Modify Clockwork to allow charging while off? - Nook Color General

So I just found this:
http://forum.xda-developers.com/showthread.php?p=12513699#post12513699
and a modified version for my HTC Aria phone. It works great!
Is there any chance a dev here can modify CWM for eMMC to work in this way?

Pretty sure the Nook doesn't need any HTC hacks to charge while off.

isn't it an issue with the cm7 builds not being able to go into deep sleep (or having that option turned of or something?) cuz it causes problems with wifi?
i thought the not turning off if plugged in issue was related to this

nemith said:
Pretty sure the Nook doesn't need any HTC hacks to charge while off.
Click to expand...
Click to collapse
Not sure if you were trying to be a smart-ass or not, but obviously my Nook isn't made by HTC, however if I plug it in while it's turned off, guess what, it turns on.
I believe it's a Clockwork "hack", not an HTC specific hack, but I could be wrong.
djlim4 said:
isn't it an issue with the cm7 builds not being able to go into deep sleep (or having that option turned of or something?) cuz it causes problems with wifi?
i thought the not turning off if plugged in issue was related to this
Click to expand...
Click to collapse
My HTC Aria is running CM7 and this hack worked perfectly for it.

911jason said:
Not sure if you were trying to be a smart-ass or not, but obviously my Nook isn't made by HTC, however if I plug it in while it's turned off, guess what, it turns on.
I believe it's a Clockwork "hack", not an HTC specific hack, but I could be wrong.
My HTC Aria is running CM7 and this hack worked perfectly for it.
Click to expand...
Click to collapse
That is because it is actually supposed to turn on when you plug it in. You should have it plugged in and then shut off to have it charge while off. No need for a HTC clockwork mod, as the problem was only with HTC devices.

I know you can turn it off after it starts charging, but it's not supposed to turn on, as you say, the stock Nook doesn't.

911jason said:
I know you can turn it off after it starts charging, but it's not supposed to turn on, as you say, the stock Nook doesn't.
Click to expand...
Click to collapse
Yes it does. Plugging in any nook while off turns it on.

Really? Guess I missed that in the day or so that I had an unmodified Nook.
Still would like to hear from a dev whether or not the system could be modified to not fully boot when connected. It seem illogical to me to have a device as power-hungry as the Nook boot up when you want to charge it, which will slow down the charging process.

911jason said:
Really? Guess I missed that in the day or so that I had an unmodified Nook.
Still would like to hear from a dev whether or not the system could be modified to not fully boot when connected. It seem illogical to me to have a device as power-hungry as the Nook boot up when you want to charge it, which will slow down the charging process.
Click to expand...
Click to collapse
Day of stock? Pft 10 minutes.
But yes, it does seem completely bass-ackwards to have it do that.

Isn't this driven by the whole USB then microSD then EMMC boat loader? It makes sense to me that the device be turned on when plugging in USB if your first boot device is USB.

Ahhh... didn't realize that the Nook had USB booting, that would probably kill this. I thought it was just SD, then eMMC. Bummer.

djlim4 said:
isn't it an issue with the cm7 builds not being able to go into deep sleep (or having that option turned of or something?) cuz it causes problems with wifi?
i thought the not turning off if plugged in issue was related to this
Click to expand...
Click to collapse
It's not wifi it's the touchscreen and other parts go too far into sleep and will never recover. This has nothing to do with charging or recovery.

911jason said:
I know you can turn it off after it starts charging, but it's not supposed to turn on, as you say, the stock Nook doesn't.
Click to expand...
Click to collapse
After plugging in the USB turn your nook off by holding the power button. It will continue to charge
911jason said:
I believe it's a Clockwork "hack", not an HTC specific hack, but I could be wrong.
Click to expand...
Click to collapse
It's a hack implemented by Clockwork to replicate the same behavior that the stock HTC recovery does on your phones.
Before this hack was in place plugging in your HTC Aria while off would force it to boot into recovery with no real reason. This modification just boots into a "off-mode charging" screen which was implemented using the recovery ramdisk and kernel but a different userspace program.
The Nook doesn't need this as it's implemented in hardware quite well.
1) The nook will turn on automatically.
2) There is not enough power the bootloader will display a screen needing more of a charge
3) It seems, based on my testing, that the nook will continue to charge even when the device is full turned off.
So in conclusionL I am glad it worked for you on your HTC Aria, but this hack is for specific HTC phones and does not apply to the nook color.

