Related
Hello Everyone,
I am new to the forum, but not totally new to rooting and flashing ROMs. I have a MT3G (second android phone to come to the market...yes I'm old school ), rooted and flashed CM7-Gingerbread 2.3.3 and it's working very well.
I also managed to buy a NookColor, immediately rooted it and flashed phiremod nook v5.1. and everything is very good. My Quadrant Score is 1485
However, what I've noticed is that if I compare the battery usage on mytouch 3g vs the nookcolor I see something interesting and I think it might have to do with the overall battery drain I've noticed on the nook....I'm hoping someone here can shed some light.
When I go to my settings > about tablet > battery use, I can see a graph on the top. If I click it, it shows a nice relationship between time (x-axis), battery % (y-axis) and underneath it are 5 variables (Phone Signal, Wi-fi, Awake, Screen on, Charging). These variables are key because you can see what is really draining a battery.
See the two attached images. One is from mytouch 3g and the other is the nook. What you can see is that when my nook is sleep, it drains a lot faster than MT3G and in fact what you see is that the PHONE SIGNAL is constantly on, where when my MT3G is sleep, the PHONE SIGNAL IS NOT....
Is there a way to completely remove this 'phone signal'...I suspect we can get more battery life out of our nook if we can just remove this!!!
Thanks for reading.
easy to do if you have adb.. otherwise use terminal.
rename the following files in /system/app
Mms.apk
TelephonyProvider.apk
Phone.apk (phone will keep forceclosing.
reboot.
If you are not using adb, just force power off using the power button.
When it comes up, you will have much better battery life.
Yeah, I saw that posted somewhere, and I've done that. So does the phone signal still appear on yours after you renamed it?
I wonder if this procedure is enough.....
labrazil said:
Yeah, I saw that posted somewhere, and I've done that. So does the phone signal still appear on yours after you renamed it?
I wonder if this procedure is enough.....
Click to expand...
Click to collapse
Enough to remove Phone from being listed in Spare Parts? Yep. It won't change anything.
CM7 is really bad with the battery. It doesn't sleep properly. The phone or lack of phone has nothing to do with it. It doesn't have a cell radio after all ;-)
Apparently there is a bug and it crashes or something? when it sleeps. I read that the devs just disabled sleep until they can get it fixed. I think that will probably happen after video is all working.
It still easily lasts through the day with a fair bit of use though. I just charge every night instead of every third ;-)
ylixir said:
CM7 is really bad with the battery. It doesn't sleep properly. The phone or lack of phone has nothing to do with it. It doesn't have a cell radio after all ;-)
Apparently there is a bug and it crashes or something? when it sleeps. I read that the devs just disabled sleep until they can get it fixed. I think that will probably happen after video is all working.
It still easily lasts through the day with a fair bit of use though. I just charge every night instead of every third ;-)
Click to expand...
Click to collapse
Okay, so it's safe to assume that the devs are working on this for future ROMs/Kernals? I really like my nook even though I just got the wifi-xoom today.
There's already been a 20+ page thread on this, where comparitive testing found no actual diference in battery life by removing those functions. The result is a purely cosmetic change where the power consumed under "cell standby" is shifted to "phone idle" or something else, I forget exactly. Any perceived improvements in battery life are a placebo effect and/or simply the result of the variables in different day-to-day usage.
Removing them also causes Market problems with certain apps not showing up due to "incompatibility" with devices lacking those functions, which I suspect is why they are not removed in the first place.
The NC's "high" power drain on CM7 is because it's not allowed to actually sleep due too a kernal bug which prevents it from reliably waking up. This will get fixed eventually. Right now, "sleep" simply turns off the screen.
After updating to 2.3.3 using COS-DS, my phone seemed to work fine. I initially had a battery drain with nothing taking up large battery usage, so I reset the battery stats and all was well.
However, after unplugging my phone from charging all night (100% upon unplug), I checked my phone two hours later and saw that my charge was down to 22%. Upon checking Battery Usage, I found that Android OS is using 76%! The only thing I've done today was answer a couple SMS messages. I don't have Sync, GPS, or Wifi on, but I do have Mobiledata and 3G+2G on, as well as Background Data. The only widget I have is Google Voice, which I've removed to no avail. I've tried rebooting (twice), but it stays the same. I've turned off data, gone to 2G-only, and turned off background data, and it still continues. In Spare Parts, under Battery history it says that the only thing using up the battery is Suspend in CPU, and Battery Status says that the battery's health is good. Something really strange is that after the initial power-off upon the discovery of this issue, I immediately plugged it into the charger. After about 3 minutes I turned it back on, and found that it's already charged back up to 86%. WHAT.
