Htc hd2 blinking red and green?
My htc hd2 is Blinking a red and green light, while plugged into changer. Nothing new, (text or email) phone doesnt wanna take charge. and wont stay on.... any ideas? never been dropped,
hanissyazwan said:
Htc hd2 blinking red and green?
My htc hd2 is Blinking a red and green light, while plugged into changer. Nothing new, (text or email) phone doesnt wanna take charge. and wont stay on.... any ideas? never been dropped,
Click to expand...
Click to collapse
Had this today.. My middle battery contact was bent so i guess it wasn't contacting properely..
Took battery out, straightened pin and all is ok again....
Hope your is the same as it's easily sorted..
Yea, that basically means the phone can't charge. Be it because the battery has overheated, its a different battery, a contact is bent or dirty, or anything. It is related to not being able to charge the battery though.
i got this last night for the first time. my phone wasn't hot and never dropped or bumped. i just rebooted the phone and it didn't flash anymore...
crispy514 said:
Had this today.. My middle battery contact was bent so i guess it wasn't contacting properely..
Took battery out, straightened pin and all is ok again....
Hope your is the same as it's easily sorted..
Click to expand...
Click to collapse
but,, i just open battery cover once. the first time i put simcard. i think its nothing to do with battery connector.
now my battery just left 10% and its wont charging..
update***
i already do what u suggest me. but the notification LED is just keep repeating orange green,orange ,green.. while on charging.but the battery wont charge..
oh, this prob comes when i use phone for call about 15minute while phone on charging last night.
i wonder why..
rlee008 said:
i got this last night for the first time. my phone wasn't hot and never dropped or bumped. i just rebooted the phone and it didn't flash anymore...
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Click to collapse
oh! thats sound scary...
happened to me a few days ago i left it in my car for a bit it got hot so i figured thats what it was
battery got fried? or just dirty battery connection needs a contact cleaner?
This happened to me once, after "playing" a lot with Igo, the battery was extremly hot; so i cooled it down in the car putting my leo directly in front of the A/C exit, as it cooled down it stopped the blinking.
Had this happen to me a few days ago, noticed 2 things.
1) 2 pins on my battery connector were bent - attempted to realign them.
2) CPU was overheating while running multiple apps AND charging at the same time; seems to be a bad combo in the summertime...I could barely touch the back of my phone it was so hot.
I'd suggest that if you're running a lot of apps and/or charging the HD2 that you take off the silicone cover it came with (if you have it on). Even the fastest processor will get completely fried if it overheats, and I certainly don't see a fan running on the HD2
I've yet to have the LED flash at me again, but I can almost guarantee that these LEDs are flashing because of overheating or a bad connection.
Best of luck.
carlosmozas said:
This happened to me once, after "playing" a lot with Igo, the battery was extremly hot; so i cooled it down in the car putting my leo directly in front of the A/C exit, as it cooled down it stopped the blinking.
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Click to collapse
Same with my HD2. Had it twice this week running Navigon, Screen was set to bright, bluetooth on and phone was charging. Weather was hot, above 30 C and sun was shining from the rear directly to the PDA. And not to forget: My car is a convertible.. Phone was very hot and rebooted several times until I recognized the overheating. LED was flashing red and green. Does anybody know an app to control CPU temperatur or to 'underclock' CPU of the HD2?
I had the same issue today!
I believe it was because of the heat too.
hase01 said:
Same with my HD2. Had it twice this week running Navigon, Screen was set to bright, bluetooth on and phone was charging. Weather was hot, above 30 C and sun was shining from the rear directly to the PDA. And not to forget: My car is a convertible.. Phone was very hot and rebooted several times until I recognized the overheating. LED was flashing red and green. Does anybody know an app to control CPU temperatur or to 'underclock' CPU of the HD2?
Click to expand...
Click to collapse
battclock has an option to check battery temperature
ephestione said:
battclock has an option to check battery temperature
Click to expand...
