Hello guys!
I've dropped my nexus 4 and the LCD crashed completly. Then i bought a new LCD (only LCD) and tried to change by myself, but everything went wrong, i couldn't attach it with the glue that they sent me and i saw some cracks on the display.
After the "change", the phone does not turn on anymore, just blink the notification led with red color.
Now i'm thinking to buy the full display (LCD+Display) and try to change it again, i mean, it can't be hard to do, you just have to connect the cables and close (that's what i think).
Is there a way to discover if the full display will bring my phone back to life? :crying:
Thank you!!
Up :crying:
up
The blinking red LED could indicate a fully discharged battery. Try leaving it on a 2.0 amp charger for a few hours to see if you can get it to boot.
audit13 said:
The blinking red LED could indicate a fully discharged battery. Try leaving it on a 2.0 amp charger for a few hours to see if you can get it to boot.
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I've tried it but the phone still the same. Maybe it's happening due the display is broken (cracked in the top right). I've installed a new one lcd thinking this could be the problem but now i'm thinking it's the display. Is there any way to test the motherboard and see if it's ok? If i could test the motherboard, i could decide between buy a new complete display (lcd + display) or another phone.
Thanks!
I don't know of any way to test the motherboard without a working display.
Heeyy, i've tried a new one charger, the phone blinked the red light a few minutes and then the screen turned on, but unable to see anything, due the broken display, but² the power button dont do anything, not even to turn the screen off. By this we can conclude that the motherboard is ok, and the problem is the display, right?
I've attached the photo of the screen. The white traces is where the display is "cracked", not really cracked, it's like a kneaded cloth, but it matches the cracks that the screen had.
As a test of the motherboard, let the phone charge with the new charger for a couple of hours. Then, try and power up the phone in fastboot mode, and type "fastboot devices" from a command prompt. Hopefully, the command will return the phone's serial #.
Related
I was on my computer when i remembered i has something written in my tablet's notes that was important. I took it out of my bag and noticed it wouldn't turn on, it was out of battery (hadn't touched it for about a week). I just plugged it in the proper asus charger and put it down and went straight back on my computer.
I decide to check on it after 2 hours thinking it would be near or fully charged. I pick it up and noticed it was on a blank back lit screen. I unplugged it and then the screen turned straight off. Wondering if it didn't charge at all i re-plugged it in. There was no google logo (rooted), instead it turn on with a lit black screen and off and repeating a few times and then small thin artifact pixels run across the screen (red, blue and yellowy colours) and then stay at a black lit screen like when i first picked it up. I had just noticed a small buzzing sound while this was happening and still does so when stuck at the screen. I'm pretty sure it was buzzing when i had found it.
I redid what i had done (unplug, replug) and watch to see if it did the same thing. It did. I tried to power it off while it was at the black screen and it did, but then it would turn back on and etc. Same if i tried to enter boot loader or any key combinations.
I've tried disconnecting the battery and reconnecting and same effect (tried it without battery attached also)
I have a feeling it is dead now and i have no other ideas (checked many forums but got nothing).
Any help would be appreciated.
yvgamer94 said:
I have a feeling it is dead now and i have no other ideas (checked many forums but got nothing).
Any help would be appreciated.
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It's surely hardware failure, have take some humidity or something like that?
Try press power for 60 seconds, if you wont see any Google logo there's some hardware failure you need to RMA ( http://en.wikipedia.org/wiki/Return_merchandise_authorization )
found the fix
I found away to fix my nexus 7. You could be right how it might have a minor hardware fault, live in australia in the high hot tropics (high humidity). I decide just to plug it into my computer usb charger instead of the proper charger since it had a lower max amp output. Against my ear, a much fainter buzzing is still heard but this time, there was nothing. No power, no back lit black screen, just a very faint buzzing. Decided to let it sit just to see what happens. After an hour or so, i decided to press the power button and noticed there was a battery charging signal. To my delight, I'm sure it was in working order now so i powered it on and oh how relieved i was.