Also, I haven't plugged it into the computer once in the last few days, so it's not USB-bug related. Any ideas on what's going on here?
EDIT: Ok, it's been a couple hours since this began, but just now I checked the phone (it was on the charger) and suddenly EVERYTHING is gone from the Battery Usage page, save for Display and Android OS, and Android OS is back down to 5% now. Really bloody weird, but the issue seems to have resolved itself.
I've had similar issues. When my battery runs flat, dead. I plug it up and switched it on, and it shown "Charging (32%)". I get different but similar results with different ROMs. It could simply mean the battery is wasted couldn't it?
Have you gone into the Recovery mode and wipe the Battery Status? I was having similiar issue (but not a fast drain), I did maybe about 5 wiped and reboot the phone. My problem seem to go away.
I went from 1 day or less from 100% to having to recharge, to 2 and 1/2 days then charge.
The issue came back later that night, and has been happening ever since.
I've done the bump charge + stats wipe, where I let it charge to 100%, shutdown until green LED, wipe stats, restart, let drain to 0, restart and use. I've tried this about 3 or 4 times, and the issue persists. I've removed my 2 widgets (two sound effects widgets), and it persists.
Also, I've downloaded OS Monitor, and it shows the CPU to be resting at its min, 246.
I'm hoping it's just the battery at this point, and have already ordered another one. I'll let you guys know if that fixes it.
In that case it might be your battery that need to be replace. How old is the battery?
I really have no idea. I bought this G1 used on eBay 9 months ago.
2 things to note:
1. It actually stopped booting last night even while on the charger: I restarted, and it kept getting stuck on the splash image. So I superwiped, reflashed, and the drain is still there even with no user-installed apps.
2. About a month ago, (when I was back on a stable Froyo, which I had been on since I got the phone 9 months ago) it started to randomly shut off. It seemed like if it got just a little too hot (battery got to maybe 30 C, never was able to check what the temp was when this happened), it would shut down and wouldn't get past the boot screen without a reset. I had to either charge it or wait an hour for it to successfully boot again.
In retrospect, this is sounding more and more like the battery. The only thing that's strange is that Android OS takes up such high percentage. Oh well, hopefully the new battery gets here today or tomorrow, hopefully that fixes everything.
Since you have brought the G1 9 months ago, more than likely it's had been over two year or more (about the same age as mine more or less). I doubt that the seller would be giving you a brand new battery.
I noticed the reboot on mine G1 too. Ever so often, my G1 will reboot on me. But I do not have the problem getting stuck at the splash or boot screen. But then I am using the SuperAosp ROM not Froyo.
Let me know how the new battery will work out, I might have to end up getting it myself. Eventhough my battery life got better after I did the wipe battery status, sometime it still drain depending on the day I guess.
I noticed the same result with COSDS.
I moved to Ginger Yoshi with much better results.
Better, but not as good as stock, obviously.
COSDS turned into a real hog on me by the time the second or third reboot happened.
Heeter
I'll stay with SuperAosp, I take the performance over the battery life any day. My battery status an't that bad. Once in the while I used it up in a day or less, other I can stick around for a few days.
The rebooting part was not too bad on my end. Just once in a while. Nothing I can't handle.
@ psychosonic - You might want to try that if you want, Gingerbread Yoshi was one of my first choice before I found what I had.
Alright, got my battery. After calibrating it for one day, then using it today post-calibration, it's functioning phenomenally. After using wifi + internet for a period of time, and sms throughout the day, it's still at 70% 6 hours after charge. Essentially, the only thing that drains the battery is heavy internet use, which seems to make it go down 1% per 2 or 3 minutes.
Internet usage seem to take a lot out of the battery for sure. I know mine take a lot more than 1% every 2 or 3 mins when I use my internet.
Let see how will the new battery pan out. See if it will last you 2 or more days. Keep using it as such, and see where it goes.
Android OS Battery bug
Hi!
1. Install SystemPanelLite Task Manager from the market.
2. Run SystemPanel and open settings and check the "System processes" option. Close settings.
3. Scroll down in the process list until you find the process "android.process.media". If you have a CPU usage of more then 10-30s and the process usage gauge to the left moves up and down you probably have the Android OS battery bug.
At this point you can try the following;
- Shut down your phone. (Not just turn it of. The complete shut-down-power-off-thingy)
- Remove your external SD card.
- Start up your phone again.