911jason said:
Really? Guess I missed that in the day or so that I had an unmodified Nook.
Still would like to hear from a dev whether or not the system could be modified to not fully boot when connected. It seem illogical to me to have a device as power-hungry as the Nook boot up when you want to charge it, which will slow down the charging process.
Click to expand...
Click to collapse
From the B&N Nook Color User Guide:
To charge your NOOKcolor from a wall outlet, do this:
1. Assemble the power adapter and microUSB cable. Insert the large end of the USB cable into the matching receptacle on the power adapter.
2. Plug the NOOKcolor end of the USB cable into your NOOKcolor.
3. Plug the power adapter into a compatible electrical outlet. If your NOOKcolor was turned off, it will now turn itself on.
NOTE: Depending on how much power remains in the battery, it might take around 3-4 hours to fully recharge
your NOOKcolor. Do not turn of your NOOKcolor while it is charging.
NOTE: Once your NOOKcolor has enough power to turn on, you can see how much power remains in the
battery by checking the battery charge indicator in the right corner of the Status Bar. You may need to
drag the green NOOK symbol to the right across your screen to unlock your NOOKcolor and display
the Status Bar, which runs along the bottom of the screen.
4. Once your NOOKcolor has fully charged, unplug the power adapter from the electrical outlet. Unplug the USB
cable from your NOOKcolor.
Click to expand...
Click to collapse
Seems like there is a design reason for that.

What? You can boot off USB too? I didn't even know that!

sorry, i was totally off i guess, thanks for the clarifications guys.
I've powered my NC off after i've plugged it in and have come back to an already booted device.
This is not once or twice, it's pretty much all the time.
Maybe i just have a weird device? I DID buy it off craigslist used... but i've had no issues at all as far as user functionality goes in the month or so i've had it.

nemith said:
After plugging in the USB turn your nook off by holding the power button. It will continue to charge
Click to expand...
Click to collapse
I knew that, but was trying to avoid that step.
Thanks for all the info guys, I still think since the Nook does charge after powering off, it would be nice if someone could find a way to skip that whole boot/power-down process so I can just plug it in and walk away.
djlim4 said:
I've powered my NC off after i've plugged it in and have come back to an already booted device.
This is not once or twice, it's pretty much all the time.
Maybe i just have a weird device? I DID buy it off craigslist used... but i've had no issues at all as far as user functionality goes in the month or so i've had it.
Click to expand...
Click to collapse
Are you running the stock ROM? Mine did the same thing until I installed a different ROM. HC and CM7 both stay off when charging after I have powered them down.

I've been running CM7 nightly builds off emmc mostly, if not the tablet tweak ones before they were integrated.
Not something I consider an issue for me, but I've yet to do any complete wipe since I first flashed CM7. I might try phiremod over the weekend unless the fascinate forum blows up with new stuff (our 2.2 source code finally dropped today), in which case I'll do a complete wipe and see if the problem persists.
EDIT: Yes, i'm running with the latest OC kernel
EDIT 2: Ok... I didn't notice before, but I guess I have a sort of faulty usb? not sure but it flickers from time to time, like on and off. I've never really paid attention to it while it charges, but i just noticed that the light on the N went off and came back on a few seconds later and confirmed that it flickers from time to time on its own. So on the bright side i guess i don't have hardware with an anomaly, too bad I have a charging cable with a mind of its own

Are you running one of Dalingrin's Overclock Kernels? I'm guessing not, since that would be the only other difference.