I determined that my device might have had a small hardware fault that made it draw to much power from the 2 amp original charger and thus why the tablet could not boot up properly (from battery depletion). Either that or my charger could be bugged to. But the thing is, since it charged to slow from the usb, i plugged in the proper charger and it worked fine. Just have to try not deplete my battery i guess.
Thanks.
Hi All
My friend recently gave me his LG G2 as it had a problem.
What happens is currently if you try and turn on the phone nothing happens. When you plug the phone into the charger the red led blinks and nothing else happens. He told me that he got the phone brand new off eBay and that the problem started after he left the phone plugged in overnight. No software modifications have been done to the phone prior to the red light issue.
After some investigation into the issue i found nothing except another eBay listing with a LG G2 D802 where the guy got water into his phone and it has the exact problem where the phone does not turn on and a red light comes on when attempting to charge the phone. The eBay listing also says that the phone was seen by a service technician who said the circuit board was damaged but is repairable
Before i spend any money buying spare parts does anyone have any idea on what the problem is and whether its worth fixing?
Thanks
Could it be that the motherboard got damaged?
I don't think the mother board got damaged. I had the same problem with both my G2's. (D800 and LS980)
I had changed the motherboard from ls980 to the d800, I connect everything, LCD, digitizer, battery,front and back camera ..etc..
I go to try and power the phone up but nothing happens..
I go to plug in the phone.(Nothing happens)
I use another charger(nothing happens.)
My phone wasn't water damaged though. In your case you could open up your phone and disconnect the battery connector, After about 1-3 minutes connect it back & leave phone alone.(don't try to power up)
I had a problem with one of the phones not having the red LED light coming up to tell nevit was charging. I switch the battery to another bezel & motherboard & it shows 40% battery level.
It definitely worth a try to open your phone & disconnect and connect the battery if the phone was charging one night.. I remember seeing a forum on here that the phone might be still on charging mode or something.
Sent from my LG-D800 using XDA Premium 4 mobile app
Hi,
I have the same problem, the only sign of life is a red flashing led when I try to charge it up.
My lg g2 (D802) did get water damaged tho, however I don't think it has been damaged that bad. When I found it in the watery environment it still worked, but it was quite warm. First hour or so I put in in a towel, because I wasnt home. When I got home I discovered it was dead. Then I put it in rice for two days, but now this problem occurred.
I reconnected the battery (twice) but it didnt change a thing, and now it still won't boot up...
Hopefully someone can help me (or sees this at all),
Thanks in advance
I have the same problem with my G2. I changed the motherboard after it got water damage but nothing else changed. what should i do?
Solution for blinking red error
Hello Guys,
I have the same problem like you others. 8 times red blinks, phone won't charge, PC won't recognize it, dead at all. But I found the solution. There is a short circuit on the moterboard. That can be LCD, digitizer, buttons or anything other. I have unpluged digitizer connector and BOoM!, connected it to charger and turn on with power button. So you guys can test what's making problem on your MB, it can be anythinhg. I hope that will help to someone.
Sorry for bad English.
same thing here
I have an LG G2 that I recently replaced the batter (ordered from ebay). After the install, the phone just blinks the red indicator light. When I hold the power button, it blinks 8 times, pauses then starts over again blinking 8 times and pausing. Please help.
Lore4321nz said:
I have an LG G2 that I recently replaced the batter (ordered from ebay). After the install, the phone just blinks the red indicator light. When I hold the power button, it blinks 8 times, pauses then starts over again blinking 8 times and pausing. Please help.
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I have the exact same problem. recently bought a new battery, because my original one is increasing in size (very strange) and decreasing in power.
When i put in the new battery the phone doesnt work if i try to turn it on. When i connect the battery to the charger its just the blinking red light...