Click to collapse
Thanks great tool!
if you experience overheating, could you have a look here? I created a new thread to do some temperature monitoring:
http://forum.xda-developers.com/showthread.php?t=716288
I just had the same thing red green blinking. it was due to overheat. was sharing internet to my computer and it got very hot, now I put my phone top of antec twelve hundred's 20cm fan and it stopped blinking and got cool
And thank you for the answer why it was doing that because I got scared when it did that
I think it is battery issue, I experienced this once during USB connection with desktop(and several times with Touch Pro in car). These Li-Ion batteries have a circuit, which prevents charging when temperature rises above certain value. As mentioned in posts above, you can see this in summer, using navigation in car while plugged in to 12V. It is a normal operation of battery, preventing it from destruction from overheating. Simple solution is to have it cool down for a while.
Don't know how CPU usage relates with this(maybe the device takes more power from charger), but at least CPU generates also some temp, which warms the battery from outside...
I can always reproduce this error by uncharging the battery until the phone dies in android and then, start the phone and directly after that insert the charging cable.
I have no idea what this means but this is how I can reproduce it.
(If anyone wonders why I always uncharge it until it dies in android, it is because of some weird reason android doesn't show battery status correctly and dies around 10%)
Htc hd2 blinking red and green?
Hi everyone, a couple of this to possibly cloud the issue:
1/ I'd noticed bent connector pins quite soon after I'd received my HD2 - Figured they were supposed to be that way?!
2/ The LED/ Charging issue has, for me, started only recently. Even when the handset is cool (under 25c), no apps are running and the battery has 85% capacity remaining.
3/ Same issue on both of my batteries.
Stumped!
Even stranger......
If I remove the sim and charge while powered off - no problem. Turn it on? Flashing O&G LED again.
umiss said:
I can always reproduce this error by uncharging the battery until the phone dies in android and then, start the phone and directly after that insert the charging cable.
I have no idea what this means but this is how I can reproduce it.
(If anyone wonders why I always uncharge it until it dies in android, it is because of some weird reason android doesn't show battery status correctly and dies around 10%)
Click to expand...
Click to collapse
I just experienced the very same when my HD2 died while running Android:
I was checking the battery level - 13% - and suddenly the screen went black and I couldn't swich the device on again.
I plugged the cable in and it began to charge. I immediately switched the device on to see if it's ok and while booting and even inside WM the indicator was blinking orange and green until Android was running again - then it was only glowing orange and charging fine.
After 3(!) Hard resets the problem disappeared?
These were over a week so battery or software issue I can't say.
Related
hi
I've got a strange problem with my TG01. Yesterday the phone worked normally. Overnight the battery got empty and the phone turned off. Today I noticed this and connected the phone to the charger. Now the strange thing is, the red LED (indicates loading of the battery) is on, but after a few seconds it turns of for a few seconds and turns on again. I can notice no "rhythm" in it. What could that be? Btw. The phone isn''t starting up (I alreadey pushed the power button for atleast 10 seconds.
ROM: MiROM 12 GER (worked fine for a few days)
@ mod: If this is the wrong forum, please move this thread
tmmk3x said:
hi
I've got a strange problem with my TG01. Yesterday the phone worked normally. Overnight the battery got empty and the phone turned off. Today I noticed this and connected the phone to the charger. Now the strange thing is, the red LED (indicates loading of the battery) is on, but after a few seconds it turns of for a few seconds and turns on again. I can notice no "rhythm" in it. What could that be? Btw. The phone isn''t starting up (I alreadey pushed the power button for atleast 10 seconds.
ROM: MiROM 12 GER (worked fine for a few days)
@ mod: If this is the wrong forum, please move this thread
Click to expand...
Click to collapse
I had something similar when I discharged battery too much ( during certain experiments ). If You have opportunity to charge battery a little bit in other place , not tg01, do it, put battery again in tg01 and check charging again. This time charging ( red LED still on ) should be stable.