- When the scan media is complete, do step 3 above again. If you don't see the problem at step 3 your SD card has a corrupt filesystem. And needs to be reformated. Follow these steps;
- Backup your data first!!!
- Settings -> SD card & phone storage
- Unmount SD card
- Format SD card
- Restore files from your backup.
If the problem persists your internal SD card might have a corrupt filesystem and needs to be reformated. Follow these steps;
- Backup your data first!!!
- Settings -> SD card & phone storage
- Format internal storage
- Restore files from your backup.
More details; What happens when you have a corrupt filesystem is that android.process.media tries to read a file but fails over and over again. The filesystem might not look corrupt to you. And you can read and write files on the SD card without problems. But at some point the android.process.media failes to read the files and loops like crazy, draining your battery.
I had a corrupt filesystem (FAT32) on my external SD card. I also had Android OS battery usage of 60-70% and a fast draining battery. I hope this can help others.
Best regards,
/Pontus
cos & yoshi
cos dds sucks battery.... yoshi"s awesome..!! fr battery!!
if you applied a theme in theme chooser it could have affected it
The battery life on my NC is absolutely horrible. I average 3 hours unplugged, 1 hour if I'm using it. It doesn't seem to charge up all the way -- after plugging it in the light on the Nook cord is orange for about 10 minutes then goes green even though the screen still stays "Not enough power to turn on - Try again in 15 minutes".
I've tried using software like juicedefender and other battery mon apps that are supposed to be able to predict when you're going to lose your power -- but they appear to be useless. Often I'll get the "Your Battery is Getting Low" message at the very same time as the "Shutting Down" dialog appears -- almost like there was a very sudden dramatic drop in available power.
I am beginning to wonder if it's the result of faulty hardware.
Has anyone else experienced problems like these? Or should I restore back to stock and send it in for warranty?
That definitely sounds abnormal. I'd probably restore it back to factory and if it's still acting like that, you'll know it's not due to any modifications.
Yeah, I second that. Mine drains pretty quickly, I go from 100% to about 60% in a day with normal usage. I use Wifi Auto Toggle to turn Wifi off when the screen turns off. So far I have to recharge every other day or so. But what the OP has going on sounds pretty extreme.
What ROM are you using?
What programs have 'keep screen alive' do you run?
How bright is your screen?
Screen/wifi burn most of the power in this - so minimizing them helps battery life considerably.
I had one game (HexDefense) that prefers to run in maximum brightness and burned through the battery very quickly. Nook was the warmest I've ever seen it and the temperature on my battery monitor actually moved for the first time ever.
SO if you're getting 3 hours doing nothing, that's bad. If you're getting 3 hours running a really processor/graphic intensive game, that's good.
If you can get it back to stock and still have low battery life, consider talking to the manufacturers about it.
OverDrive33 said:
The battery life on my NC is absolutely horrible. I average 3 hours unplugged, 1 hour if I'm using it. It doesn't seem to charge up all the way -- after plugging it in the light on the Nook cord is orange for about 10 minutes then goes green even though the screen still stays "Not enough power to turn on - Try again in 15 minutes".
I've tried using software like juicedefender and other battery mon apps that are supposed to be able to predict when you're going to lose your power -- but they appear to be useless. Often I'll get the "Your Battery is Getting Low" message at the very same time as the "Shutting Down" dialog appears -- almost like there was a very sudden dramatic drop in available power.
I am beginning to wonder if it's the result of faulty hardware.
Has anyone else experienced problems like these? Or should I restore back to stock and send it in for warranty?
Click to expand...
Click to collapse
You really question this? Something is wrong with your NC, cable, or charger.
Hi
Can see a number of threads about short battery life, none quite match mine:
When I got the phone about 6 months ago I took it abroad with me in the first few weeks. Battery life with normal usage was about 24 to 36 hours with fair use.
Dropped the phone, back came off, battery fell out and gold contacts got damaged.
Ordered replacement OE battery from Amazon. Looks identical to original. Battery life as before, for about the first two weeks. Then got worse and worse until down to about 4 hours. Sent it back, replaced. Replacement is going the same way.
Haven't done anything with the ROM, it's all as it originally was, albeit I've installed more apps since it was new.
Battery meter thing built into the phone (in Settings) shows nothing remarkable.
What is odd, and coincidental: if I leave the phone next to me in the house, it won't always pick up emails on ActiveSync (Exchange) unless I activate it (e.g. bring it out of power down mode). At which point you can see it's dropped Wi-Fi. The icon has gone. A second or two later it reconnects (though not before it's used some 3G data - 3G is OK upstairs, barely a signal downstairs as we live at the bottom of a hill so often drops to "G") and then brings down the emails.
