Related
Slapped CM7 with tweaks on here and so far so good aside from some small things but my battery suddenly seems to charge incredibly slow. Anything I can do to fix this?
Are you using the right cable and charger? The charger and cable are specific to the Nook...
Sent from my Nexus One using XDA Premium App
capnblackleg said:
Slapped CM7 with tweaks on here and so far so good aside from some small things but my battery suddenly seems to charge incredibly slow. Anything I can do to fix this?
Click to expand...
Click to collapse
Charges normally for me.
danger-rat said:
Are you using the right cable and charger? The charger and cable are specific to the Nook...
Click to expand...
Click to collapse
This.
I also get very slow charge if I charge via USB on my PC. I have a few phone chargers, and only one seems to be able to charge the nook at a decent rate
poppscc said:
I also get very slow charge if I charge via USB on my PC. I have a few phone chargers, and only one seems to be able to charge the nook at a decent rate
Click to expand...
Click to collapse
Use the Nook Cable and Nook Charger. Period. If you do, 1.9A charge current. If you dn't, .5A charge current.
on the stock kernal, B&N explicitly say that the ONLY way to charge the Nookcolor is via the charge brick/USB cable, that you will not be able to charge the Nookcolor via a usb port of your PC.
I did notice that once I went to the Froyo and C7 Roms that I could charge on my USB ports of my PC, but MUCH slower than via the power brick.
FWIW
miniaturepeddler said:
on the stock kernal, B&N explicitly say that the ONLY way to charge the Nookcolor is via the charge brick/USB cable, that you will not be able to charge the Nookcolor via a usb port of your PC.
I did notice that once I went to the Froyo and C7 Roms that I could charge on my USB ports of my PC, but MUCH slower than via the power brick.
FWIW
Click to expand...
Click to collapse
It will charge from any source.... at .5Ah..
Yes, nook charger. I ran CM7 from SD and nothing changed but once I flashed cm7 with tablet tweaks the batt seemed to drain fast and charge slow.
There's a reason why some choose not to go to CM7. CM7 suffers the "sleep of death" and so is always ON, even when it appears to be sleeping.
This would result in slower charging as the device is fully active all the time.
Juboha said:
There's a reason why some choose not to go to CM7. CM7 suffers the "sleep of death" and so is always ON, even when it appears to be sleeping.
This would result in slower charging as the device is fully active all the time.
Click to expand...
Click to collapse
Actually, I've been using it for about 5 days off the SD card and it's not as bad as I had heard. I see 1%/hr when it's "asleep" vs .2%/hr I saw on stock. So in terms of charge speeds etc, fairly insignificant.
I must say though, my time between charges since going to CM7 have been much smaller... because I'm playing with the NC a lot more
miniaturepeddler said:
on the stock kernal, B&N explicitly say that the ONLY way to charge the Nookcolor is via the charge brick/USB cable, that you will not be able to charge the Nookcolor via a usb port of your PC.
Click to expand...
Click to collapse
Yes, they do say that... and yes, they are lying. Even on the stock B&N OS, I was able to charge just fine (although slowly) from a standard USB port. You don't get a "charging" indicator but, if you watch the battery level, it does slowly increase.
Juboha said:
There's a reason why some choose not to go to CM7. CM7 suffers the "sleep of death" and so is always ON, even when it appears to be sleeping.
Click to expand...
Click to collapse
This is not exactly correct... All NC ROMs are subject to the "sleep of death" problem where the device can crash when put to sleep due to a kernal bug. It would frequently happen to me in Froyo.
CM7 works around this bug by simply not letting the device fully sleep. This is a temporary measure until the new kernal without this bug is ready. This technically makes CM7 the only ROM that doesn't "suffer the 'sleep of death'," as you say.
I'll take slightly shorter battery life over constantly needing to reboot any day of the week.
RoboRay said:
This is not exactly correct... All NC ROMs are subject to the "sleep of death" problem where the device can crash when put to sleep due to a kernal bug. It would frequently happen to me in Froyo.
CM7 works around this bug by simply not letting the device fully sleep. This is a temporary measure until the new kernal without this bug is ready. This technically makes CM7 the only ROM that doesn't "suffer the 'sleep of death'," as you say.
I'll take slightly shorter battery life over constantly needing to reboot any day of the week.
Click to expand...
Click to collapse
Not all.. the B&N ROM doesn't do it Curious.... Could one use the B&N Kernel on CM7? Just to see if SOD was still there?
khaytsus said:
Not all.. the B&N ROM doesn't do it Curious.... Could one use the B&N Kernel on CM7?
Click to expand...
