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[Q] LG500h shuts down even if plugged in wall charger

Hi
I noticed a strange thing about LG Optimus One (500h):
Even if the phone is plugged into a wall charger or PC when running power hungry
app (wi-fi hotspot) the battery initially at 100% keeps DISCHARGING! even being supplied external power all the time!
What happens in 3-4 hours it completly dies and until charged you can't turn phone on.
My guess is that the phone still uses battery power even when the external power source is present, and power from usb only goes to charging circuits, and not to the rest of the unit.
Seems that it always needs battery.
Just tested, powered up once without battery (have to hold power button for 10 secs) and then shuts down anyway upon getting home screen.
It indicate some kinda bug or indecision by engineers, firmware boots OK, but once Android has booted it's says "No, need battery to work", so it might be
software fix.

[Q] nexus 5 red light

hi guys,
2 days ago I got a nexus 5 loved it until today I was playing a game (asphalt 8) and it just turned it self off don't know why just did now all im getting is a flashing red light I was on holiday with the phone could the plane have done something to it anyway guys please help me
thanks
Prime

No, the plane didn't do anything to the phone.
Did the battery die? Did you stick the phone on a charger after it turned off?

Best guess is that it's overheated to the thermal shutdown limit.
Leave it a while then try powering it back on
Sent from my Nexus 4 using xda app-developers app

Alex240188 said:
Best guess is that it's overheated to the thermal shutdown limit.
Leave it a while then try powering it back on
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
ive already tried all of that but 1 think ive not tried is a reset but I have data on my phone that I don't wanna lose can anyone help

Alex240188 said:
Best guess is that it's overheated to the thermal shutdown limit.
Leave it a while then try powering it back on
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
na, when you hit the safety shutdown temp, all it does is shut down, you can boot it right after. ive reached it many times(on purpose), it works.
what the op is describing sounds like the rlod on the nexus 4(red light of death). it happens when the phone thinks it went below 0%. on the n4 there are two solutions, one works sometimes, the other all the time. the one that works sometimes is leave it on the charger for several hours, then try to boot into the bootloader, then shut off the phone from there and keep charging. the method that works 100% is to remove the back cover, disconnect the battery, then reconnect it. this is a hard reset for the battery, and works 100% of the time on the nexus 4.

simms22 said:
na, when you hit the safety shutdown temp, all it does is shut down, you can boot it right after. ive reached it many times(on purpose), it works.
what the op is describing sounds like the rlod on the nexus 4(red light of death). it happens when the phone thinks it went below 0%. on the n4 there are two solutions, one works sometimes, the other all the time. the one that works sometimes is leave it on the charger for several hours, then try to boot into the bootloader, then shut off the phone from there and keep charging. the method that works 100% is to remove the back cover, disconnect the battery, then reconnect it. this is a hard reset for the battery, and works 100% of the time on the nexus 4.
Click to expand...
Click to collapse
im a newbee I cant open a phone up anyway ive tried to get in to bootloader should I just RMA the phone.

PRIME667 said:
im a newbee I cant open a phone up anyway ive tried to get in to bootloader should I just RMA the phone.
Click to expand...
Click to collapse
if it was something that happened on its own(without you tinkering with your phone), then yes.

thanks
simms22 said:
if it was something that happened on its own(without you tinkering with your phone), then yes.
Click to expand...
Click to collapse
right ill do that thanks for your help guys
PRIME667

You may want to give this procedure a try, its copied directly from Google's product support page for the Nexus 7.
Make sure there isn’t any dust or lint in the power port.
Using the original power adapter and USB cable, plug your Nexus 7 into a functioning power outlet. Nexus 7 has specific power requirements, and the USB cable and power adapter that are included are designed to meet those requirements.
Ensure the power cord is securely connected to the tablet and the power adapter.
After 1 minute, check to see if a battery icon appears on the screen.
If the battery icon appears, press & hold the Power button for 15 to 30 seconds to see if the device turns on.
If the battery icon doesn't appear, try accessing the Android bootloader menu:
Press & hold the Volume down button. While holding Volume down, press & hold the Power button for at least 10 seconds until you see an Android robot and the word Start on the screen.
Press the Volume down button until Power off is highlighted. Press the Power button to select that option.
Disconnect the charger and reconnect it within 10 seconds. A battery icon should appear on your screen.
Once the battery icon appears on the screen, allow your tablet to charge for at least 1 hour before turning it back on.