This means it churns through 500MB+ of data over its own 3G connection in a month even if I don't take it out of the house, and even when Wi-Fi is available to it, it chooses not to use it. Wi-Fi reception is pretty poor, compared with e.g. our laptop (that shows excellent strength downstairs, phone shows one bar). It did not do this when I first got it. Curiously my old HTC phone did this too, it struggled to switch properly between its own 3G and Wi-Fi and just got stuck on one or the other. We are in a weak signal area.
Are these things related?
Has the phone become faulty? (Bearing in mind battery life much better with the original one)
Is it just a duff batch of batteries and I should send the battery back for a refund, and get one somewhere else?
Thanks
Mark
Typical behavior for a counterfeit battery but the other symptoms suggest that something got damaged and is stressing the battery. Try re flashing the phone. A sudden loss of power could potentially damage some system files.
Thanks rogem_kk - can I just clarify, when you say "reflashing the phone" do you mean resetting it back to its original state (I'm guessing there's a key sequence you press, I can look in the manual to find that out) or completely reloading the OS?
As regards "sudden loss of power" sadly this happens quite often, because the phone crashes now and again and I have to take the battery off the back and put it back in again. The Android OS seems able to be completely taken down by a failing application (I think Flash movies on web pages are the main culprits) quite readily but I'd got very used to that since my last phone was a Windows Mobile one (the old one not the new one) which had the stability of a damp cardboard box in a strong wind.
I mean wiping it clean and installing the ROM from scratch. Factory reset only removes your data and does not restore/replace system files.
Now may be a great time to flash a custom rom, if it all goes well then do a back up with Nitrality app or similar, while you're at it try out a modem i9000 ZSJPG, you can flash it separately via ClockWorkMod, doubled my battery usage with it, great reception & coverage, that way if you at least get a genuine SGS battery you'll get the most from it.
If you're unsure of flashing you'll need to get reading in the rom section, not too hard to learn.
Many thanks.
Down to 3 hours idle time now - it drops by the day.
Have emailed Samsung on the off-chance they can identify a counterfeit battery from the serial number, so I'll see what they say. Could make for an interesting exchange with Amazon (direct, not via a reseller or third party).
Argos appear to be the "official" resellers for Samsung products in our area but they don't actually sell batteries. As otherwise I'd be tempted to buy one there on the basis that it ought to be genuine, and compare. But haven't rebuilt the phone yet, waiting to see what Samsung come back with.
Hmmm...
"Problems like this, although seemingly severe, can occur when the
Android software on your phone becomes out of date. You can update the
software by simply downloading our Samsung Kies programme. Follow the
link below and choose option ‘save’. Then for safe installation of the
drivers, once save is complete, turn your computer off for a few minutes
and reboot the PC. Once fully loaded again, without opening any
applications on the computer, simply connect your phone to the PC with
the USB lead, and your phone should be automatically set you finish the
installation of Kies. When Kies loads and finds your device, you should
be offered an update that will iron out these issues.
If you require any further assistance, please contact Samsung again and
we will be more than happy to help."
I had one of those so called 'original batties' it was a load of rubbish. Still using original one but its no holding charge for as well after a year of use. Maybe time for a real replacement...
dtmark said:
Hi
Dropped the phone, back came off, battery fell out and gold contacts got damaged.
What is odd, and coincidental: if I leave the phone next to me in the house, it won't always pick up emails on ActiveSync (Exchange) unless I activate it (e.g. bring it out of power down mode). At which point you can see it's dropped Wi-Fi. The icon has gone. A second or two later it reconnects (though not before it's used some 3G data - 3G is OK upstairs, barely a signal downstairs as we live at the bottom of a hill so often drops to "G") and then brings down the emails.
This means it churns through 500MB+ of data over its own 3G connection in a month even if I don't take it out of the house, and even when Wi-Fi is available to it, it chooses not to use it. Wi-Fi reception is pretty poor, compared with e.g. our laptop (that shows excellent strength downstairs, phone shows one bar). It did not do this when I first got it. Curiously my old HTC phone did this too, it struggled to switch properly between its own 3G and Wi-Fi and just got stuck on one or the other. We are in a weak signal area.
Are these things related?
Has the phone become faulty? (Bearing in mind battery life much better with the original one)
Is it just a duff batch of batteries and I should send the battery back for a refund, and get one somewhere else?