nemith said:
After plugging in the USB turn your nook off by holding the power button. It will continue to charge
Click to expand...
Click to collapse
ADude said:
From the B&N Nook Color User Guide:
3. Plug the power adapter into a compatible electrical outlet. If your NOOKcolor was turned off, it will now turn itself on.
NOTE: Depending on how much power remains in the battery, it might take around 3-4 hours to fully recharge
your NOOKcolor. Do not turn of your NOOKcolor while it is charging.
Click to expand...
Click to collapse
Seems like there is a design reason for that.
Click to expand...
Click to collapse
I've been plugging it in and then powering it off to charge. Now I find out that the guide specifically states to not turn off your NOOKcolor while it is charging.
Will charging while it's powered off screw up the battery calibration?
edit: one thing I've noticed is that if charging powered off, the usb light never turns green when it becomes fully charged.

Related

Charging Turns on NC

is there a way to "not" have my NC turn on when it is off...and i plug it in to the charger? i dont like having to plug it in first, then turn it off when i want to charge it and not use it.
alphabets said:
is there a way to "not" have my NC turn on when it is off...and i plug it in to the charger? i dont like having to plug it in first, then turn it off when i want to charge it and not use it.
Click to expand...
Click to collapse
To my knowledge, it has yet to be discovered. Which definitely irks me.
If you have it rooted, NEVER let it get low on battery. Recovery from a semi-brick in my case took 1.5 days since I had to do a crap load of charging since it was bootlooping and sucking juice.
Someone will find the setting and share hopefully.
alphabets said:
is there a way to "not" have my NC turn on when it is off...and i plug it in to the charger? i dont like having to plug it in first, then turn it off when i want to charge it and not use it.
Click to expand...
Click to collapse
It will turn the screen off at the normal amount of time, so what's the issue? You mean you want the NC powered completely off? Why bother?
Isn't this likely a hardware/firmware trigger?
If you read your manual.... B&N says to *NOT* turn off the NC while charging.
I don't think it is possible to charge with it off. In the 1.0.1 zip there was a charging file that looks like when you plug in the charger it has to use that code to charge properly. I haven't seen something like this before but it could be possible. If so, no charging ifvthe nook is off
Sent from my NookColor

Screen wont turn off when plugged in - CM

Title says it all...
When you plug in the nook color the screen wont turn off in Cyanogen Mod... This isn't good when you are using <2 amp charging (say 500 mA from standard usb) as the screen uses more power then the charge provides... so it actually drains the battery. Any ideas?
When you say it will not turn off, do you still have a display or just the backlight? When I am charging my nook in standby, I have noticed that the backlight will remain on until I tap the power button. That gives me a black screen
Sent from my NexusOne using Tapatalk
numus said:
Title says it all...
When you plug in the nook color the screen wont turn off in Cyanogen Mod... This isn't good when you are using <2 amp charging (say 500 mA from standard usb) as the screen uses more power then the charge provides... so it actually drains the battery. Any ideas?
Click to expand...
Click to collapse
I noticed that recently with one of the later nightlies. I can still power off while charging though, can you?
I put it in sleep, I don't turn it off.
Same problem here. I just turn have to remind myself to manually turn it off whenever I plug it in. Probably some kernel bug or something?
Not a huge problem though. =)
numus said:
Title says it all...
When you plug in the nook color the screen wont turn off in Cyanogen Mod... This isn't good when you are using <2 amp charging (say 500 mA from standard usb) as the screen uses more power then the charge provides... so it actually drains the battery. Any ideas?
Click to expand...
Click to collapse
Turn the screen off by hitting the power button.
This is not a bug but a workaround for a kernel bug. We fixed a bug that would cause kernel panic if you let the device sleep while plugged into USB. However, it would still eventually kill ADB so for now I start a partial wake lock when connected to USB.
Just wondering when this might be fixed? Having to worry about the screen being left on when plugged in is a problem for me. I normally charge my Nook from a standard usb. If the screen is on it drains the battery.
ron_e said:
Just wondering when this might be fixed? Having to worry about the screen being left on when plugged in is a problem for me. I normally charge my Nook from a standard usb. If the screen is on it drains the battery.
Click to expand...
Click to collapse
When what might be fixed? As Dal just said, this IS the fix for the time being. And it isn't a worry. Just plug it in, and hit the power button; your screen will turn off, and you will be good to go.
Divine_Madcat said:
When what might be fixed? As Dal just said, this IS the fix for the time being. And it isn't a worry. Just plug it in, and hit the power button; your screen will turn off, and you will be good to go.
Click to expand...
Click to collapse
The fact it sounded like a temp fix "for the time being" is why I asked about timing. Turning the screen off is fine but I have had one case where the screen turned back on during the night and I woke to a nook that was almost dead even though it was plugged in all night. Even an answer like planned for next RC or for the final release of 7.1 would be helpful.
If there is not fix coming it would be nice to know that too.
I appreciate everything that has been done for the nook and enjoy using it as a tablet.
Using the high capacity cable is not an option. I have tried two in my nook and one would not charge it all and the second was very hard to plug and would sometimes charge it. A standard USB cable has always worked fine. I have read about bad high capacity cables taking out more than one nook so I won't even go there anymore.
Have this been solved somehow?
I have recently mounted my Nook Color on the kitchen wall and it is annoying to manually having to push the power button to turn off the screen, instead of having the screen turn off automatically after a specified time.

