until the bootloop showed up.

Screen flickering fix SUCCESSFUL!!!

Hello everyone,
I've had my G3 D855 which I have been using for 16 months. Bought it brand new on eBay and everything was going well until a month ago when the screen flickering began.
Tried every trick on YouTube or Google but from last week, it got so bad that I'll be lucky to have it working for 5 minutes in 24 hours.
Being a tech enthusiast, I decided to take the bull by the horn. I decided to either end up fixing it or giving it a proper burial.
After careful and logical study of hardware and software, I reached a conclusion that the problem is hardware related.
Which took me to options like ambience sensor, screen connector, battery, processor among others.
Started by eliminating the suspects from the ones easier to handle like battery, inspection of screen connector and flex etc.
SOLUTION
I do recall that many people recorded success with using paper or any other thing to press down the connectors for camera and ambience/proximity sensors (which in turn adds pressure to the big chip at the back(processor).
Since my phone has fallen countless times (at times from a distance), I assumed some components must have partially detached from the motherboard and cause the issue.
So I got a friend's soldering rework station heat gun and soldering paste.
1. Applied paste to the two connectors for the screen as shown on the first image below and reheated them properly then allowed it to cool.
2. Applied paste generously to the main chip(processor) as shown on the second image below and fired it up before letting it also cool down.
Remember that my screen refused to open throughout the day, haven't been able to use it for almost three days. Once I coupled it and started, walah! :laugh:
Not a flicker, not even once and I'm 13 hours still counting but I believe the problem has been fixed (fingers crossed lol) + I used the phone to type and send this.
I advise you try it but be careful not to shift or move the components being heated so as not to displace them and also reach out to as many people as possible cos there are thousands with the issue and I didn't make a video for YouTube as I didn't know it'll work.
So, good luck to you all:good::good::good:
NB:
Just posted a VIDEO https://youtu.be/tP0ds01ML9I
Please if this works for you or someone else, do leave a comment. Also, if you run into any issue(s), let me know so we'll work it out.
Don't know if the moderators can care to make this thread sticky, it's too valuable to be buried down the heap...

So maybe this flickering issue is due to CPU/GPU overheat, thermal paste appliance seems to be a good option... I'll get my hands on a G3's motherboard with this issue and apply this mod. Will post the results :good:

siredux said:
So maybe this flickering issue is due to CPU/GPU overheat, thermal paste appliance seems to be a good option... I'll get my hands on a G3's motherboard with this issue and apply this mod. Will post the results :good:
Click to expand...
Click to collapse
Not just putting thermal paste but heating the processor back is the key

My advise to those who don't have heat gun or soldering paste is to go to any good technian who has a heat gun in his workshop and let him do it for you. Just show him the places and give him something when he's through. If he's a phone repair person, all the better as he'll know the best technique to apply.

People have had success baking the motherboard in the oven for 10 minutes to fix potential soldering issues with components. At the moment I have used the piece of paper method and it has worked great but will need to use a more permanent method as I plan on selling it.

I've tried the paper method on the adapter near the camera, and, now the display works fine , but my wifi signal strength is lowered. I used to get an excellent signal strength on using wifi at any rooms in my home but now I get excellent signal strength only when I am using wifi near my router.

This sounds very promising and I'm very eager to try this! But I am unfortunately confused, where exactly am I putting the paste on these 3 parts?

Pieddog said:
This sounds very promising and I'm very eager to try this! But I am unfortunately confused, where exactly am I putting the paste on these 3 parts?
Click to expand...
Click to collapse
You'll put the paste over the connectors and the edges where the connectors are soldered to the motherboard then heat.
As for the processor, you put a good amount right on it & as you heat the processor, the paste will melt and drop on the side of the processor to enhance the contact with the motherboard.
ie. You'll put the paste right in the area I circled with red on the attachment pics above.

