Dear fellow XDA members,
Yesterday, I replaced by LG G2 screen and after the repair the phone wouldn't boot anymore. It however shows signs of life if I plug in the charger, this is what happens then:
Notification light blinks 8 times red
Pause
8 times a red blink
Pause
and this continues for ages.
What I did sofar:
-Tried to soft reset & hard reset via button combo (no result)
-plug out the battery connector & plug it in again
-check all connections and possible damage (no potential problems found)
-Check voltage of battery (it is around 3V)
-Put phone in charger for a whole night
Do you guys have any ideas what is causing the problem? what does the 8 blinks error code mean? Hopefully you can help me out!
that sounds like the new screen is damaged.
try the old one and see if it boots
i dont think that it has anything to do with the battery
no idea what the led error code means
Not working.. Also replaced battery, but still same blinking led
Related
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.
Click to expand...
Click to collapse
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.
Hi all,
My Nexus 4 just shut down after going really hot. I cannot turn it on anymore, when I press the On/Off button with our without the volume buttons nothing happens, except if it is plugged in.
In that case, after about 15 sec I have a blinking red led.
I think the problem is material, but I don't know if the problem comes from the battery or something else. I don't want to buy a new battery if my Nexus 4 is dead... So I am trying to figure out if the problem is about the battery or not. I think not because even when plugged in, nothing shows on the screen when I try to turn it on.
What do you think ?
Thanks very much for your help,
Guillaume.
blinking red led
GrIc said:
Hi all,
My Nexus 4 just shut down after going really hot. I cannot turn it on anymore, when I press the On/Off button with our without the volume buttons nothing happens, except if it is plugged in.
In that case, after about 15 sec I have a blinking red led.
I think the problem is material, but I don't know if the problem comes from the battery or something else. I don't want to buy a new battery if my Nexus 4 is dead... So I am trying to figure out if the problem is about the battery or not. I think not because even when plugged in, nothing shows on the screen when I try to turn it on.
What do you think ?
Thanks very much for your help,
Guillaume.
Click to expand...
Click to collapse
When you get the blinking red led while on the charger, how many time does it flashes ?
Is it the same as this:
"
By red flashing light, I mean: Hold power for 12 secs with good charger connected gives flashing red light: one short, pause circa 2 sec, 11 flashes at one per sec, pause under 1/4 sec, one short dim flash, pause c. 2 sec, repeat. This is the notification LED directly above the USB socket.
"
cxda48 said:
When you get the blinking red led while on the charger, how many time does it flashes ?
Is it the same as this:
"
By red flashing light, I mean: Hold power for 12 secs with good charger connected gives flashing red light: one short, pause circa 2 sec, 11 flashes at one per sec, pause under 1/4 sec, one short dim flash, pause c. 2 sec, repeat. This is the notification LED directly above the USB socket.
"
Click to expand...
Click to collapse
Hi cxda48,
I have the exact same behaviour : 11 flashes, a short pause followed with one short flash, then repeat.
You have an idea of what it means ?
Thanks !
I had a similar problem. The phone will not start and when you put the red light blinking loaded several times. My Solving: I opened the phone and pulled the battery pins. I connected the battery and the phone started normally.
anetgrup said:
I had a similar problem. The phone will not start and when you put the red light blinking loaded several times. My Solving: I opened the phone and pulled the battery pins. I connected the battery and the phone started normally.
Click to expand...
Click to collapse
*similar* but not the same I guess.
It seems like the IC that turns on and off the LED is the PMIC ("Power Management Integrated Circuit"). When something goes wrong, this IC has got some intelligence to give out some information about what is wrong (a bit like the bios on a PC). So 11 red LED flashes is an error code I guess. When the battery is disconnected it's 1 red LED flash (that error code probably means battery not present/worng) in my experience.
I know at least that with the 11 flashes issue, changing / reconnecting a charged battery does not solve this issue
Would anyone have information about what these codes mean ?
this just happened to me. Any solutions?
jimmy2823 said:
this just happened to me. Any solutions?
Click to expand...
Click to collapse
I thought I should give some feedback on how I sorted out this problem:
After discussion with google after-sales, I sent it for repair to the official LG repair contractor in the UK (SBE Ltd, based in Ashford, UK).
I precisely chose to go through LG repair rather than google because google warned me they would replace the nexus4 so I would
1) loose my data
2) get a potentially worse phone(refurbished) than mine (which is really mint with outstanding battery life)
I sent the phone with instructions on what I think needed done : replacement of the PMIC and *not* a swap of motherboard. When the nexus4 was back, I noticed they ignored my message & swapped the motherboard .
They kept my housing but they also swapped the battery(was not required) and now the battery life is very poor ! I am still in communication with LG regarding the battery issue
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
Click to expand...
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.
Click to expand...
Click to collapse
I tried. Maybe. Now i'm looking for donor.
Hello
I have a broken Nexus 4 which I would like to repair for a friend but I'm not 100% of the issue, so I was hoping someone might be able to diagnose it with the symptoms which are :
When I plug power, red led flashes once
When i plug the power while holding power and volume, red led flashes once then android will start booting normally but shuts down after 2-3 sec and the red led flashes once again
Same thing happens if remove the battery
Anyone knows for sure what I should replace ?
Thanks
After some trial and error with 2 broken nexus 4, I managed to get a combination that sort of works :
Phone is not recognised by computer
Phone can only be restarted by pressing power up + volume, which means factory reset and system updates are not working
Battery % is wonky, sometimes it will drop to zero, most of the time it stays at 45% while charging
Any advice ?
Sounds to me like the battery needs replacing.
Hi all. my Samsung S7 Edge was working fine albeit a bit sluggish at times but it was okay. I was down to 14% charge and so connected it to its Samsung charger with a non stock cable which is its usual charging process. It was otherwise okay and the screen went off so it was completely black, the red charging LED came on and I left it like that for a little while. It is still in that precise state and no sequence of button pressing for any amount of time gets any response at all. Nothing, no vibrate, no charging indicator, no flicker - absolutely nothing changing. Red LED and blank screen, no response. I would like to discharge the battery asap and have clamped the Vol- and on/off button pressed for 20 minutes and it is not connected to anything. It is not rooted and there is no response if I connect it to a computer. Is it bricked? How can a phone 'brick' while working as it should?
So I removed the back, disconnected the battery for a minute or so and reconnected it. The red light had gone off and now nothing, no light at all and it is connected to the charger with the Samsung cable. I have tried a different charger - my laptop. I happen to have an unused battery I was going to replace this one with so I have now also tried another battery. The phone is just dead and no response at all so I guess there is only one option - bin it!
Well I happened to have a smashed S7 Edge so a working motherboard which I replaced and obviously cured it. Restoring as much as I can remember but can anyone still suggest anything I can do that may kick start this motherboard?
The same happened with my S7 Edge, yesterday. Just a blinking blue led and I couldn't turn it on. So I waited till the battery was empty and tried to recharge it. No red led no button combos are working, nothing. The phone is dead.
Was there an update?