Regards
fxdjacentyfxd
any method for charging externally??
thanks for your reply. do you know a method for charging externally?? (I do nat have an other TG01). Or should it also load with the blinking red led??
tmmk3x said:
thanks for your reply. do you know a method for charging externally?? (I do nat have an other TG01). Or should it also load with the blinking red led??
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Click to collapse
In my case it fixed itself relatively quickly. Few times I was removing charger from power outlet, puting it again, watching if red led is stable and if not repeating procedure but... I am not sure 100% it was exactly this way .It does not have to be in Your case.
It is not difficult to charge such battery externally because it is rather simple battery. You have +, temp and - pads. You need simply utilize only + and - and ensure from any external charger max current about 0.5A and max voltage 4.2V ( absolutely max 4.25V ).
Regards
fxdjacentyfxd
thanks
ok i will try this.
i had the same problem when i used aragorn's rom. what i did was some spare cables isolating tape and conected it to 9v battery charger (no kidding). for the first time i was checking it every 30min or so but later i left it overnight and in the morning everything was fine. Battery was charged in around 40% and i put this on charge.
Try flashing back to the stock tom,hr, flash custom rom,hr, hopefully problems solved,i have had to do this and it usually solved my problems
Sent from my GT-P1000 using XDA App
fixed it
ok, my toshi works again.
Charged it externally with an adjustable dc power source. ( Hoping that nothing blows up was my main concern with my setup)
It looked rather scary, but worked. (battery up to 80% in half an hour (with 4.2V and 0.55 mA)
tmmk3x said:
ok, my toshi works again.
Charged it externally with an adjustable dc power source. ( Hoping that nothing blows up was my main concern with my setup)
It looked rather scary, but worked. (battery up to 80% in half an hour (with 4.2V and 0.55 mA)
Click to expand...
Click to collapse
Excelent work . Congratulations. As I supected detecting this behaviour, next error in tg01. This time in charging hardware.
Regards
fxdjacentyfxd
so every once in a while, i'd say every 4 or 5 days... i'll take my phone off the charger and start my day like normal. but on these days, (sometimes i notice and do a hard reset before all this happens) the upper half of the phone will get really warm and even if i do absolutely nothing on my phone, my battery will drain from full to dead in 3-4 hours.
has anyone else noticed this? i'm thinking it may be some sort of cpu cycle leak or some sort of infinite loop some background driver might get itself into.
its pretty annoying if i dont catch it right away and an hour after i unplug my phone while i'm at work to take my phone out of my pocket and have it over half battery gone already.
sheep_duck said:
so every once in a while, i'd say every 4 or 5 days... i'll take my phone off the charger and start my day like normal. but on these days, (sometimes i notice and do a hard reset before all this happens) the upper half of the phone will get really warm and even if i do absolutely nothing on my phone, my battery will drain from full to dead in 3-4 hours.
has anyone else noticed this? i'm thinking it may be some sort of cpu cycle leak or some sort of infinite loop some background driver might get itself into.
its pretty annoying if i dont catch it right away and an hour after i unplug my phone while i'm at work to take my phone out of my pocket and have it over half battery gone already.
Click to expand...
Click to collapse
I have noticed the 'staying warm after charging sometimes' phenomenon....I also sometimes leave it charging all night but it doesn't seem to charge, even though the light is on. I think this is somehow connected to the wonky power button behavior...I get a green light on full charge sometime....i've never seen it turned green while powered off.....sometimes it won't turn on while plugged in, sometimes I need to do a battery pull, sometimes the SD card too, sometimes I need to press the power button a million times or hold it extra extra long....sometimes the charging light doesn't come on and it does charge, sometimes the light comes on and it doesn't...sometimes it gets really hot after charging and doesn't cool down after sitting idle....I usually just shut it off for a minute and turn it back on...somehow.
This is definitely one of my pet peeves with this phone...I also think this is linked to some phones never turning back on again, corrupted bootloader/recovery after a 'fastboot' shut-down or hot restart...
