LG G2 won't turn on after battery replacement - G2 Q&A, Help & Troubleshooting

So I decided to replace my 3 year old battery that had about 50% of its initial capacity remaining with a new one. I followed YouTube video to do it but after reassembling the phone it won't turn on. I tried plugging the charger in for several minutes and putting my old battery back into the phone but without success. The phone does not respond at all, no image or sound or LED light. I'm trying to understand what exactly I've screwed up. So my question is what I should worry about that could make my phone not turn on. For example are camera/proximity sensor connectors crucial or irrelevant? Should I be able to turn my phone on without battery with charger plugged in? Does anyone else have any experience with this and if so what was the problem?

Also the charger was warm in the beginning but after some time it became cold. I think that indicates that the battery was connected properly and was charging. The phone still won't turn on though.

Hey!
First you should make sure that all cables inside the phone are properly connected, double check them - sometimes you'll maybe miss one of these tiny connectors

niklas389 said:
Hey!
First you should make sure that all cables inside the phone are properly connected, double check them - sometimes you'll maybe miss one of these tiny connectors
Click to expand...
Click to collapse
Yeah, I did but to no avail.

nikoliazekter said:
Yeah, I did but to no avail.
Click to expand...
Click to collapse
Maybe the new battery is DOA...

Related

Bricked, perchance? - TyTN won't boot

Hey all,
Having served me faithfully for 18 months now, my TyTN has finally given up the ghost. It refuses outright to boot.
Not a splash screen, not a backlight, no response at all no matter how long I hold that power button down.
When I plug it into the mains it displays reddish on the right hand LED, having left it plugged in for a while it stops displaying even that until I unplug it and re-plug it.
I've tested the battery with a voltmeter and the power on the phone with a circuit checker, there's not broken circuitry and the battery certainly generates a current.
Though it's not TOO urgent, as I have a backup phone (Nokia 3220, ugh) unlocked and in use, and it's not TOO horrible as I was about to order a Touch Pro anyway, I'd like to keep it strictly unbricked either for sale or for backup.
Any thoughts on either:
1. What the problem is, I'm absolutely baffled.
2. How I might go about fixing it.
Thanks, Forlornity
If its only displaying a red LED when you plug it in that generally means that the power sensor has been confused or the battery isn't touching the contacts properly.
Are you using the supplied charger or a 3rd party one/usb connection. The usb and most 3rd party chargers don't deliver the right charge. If its underpowered it may not trip the charging sensor.
Try pushing the battery tightly against the contacts, I had a problem whereby the contacts had been pushed in so the battery didn't connect properly.
Clean the contacts with a cotton bud and isopropyl alcohol (surgical spirits) to remove any corrosion. DON'T USE METHYLATED SPIRITS!!! It leaves a residue.
Thats all I can think of now.
Cheers...
Isopropyl you say?
It's a pity, I've actually got meths handy.
I'm using the stock charger, I suspect I might be suffering a RLOD, but none of the usual methods are working...
I'm gonna see if I can get hold of a charging dock for the battery from expansys or suchlike (unless anyone knows anywhere better?), see if that does the trick, if not, new battery, then if THAT fails I'll have no idea
Thanks for the tip on the isopropyl!
forlornity said:
Isopropyl you say?
It's a pity, I've actually got meths handy.
I'm using the stock charger, I suspect I might be suffering a RLOD, but none of the usual methods are working...
I'm gonna see if I can get hold of a charging dock for the battery from expansys or suchlike (unless anyone knows anywhere better?), see if that does the trick, if not, new battery, then if THAT fails I'll have no idea
Thanks for the tip on the isopropyl!
Click to expand...
Click to collapse
I have the same problem, and new battery didnt help! anyone got solution for this problem? I menage to charge battery with 2 wires, and phone starts, but it wont charge! i mean orange led is on, and it says CHARGING, but battery % is going down down until it reaches 0%!

