I want to fix the G4 boot, I'm no professional at this, I've tried heating the CPU with a hair dryer, it works for few minutes, then it goes back to bootloop again. I've put my phone infront of hairdryer for 10 minutes, then placed a small paper in front of the CPU and inbetween the tin heatsink, the phone boots up, i put up my email information, and other info, then after few minutes(before going to homescreen) it goes to bootloop.
Now, I want to take it to a mechanic, I want to know which part should I remove and resolder it back? Should I remove the CPU and place it back and solder it again?
anyone? It's kind of an emergency here. @interlitpol
It's dead, Jim.
You'd need a reballing station, and the knowledge on how to work on it, in order to half-assedly temporarily fix it.
The only way to fix it is to remove the SoC and memory, insert new soldering spots and use the reballing station to solder it back. It's an expensive procedure (I believe you can buy 5 new G4's with the price of this procedure alone) and not really worth it.
If your phone's already resetted and there's no important info on it, just put it in a drawer and curse it from time to time.
I'd say to contact LG, but you've already opened it and messed with the hardware.
If there's something important on your phone that you wish to retrieve, put it in a ziplock bag and leave it overnight on a freezer. That might allow you to turn the phone on for around 20 minutes, which should be enough.
Related
A piece of advise, don't take your one V with you when you go skiing...
I did. And the water condensated inside my phone. When i got home i turned it off and placed it into a jar of rice, because it should help the water to evaporate quicker, or something like that, tried to turn it on after 2 days, it turned on, but there was a water still visible under the screen, so i turned it off again, but it started to heat up, so i had to take it to a technician to disassembly it so that he could remove the battery, but the main board got damaged, so my phone is probably done. Unless you know where to get a cheap board shipped worldwide, I'll have to start saving up, either to buy another one, or to buy Desire X?
Hey guys, I have a LG G4 and it's begun to bootloop. I'm sending it into repairs soon but I have contacts and some pictures I want to backup before I send it in. (It gets reset during the repair).
I just want a select amount of pictures 100-200 which I want to just select to upload to google photos, and then move my contacts to my SIM card. That's it. The rest can go. But my phone won't turn on (obviously).
Is there ANY way I can get my phone to turn on and stay on for JUST 20 minutes. PLEASE HELP. I'd honestly love you forever. Thanks!
(I've tried the freezer method and it turned my phone on for about a minute untouched, but as soon as I start to select which photos to back up, it just freezes and turns off).
Minchan_5 said:
Hey guys, I have a LG G4 and it's begun to bootloop. I'm sending it into repairs soon but I have contacts and some pictures I want to backup before I send it in. (It gets reset during the repair).
I just want a select amount of pictures 100-200 which I want to just select to upload to google photos, and then move my contacts to my SIM card. That's it. The rest can go. But my phone won't turn on (obviously).
Is there ANY way I can get my phone to turn on and stay on for JUST 20 minutes. PLEASE HELP. I'd honestly love you forever. Thanks!
(I've tried the freezer method and it turned my phone on for about a minute untouched, but as soon as I start to select which photos to back up, it just freezes and turns off).
Click to expand...
Click to collapse
use the freezer method. search i think its on h811 section.. just follow instructions and make sure no moist can get to phone.
Minchan_5 said:
Hey guys, I have a LG G4 and it's begun to bootloop. I'm sending it into repairs soon but I have contacts and some pictures I want to backup before I send it in. (It gets reset during the repair).
I just want a select amount of pictures 100-200 which I want to just select to upload to google photos, and then move my contacts to my SIM card. That's it. The rest can go. But my phone won't turn on (obviously).
Is there ANY way I can get my phone to turn on and stay on for JUST 20 minutes. PLEASE HELP. I'd honestly love you forever. Thanks!
(I've tried the freezer method and it turned my phone on for about a minute untouched, but as soon as I start to select which photos to back up, it just freezes and turns off).
Click to expand...
Click to collapse
When I used the freezer method I would wrap it in paper towels(to absorb any condensation of water) and then in plastic wrap to make air tight. I would then leave it for several hours. On the first try I managed to get it to work for maybe 10 minutes and next tries didn't really work.
What worked best for me was the method where you heat up your phone with a hair dryer. Take off the back cover and remove the battery and then heat it up with the hair dryer until it gets very hot, around 3 minutes (depends on how close and how hot your hair dryer gets). I mostly applied the heat on the top half of the phone. Be careful with this method, the phone needs to get very warm but not to warm that you damage it. You can find youtube videos where they demonstrate this method.
Craxie said:
When I used the freezer method I would wrap it in paper towels(to absorb any condensation of water) and then in plastic wrap to make air tight. I would then leave it for several hours. On the first try I managed to get it to work for maybe 10 minutes and next tries didn't really work.
What worked best for me was the method where you heat up your phone with a hair dryer. Take off the back cover and remove the battery and then heat it up with the hair dryer until it gets very hot, around 3 minutes (depends on how close and how hot your hair dryer gets). I mostly applied the heat on the top half of the phone. Be careful with this method, the phone needs to get very warm but not to warm that you damage it. You can find youtube videos where they demonstrate this method.
Click to expand...
Click to collapse
Was there any water damage that happened?
Minchan_5 said:
Was there any water damage that happened?
Click to expand...
Click to collapse
I don't know where the water damage indicators are located on the G4, so I haven't checked.
When I only put it in a ziplock I would feel some water condensation on it. But when I removed the back cover and battery and wrapped it tightly with papertowels and plastic wrap I wouldn't feel any water condensation.