I'm diggin' the phone, don't get me wrong, but....I can't wait for the nPrime...
yeah, but it's less so the problem of it getting warm (pre or post charging) and moreso that it will start heating up a lot and you can tell that something is running the battery down in the background, the only way to stop this is to do a battery pull restart.
has anyone had similar issues with their phone going from full battery to dead in a few hours because of a hidden bugged process or something similar?
bump 10 char
I had that happen after tuning airplane mode off then back on. But that's itt
Sent from my HTC Evo 3D.
This happened to me this morning, first time and it was very weird. I've left it charging overnight per usual and this morning when I woke up and unplugged it, it had only 10% battery left. I tried charging it in my car on my way to work and have it plugged in to my computer USB now. I disabled a bunch of stuff as shown on this thread:
http://forum.xda-developers.com/showthread.php?t=1141221
And it's now starting to charge.
I did however just update to showdown rom and had setcpu on 1.7 conservative. It still should have charged but I'm guessing a stuck process/bug drew all the power last night.
Hey there,
I have my Vibrant for a good year now since it came out pretty much. Last week it just stopped charging out the blue. The battery is completely empty and shows a thermometer with a warning sign and stops charging seconds after its plugged in. So I assumed it might be a battery malfunction and I got my spare battery in as soon as I came home and tried charging - same problem. I think it is highly unlikely that both batteries fail at the same time. Therefore, I assume there is something wrong with the temp sensor in the phone. I saw a few people have a similar problem with the epic 4G, but the discussion got really side tracked by other issues. My phone is rooted, but I was running stock froyo, so that shouldn't be the problem or should it?
I just wanna know if anybody had the same problems and if there is a quick solution, I google and forum searched a while but as soon as you throw in the term battery it gets spammed with battery life discussions.I just checked my files I have on the phone, apparently I have the premium insurance - does that mean I just can go to the next Tmo store and get a replacement? Any feedback is greatly appreciated.
Phill
Well for your problem, i suggest you try a different rom and see if the problem persists... maybe its a bug
And as for insurance, you mail the phone in and pay a deductible, which should be like 135$ or so. They send you a refurb.. or if you say it wus lost, you dont have to mail in phone
Sent from a cell tower to the XDA server to you.
thanks for the quick reply. Is there a way to reflash without a battery?
I don't see it as a bad thing. If your phone gets too hot and keeps charging that's going to burn something inside. When my phone won't charge I know I have let it down. So it can cool down. But to fix your problem reboot the phone. You can keep charging it after it boots up
Sent from my SGH-T959 using Tapatalk
pro1st said:
thanks for the quick reply. Is there a way to reflash without a battery?
Click to expand...
Click to collapse
As long as your phone can run successfully for a couple minutes, i dont see why not
Sent from a cell tower to the XDA server to you.
Mine did something similar. I picked it up after putting it on the charger. It was hot and would not come on. I unplugged it and let it cool off for a while and it cleared up.
I got that message once...
Vibrant was in a car dock, with power.
It was *HOT* out and sun was hitting the back of the unit. (A/C on of course)
Google Navigation was running (display brightness max)
Google Listen was running
Bluetooth was passing music to a speakerphone
When I run the phone with that setup, the charger can't even keep up with the phone power needs. The battery level slowly drops. No question the phone is working hard.
This was a true heat issue... I removed the charger and turned off the display to let it cool off a bit. (I was almost home).
So the question again, is your phone hot or is it a false reading?
Robert
Hey,
I am sorry I didn't clarify the actual battery temp. It is normal - so its neither in the sun or in a too cold spot when I try charging it. The phone probably runs for one for a few seconds before turning off so there is no chance of the battery stats wipe. I think I will try to find an external charger and try to charge the batteries this way to have enough juice for flashing a new rom. Thanks for all the replies!
Does it charge the battery with the phone off? If not, I don't think a new ROM will help.
Hey there! Wondering if you got around to solving this. I've got a Vibrant doing the same exact thing. Battery being cool it sais that is overheating. Did changing the ROM solved it or not?
c0olcast said:
Hey there! Wondering if you got around to solving this. I've got a Vibrant doing the same exact thing. Battery being cool it sais that is overheating. Did changing the ROM solved it or not?