HD2 not charging,but is recognized by computer

My TMOUS HD2 won't charge when plugged in to any source. I've tried multiple cables and have tried plugging it into the computer as well as into the wall and with the car charger. Nothing as far as a charge, but the light flashes on the LED and when plugged into the computer, it is recognized and can sync.
Also, the "do not charge the battery when connected to a PC" is NOT selected.
Is there a registry setting or something that may have been changed? Any help would be greatly appreciated.
I just pulled out the battery and restarted the phone and it charged, but when I unplug it and then plug it back in, it won't charge again. I tried pulling the battery out again and it didn't work.
I'm truly baffled.
Hope you guys are not using an aftermarket battery. If you are,then most likely that is the culprit.
sounds defective to me, maybe a bad battery, or a dodgy circuit in the charge control circuits.speak to your vendor, try another battery.
(id try hard reset first, though)
Mine did this last night. Wouldn't charge of the wall charger or PC. What I did was take the battery out, hold the power button down for 20 seconds, put battery back in, plugged it onto the wall charger and it started to work again.
rumz82 said:
Hope you guys are not using an aftermarket battery. If you are,then most likely that is the culprit.
Click to expand...
Click to collapse
Well crap. When I get home I'll throw in a stock battery and see if that changes things.
go to
settings->system->power->battery and uncheck "when phone is on, do not charge battery, when connected to a PC"
it should help
MB
Quickill said:
go to
settings->system->power->battery and uncheck "when phone is on, do not charge battery, when connected to a PC"
it should help
MB
Click to expand...
Click to collapse
As said in the first post, that was off.
Anyways, was using Kumar 1.6 and flashed Elegancia 2.5 and it's fixed.
try different ROM and RADIO it may help
for those having this issue you might want to check out the contact points on the phone for the battery.
I had this issue and it would out of no where not charge but it would say the battery is 100% right away and the LED light would blink orange and green. But when you unplugged it it would go right back to the actual charge amount that was on it before.
I noticed when I put in the battery that the middle contact was poking out between the battery and the phone and then i pushed it in and it started charging.
rlacsamana1989 said:
for those having this issue you might want to check out the contact points on the phone for the battery.
I had this issue and it would out of no where not charge but it would say the battery is 100% right away and the LED light would blink orange and green. But when you unplugged it it would go right back to the actual charge amount that was on it before.
I noticed when I put in the battery that the middle contact was poking out between the battery and the phone and then i pushed it in and it started charging.
Click to expand...
Click to collapse
Had the same problem and tried rlacsamana's suggestion. That one do the trick. Ty n God bless.
rlacsamana1989 said:
for those having this issue you might want to check out the contact points on the phone for the battery.
I had this issue and it would out of no where not charge but it would say the battery is 100% right away and the LED light would blink orange and green. But when you unplugged it it would go right back to the actual charge amount that was on it before.
I noticed when I put in the battery that the middle contact was poking out between the battery and the phone and then i pushed it in and it started charging.
Click to expand...
Click to collapse
my wife's phone had the same problem with the middle contact. Poor design on htc's part. A hole through the back cover to get to the reset button would be really nice.