returned it
sluflyer06 said:
You may want to give this procedure a try, its copied directly from Google's product support page for the Nexus 7.
Make sure there isn’t any dust or lint in the power port.
Using the original power adapter and USB cable, plug your Nexus 7 into a functioning power outlet. Nexus 7 has specific power requirements, and the USB cable and power adapter that are included are designed to meet those requirements.
Ensure the power cord is securely connected to the tablet and the power adapter.
After 1 minute, check to see if a battery icon appears on the screen.
If the battery icon appears, press & hold the Power button for 15 to 30 seconds to see if the device turns on.
If the battery icon doesn't appear, try accessing the Android bootloader menu:
Press & hold the Volume down button. While holding Volume down, press & hold the Power button for at least 10 seconds until you see an Android robot and the word Start on the screen.
Press the Volume down button until Power off is highlighted. Press the Power button to select that option.
Disconnect the charger and reconnect it within 10 seconds. A battery icon should appear on your screen.
Once the battery icon appears on the screen, allow your tablet to charge for at least 1 hour before turning it back on.
Click to expand...
Click to collapse
I got a new one thanks for all your help

I just had a red blinking light and no charge indicator situation, as well. Nothing seemed to work: plugged it in for 20 minutes, unplugged it for 20 minutes, plugged it back in...and after another hour on the charger I finally noticed the blinking red light had gone away, and hitting power brought up the charging indicator as normal. Booted right up and has been fine since.

My Nexus 5 just started doing this. I was in the middle of playing a game while my phone was on the charger (Brave Frontier) and suddenly the screen went dead and I had the red flashing light. I'm guessing I was using the juice faster than the charger could fill it so I killed it. I couldn't get the battery indicator to come back but as I was typing this the red light finally stopped flashing and the phone rebooted.

This happened to my N5 today. I was on a Hangouts video chat while plugged in from wall charger and I noticed the battery was actually draining rather than charging. So I figured hangouts was discharging the battery faster than the charging. Eventually it went to 0% and stayed that way for a while and suddenly the screen went off and the LED started blinking red. Followed the steps posted here, plugged in, left for a while and the blinking stops and phone boots up.
Never Hangout-ing with low charge ever! D:

[Q] Won't power on

My Nexus 5 won't power on or show a charge light... I had it on a wireless nexus charger last night today it is dead. I plugged it into the original charger no luck, I plugged it into my computer with a different cable no luck. Anything else I should try?

get anything if you hold down the power button for 10 seconds (plugged in and unplugged)? can you boot to the bootloader (for fastboot)? sounds like the battery is dead to me. my nexus 7 did that. had to use the original charger and plug it in for over an hour before it would give me any signs of life. perhaps your wireless charger failed you or the device was shifted off the coils.

From another thread
"Originally Posted by brainmaster View Post
@ OP and others having that problem.
I had the same with my N5 after flashing a custom ROM. N5 didn't wanted to boot.
But, when holdin both volume buttons and power button for more then 60 - 90 seconds, it powered my N5 on.
After powering it off - it still didn't wanted to boot, until I flashed over the factory image.
So - if you have problem with starting / booting the device, it might take all 3 buttons and holding them all for more then 60 seconds."
so holding down all three buttons for more than 60 seconds worked

Moto G doesn't charge or power up

I'm sorry if this topic has been discussed so many times, but I couldn't find symptoms like the ones my Moto G has.
Two weeks ago, my Moto G reached out to 0% and shuted down. After that I've tried the following possible fixes:
Leave the phone out a day off the charger and then charging it for 3-4 hours or even all night long.
Pressing the power button for several minutes while connected to the wall charger.
Connecting it to several chargers (750, 1500 and 2000 mah).
Taking out the battery cover, disconnecting the battery flex and then reconnecting it.
A few things I noticed were that my phone came with a 450 mah charger in the box, and when I connect the phone, the LED light lits continuosly and it never goes off.
When I tried with 1500 and 2000 mah chargers, the LED lits too, and while pressing the power button, the LED light flashes one time after 2-3 minutes, and then flashes again after 5-6 minutes. But these flashes are very glimmer. And no matter what I do, the screen never lights up, and the LED light never goes off.
Please, I desperately need your help. I bought this phone two months ago and I've unlocked the bootloader, so I don't think warranty will cover the phone.
Thank you very much.

if you press power + vol down does the phone goes to recovery? i figured out that even if the phone does not boot you can go to recovery (or is it bootloader?) and than go to barcodes and press vol up. some codes will show up. after a min or so it will turn off. repeat this until the phone wont even boot to recovery. now plug it in the charger and hold power button for 2-3min and than leave it charging for an hour and than try to power it up. if it will not work try to unplug it and plug it in again after a minute and than hold the power button again for 2-3min and leave it charging for an hour again. i got my moto g booted after few tryes.
it seems that moto g wont charge until the battery is completely drained.

