[Q] Charging while powered down - One (M7) Q&A, Help & Troubleshooting

I've never understood how the screen works while charging, while the phone is off. Is this some sort of system partition, or low powered mode? The reason why I ask, is whenever I try and charge it, the screen stays on, along with the LED Notification light. It never changes, and thus, I can never tell when it's 'fully' charged.
Any help? Is there a way to fix this by flashing something? I feel weird having my screen on all night trying to charge my phone.
Also, I forgot to mention, I can't turn it on, while it's off and charging. If I try to, it seems to freeze, and the only way to turn it on, is to disconnect, and hold the power button until it reboots. Have I messed up something crucial?

Related

How to charge phone powered off?

I can't seem to find a way to charge the phone while off. If I turn it off then plug the power cord in, the phone turns on. If I plug the phone in then power off the phone turns back on.
Any ideas?
There's nothing to be done about it.
I contacted HTC about this in the past and their take on it is that its the nature of the beast. If the charger is plugged in, then the phone will stay on.
Sorry
Is there a reason you would want the phone to be off while it's charging?
Can't see why you'd want the phone switched off at all.... I'm fairly certain the phone needs to be switched on so it can manage the charging process, monitor when the battery is fully charged and therefore prevent overcharging which would wreck the battery.
But the concept of switching off the phone at all is.....weird. It's an "always on" device!
http://pocketnow.com/windows-phone/windows-phone-7-devices-only-charge-while-powered-on

[HELP] Phone stays on for 30s only .

So, I posted this on facebook group, but maybe there is someone in here who can help and isn't part of the group, so i'm posting here too .
So guys, i have a situation here, i was charging my phone, everything was okay, then it started to rain and started to lightning, the next day, when i took my phone off the charger, it wasn't working, it wasn't turning on, then i brought it to the support, they said everything was fine and even the phone was turning on, but not getting out of the logo screen, they didn't know how to enter in S/W mode, so i took it back and now the phone is with me, but it doesn't wanna turn on, even in the S/W mode. Then i ask you guys, there is anything i could do? If there is, please let me now, or do they lied to me ? I didn't want to get rid of my OB that soon. PS: I was using CM10.1 with ZeroGravityKernel.
The phone now turn on sometimes, stays awake for 30s and then blacks out .
I'm able to enter S/W mode but can't use Smartflash, it takes a least 2 minutes to use it D: .
what do you mean by only 30s? Like the battery dies after 30s or it just turn off?
Before sending your OB to service again change the battery instead it might not function well anymore due to the lightnings.
wait, Using smartflash you don't need a battery! So if your phone still turns off after 30s... it's actually the phone itself then...
try an "active boot" :
remove the battery, hold power key, then plug the charger until the logo appears. if the airplane mode was OFF, phone will boot, then reboot and will display the battery missing mesage. you may activate the airplane mode in a very short time before this occurs. from there you'll see if the phone stays ON or not. If not, that means this is a software or hardware issue. if it stays ON, that means there is a problem with the battery itself, or a charging issue