HTC HD2 USB Charging problem
EXCELLENT!!!
I have been zapped @ this damn problem for like the last 10 days.
it WAS the middle connector. so stupid. feels great to have charging back!
rlacsamana1989 said:
for those having this issue you might want to check out the contact points on the phone for the battery.
I had this issue and it would out of no where not charge but it would say the battery is 100% right away and the LED light would blink orange and green. But when you unplugged it it would go right back to the actual charge amount that was on it before.
I noticed when I put in the battery that the middle contact was poking out between the battery and the phone and then i pushed it in and it started charging.
Click to expand...
Click to collapse
Thank you
rlacsamana1989 said:
for those having this issue you might want to check out the contact points on the phone for the battery.
I had this issue and it would out of no where not charge but it would say the battery is 100% right away and the LED light would blink orange and green. But when you unplugged it it would go right back to the actual charge amount that was on it before.
I noticed when I put in the battery that the middle contact was poking out between the battery and the phone and then i pushed it in and it started charging.
Click to expand...
Click to collapse
Thanks, this worked for me, saved a lot of time too !
Damn htc for such a poor design.
rlacsamana1989 said:
for those having this issue you might want to check out the contact points on the phone for the battery.
I had this issue and it would out of no where not charge but it would say the battery is 100% right away and the LED light would blink orange and green. But when you unplugged it it would go right back to the actual charge amount that was on it before.
I noticed when I put in the battery that the middle contact was poking out between the battery and the phone and then i pushed it in and it started charging.
Click to expand...
Click to collapse
THANK YOU!
Thank u, thank u, thank u
I thought hardware should be hard but not in case of HTC... But really appreciate the fix suggested here... Saved my day...
rlacsamana1989 said:
for those having this issue you might want to check out the contact points on the phone for the battery.
I had this issue and it would out of no where not charge but it would say the battery is 100% right away and the LED light would blink orange and green. But when you unplugged it it would go right back to the actual charge amount that was on it before.
I noticed when I put in the battery that the middle contact was poking out between the battery and the phone and then i pushed it in and it started charging.
Click to expand...
Click to collapse
Amazing how so many of us can have the same problem, that's TRUE design fault right there. You described my problem exactly, Battery Displaying as 100% when charging, LED flashed Orange and Green and would discharge instead of charging. It was indeed my middle contact, thanks a ton.
I had the same issue, and SOLUTION here worked, but another issue I have is that phone is taking close to 4 hours to completely charge. Anyone out there had the same issue?
mynlal said:
I had the same issue, and SOLUTION here worked, but another issue I have is that phone is taking close to 4 hours to completely charge. Anyone out there had the same issue?
Click to expand...
Click to collapse
Did you used the official charger? Some micro USB wire are rated higher than others as far as power vottage goes...I think...cuz this happens to me too...
azzzz said:
Did you used the official charger? Some micro USB wire are rated higher than others as far as power vottage goes...I think...cuz this happens to me too...
Click to expand...
Click to collapse
Yeah I am using the same charger, earlier it would charge in 1-1.5 hour now almost 4 hours.