I'm sorry but the phone won't boot into bootloader mode neither. Are there any other recommendations? Thanks for your reply.
EDIT: I'll see if I can record a video of the phone's behavior. Maybe it could help.

How to resolve this dead battery issue...
rodrigojfuentes said:
I'm sorry if this topic has been discussed so many times, but I couldn't find symptoms like the ones my Moto G has.
Two weeks ago, my Moto G reached out to 0% and shuted down. After that I've tried the following possible fixes:
Leave the phone out a day off the charger and then charging it for 3-4 hours or even all night long.
Pressing the power button for several minutes while connected to the wall charger.
Connecting it to several chargers (750, 1500 and 2000 mah).
Taking out the battery cover, disconnecting the battery flex and then reconnecting it.
A few things I noticed were that my phone came with a 450 mah charger in the box, and when I connect the phone, the LED light lits continuosly and it never goes off.
When I tried with 1500 and 2000 mah chargers, the LED lits too, and while pressing the power button, the LED light flashes one time after 2-3 minutes, and then flashes again after 5-6 minutes. But these flashes are very glimmer. And no matter what I do, the screen never lights up, and the LED light never goes off.
Please, I desperately need your help. I bought this phone two months ago and I've unlocked the bootloader, so I don't think warranty will cover the phone.
Thank you very much.
Click to expand...
Click to collapse
Answer.....I have exact similar problem for last one week and i figured it out how to recover..u have to leave the phone for 24 hours to discharge and then open the battery...See youtube tutorial how to open it....
then go to any local mobile repairing shop and ask him to charge or boost your battery..they have some kind of boost machine..ask them to do it for 10 min the put on the battery and hold the power button led will blink 3 times put the phone in charge i guarantee you u ll get ur moto g back....i have also sucessfully removed the outer glass from digitizer,,...but that another story...hope i helped you...

I recently ran into this... I let my XT1032 battery deplete to 0% and then had a difficult time getting it to recharge.
When the phone was plugged in to any of these:
- my desktop PC
- powered USB hub
- game console USB port
it powered on briefly and showed the white screen with 0% battery indicator. The screen would then go blank and then after a few minutes the phone would boot successfully to my lock screen. However, it seemed to stop taking charge at this point and after a few minutes would shut itself down again. And the cycle would repeat.
I was able to get it to boot to the bootloader through normal means (Vol. Down + Power). But it behaved similarly in that it seemed to stop taking a charge and so after a few minutes it would power down as the battery ran out. And the cycle would repeat.
What finally worked for me was to use a different charger (and cable). I ended up using the charger that came with my tablet (Nexus 7) and the phone charged up the battery without issue -- I'm not sure whether the charging cable made a difference.
There's some discussion here:
http://androidforums.com/threads/moto-g-died-and-now-wont-charge.837568/
that suggests that when the phone hits 0% battery, it becomes fussy about the charger and that a high charging current is required or else the charging circuit shuts down.
My experience would support that theory. Seems a rather dumb design on Motorola's part...
Lesson here is to not let your device run down to 0%!

Hardware Issue - Solid Red Light with Battery, Power Cycle without

Hello All,
I hope this is the best forum, but please give me advice if it is better somewhere else.
I recently dropped my Nexus 5, cracking the screen. I am fairly DIY, so I ordered a new screen on eBay. Although I had never opened the Nexus 5, I followed some online guides, and I thought the process went fairly smoothly. However, after it was all assembled, the phone was completely dead. I switched back to the old screen, still dead. I picked it up to try again. I can put the phone in to the following states (with the back cover off):
Battery Connected, USB Power - Solid red light. Unresponsive. Power + Vol- just cycles red light
Battery Disconnected, USB Power - The screen powers on, shows the "starting to charge" logo. The device power cycles approximately every 5 seconds. Holding the power button will show the Google logo (aka, startup), but continues to power cycle every 5 seconds.
Battery Disconnected, USB Power, then battery connected - With the battery disconnected, it will show the charging screen. I can then connect the battery and completely start it. The device appears to be fully functional (sans the rear speaker, but I am not concerned about that at the moment). The battery always indicates 0% (Unknown). However, if I unplug the USB power, the device will stay powered.
Any ideas on what the issue could be? Bad battery? Bad main board? Or, ideally, a loose connector.
Any insight would be appreciated.
Dan

Update: I am unable to replicate the red notification light. Now the phone is unresponsive if the battery is connected.

Could be anything really. Only a professional would know what's the issue after examining the device.
PS: Questions go in QnA and not in General.