Click to expand...
Click to collapse
Sorry for resurrecting an old thread, but a resolution never seemed to be made here. Has anybody found a fix to this?
As of yesterday, my wife is having the same issue with my old Vibrant phone which she now uses. It's flashed with Bionix V 1.3.1 and Tigerblood overclock to 1.2ghz. This could be the issue, the Tiger Blood overclock, but I'm not sure. I'm out of the country for three weeks and currently she's left with a dud of a phone that keeps giving her the temperature warning in the triangle when plugged in while the phone is powered off followed by it stop charging. When she turns it on, she gets to the SD card check and then the phone completely freezes. Once in a while it's able to stay on for a minute or so before freezing, but more often than not the phone does not fully turn on and just goes frozen after a few seconds, sometimes at the Tigerblood logon screen before making it to the desktop. Me being 4000 miles away doesn't make it easier to help her but I've recommended she leave the phone unplugged, battery out for the night to see what happens. I also told her to take off her silicon case thinking maybe that has something to do with the overheating. Well after 7 hours of her letting it sit to cool off like that, with the case off, she plugged it back in and is having the same issues as yesterday. Absolutely no progress made. One of her colleagues said she should try leaving the phone in rice confused:) so she's giving that a go and another guy in a phone shop who she went to for advice after work said that the motherboard might need replacing. I'm convinced all it needs is to have the Tigerblood removed or reflash a rom onto it but there's really no knowing unless I have it in my hand.
Is there any quick fix to this problem without having to do all that? Surely there must be a way to charge the phone without it heating up and freezing up. She's tried plugging it into different rooms, on her laptop, etc, none seem to get rid of the temperature problem. I've had the phone since August 2010 and never had any issues with it. I also never once saw that temperature error message so was taken aback when she showed me it over skype. I just upgraded to the S3 and gave her the phone 2 weeks ago, but surely it shouldn't just die out just like that? Thought the Vibrants were made tougher than that?
Any help would be greatly appreciated. Much thanks in advance
Its most probably a kernel issue or a bug in the rom; so the only way to find out is to flash another kernel/rom..
P.s Vibrants are rock solid
Sent from my SGH-T959 using xda app-developers app
Update- Phone doesn't even turn on anymore, no signs of life
danny_extremex said:
Its most probably a kernel issue or a bug in the rom; so the only way to find out is to flash another kernel/rom..
P.s Vibrants are rock solid
Sent from my SGH-T959 using xda app-developers app
Click to expand...
Click to collapse
Will be looking into reflashing another kernel/rom when I get home in a few weeks time, but it must be noted that the phone has been showing no signs of life for the last few days now. After letting it sit out for 7 hours on the first night, battery out and everything, she went to plug it in the following morning and this time absolutely no notification came up. Not even a lighting up of the phone or anything. No signs of life at all. Every time she hit the power button nothing occurred. The phone still heats up and after a few minutes while plugged in and gets very hot to the touch again but no matter how many times she attempts to turn it on, nothing happens.. She's tried plugging it into her computer via usb, into electric sockets in other rooms, even in the bathroom in one of the 115 volt electric shaver outlets in the bathroom (we live in the UK currently), and none of these ideas worked. Still no signs of life. It has been this way for three days now and is frustrating as I can offer no advice to her to get the phone to turn on anymore.
What on earth can be the problem? Has this happened to anyone before? And is there a fix to this or can we consider the phone to be a paperweight at this point?
polosprt009 said:
Will be looking into reflashing another kernel/rom when I get home in a few weeks time, but it must be noted that the phone has been showing no signs of life for the last few days now. After letting it sit out for 7 hours on the first night, battery out and everything, she went to plug it in the following morning and this time absolutely no notification came up. Not even a lighting up of the phone or anything. No signs of life at all. Every time she hit the power button nothing occurred. The phone still heats up and after a few minutes while plugged in and gets very hot to the touch again but no matter how many times she attempts to turn it on, nothing happens.. She's tried plugging it into her computer via usb, into electric sockets in other rooms, even in the bathroom in one of the 115 volt electric shaver outlets in the bathroom (we live in the UK currently), and none of these ideas worked. Still no signs of life. It has been this way for three days now and is frustrating as I can offer no advice to her to get the phone to turn on anymore.