[Q] Nook HD+ won't turn on

OK, I've seen this twice (so it isn't complete death) but wanted to see if anyone else had any ideas. I've done a complete shut down (power button for 8 sec) and then couldn't get it to turn back on. When this is happening, I can plug it in and see the green charging light. Holding the power button then for 8 sec will make the green light go out. Pushing it again, light comes on. So the button is working... If i leave it for awhile, the nook will then reboot and appear to work normally...
Rooted, stock, 2.0.5
dbh369 said:
OK, I've seen this twice (so it isn't complete death) but wanted to see if anyone else had any ideas. I've done a complete shut down (power button for 8 sec) and then couldn't get it to turn back on. When this is happening, I can plug it in and see the green charging light. Holding the power button then for 8 sec will make the green light go out. Pushing it again, light comes on. So the button is working... If i leave it for awhile, the nook will then reboot and appear to work normally...
Rooted, stock, 2.0.5
Click to expand...
Click to collapse
If your device battery level is below 10 percent it will not turn on until it charges up to at leat 15 percent level. Then it will turn on.
hwong96 said:
If your device battery level is below 10 percent it will not turn on until it charges up to at leat 15 percent level. Then it will turn on.
Click to expand...
Click to collapse
I think that is the mechanism stopping it, but it is malfunctioning, I'm at about 90% this last time...
Is there ther equivalent of 'battery stats' somewhere that can be affecting this? or is this hardware? It should be turning on fine at 80-90% but no. However, plug in for 10 mins and it works fine. So that seems to be the problem.
dbh369 said:
I think that is the mechanism stopping it, but it is malfunctioning, I'm at about 90% this last time...
Is there ther equivalent of 'battery stats' somewhere that can be affecting this? or is this hardware? It should be turning on fine at 80-90% but no. However, plug in for 10 mins and it works fine. So that seems to be the problem.
Click to expand...
Click to collapse
OK, this is getting worse, I'm now at 100% charge and it happened. Weirder still, if I leave it plugged in for awhile, it will reboot on its own.
I have not had this happen on my HD but something similar has happened on my HD+. It seems to be related to whether an SD is plugged in. I have to take the SD out, press power off for a while, then release and momentarily press power again.
I know on the Nook Colors, they would not turn on unless it could find the boot files to boot from. So if a user formatted his internal boot partition by mistake, it would not turn on unless a bootable SD with active boot files was in the slot. Something akin to this may be happening, only in reverse.
Sent from my Nook HD+ Running CM10 on SD
Huh- will try removing the sd next time- it is a nd plus. Of course then how sui I boot to sd?
Sent from my BNTV600 using xda app-developers app
dbh369 said:
Huh- will try removing the sd next time- it is a nd plus. Of course then how sui I boot to sd?
Sent from my BNTV600 using xda app-developers app
Click to expand...
Click to collapse
Once I got it booting, then I could put the SD back in and boot to it.
(And your thread title says HD).
Sent from my Nook HD+ Running CM10 on SD
leapinlar said:
(And your thread title says HD).
Sent from my Nook HD+ Running CM10 on SD
Click to expand...
Click to collapse
Fixed
Sent from my BNTV600 using xda app-developers app
leapinlar said:
Once I got it booting, then I could put the SD back in and boot to it.
Sent from my Nook HD+ Running CM10 on SD
Click to expand...
Click to collapse
OK, this seems to have worked. I tried to change the partition of my CWM SD card using EaseUS, but that seemed to make it no bootable, and removing it does seem to have worked. Now I can boot a new reimaged CWM card.
Thanks!
Good to hear that your nook is working again.
It seems i am having a similar issue, only a little more severe.