OrtizG33R44d0 said:
I don't think the mother board got damaged. I had the same problem with both my G2's. (D800 and LS980)
I had changed the motherboard from ls980 to the d800, I connect everything, LCD, digitizer, battery,front and back camera ..etc..
I go to try and power the phone up but nothing happens..
I go to plug in the phone.(Nothing happens)
I use another charger(nothing happens.)
My phone wasn't water damaged though. In your case you could open up your phone and disconnect the battery connector, After about 1-3 minutes connect it back & leave phone alone.(don't try to power up)
I had a problem with one of the phones not having the red LED light coming up to tell nevit was charging. I switch the battery to another bezel & motherboard & it shows 40% battery level.
It definitely worth a try to open your phone & disconnect and connect the battery if the phone was charging one night.. I remember seeing a forum on here that the phone might be still on charging mode or something.
Sent from my LG-D800 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I'm having the exact same problem...working ls980 phone using to restore my D801 motherboard....but have no power.
When I plug the ls980 board back in it works again. Last time my D801 board red led blinked 2x but wouldn't startup with its own battery. How did you fix it?
It is the battery. either the cable is ripped or the battery is at 0 volts I've just tested this on my LS980 using my analyzer to fully charge a battery externally to 100% made it work fine, please check the battery cable its very thin and very easy to rip without knowing it. (I work at a battery store) Hope this helps some of you!
A solution for 8 Red blinks:
If you have 8 Red blinks when you change the screen the Solution is:
The two metal joints from two small boards (besides volume and power button) that connect to the motherboard they should be completely attached to the connector.
What we had:
Nexus 4. with cracked digitizier, but finely working. (except the battery, which lasted less than it should) i tried to remove glass, of course with no luck. Ended with no image on lcd. but phone worked fine, charged, connected to pc, played sounds, etc.
2 weeks of waiting for new lcd. I didn't charge it all that time. (my bad)
So after replacement, i tried to power on, aand it didn't show any signs of life. Put it on charge, red led blinked once when i connected usb. (there was no red led any time after "first charge")
So now:
When i power it on without charge it gives one short vibration. No led or image.
When i put it on charge no reaction at all, but when i hold power button it gives the same vibration and if i hold it for 8-10 seconds more the red led blinks. It stops blinking only when i release power. Also, when the red led blinks, strange repeated noise comes from charger.
Also, i'm not sure about lcd, but it should be fine. No reaction from pc, also.
Your ideas? Hoping it's not the motherboard fault
_RiVeRsIDe_ said:
What we had:
Nexus 4. with cracked digitizier, but finely working. (except the battery, which lasted less than it should) i tried to remove glass, of course with no luck. Ended with no image on lcd. but phone worked fine, charged, connected to pc, played sounds, etc.
2 weeks of waiting for new lcd. I didn't charge it all that time. (my bad)
So after replacement, i tried to power on, aand it didn't show any signs of life. Put it on charge, red led blinked once when i connected usb. (there was no red led any time after "first charge")
So now:
When i power it on without charge it gives one short vibration. No led or image.
When i put it on charge no reaction at all, but when i hold power button it gives the same vibration and if i hold it for 8-10 seconds more the red led blinks. It stops blinking only when i release power. Also, when the red led blinks, strange repeated noise comes from charger.
Also, i'm not sure about lcd, but it should be fine. No reaction from pc, also.
Your ideas? Hoping it's not the motherboard fault
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Click to collapse
Take the back off again, unplug the battery and replug it. Then try to boot/charge (you can do this without replacing the back, in case you want to try again). If this doesn't work, you may need a new battery. Most likely the battery itself is fine, but maybe the connector ribbon was damaged.
Planterz said:
Take the back off again, unplug the battery and replug it. Then try to boot/charge (you can do this without replacing the back, in case you want to try again). If this doesn't work, you may need a new battery. Most likely the battery itself is fine, but maybe the connector ribbon was damaged.