What on earth can be the problem? Has this happened to anyone before? And is there a fix to this or can we consider the phone to be a paperweight at this point?
Click to expand...
Click to collapse
Some kernels require a certain amount of power to fully boot the phone up and will not charge until it has 5% battery or so. I personally think her battery may be unable to hold a charge or like I said before it doesn't have enough juice to boot the phone because of the kernel. There is a way to charge the battery with the phone off. You can use ANY kind of usb cord, I used an old printer usb cable when I had to do this. All you do is cut off the side that is not usb and strip the positive and negative wires(red and black), then place the stripped wires on the positive and negative connectors on the back of the phone and insert the battery (make sure it's a snug fit). Plug the usb end into your pc and charge the battery that way, DO NOT let charge for over 2 minutes at a time. Wait five minutes and do it again if you have to. If she gets it to boot up, I would definitely flash a new kernel first to see if thats how the problem originated.
Sent from my SGH-T959 using xda premium
After the Amber update both my phone and my wife's phone randomly will play the "charging" notification sound when sitting on the wireless charging pad. The screen also lights up. This is annoying in the middle of the night. Is anyone else seeing this?
RGBell said:
After the Amber update both my phone and my wife's phone randomly will play the "charging" notification sound when sitting on the wireless charging pad. The screen also lights up. This is annoying in the middle of the night. Is anyone else seeing this?
Click to expand...
Click to collapse
The new update changed the sensitivity to the position that the phone is on the charger. It has to be dead center now or it will not link right.By dead center I mean equal amounts of the phone overhang front and back.
Solarenemy68 said:
The new update changed the sensitivity to the position that the phone is on the charger. It has to be dead center now or it will not link right.By dead center I mean equal amounts of the phone overhang front and back.
Click to expand...
Click to collapse
I was very careful to place the phone centered on the pad and it still does it. Do you have a link to an article about this change?
RGBell said:
I was very careful to place the phone centered on the pad and it still does it. Do you have a link to an article about this change?
Click to expand...
Click to collapse
No just from my own experience. Mine did it at first but I noticed I had not centered it. After centering it, it quit. I also noticed it now chimes or makes a notice when it reached full charge. No way to disable from what I see.
I've noticed that the wireless charging will eventually stop (seemingly after the phone is fully charged and has been sitting on the charger for a while) and the phone will power itself from the battery. So, for example, if it were to reach full charge during the night, in the morning it may be at 90% even though it's still sitting on the charger. Has anyone else noticed this?
jblanken64 said:
I've noticed that the wireless charging will eventually stop (seemingly after the phone is fully charged and has been sitting on the charger for a while) and the phone will power itself from the battery. So, for example, if it were to reach full charge during the night, in the morning it may be at 90% even though it's still sitting on the charger. Has anyone else noticed this?
Click to expand...
Click to collapse
I only had this issue with a third party charger. When using the nokia charging plate, this issue does not arise. I can see no battery drain in the battery app for the time periods in which the phone was on the nokia charging plate.
Localhorst86 said:
I only had this issue with a third party charger. When using the nokia charging plate, this issue does not arise. I can see no battery drain in the battery app for the time periods in which the phone was on the nokia charging plate.
Click to expand...
Click to collapse
I see this with Nokia chargers. Both the charging plate and the JBL PowerUp speaker.
Still happening
Solarenemy68 said:
No just from my own experience. Mine did it at first but I noticed I had not centered it. After centering it, it quit. I also noticed it now chimes or makes a notice when it reached full charge. No way to disable from what I see.
Click to expand...