[Q] LG G2 not charging at all!

Hi all,
I just bought an LG G2 (D802 international unlocked version) and the behavior when plugging in the charger cable is very strange:
When I plug in any charger (tried 4 different ones with different cables incl. stock), the phone is not charging.
BUT, there are a few strange things happening:
1. On the lock screen it shows "Charging"
2. In the settings menu under the battery menu it shows "not charging" (this is different from being unplugged, then it shows something like "discharging")
3. Sometimes the popup comes up when I plug it in, but not always.
3. When I turn the phone off and plug the cable in, the display lights up (also the LED) and it shows the "charging" battery symbol.
IN ANY CASE, THE PHONE BATTERY IS NOT CHARGING!
Here is what I tried so far:
- Used 4 different chargers & cables
- Tried to charge via USB
- Did a factory reset
Nothing helped so far.
I suppose that its a hardware failure, but maybe someone has a different suggestion/solution?
Only thing i can recommend is maybe do a factory reset to see if that corrects it which i doubt it will. Other then that i would have the phone warrantied then.
If its a software issue then that is at the kernel level. I would assume its a hardware issue though
Sent from my LG-D802 using XDA Premium 4 mobile app
x714x said:
Only thing i can recommend is maybe do a factory reset to see if that corrects it which i doubt it will. Other then that i would have the phone warrantied then.
If its a software issue then that is at the kernel level. I would assume its a hardware issue though
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
i think so too. already tried the factory reset, but no luck....
js931 said:
i think so too. already tried the factory reset, but no luck....
Click to expand...
Click to collapse
Maybe op off back cover and see if battery is loose? Warranty.....?
RubbleTea said:
Maybe op off back cover and see if battery is loose? Warranty.....?
Click to expand...
Click to collapse
I sent it back to get a replacement. Was just wondering: Is it possible to remove the back cover on that phone without damage/loss of warranty?
js931 said:
I sent it back to get a replacement. Was just wondering: Is it possible to remove the back cover on that phone without damage/loss of warranty?
Click to expand...
Click to collapse
Yup some ppl I heard were taking off to buff the back cover shine off....hope you get it soon!
Same problem
js931 said:
Hi all,
I just bought an LG G2 (D802 international unlocked version) and the behavior when plugging in the charger cable is very strange:
When I plug in any charger (tried 4 different ones with different cables incl. stock), the phone is not charging.
BUT, there are a few strange things happening:
1. On the lock screen it shows "Charging"
2. In the settings menu under the battery menu it shows "not charging" (this is different from being unplugged, then it shows something like "discharging")
3. Sometimes the popup comes up when I plug it in, but not always.
3. When I turn the phone off and plug the cable in, the display lights up (also the LED) and it shows the "charging" battery symbol.
IN ANY CASE, THE PHONE BATTERY IS NOT CHARGING!
Here is what I tried so far:
- Used 4 different chargers & cables
- Tried to charge via USB
- Did a factory reset
Nothing helped so far.
I suppose that its a hardware failure, but maybe someone has a different suggestion/solution?[/QUOTE
i 've got the same problem , which you mentioned above, could you please tell me did you get any solution to get rid off from this trouble . kindly reply
Click to expand...
Click to collapse
I got a replacement unit, it was a hardware issue.
The same problem i am facing with my G2 Sprint LS980 and i am pretty sure this is not hardware problem because my phone had signal issues and LG charged repair fee around US$ 55. My phone was not rooted before repair and also my phone was charging fast too. It has installed ZVD7 ROM. But once i get my phone it was completely changed. They rooted my phone, They converted my ROM from ZVD7 to Cloud G3 2.2 and they also installed TWRP recovery. But still phone is not charging same like as you posted. I just noticed another thing phone is perfectly charging in TWRP recovery mode. Therefore i am 99% sure it's not hardware issue. 2nd issue is that phone is also not detect with my PC. I tried different drivers but failed. Anybody can help me or suggest me any suitable ROM and provide me correct driver or PC suite?
having same issue , have u solved??
Bilgramiz said:
The same problem i am facing with my G2 Sprint LS980 and i am pretty sure this is not hardware problem because my phone had signal issues and LG charged repair fee around US$ 55. My phone was not rooted before repair and also my phone was charging fast too. It has installed ZVD7 ROM. But once i get my phone it was completely changed. They rooted my phone, They converted my ROM from ZVD7 to Cloud G3 2.2 and they also installed TWRP recovery. But still phone is not charging same like as you posted. I just noticed another thing phone is perfectly charging in TWRP recovery mode. Therefore i am 99% sure it's not hardware issue. 2nd issue is that phone is also not detect with my PC. I tried different drivers but failed. Anybody can help me or suggest me any suitable ROM and provide me correct driver or PC suite?
Click to expand...
Click to collapse
having same issue on lock screen say charging but in setting -> battery say not charging but when plunged out say discharging , have u solved??
Same peoblem here
sumeetG said:
having same issue on lock screen say charging but in setting -> battery say not charging but when plunged out say discharging , have u solved??
Click to expand...
Click to collapse
Not yet Dear...It is the piece of junk for me. Now my ROM has been deleted. I want it back
I have the same problem. The phone is acting very inconsistent with charging after I replaced my broken display. This is the second time I replace the display, and it didn't cause any issues the first time. Basically, my phone won't charge more than maybe 2% over a period of 12-16 hours. The phone does not discharge as others have mentioned in previous posts.
No one seems to have a solution to this problem. Some people online are arguing that is it a "security measure" LG have installed into the phone, which makes it impossible to properly charge the phone without an official LG charger/cable. However, I never used the official charger, but been using various chargers and cables without problems!