I described it here: http://forum.xda-developers.com/showthread.php?t=2088893
leapinlar said:
It seems to be related to whether an SD is plugged in. I have to take the SD out, press power off for a while, then release and momentarily press power again.
Click to expand...
Click to collapse
Something similar happened to my HD+ running the 12/31 build of verygreen's CM. In my case, I think it was precipitated by the battery draining too far first, though. Very weird and a little spooky, but glad there's a workaround.
Wow, this is dumb. I can't believe a badly-formatted SD would cause it to look like it's broken. Put a message up or something. Thanks for the help, thought something was really wrong!
Nook HD Plus won't charge
I've seen dozens of reports of this. The symptoms are all about the same.
The unit drains the battery, even if you plug it in, it still drains, so although the charger and cable are fine, something inside the Nook doesn't get the memo.
It drains down to the point where it turns off. Then every time you plug it in, the light goes green, then amber, then off. The battery never charges.
I tried taking the unit apart and disconnecting the battery overnight, but that didn't seem to help. I suspect something in the software gets in a "vapor lock" where a dead battery condition is mistaken for a fully-charged battery condition. I only paid $109 for it refurbished, so it isn't worth another $60 for a new battery, and I don't think there is anything wrong with this battery.
If I knew the pinouts of the battery connector, I might try charging it without going through the Nook. Perhaps if it was actually fully charged, the "vapor" would realign.
Does anyone have another idea, apart from the nitwit stuff Barnes & Noble allows on its forums, like "push the cable in harder" or try another adapter. I notice they aren't interested in entertaining any idea that their firmware is at fault.
It will not charge when plugged in if OTG USB is activated (e.g., to connect a USB keyboard). That's happened to me a few times using unofficial VG CM versions where the USB state can be changed inadvertently from a pull down drawer. If the USB isn't toggled back to normal in time to recharge the battery before its completely discharged, it might not be revivable.
Sent from HD+ MAG2GA CM 11 from SD
dbh369 said:
OK, I've seen this twice (so it isn't complete death) but wanted to see if anyone else had any ideas. I've done a complete shut down (power button for 8 sec) and then couldn't get it to turn back on. When this is happening, I can plug it in and see the green charging light. Holding the power button then for 8 sec will make the green light go out. Pushing it again, light comes on. So the button is working... If i leave it for awhile, the nook will then reboot and appear to work normally...
Rooted, stock, 2.0.5
Click to expand...
Click to collapse
I've the same problem, except even if I leave it a while, it doesn't boot or even appear to start. Is there something wrong with the battery or display? It was working perfectly fine until suddenly the screen froze and I had to do a complete shut down.
I cant get my nook to turn on. I try charging it and a little green light comes on at the bottom and stays on for about 3 seconds and then a orange light comes on for about 3 seconds and then it shuts off. I dont know if the light is supposed to stay on while it is charging. Sometimes it comes up with a dead battery sign but it just goes right back off.
TiffanyLandis95 said:
I cant get my nook to turn on. I try charging it and a little green light comes on at the bottom and stays on for about 3 seconds and then a orange light comes on for about 3 seconds and then it shuts off. I dont know if the light is supposed to stay on while it is charging. Sometimes it comes up with a dead battery sign but it just goes right back off.
Click to expand...
Click to collapse
Have you tried charging it with its wall-charger for an extended period (8+ hours)?