Click to collapse
My phone continues to play the notification sound and turn on the screen several times during the night. I am wondering if it is chiming when it reaches 100% and then it stops charging, looses some charge, turns back on and then chimes at 100% again. I checked the phone and it was quite hot. This is annoying and I now have set it to vibrate so it doesn't wake me up. Nokia/Microsoft needs to fix this.
RGBell said:
My phone continues to play the notification sound and turn on the screen several times during the night. I am wondering if it is chiming when it reaches 100% and then it stops charging, looses some charge, turns back on and then chimes at 100% again. I checked the phone and it was quite hot. This is annoying and I now have set it to vibrate so it doesn't wake me up. Nokia/Microsoft needs to fix this.
Click to expand...
Click to collapse
Mine was doing that but if I place it on the charger so that the bottom edge with the speakers line up with the same edge of the charger end with the LED then the phone will stay quite all night. I really think the new update raised/lowered the sensitivity of the proximity/nfc sensor in the phone.
I recently picked up this galaxy s6 edge from a friend that upgraded to a new phone. It won't turn on, neither to android recovery, nor to download mode nor the android. I charged it via wireless charging overnight and i tried for around an hour with a usb cable. What do i do?
same issue i am facing, i tried original charger, wireless charger and fast chargers from many different brands. but all failed. The device only gets warm/hot while charging and nothing happens. neither download mode nor recovery mode works. I am kind pf stuck without any solution, my device was used very rarely and its like an brand new device. Doesn't know what to do, if you find any solution then please let me know too. thanks in advance
Same problem. If I press power button very long, blue light comes on. Then it's stuck and stays like this until battery is flat. Battery charging is not possible: device heats up (tried USB and Qi), but battery doesn't take any charge.
So I opened the S6 and checked the battery directly. I can charge it directly with a lab power supply and when I plug it in and press power button, the blue notification light comes on again until battery is empty again. I can also see that only ICs get hot, but not the battery when plugging in USB.
So, it's definitely some hardware fault. I suspect power IC that is not able to power up the screen. But I don't know. I will investigate further but it looks difficult. However, I have seen many YouTube videos with same symptoms, but problem was always different than mine :/
Hi guys,
This thread is 2 months old, any of you managed to fix the problem?
I am having very similar problem. My phone was on a shelf for about a year and a half. Before now it was working perfectly. Now I can't charge it via USB or power adapter. When trying to power it up or get into download or recovery mode, nothing happens. Computer does not see it. Tried different cables, USB ports, power adapters..nothing.
The only thing that is happening to the phone is the battery logo appears when trying to charge it, though the green bar does not go over battery, only the empty grey battery with lightning icon in the middle. Also the screen does not go dark after a few seconds as it should and the red/blue LED does not turn on.
Is this the signal from the phone, that the battery is to deeply dischareged and cannot be charged again? I am googling all over the web and can't find anybody talking about what phone does in case of to low voltage on battery.
PS back does not seem to be bloated, USB port was working perfectly last time used
Please try to help, you are my last stop before opening the phone and start probing the poop out of motherboard to see what gave.
EDIT: something interesting happened just about an hour after my post. The battery suddenly started showing % of charge and the green bar started running, computer recognized the phone.. as everything should be.
My FIX: leave the phone pluged in and charging for about 3days and it will start working again.
My semi professional explenation of fix and problem: the phone has a ''backup or reserve'' battery. It is actually main battery but the last I think I read somewhere it is 20% of capacity, is reserved for phone exclusively for the clock and all other electronics that need power when switched off. Now these 20% probably were discharged due to laying around for almost 2 years.
It took me 3 days of charging to fill up these ''20%'' I guess. Probably because Lithium batteries are charged VERY slow at very start and end. This is safty procedure for ALL Li batteries.
If any expert can confirm my conclusion please do so, to help other people.
To answer partialy to my question: The phone tells you battery is ''deep'' discharged when you only see the charge icon without the green bar.
In the mean time I was writing this edit I came up to 4% battery and turned it on!
BR Friend