But now comes the really weird part. I decided to take off the backcover, and then plug in the charger to see if pushing down on different parts would somehow fix it (loose connections etc..). But before I got around to test such hackery, I plugged in the USB and the phone suddenly started charging! I proceeded reproduce the problem/solution, and the result was very confusing: no real charging with backcover on; perfect charging with the backcover off.
Would anyone here on XDA have any ideas as to why this is happening? I've been thinking that the connectors on the backside on the cover might have something to do with it. Not having the backcover on does not seem to affect the phone at all (i can use it like I would without the cover).
TLR: My phone won't charge with the backcover on, magically works when the backcover is off. I suspect that it might have something to do with the connectors on the back of the cover.
Maybe putting the back cover on the phone is causing a grounding problem or shorting a circuit. Maybe put some insulating material on the inside of the back cover and then put on the phone?
audit13 said:
Maybe putting the back cover on the phone is causing a grounding problem or shorting a circuit. Maybe put some insulating material on the inside of the back cover and then put on the phone?
Click to expand...
Click to collapse
Yes, I thought about doing this, trying one connectors at a time. Do you think that the sticky part of a post-it note like do? I don't have electrical tape lying around atm :/
Anything that is non-conductive should be fine since it is just a test.
You could also use a non-sticky piece of paper between the cover and the phone's components.
decon89 said:
I have the same problem. The phone is acting very inconsistent with charging after I replaced my broken display. This is the second time I replace the display, and it didn't cause any issues the first time. Basically, my phone won't charge more than maybe 2% over a period of 12-16 hours. The phone does not discharge as others have mentioned in previous posts.
No one seems to have a solution to this problem. Some people online are arguing that is it a "security measure" LG have installed into the phone, which makes it impossible to properly charge the phone without an official LG charger/cable. However, I never used the official charger, but been using various chargers and cables without problems!
But now comes the really weird part. I decided to take off the backcover, and then plug in the charger to see if pushing down on different parts would somehow fix it (loose connections etc..). But before I got around to test such hackery, I plugged in the USB and the phone suddenly started charging! I proceeded reproduce the problem/solution, and the result was very confusing: no real charging with backcover on; perfect charging with the backcover off.
Would anyone here on XDA have any ideas as to why this is happening? I've been thinking that the connectors on the backside on the cover might have something to do with it. Not having the backcover on does not seem to affect the phone at all (i can use it like I would without the cover).
TLR: My phone won't charge with the backcover on, magically works when the backcover is off. I suspect that it might have something to do with the connectors on the back of the cover.
Click to expand...
Click to collapse
So you solved the problem?
I have very same problem decon89 described - I replaced screen and cannot charge it properly. And even worse: charging is possible with the phone being switched off completely. And after phone is charged - I cannot turn on the phone unless i open back cover and unplug-plug battery cable. Phone MAY turn on without unplugging-plugging battery, but it is blind luck. Yesterday i accidently turned off my 100% charged lg g2 and could not turn it back on during whole day. If someone has a solution please share it.
Hi everyone,
I'm so sorry for not following up on this thread. I haven't fix the problem yet, but it worked for same time, then started acting up again.
I've put a few strips of electrical tape on the bottom part of the phone, behind the black plastic thing. I did this because of an issue with my display having a loose connection. This fixed the screen problem, but the charging fault came back.
The idea of putting a piece of paper between the battery and cover did not work at the time, but I'll try it again tonight.
As I'm writing this, the phone is charging with the cover half off. It works, charges, no problem. I can even use the phone even though the bottom part of the cover is off.
decon89 said:
I have the same problem. The phone is acting very inconsistent with charging after I replaced my broken display. This is the second time I replace the display, and it didn't cause any issues the first time. Basically, my phone won't charge more than maybe 2% over a period of 12-16 hours. The phone does not discharge as others have mentioned in previous posts.
No one seems to have a solution to this problem. Some people online are arguing that is it a "security measure" LG have installed into the phone, which makes it impossible to properly charge the phone without an official LG charger/cable. However, I never used the official charger, but been using various chargers and cables without problems!
But now comes the really weird part. I decided to take off the backcover, and then plug in the charger to see if pushing down on different parts would somehow fix it (loose connections etc..). But before I got around to test such hackery, I plugged in the USB and the phone suddenly started charging! I proceeded reproduce the problem/solution, and the result was very confusing: no real charging with backcover on; perfect charging with the backcover off.
Would anyone here on XDA have any ideas as to why this is happening? I've been thinking that the connectors on the backside on the cover might have something to do with it. Not having the backcover on does not seem to affect the phone at all (i can use it like I would without the cover).
TLR: My phone won't charge with the backcover on, magically works when the backcover is off. I suspect that it might have something to do with the connectors on the back of the cover.
Click to expand...
Click to collapse
same here with my phone when i take off the back cover it started charging.