[Q] can't charge or turn on my nook hd+ at all

My nook was idle for a day or two, as I remember I hv shut it off.
But then yesterday I try to charged it, the light was green then turn to red, n then it went off, usually the nook would turn on right after I plug the charger. So I didn't notice it until today, and I tried to turn it on by pressing the power button, and the N button together as well, both didn't work.
It seems that I can't charge it or turn it on. Everytime I tried to re-plug it to power or press power button while its connected, the light went on in green to red then off again.
Sent from my GT-N7000 using xda app-developers app
Connect your charger. Let it stay on charger 20 min. Then try push n button. If this not bring screen on then try push power button for 5 sec. Again if not then try power and n button combination.
Hope this helps.
Thx! Turns out tht external charger didn't work.
Sent from my BNTV600 using xda app-developers app
I think that last opinion is make CWM sd card (without CM10) and insert it do device, then try to switch the device on (with charger trick or power button). If you then get it live all is ok. If not then last change is wait when battery goes empty and charger wakes it up.
Actually i predict that item is itself faulty and you must return it for change (maybe not faulty at hardware side, only OMAP inside code got corrupt).
I don't know, that might because I rooted my device, and I did sth wrong. Sometimes it would reboot itself, since my cmw card was inserted, it would load tht root page so I found out. But I live in Asia so returning the device might be too costly, probably won't do it.
Sent from my BNTV600 using xda app-developers app
ling_1118 said:
I don't know, that might because I rooted my device, and I did sth wrong. Sometimes it would reboot itself, since my cmw card was inserted, it would load tht root page so I found out. But I live in Asia so returning the device might be too costly, probably won't do it.
Sent from my BNTV600 using xda app-developers app
Click to expand...
Click to collapse
It could be several things. The most likely is it was trying to update itself and could not because the CWM card was there. I don't think your device is defective.
Sent from my Nook HD+ running CM10 on Hybrid SD
leapinlar said:
It could be several things. The most likely is it was trying to update itself and could not because the CWM card was there. I don't think your device is defective.
Sent from my Nook HD+ running CM10 on Hybrid SD
Click to expand...
Click to collapse
Now i can say same. With first information things was other.
...It's more or less a known bug to those of us who use CM10 (even to some who use stock), the battery simply often can't tell how much she has left. So she may fluctuate from 1% to 26% to 0% a moment later . In one such moment my Nook HD+ shut down (went from 26% to 0%). So I put it up for charging thinking (naively) that it would boot up ... it didn't, now all I get is a charging icon that never goes away (orange led remains lit). What's more I *know* it has some charge (the "26%" was the right value) and I know the battery works, so what prevents it from starting is the "battery charge sensor".
It's a pretty silly way to lose your (my) tablet over. Even more so given how much I grew attached to it for my workflow. So what's next? Is there a secret way to convince it to boot. As I said both the hardware and its software is in top condition. I guess an alternative would be to ship it back for replacement but I'm afraid that I've lost my receipt and -as I said- it's a silly way to lose your tablet over, there *has* to be a (fast) way out...
BTW when connected to my PC my device manager briefly shows an "Omap 4470" unknown device (with an exlamation mark) which goes away few secs later, so I cannot attain ADB control over my devices either (sadly)....
Stevethegreat said:
...It's more or less a known bug to those of us who use CM10 (even to some who use stock), the battery simply often can't tell how much she has left. So she may fluctuate from 1% to 26% to 0% a moment later . In one such moment my Nook HD+ shut down (went from 26% to 0%). So I put it up for charging thinking (naively) that it would boot up ... it didn't, now all I get is a charging icon that never goes away (orange led remains lit). What's more I *know* it has some charge (the "26%" was the right value) and I know the battery works, so what prevents it from starting is the "battery charge sensor".
It's a pretty silly way to lose your (my) tablet over. Even more so given how much I grew attached to it for my workflow. So what's next? Is there a secret way to convince it to boot. As I said both the hardware and its software is in top condition. I guess an alternative would be to ship it back for replacement but I'm afraid that I've lost my receipt and -as I said- it's a silly way to lose your tablet over, there *has* to be a (fast) way out...