If you manage to get it to start with the freezer method then you could try to leave the phone inside the freezer while you have it plugged in into your computer with a usb cable. Maybe that could prolong the time it works. Because it gets warm rather quickly after you take it out and start it up.
Disclaimer: I am just stating what worked for me, so if anyone's warranty is dismissed, or phone further breaks, it is not my fault.
Hey guys, so my phone started bootlooping about a month ago, but I have my warranty still so I am eligible for a G4 repair, (as well they agreed to fix my G2 from two years ago). Anyways, the problem is I didn't have some contacts, pictures, etc.. backed up so I needed my phone to function for about 20 minutes to back them up. I tried the freezing method, every button combination possible, even held the power button down for 10 minutes. Nothing worked. Until I found this reddit comment from a while ago.
https://www.reddit.com/r/lgg4/comments/3vsebk/retrieve_data_from_dead_g4/
The comment by.. uh... "Irapedyourcat" about heating the phone helped me. Now I used a hair dryer instead, and basically followed this video tutorial. It isn't the greatest, and one of the videos is 40 minutes long, but I skipped through most of it and you really don't NEED to watch it. He just mentioned some bumps you can experience and decently described the steps.
https://www.youtube.com/watch?v=TkMhaLryn-A
https://www.youtube.com/watch?v=uN6baDuozms
So I'll just go over the steps of what to do and what materials you need.
Materials:
- Hair Dryer
- The phone -_-
Steps:
- Take the battery out of the phone and be ready to put it in. (Keep nearby and away from the hot air of the hair dryer)
- Plug in the hair dryer and expose the back of the phone with the back cover off.
- Watch the time for about 3-5 minutes. Don't go over I would say 6 minutes.
- Slowly start from the bottom left corner of the phone, and move up to the top part of the battery hole. (Don't go over the buttons).
- Then from there move a little to the right, then move back down slowly. You want to leave about a pinky's length from the phone to the hair dryer.
- Just keep zigzagging until you reach the bottom right. Then go up to the top right corner, to the right of the camera, and heat that area for a little bit, definitely a shorter time than the bottom area. Then skip the camera and then move to the top left area.
- After you do that about twice, or for about 4 minutes, feel the phone. It should be really hot. Like enough to go "Ow!" Not jerk your hand away or it'll burn you hot but maybe a window of a car left in the sun in an empty parking lot for a while.
- Once you feel the temperature is right, (I'm not sure if this helped or not, but I did this process twice and the time where I did this the phone turned on for a longer period of time), focus your hair dryer solely on the 4 little gold things that your battery connects to. https://ibb.co/cKSnQa
- After you do this, turn the dryer off, and put the battery back in
- Start your phone, and once the logo shows up, plug your phone into the computer. (Or if you don't use PC, you can just use the phone and put it into a SD card, or use a cloud service. Personally I think the phone can stay on longer if you just control everything from computer but whatever works. If you DO choose to use a computer, make sure to click "allow" when it asks for access.)
- Back up away! If the back up is taking a long time and the phone starts to cool down, what the guy in the video did, and me too, I heated it with the dryer for about 5 seconds at a time, just on the bottom half of the screen and some of the sides.
One thing to mention is that the phone does get really hot. That's the point, it has something to do with "melting" the cicuit board and some connectors together or something??? I'm not really sure so if someone clarifies that, that'd be pretty cool. Anyway you will get warnings that 1) your phone is at a very high temperature and then 2) that if the phone gets any hotter the phone will shut off. (That's what happened when I heated it too much while it was backing up because the phone was starting to cool down so just do it for 5 seconds every minute or so!) https://ibb.co/nrfwJv
I'll mention again that this could work or could not work. This is pretty risky, I'm not gonna lie, but if done properly, you'll probably have a good chance of succeeding. The reason I'm posting this is because I kept thinking "what if I saw this right after my phone started bootlooping?", and it would have made my life so much easier if I found this way.(I've been without a phone for 3 weeks, just needing to send it in for repairs, but feeling that I could somehow manage to back up my files, but I didn't have a way). So I decided to not be lazy and write this. It's less risky than "baking" it, so if you're considering that, then try this first. Hopefully no one made a post exactly like mine because that would suck because I'm super tired right now but I hope this at least helped one person. Thanks and good luck!
Hey guys,
So i flooded my phone, dried it, left in rice for 2 days and now when i connect it to my charger the screen goes up after a minute or so but its not charging. My screen shows battery icon with a bolt inside and a zero below, or battery with a cable inside and zero below. Any idea what can i do to fix this? I can boot to bootloarder mode, but when I'm trying to boot to recovery/other modes it goes back to 'charging screen'.
Thanks in advance!
The battery is eeprom controlled so you probably damaged it when teaching the phone to swim. Flashing will do nothing for it.
Putting the phone in rice is a bad idea as it isn't as absorbent as you think. You should have left it over a radiator for a week or so to evaporate the water before even thinking about switching it on, but by then the damage was probably already done.
If it doesnt start working in week or so then expect it to be expensive to fix.
Beamed in by telepathy.
Not sure what eeprom is, but if its in the part below, then i could replace it myself with no problem. What are Your thougts? I know that more thing may be broken, but if it would go back to life i would be glad because I don't want to spend money on any new phone, maybe apart from S8/pixel but its expensive as hell.
https://e.allegroimg.com/original/0115f6/28e0dc9447338f8114880dfb6c1e
If i couldn't repair this bad boy then I would probably go with 6s, but I'm not sure if I want to make the transition to iOS.
Cheers and thanks for previous reply
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