[Q] NEXUS 4 WATER DAMAGED? PLease Help

Hello everyone,
I was going for a swim in the pool three days ago and have forgotten to put my Nexus 4 in my duffel bag. The phone was submerge along with my swimming short for over 30 seconds :crying:. I dried off the phone, opened it up to removed the battery, and dried it off with a hair blow dryer for five minutes continuously. Then I put my phone in a bowl of rice. Its been two days hoping that the moisture is gone, I plugged it to a wall charger and have gotten the "blinking red light of death". Next, I removed the battery and charge the phone with out it, giving me a boot loader screen with the green android and the Google logo. But putting the battery back and turning it on only giving me that annoying blinking red light. I hope all the phone component is still good. So at this stage can you guys tell me if the battery is dead and would purchasing a new battery resolve this issue? Any input to resolve this red blinking light would be helpful, thank you for reading.
This worked for me:
http://forum.xda-developers.com/nexus-4/general/final-fix-nexus-4-red-light-death-t2250454
tommyga said:
This worked for me:
http://forum.xda-developers.com/nexus-4/general/final-fix-nexus-4-red-light-death-t2250454
Click to expand...
Click to collapse
I have charge twice and installed the battery back and still get the blinking red light. As you have done this before, how did you go about doing it? Was the battery suppose to be "hot" when its being charge? Did you soldered the charging cable "hot and neutral" to the battery positive (+) negative (-) as shown in step 7?
dante510 said:
I have charge twice and installed the battery back and still get the blinking red light. As you have done this before, how did you go about doing it? Was the battery suppose to be "hot" when its being charge? Did you soldered the charging cable "hot and neutral" to the battery positive (+) negative (-) as shown in step 7?
Click to expand...
Click to collapse
I'm not sure the battery was hot during the process #7..
I took some old phone charger, cut the two wires apart (the positive and negative), and just made them touch the relevant spots on the battery (no soldering was made).
Did you wait more than 15 minutes during this charging?
tommyga said:
I'm not sure the battery was hot during the process #7..
I took some old phone charger, cut the two wires apart (the positive and negative), and just made them touch the relevant spots on the battery (no soldering was made).
Did you wait more than 15 minutes during this charging?
Click to expand...
Click to collapse
Thanks for your reply. I also used an old lg charge with the right amount of Voltage ouput. I think it was 5 Volt or something and just split the cable, made it touch the relevant spots and used it electrical tape to secure the the charging charging cable making sure that the wire made contact with the positive and negative spot. Im not sure which cable was positive or negative, so I had to swap cable around and recharge every 15 minutes trial. I know my connection looks messy but thats the best i could do to make sure the make contact at the charging point on the battery. Is this how you do it? lol
[/ATTACH][/ATTACH][/ATTACH]
Basically it seems fine.
There are two more things I recommend trying:
1. Try charging it for 30 minutes.
2. When plugging the battery back, just plug it, and don't screw the two screws of the battery.
Try these two things - and keep updating if the red light still shows
tommyga said:
Basically it seems fine.
There are two more things I recommend trying:
1. Try charging it for 30 minutes.
2. When plugging the battery back, just plug it, and don't screw the two screws of the battery.
Try these two things - and keep updating if the red light still shows
Click to expand...
Click to collapse
I have tried charging twice with 30 minutes cycle on each attempt, and have installed the battery back to the phone without the screw of the battery. I tried turning the phone on by holding down the power button for 10 seconds, but there was no Google logo splash screen. The same thing happen on my second attempt, no Google or boot-loader screen. I plugged in the wall charger and let it sit for over two hour and still cant turn it on, only the blinking red light. Removing the battery, charging directly from the cable, and holding the power volume button down at the same time gave me a boot-loader screen and Google logo but the phone immediately shut off. Any ideas what else I could try? Could you tell me about where my phone is damage base on the picture from my earlier post?
If you see Google's logo, your phone can run fine. The problem is probably the dead battery. Consider replacing it with a new one.
sky0165 said:
If you see Google's logo, your phone can run fine. The problem is probably the dead battery. Consider replacing it with a new one.
Click to expand...
Click to collapse
Thanks i just order a new one yesterday, just thought I give it a shot instead of buying a new phone. Lets hope its as you say. Thanks for your input.
Ordered a new battery, and it booted up fine. The important thing is that the blinking red light of death is gone so far.. thank goodness! Looks like the battery shorted out when my phone was submerge in the water. There is one small yellow streak line on the bottom right of the screen now but I can live with that. Glad nothing else is damage Thank you for all of your help! Cheers!

[SOLVED] Issues after display replacement [LG G2 d802] Red led blinks 8 times + more