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Click to collapse
I tried. Maybe. Now i'm looking for donor.
Hi All,
I dropped my Samsung s5 (rooted) phone in water.
Before it went submerged(not more than couple of seconds) it hit the side of the sink.
I quickly took it out and looked for visible signs of broken screen or any other part. But there were no new marks, I wiped it clean, turned it off, took the battery out and looked for any water, but nowhere I could see any water inside or outside.
I then turned on the phone, It turned on all the way to homes screen , I entered pin and could view regular home tab, then I think after few seconds, screen went black. I turned it off and tried it on again but it never came back. Once in between in all of my attempts of turn off and restart, it showed battery and yellow triangle on top of battery sign.
I have tried to search and it seems like lots of people ended up with similar symptoms in their phone, but none of the solutions suggested have worked for me.
What I have tried is:
1. Leave phone submerged in a pot of uncooked rice for couple of nights
2. Take out battery and press power button for x number of seconds (starting from 10 to onwards of 2 minutes)
3. leave batter out and then try to restart (again time was variable from few minutes to several hours)
4. Soft hit on power button,
5. I might have overlooked writing a solution here but I wonder if there is any that was suggested that I have not tried.
Initially when this happened, I connected it to charging cable and red light would start blinking(where as it should stay solid red while being charged).
Anyways, now phone screen is dark. I can use adb shell to view the content on the phone which means OS is till intact and I am 100% sure that phone is working as intended. As the notification lights blink when I get an email if phone is on etc.
Its an expansive phone and hope some one can shed light on how to revive the dead screen?
Thanks
Sorry to hear that! It really sucks. Was the charging port loose or opened when dropped in the sink?
I know the blinking red light, instead of the solid red light, when charger is connected indicates a problem with charging. This can be caused when there is little water in or around the charging board or the motherboard and charger is connected.
If you don't see any signs of water damage (pink/red indicators instead of white), i'd say back up all your files and everything else through ADB, wipe the phone clean, in case you find somewhere to service or in case it gets worse and you can't access your files any more.
Chat with a Samsung rep online too, and see what your options are. Sometimes they repair it for ~$70, off warranty, and with that they might even swap the motherboard and other pieces too if needed and you only paid 70 or whatever they offer.
Thanks for reply, now charging port was shut...and after couple of days now charging happens ok, I have a solid green light when I connect charger.
So I am guessing you are thinking that either screen is gone or something else and therefore no possible way to fix this?
Hey.
I've tried to fix my phone screen's digitizer (first idea was to unplug the screen and plug it back in, which kinda worked). The phone worked fine while disassembled and I did a stupid thing - I turned it off by disconnecting the battery, as the power button was not working while disassembled. After I put it back together it did not turn on anymore (disassembling it again does not help). The notification LED is flashing while I'm holding the power button, it also starts flashing when I plug in the charger.
What could be the issue here?
EDIT: I figured out the issue - I broke off a tiny component on the motherboard while putting it back together. Took me a while.
How is the phone now? Did you replace the motherboard or lcd display? Did you repaired? Is the phone fixed?
XDA_PH said:
How is the phone now? Did you replace the motherboard or lcd display? Did you repaired? Is the phone fixed?
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I have soldered on a new capacitor (one that I broke off) and now it is working fine. I still have to replace the display though.
Can you take a picture where is the component located
Can you take a picture or link where is the broken component located?
Mine unit is also broken, the amoled is dead but still active the touch is working and alarm is working just no display but after i decided to disassemble the mi 9T my self. Every time i charge the notif led blinks and also the battery is drained
XDA_PH said:
Can you take a picture where is the component located
Can you take a picture or link where is the broken component located?
Mine unit is also broken, the amoled is dead but still active the touch is working and alarm is working just no display but after i decided to disassemble the mi 9T my self. Every time i charge the notif led blinks and also the battery is drained
Click to expand...
Click to collapse
Did you solve the problem? I have the same problem on my device