[Q] [Help Thread] Nook HD not booting at all

I recently went on a 3 month trip. Before I left, my nook was working perfectly fine, when i got back, it didn't work at all. It's not dead because i left it plugged in overnight but it still didn't turn on. when i plug it in the LED goes from orange to green and then off (or green to orange, i can't remember). The screen doesn't turn on at all. I can't get to recovery either.
This is a Nook HD, I believe it had CM11.
:crying:
Can this be fixed
or should i plan it's funeral
Same here
The same has happened to me. Screen doesn't turn on, but there is power, I can play it into my laptop and something is there, just not enough.
Good excuse for a new tablet!
It can be fixed. I've done it before. It has to do with the fstrim not being compatible with certain hardware versions of our device. If I can remember how I fixed it, I'll post it here. Trying to fix mine (again).
tambourineman86 said:
It can be fixed. I've done it before. It has to do with the fstrim not being compatible with certain hardware versions of our device. If I can remember how I fixed it, I'll post it here. Trying to fix mine (again).
Click to expand...
Click to collapse
If would be fab if you could fix. Seems to be a common issue
I was able to fix it. YMMV.
1) Make sure the Nook is completely off and unplugged
2) Take out your sdcard
3) Hold down power button until the "battery depleted" icon shows, then promptly plug in the power before the icon disappears.
4) Let it set. The screen will go black, then it will attempt to boot and get stuck on the faint black screen, but this time, the charging light should stay amber.
If you want to be safe, wait until the device reboots itself. That could take hours though. If you're plugged into the wall wait at least 30 - 45 minutes before holding the power button down til it shuts down and then rebooting it (with the sdcard inserted).
Good luck, I hope it works for you.
EDIT: Also, I've read this may also have to do with wifi sending the device into some sort of strange bootloop when the screen is off. I personally believe it has more to do with the fstrim of JB but perhaps changing the wifi sleep policy may prevent this issue from happening again. I'm skeptical, but figured I'd pass that info along if anyone wants to try it as well.
tambourineman86 said:
I was able to fix it. YMMV.
1) Make sure the Nook is completely off and unplugged
2) Take out your sdcard
3) Hold down power button until the "battery depleted" icon shows, then promptly plug in the power before the icon disappears.
4) Let it set. The screen will go black, then it will attempt to boot and get stuck on the faint black screen, but this time, the charging light should stay amber.
If you want to be safe, wait until the device reboots itself. That could take hours though. If you're plugged into the wall wait at least 30 - 45 minutes before holding the power button down til it shuts down and then rebooting it (with the sdcard inserted).
Good luck, I hope it works for you.
EDIT: Also, I've read this may also have to do with wifi sending the device into some sort of strange bootloop when the screen is off. I personally believe it has more to do with the fstrim of JB but perhaps changing the wifi sleep policy may prevent this issue from happening again. I'm skeptical, but figured I'd pass that info along if anyone wants to try it as well.
Click to expand...
Click to collapse
Not sure we have the same problem. My screen doesn't come on at all, I don't get a battery depleted icon, no matter how long I hold in the power button. The only sign of life I get is when it's plugged in, when it goes from orange to green after about 10 seconds.
Thanks for the help, but I think it's a lost cause.
YMMV. But mine was the same issue. You should be able to get the icon by holding the power button down for 5 or 6 seconds. I'd say just eff with it until that icon appears. Try different button combinations. I used power and home trying to get the icon to show.
developerbuzz said:
when it goes from orange to green after about 10 seconds.
Thanks for the help, but I think it's a lost cause.
Click to expand...
Click to collapse
Anyway... since people are continually running into this kind of issue...
Give or take 21 seconds after turning orange it turns green during actual boot cycle into rom
Give or take 10 seconds after turning orange is cwm internal recovery.
After about 10 seconds the charging screen image disappears.
The charging screen image once finally no longer may not show up again until full power off/on (holding power button > 10 seconds or full battery discharge). Unplugging and plugging back in does nothing except making the device look bricked if there's too much light shining on it.
Device may not automatically leave the above state under a specific situation(s). May still need manual full power off/on.
Guessing 10 seconds could also be something else during the early/late boot process or other. The light changing color though should indicate that something is indeed happening.
Light should stay green during the boot process if its completely and fully no questions asked 100%. If you go based on that than yours doesn't appear to be completely fully charged which should either mean its turning on and using battery or not charging correctly.
The light turning off is curious. The device could be shutting off. If light comes back on a moment later then the device has rebooted. if the light stays off = n/a.
If its booting into recovery then the device would be available via adb. At that point it could be further evaluated.
On the off chance the screen was damaged it should boot and usb should be available via computer as well as adb.
If not then its probably toast unless its simply not getting a good enough current causing mislead battery stats and/or not enough energy to get to charging screen (bad wall power adapter in use, damaged power cable - though could be bad battery, defect, damage or whatever). OR there's some major error on behalf of the user happening (think should have tried that in the morning not while 1/2 asleep or came home from long trip and forget how that works).
Maybe the only other things are the emmc brick bug, was left sitting in the sun or heat or ocean air or other physical damage/defect even to the power port as well.
Or maybe it was mad that you left it. Shouldn't have hurt its feelings you know. At least its not crying battery acid on you.
That should just about cover everything except for the things not mentioned. Since its your device, you decide what happened.
Its complicated so anyone see any improvements, clarifications, or mistakes? Please put it in a post.
Jsorren said:
when i plug it in the LED goes from orange to green and then off (or green to orange, i can't remember). The screen doesn't turn on at all.
Click to expand...
Click to collapse
Bumping this thread to make it aware that there is a real answer. I have been able to duplicate this problem and rather easily too.
The problem is indeed from bad power. The device isn't receiving the correct amount of power needed to charge and start from a fully discharged battery.
To safely* duplicate this you can use a usb extension that isn't fully connected to the nook power cable. You may need to fully connect it first then slowly disconnect/connect till the light turns green when it should actually be charging. It won't actually charge in this state, or if it is, its very little and the battery percentage will continue to drop.
Leave the cable as is and unplugged. After the tablet is fully discharged, connect the usb cable. The light will change through the modes and turn off. The device will not turn on.
There are probably other ways to cause the problem like for instance a portable usb battery that doesn't put out enough juice (not the orange kind). Etc.
* It didn't hurt mine, but not my fault if it breaks your device.
sandsofmyst said:
Bumping this thread to make it aware that there is a real answer. I have been able to duplicate this problem and rather easily too.
The problem is indeed from bad power. The device isn't receiving the correct amount of power needed to charge and start from a fully discharged battery.
To safely* duplicate this you can use a usb extension that isn't fully connected to the nook power cable. You may need to fully connect it first then slowly disconnect/connect till the light turns green when it should actually be charging. It won't actually charge in this state, or if it is, its very little and the battery percentage will continue to drop.
Leave the cable as is and unplugged. After the tablet is fully discharged, connect the usb cable. The light will change through the modes and turn off. The device will not turn on.
There are probably other ways to cause the problem like for instance a portable usb battery that doesn't put out enough juice (not the orange kind). Etc.
* It didn't hurt mine, but not my fault if it breaks your device.
Click to expand...
Click to collapse
I actually ended up fixing it yesterday!! I haven't touched it in about 3 months, and I was planning on just throwing it out getting rid of it some how. For the heck of it, I decided to plug it in, assuming that it was gonna go through the same process. But this time it went from green to amber, but it never went off. So I pressed the power button and the battery icon appeared. This was a really good sign. So I left plugged in for about 5 to 10 minutes then tried to power on.:fingers-crossed: As soon as I saw that '' Nook" boot up screen, my heart stopped. It booted up perfectly and I almost blew up from excitement :victory:. So I then flashed the stock firmware back onto it, so this would never happen again.
I guess the battery had to be completely depleted or just had to cool down. Idk but either way this was one heck of a miracle
So I recommend for anyone having this problem to just leave it off and don't mess with it. I wouldn't say for 3 months like I did but maybe test it each week or wait a month if you have good patience
Wow. Man, that's awesome! Glad you posted that update on it. Thought if you had posted an update it would be the opposite as in trashed it
Actually, I guess only you could answer if you had also moved/unplugged the power cable from the wall adapter or put it into a different wall adapter, etc. Thinking there could have been a difference there.
These modern day devices are so finicky, guess anything is possible. Like you say, maybe sitting without power is another answer.
From some experimentation I have etermined that your power adapter (that plugs into the outlet) is the issue. It does not like to be leaft plugged in indefinately. It will continually use power even when the nook is not plugged in.
Also, if you use a differnt adapter you will have the same problem unless it is also of the exact same voltage and amps.