I don't know if this is the right section, anyway because it isn't specifically hardware related I posted here... for admins feel free to move in the appropriate thread.
My G2 dropped on the floor and as result I got a complete broken display plus not working touch.
The device, touch apart, worked without issues so as 1st step I made a full backup of sd-like content (music, pictures, etc...) to my laptop.
note: even if touch didn't work I was able to access the device trough adb and a very useful utility (http://marian.schedenig.name/2014/07/03/remote-control-your-android-phone-through-adb/)
Next I ordered a replacement for the display, looked for instructions and changed by myself... and the phone didn't boot or even charge... nothing, the only signal of life was when attached to the wall charger the led blinking in red eight (8) times consecutively then no blink for a second and again blink for 8 times and so on in an infinite loop.
Of course I started to look for solution and tried every kind of combination but none worked.
I started to think that I missed up something during the display replacement or the battery fault or even I fried in some way the motherboard, anyway for what I read it supposed that could be that the battery gone under certain voltage or minimal charge so the motherboard circuit didn't recognize as "good or safe battery", it is simply bypassed by charge circuit.
note: I waited for the new display about 10 days and the device (fully charged) slept (turned off) in a drawer so I don't think it was totally discharged
I disassembled and reassembled again the device but nothing happened so while looking for a solution I saw a video on Youtube (https://www.youtube.com/watch?v=MZwknmWCmOE) solving a issue similar to mine so as instructions I took an old charger (800ma), cut the charger connector and exposed the 2 internal wires (one red and the other gray/black).
Then I opened the device, disconnected the battery and attached directly into the battery connector the two charger wires (in this way mobile motherboard is bypassed).
I used a small piece of tape to stop and make touch laterally the 2 wires to the connector, something like: dark wire -> [ battery connector] <- red wire
Keep in mind that the connector is something very small like (0) where left parenthesis is for dark wire and right parenthesis for the red one.
note: you can't wrong with wires, because the positive (on the battery connector) has a small white triangle.
Of course I found a way to don't move/mess wires before connecting the wall charger... I put another piece of tape at 20cm on the table to keep the cable charger fixed near the phone, then I attached the wall charger...
remember: attach the charger to the wall ONLY when you have finished to place/fix the contacts!
Waited just 1 minute because exposed charger wires was very close and didn't want to fry something... but it was enough!!
Reconnected the battery and voilĂ  the phone turned on!
The phone turned on with almost 80% of charge, all seemed to work... except that I found 2 issues... I suppose because the case didn't match perfectly anymore (I opened the device 4 times and disassembled-reassembled twice)
1st speaker didn't work, so I reopened the device and checked the speaker connector, I discovered that the speaker didn't touch very well so I put a small stripe of tape under the connector (the small vertical green stripe in the lower side of the phone) to lift it and making touch stronger with the speaker module (the black part the come out), here on Youtube for reference: https://www.youtube.com/watch?v=XE2FPmFUrQQ
2nd GPS didn't work very well (discovered after a couple of days) so I reopened the device and applied this solution that worked perfectly: https://www.youtube.com/watch?v=dfS4LpfcLfg
This is my story in the hope to help someone, if you have apparently a total dead phone and the only signal of life is a 8 times blinking red light... now you know what to do!
Regards,
Davide
Thank u for share your story
Congrats on fixing your problem!
suiller said:
The phone turned on with almost 80% of charge, all seemed to work... except that I found 2 issues... I suppose because the case didn't match perfectly anymore (I opened the device 4 times and disassembled-reassembled twice)
Click to expand...
Click to collapse
You mentioned the alignment of the phone wasn't the same as before....
Did your battery swell or change shape at all during this process?
If so could be a sign its on its way out and needs replacement.
A dying G2 lithium ion battery changes physical shape and completely alters the internal alignment of your components.
May be worth an extra 10.00 to replace your battery at this point with a new one
tiguy99 said:
Congrats on fixing your problem!
Click to expand...
Click to collapse
thank you, I was a bit frustrated because I thought to have broken the motherboard, even if it wasn't very easy I didn't surrend and I won!
tiguy99 said:
You mentioned the alignment of the phone wasn't the same as before....
Did your battery swell or change shape at all during this process?
Click to expand...
Click to collapse
I understand what you mean but no I don't think so... it seemed the same size
anyway battery has less than 1 year of life and never showed symptoms or bad behavior, right now is running as before... I can pass easily 24h without recharge
suiller said:
thank you, I was a bit frustrated because I thought to have broken the motherboard, even if it wasn't very easy I didn't surrend and I won!
I understand what you mean but no I don't think so... it seemed the same size
anyway battery has less than 1 year of life and never showed symptoms or bad behavior, right now is running as before... I can pass easily 24h without recharge
Click to expand...
Click to collapse
Sounds good!
Have you found the source of your alignment being off?
tiguy99 said:
Have you found the source of your alignment being off?
Click to expand...
Click to collapse
I checked and found nothing in particular... just a bit near the sim "area", but it seems just a sort of plastic adaptation... as mentioned before I opened, disassembled, reassembled and then closed it 4-5 times (in just few days)

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