BTW when connected to my PC my device manager briefly shows an "Omap 4470" unknown device (with an exlamation mark) which goes away few secs later, so I cannot attain ADB control over my devices either (sadly)....
Click to expand...
Click to collapse
If you are running CM10 or 10.1, there is an easy way to connect with ADB. Do it wirelesly over wifi. That is built into CM. Just enable it in the developer options. No need to mess with the USB cable and windows drivers. You can do the same thing with rooted stock by installing an app called ADBWireless.
Sent from my Nook HD+ running CM10 on Hybrid SD
leapinlar said:
If you are running CM10 or 10.1, there is an easy way to connect with ADB. Do it wirelesly over wifi. That is built into CM. Just enable it in the developer options. No need to mess with the USB cable and windows drivers. You can do the same thing with rooted stock by installing an app called ADBWireless.
Sent from my Nook HD+ running CM10 on Hybrid SD
Click to expand...
Click to collapse
At the time that could not happen , since (as I had implied) my nook was not booting to begin with...
Anyhow, what I did was to leave it for three solid hours on the charger, and after that period of time it booted on its own wiithout warning. It's the first that such behavior was/is ever present to my nook and it's deeply worrying. A battery fix for the CM kernel couldn't come any sooner; now, if only verygreen was around
There's a few ideas on a couple of other threads including putting it in the fridge, etc. Question, if you plug it in, does the charging light come on? Does it come on after pushing the power button or the N button? If so, take your SD out, leave it charging overnight and try again. It often reboots when in this state and if there's an update problem, that could be the issue. Also, it is sometimes erratic on when and how it charges, be careful with the connections.
dbh369 said:
There's a few ideas on a couple of other threads including putting it in the fridge, etc. Question, if you plug it in, does the charging light come on? Does it come on after pushing the power button or the N button? If so, take your SD out, leave it charging overnight and try again. It often reboots when in this state and if there's an update problem, that could be the issue. Also, it is sometimes erratic on when and how it charges, be careful with the connections.
Click to expand...
Click to collapse
As I said it came up on its own, without warning after leaving it for 3 hours on the charger...
As for your question, the led (charging light) was on all the time but it would only show me that it had no battery (couldn't charge even though it was ... charging?)
Maybe the fridge makes sense in those situations, as it was indeed into a (relatively) hot environment and maybe it couldn't charge as a safety against overheating and since (at the same time) it also thought it had 0 battery. But what I can't understand is why needed 3 hours before starting to charge up, it was already cool enough long before ... strange things are/were happening with my battery all along and I worry...
Stevethegreat said:
As I said it came up on its own, without warning after leaving it for 3 hours on the charger...
As for your question, the led (charging light) was on all the time but it would only show me that it had no battery (couldn't charge even though it was ... charging?)
Maybe the fridge makes sense in those situations, as it was indeed into a (relatively) hot environment and maybe it couldn't charge as a safety against overheating and since (at the same time) it also thought it had 0 battery. But what I can't understand is why needed 3 hours before starting to charge up, it was already cool enough long before ... strange things are/were happening with my battery all along and I worry...
Click to expand...
Click to collapse
Yep, I've noticed the same thing a few times. It no longer panicks me. When it doesn't turn on, I take out the SD, plug it in, wiggle the connector a few times, and let it alone. So far, it has always eventually rebooted, often as you say on its own. Quirky, but not fatal at least. One poor guy on here never did get his to turn on, but the key was the charging light,his didn't come on.
Need help cannot turn on Nook HD+ at all
Hi!
I cannot turn it on at all and it won't reboot.
It went out some point I didn't watch it. When I connected it to the charger the LED next to the connector starts blinking amber and green for a few seconds and then stays blinking red and makes a high pitched noise.
The only reaction I get is when I press power on an volume down after some time - it display turns on an shows a charging sign - but it never really seems to fully charge. I left it on the charger over night - still the same. Once the display blinked and showed “nook” but went out immediately after a few milliseconds.
Might it be some kind of bootloop!?!?
What combination to press to make a reset?
Thanks in advance for any help
Medizinmann