Click to collapse
Not a chance, they use different scheme for power management, video and audio subsystems are difference I believe... CM7(2.3) needs a 2.6.35 kernel to run, 2.1 runs on a 2.6.29, and 2.2 runs on 2.6.32... theres not a snowballs chance in hell that a stock kernel will run CM7
And I seem to use ~10-15% battery in a day on CM7, whatever, I'll charge it every 2 days and I'm fine. CM7 RC4 @ 1.1ghz with Hard menu/back keys make this device close to PERFECT!
RoboRay said:
This is not exactly correct... All NC ROMs are subject to the "sleep of death" problem where the device can crash when put to sleep due to a kernal bug. It would frequently happen to me in Froyo.
CM7 works around this bug by simply not letting the device fully sleep. This is a temporary measure until the new kernal without this bug is ready. This technically makes CM7 the only ROM that doesn't "suffer the 'sleep of death'," as you say.
I'll take slightly shorter battery life over constantly needing to reboot any day of the week.
Click to expand...
Click to collapse
this is good to know. i was under the impression it was a cm7 issue. explains why my nookiecomb installation had sleep of death yesterday.
someone else mentioned that drain wasn't all that bad on cm7 when they tried it. One thread i read, that some of the more recent nightly builds seemed to lower the drain a bit. wish i'd remember the thread it was though.
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.
Just bought an HD+ and it only seems to charge if it is turned on, is that right? After plugging in the charger while turned off, it doesn't get hot and the charging light doesn't come on.That seems a little strange.
gandalf_grey91 said:
Just bought an HD+ and it only seems to charge if it is turned on, is that right? After plugging in the charger while turned off, it doesn't get hot and the charging light doesn't come on.That seems a little strange.
Click to expand...
Click to collapse
You are absolutely right. This device not charging when powered off. Seems it designed this way. This is one blot on Nook HD+.
You don't really need to charge with the device off though
sorrowuk said:
You don't really need to charge with the device off though
Click to expand...
Click to collapse
Hmm, for me this very strange opinion.
I have 12 items (HD+) on work for customers. Every evening we place these to charge. Why then these items must be working for charging.
Actually i charge my own SG Tab 10.1 all time on OFF situation. Mobile items (tabs, e-readers and etc) have constructed work without some overhanging wire.
Back on topic, am I to assume that everybody else who owns an HD+ has observed the same behaviour? That it doesn't charge while turned off?
gandalf_grey91 said:
Back on topic, am I to assume that everybody else who owns an HD+ has observed the same behaviour? That it doesn't charge while turned off?
Click to expand...
Click to collapse
This has been true for all the Nooks. If it is off when you first plug it in, it should turn on. Then don't turn it off or it won't charge.
hi, i just installed CM10.1 on my HD+ and love it!! the only problem is that i have seem to have lost my ability to charge my HD+ while synced with my pc (debugging mode i guess). i have searched but i have not found anything that helps with the Nook HD+. so i ask here if anyone can help me out with some info. thanks in advance with any and all help.
I have a motherboard which can provide 3x normal USB power. It can only charge my tablets (Nexus7, Nook HD+, TF101 ...) while the screen is off.
I think this is normal. My USB ports can charge the Nook pretty quick.
hyperxguy said:
I have a motherboard which can provide 3x normal USB power. It can only charge my tablets (Nexus7, Nook HD+, TF101 ...) while the screen is off.
I think this is normal. My USB ports can charge the Nook pretty quick.
Click to expand...
Click to collapse
hhmmm... thanks for for your input. everything seemed to work when i was running CM10. my HD+ charged with or without the screen on but since i upgraded to CM10.1 my HD+ doesnt charge when plugged into my pc. im trying to search for reasons why but still cant find anything.
I'm running CM 10.1 (6/30) build and it charges over my pc usb.
I did initially have a problem where it didn't recognize it as a storage device for copying files over,
but then I got it working. Not sure if it wasn't charging at that point but I think it was. Wish I could
remember what I did to get the mass storage working.
pdx1138 said:
I'm running CM 10.1 (6/30) build and it charges over my pc usb.
I did initially have a problem where it didn't recognize it as a storage device for copying files over,
but then I got it working. Not sure if it wasn't charging at that point but I think it was. Wish I could
remember what I did to get the mass storage working.
Click to expand...
Click to collapse
????? damn! i dont want to reinstall but if i have to i will.... you used the 6/30?? hhhmmm thats weird cause i used the same thing. is this what you used, [cm-10.1-20130630-UNOFFICIAL-ovation-emmc] ????? i would like to say that its no big deal but it kinda is. i used to charge while i loaded new comics, books & magazines. now i have to charge and load separately (yeah i know its not a big issue but i got used to doing both at the same time). btw, thanks for your input pdx!