zayidhs said:
You'll put the paste over the connectors and the edges where the connectors are soldered to the motherboard then heat.
As for the processor, you put a good amount right on it & as you heat the processor, the paste will melt and drop on the side of the processor to enhance the contact with the motherboard.
ie. You'll put the paste right in the area I circled with red on the attachment pics above.
Click to expand...
Click to collapse
Hmm okay thanks, I'll have to go buy a heat gun, they seem pretty cheap. Hopefully I can get this done over the weekend, will report back

siredux said:
So maybe this flickering issue is due to CPU/GPU overheat, thermal paste appliance seems to be a good option... I'll get my hands on a G3's motherboard with this issue and apply this mod. Will post the results :good:
Click to expand...
Click to collapse
Check out the video

burgess_boy said:
People have had success baking the motherboard in the oven for 10 minutes to fix potential soldering issues with components. At the moment I have used the piece of paper method and it has worked great but will need to use a more permanent method as I plan on selling it.
Click to expand...
Click to collapse
Check out the video

Pieddog said:
Hmm okay thanks, I'll have to go buy a heat gun, they seem pretty cheap. Hopefully I can get this done over the weekend, will report back
Click to expand...
Click to collapse
Check out the video

Salman4701 said:
I've tried the paper method on the adapter near the camera, and, now the display works fine , but my wifi signal strength is lowered. I used to get an excellent signal strength on using wifi at any rooms in my home but now I get excellent signal strength only when I am using wifi near my router.
Click to expand...
Click to collapse
Check out the video

zayidhs said:
Check out the video
Click to expand...
Click to collapse
please share the link to video ??

what video? did anyone try this method tho and it worked or not?

Salman4701 said:
please share the link to video ??
Click to expand...
Click to collapse
The link is in the post, I added it

Youssef mo7a said:
what video? did anyone try this method tho and it worked or not?
Click to expand...
Click to collapse
Check the link in the post. Only 6 people have tried with 100% success. They all gave me feedback

https://youtu.be/tP0ds01ML9I

i'm going to subscribe this thread for my future references if my G3 does flickering too..
thanks for sharing this useful tips anyway
Sent from my LG G3 F400L using your data connection.

zayidhs said:
Check out the video
Click to expand...
Click to collapse
Thanks mate, will do!

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?

G3(D855) Blue screen error

I went to my technician already twice but the blue screen keeps coming back. I need to go back every week as the technician heats the soc with some paste I suppose. After one day of usage it goes back to blue screen then the phones becomes dead. Is there any fix for this? :crying:
Thank you for the help guys.

Replace the motherboard or heat it up with a iron

Motherboard is quite expensive. Do I need to put thermal pads as this heating method seems to fix the error temporarily.

Hiyaslalabs said:
Motherboard is quite expensive. Do I need to put thermal pads as this heating method seems to fix the error temporarily.
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Click to collapse
Yes definitely try putting thermal pads or plastic. Heating the motherboard is only a final temporary solution, most useful for just backing up data off the device.

engmia said:
Yes definitely try putting thermal pads or plastic. Heating the motherboard is only a final temporary solution, most useful for just backing up data off the device.
Click to expand...
Click to collapse
So if I put a thermal pad how long would the device work?Thanks

Hiyaslalabs said:
So if I put a thermal pad how long would the device work?Thanks
Click to expand...
Click to collapse
I don't know.
It might work for a long period of time, it might not.
If it works you can hope for the best and if you want to prolong the life of the phone, make sure you are not stressing the phone and using it while overheated.

engmia said:
I don't know.
It might work for a long period of time, it might not.
If it works you can hope for the best and if you want to prolong the life of the phone, make sure you are not stressing the phone and using it while overheated.
Click to expand...
Click to collapse
One thing I noticed also when I did the paper trick by putting a piece of paper on the left side of the camera the phone works for awhile too. Any reason for this why it works?

Hiyaslalabs said:
One thing I noticed also when I did the paper trick by putting a piece of paper on the left side of the camera the phone works for awhile too. Any reason for this why it works?
Click to expand...
Click to collapse
The problem is caused by bad quality solder and a phone that tends to go very hot. If you use your phone often while hot, the bad quality solder with the chip mess up after a while and causes you to lose connection.
The pressure you're putting with the paper clip or plastic helps restore the connection by pressing on the chip.
Thermal pad is best since it helps with the cooling also. Avoid metal since they conduct electricity and might interfere with the radio signals.