Turn on automatically when plugged in?

Hey there. New around the Kindle Fire HD parts as I haven't actually received mine yet..
But, I was curious as to whether you guys could answer a question for me!
If you have your Kindle Fire HD turned off and then apply power to it through the USB, does it turn on? I mean on as boots into Android, not simply displays a charging screen of some sort.
Are you on Stock or the unlocked bootloader?
And lastly, I doubt anyone has tried this.. but I might as well ask! Has anyone tried to remove the battery from the Fire HD and turn it on using only power from USB?
Appreciate the answers.
Nedlinin said:
Hey there. New around the Kindle Fire HD parts as I haven't actually received mine yet..
But, I was curious as to whether you guys could answer a question for me!
If you have your Kindle Fire HD turned off and then apply power to it through the USB, does it turn on? I mean on as boots into Android, not simply displays a charging screen of some sort.
Are you on Stock or the unlocked bootloader?
And lastly, I doubt anyone has tried this.. but I might as well ask! Has anyone tried to remove the battery from the Fire HD and turn it on using only power from USB?
Appreciate the answers.
Click to expand...
Click to collapse
Hey there as well. In answer to your questions...
1.) Yep. It does power on when you plug in USB. No charging screen, just the whole OS (unless there's not enough power to boot Android, in which case yes, there is a charging screen).
2.) I have the second bootloader installed, with Chameleon OS installed.
3.) As for opening up the Kindle.. that's a gray area for me. If I knew what I was doing, I'd open her up, but I don't know if I'd be able to get her back together. Lol
Hope this helped
Ph0enix_216 said:
Hey there as well. In answer to your questions...
1.) Yep. It does power on when you plug in USB. No charging screen, just the whole OS (unless there's not enough power to boot Android, in which case yes, there is a charging screen).
2.) I have the second bootloader installed, with Chameleon OS installed.
3.) As for opening up the Kindle.. that's a gray area for me. If I knew what I was doing, I'd open her up, but I don't know if I'd be able to get her back together. Lol
Hope this helped
Click to expand...
Click to collapse
When you say "unless there's not enough power to boot Android.." do you mean the battery needs some level of charge before the tablet turns on?
For instance, if I left the tablet on and drained it down to 1%, then plugged it in, would the tablet boot straight into Android or would I get a charge screen?
Nedlinin said:
When you say "unless there's not enough power to boot Android.." do you mean the battery needs some level of charge before the tablet turns on?
For instance, if I left the tablet on and drained it down to 1%, then plugged it in, would the tablet boot straight into Android or would I get a charge screen?
Click to expand...
Click to collapse
If you drained the battery (and some ROMs do that in a bad way), the Kindle will only show a charging screen (at least mine does). However, I can't remember if this was when I was on Stock OS or on a different ROM.
So yeah, it does seem to need some level of charge before Android will boot.
Ph0enix_216 said:
If you drained the battery (and some ROMs do that in a bad way), the Kindle will only show a charging screen (at least mine does). However, I can't remember if this was when I was on Stock OS or on a different ROM.
So yeah, it does seem to need some level of charge before Android will boot.
Click to expand...
Click to collapse
Awesome. Appreciate all of the info. I'll see if I can't set Tasker up to turn off the device when the power is removed. If that doesn't work, I'll go build my own version of Android that changes the battery shut off percentage to something high enough to make sure it will turn on as soon as power is applied.
Thanks again for all of the info!

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