Last night I let my HD+ discharge to 1% for the first time. (It was interesting. It reported 5%, then jumped up to 7%, ran for about 15 minutes, then suddenly announced 1%.)
I immediately turned it off and put it on the charger.
I usually don't let it get below 15%. Fortunately I dodged a bullet in that it started charging when I plugged it into the OEM charger. (I read later in the forum that sometimes you can't get the HD+ out of deep discharge.)
BUT . . . the charging behavior has changed. I can't charge the HD+ up anymore when it's off. It has to be on now to charge.
IIRC, it used to be that I could plug the HD+ into the charger when the HD+ was off, the yellow light would come on, and the unit would charge. It doesn't do that anymore since the deep discharge.
I came back into the room about 15 minutes after starting the charge and I noticed the back light on the HD+ was on. The unit had mysteriosly turned itself on and booted when I plugged the charger in.
So I turned it off while the charger was still plugged in. The yellow light went off and when I came back in an hour, the unit had not charged at all.
In the end, I had to disconnect/connect the charger and let the unit boot to charge it up.
Doesn't seem right that the unit should do an un-commanded power on. Not sure if that's a bug or supposed to be a "feature." (Like, to tell the B&N warranty team that you let the battery go deep?) I can't imagine how this could be a ROM issue - the power button is a "soft-switch" which is controlled by hardware or firmware. But I cleared /cache and /dalvik anyway. (No change.)
Anyone else got this behavior? I read one post in the forum where a guy had to open the unit and unplug the battery to get a "reset" just to get it to take a charge. I'm hoping I don't have to open the case.
So, maybe I don't recall correctly?
I found a post over in the cyanogenmod forum where someone claims the Nook HD+ needs to be on to charge.
So maybe I'm all confused. Maybe my HD+ always turned on when I charged it and I never noticed.
Can someone confirm for me if their HD+ will charge powered off?
Thanks.
PMikeP said:
I found a post over in the cyanogenmod forum where someone claims the Nook HD+ needs to be on to charge.
So maybe I'm all confused. Maybe my HD+ always turned on when I charged it and I never noticed.
Can someone confirm for me if their HD+ will charge powered off?
Thanks.
Click to expand...
Click to collapse
I'm pretty sure the stock HD+ works that way but I don't know if that's a hardware thing or a B&N software thing. I usually just plug ours (we have both HD and HD+) when they get down to 25% or so and they rarely get turned off.
PMikeP said:
I found a post over in the cyanogenmod forum where someone claims the Nook HD+ needs to be on to charge.
So maybe I'm all confused. Maybe my HD+ always turned on when I charged it and I never noticed.
Can someone confirm for me if their HD+ will charge powered off?
Thanks.
Click to expand...
Click to collapse
Pretty sure it only charges when it is powered on. You will see the amber light.
Korgy said:
Pretty sure it only charges when it is powered on. You will see the amber light.
Click to expand...
Click to collapse
Well, it's easy enough to power it down to see if yours will charge powered off.
I was fairly sure I was able to charge power off, since I woulda thought it was odd that I couldn't. And I thought I had done that at nights, powering it down for the night but charging it up at the same time to get ready for the next day.
But again, it could have always been that I just never noticed the unit had booted itself on. Then I would have assumed I had powered it on when I got back to it.
Anyway, I await some soul to power theirs down while plugged in and report if theirs charges powered off.
PMikeP said:
Well, it's easy enough to power it down to see if yours will charge powered off.
I was fairly sure I was able to charge power off, since I woulda thought it was odd that I couldn't. And I thought I had done that at nights, powering it down for the night but charging it up at the same time to get ready for the next day.
But again, it could have always been that I just never noticed the unit had booted itself on. Then I would have assumed I had powered it on when I got back to it.
Anyway, I await some soul to power theirs down while plugged in and report if theirs charges powered off.
Click to expand...
Click to collapse
Like I mentioned, it doesn't. It turns on when you plug it in.
Korgy said:
Like I mentioned, it doesn't. It turns on when you plug it in.
Click to expand...
Click to collapse
Thanks. I misunderstood you earlier when you said "Pretty sure it only charges when it is powered on." The "pretty sure" part didn't sound to me like you were making a definitive statement, but only guessing. But I understand you now.
PMikeP said:
Thanks. I misunderstood you earlier when you said "Pretty sure it only charges when it is powered on." The "pretty sure" part didn't sound to me like you were making a definitive statement, but only guessing. But I understand you now.
Click to expand...
Click to collapse
No worries my man. Does your nook do the same thing?