[Q] [HELP] Red flashing LED, won't turn on, after battery change

Hey XDA!
Got a problem with my Xperia Z1. It was working fine before the battery swap, aside from a problem with the battery (failing to hold more than 5% charge), hence the swap.
But after removing the old battery and attaching the new one, the phone will not boot, and when plugged into a wall socket, it flashes the red LED in 1~ second intervals. The pow+volume up combination doesn't result in any changes or "3 vibrations", and it won't enter flashboot mode. When plugged into a Windows PC, it registers it being connected, but when the LED turns off, the "disconnected device" sound plays, and it does this every time the LED comes on then off again.
Worst part is that hooking the old battery up doesn't work either!
I'm fairly certain I'm royally screwed but I cannot see clearly why; I checked the phone and anywhere I touched, and I can't see anything wrong. It could be that I was sent a faulty battery replacement and it broke it, or I installed it slightly incorrectly that resulted in the same thing.
Has anyone got a potential solution or am I well and truly screwed?
Cheers!

Phone freezes when charging

Hello!
Last night I was on messenger, casual stuff like every night (I have had this phone for 3 years soon), phone didn't overheat, I don't remember exactly what I was doing but suddenly my phone screen turned black. The buttons and charging led were still on. (Yes I was charging at same time). I couldn't turn my phone on and it was 2 am, so I didn't feel like trying to do anything with it.
I left it charging, and today morning, it still doesn't turn on while charging! I need it to charge since my battery is like 7%, but the phone freezes whenever I plug the charger in!
I have done factory reset already, thought that would help but nope.
Please help! Thanks
I was messing aorund with it more and found out that my phone turns completely off when charging. While charging I can get factory reset screen up if i press power + volume down, but nothing else. Still need help.

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