Thanks
Mark
Click to expand...
Click to collapse
Forgive the curtness of the email, am at work typing one handed while chowing down lunch
First point - you dropped your phone. I know that the new battery went okay for a while but is it possible that the phone itself may have been damaged?
Secondly, Email on Activesync over 3g will absolutely smash the hell out of your battery. Especially if you have push email going. Is it on push or is it set to check every so-and-so amount of time? Too short a period will kill the battery. The "Stock" email app that comes with Gingerbread 2.3.3 or lower seems to be just a big hog over push (for me at least). I also recommend changing the email "Amount To Sync" to a shorter number of days and set the amount of data to a lower value than stock (ie, "Headers Only" or 50k or something) so you download attachments on **your** terms.
Thirdly, you state you're in a poor reception area. This will most definitely affect the battery as the phone on a low signal or zero signal will waste battery trying to reconnect to the tower. Check your "Cell Standby" and see how muck time without connection you have. If it's anything above nothing, it's draining your battery. I recommend flashing a new modem (you'll need to investigate which one is good for your region/country/carrier) through ODIN (or Heimdall). Be careful when doing this and make sure you read up on the hows and what-to-do and what-not-to-do before you do - there is a (small) chance of you killing your phone and I do *not* want you to come back onto this thread and say it blew up (I want you to say "YAY THANKS WOGFELLA" ) Doing this voids your warranty so only do it if you either don't care or you really really want to fix your issue (and by default you don't care)
Fourthly, your wifi coming on and off - go to your Wifi settings, press your menu button and click ... advanced? Can't recall exactly (on ICS now). From there you can set your "Wifi Sleep Policy" to either "Never" or the other option that I can't recall. The default is set to turn the Wifi off when screen is off which of course means you lose your Wifi connection. **For your Email issue, try this first.**
Fifthly, your Wifi signal being weak in your display does not *always* equate to an actual poor connection. Sammy does many great things, but he does mess about a bit with icons and funny business. Check step four above and if you get bad Wifi reception when the phone is off (or while using it) then try messing about with your Router settings and also with the settings on your phone (take notes before doing so, I'm just throwing you ideas here....don't come back to me and ask me how to reset your router settings either!!!)
If that doesn't help then try flashing a custom kernel (kernel controls the Wifi). As above, doing this will void your warranty.
Sixthly, you say that everything was hunky dory and then went haywire. I reckon there may be an app doing funky things.
Try installing CPUSpy from the market and check to ensure your phone is going into decently long periods of "Deep Sleep"
Also, try installing the below app from this thread.
http://forum.xda-developers.com/showthread.php?t=1179809
You're looking for high "Wakelocks" which will impact on your phone being awake instead of...well, asleep...when the screen goes off. Awake phone = cpu processing (even if it's not doing anything) = battery drain. Use Chamonix's recommendations on what is classed as a high amount of wakelock.
Facebook 1.7 for example, keeps the phone awake while checking notifications that just plain ain't there. For me, once I wiped this app, I regained about an extra 2-4 hours per day in use.
Seventhly, look over this thread:
http://forum.xda-developers.com/showthread.php?t=939752
Has a heap of tips that helped me (before I got sick of stock Sammy and jumped to CM7 and then ICS)
Eighthly, and this is one that probably doesn't need to be said - cycle your battery and (controversial) bump charge. I mean, let the battery drain fully. Take the battery out for 5 mins. Put it back in and see if it turns on, and if it does repeat. Then fully charge to 100% and then unplug and plug back in. If your phone is already rooted then you can also wipe Battery Stats from Recovery.
Lastly - have you tried factory resetting your phone? It may wipe whatever it is that's making your phone freak out (if not the email) and you can start again. If you find that the battery goes bananas again after installing that app, you've found your issue.
So...to sum up:
Check your phone contacts.
Check your Wifi sleep policy.
Check your Email update rate.
Check the length of time you have the sync set for,
and the amount of data per email downloading.
Check to see if you are going into deep sleep.
Check to see if there are any apps holding wakelock (and bugger them off)
More extreme:
Factory reset.
Mess with your router settings if your wifi signal is still weak.
Very Extreme.
Flash Modem
Flash Kernel.
One thing not specified: What version Android are you running? SGS comes from Eclair up to (once Cyanogen and TeamHackSung get it rolling properly) Ice Cream Sandwich.
Hopefully *SOMETHING* in the above helps you.
Good luck!
Thanks for taking the time.
Sorted out the Wi-Fi sleep issue, CPU Spy showed the phone was going into deep sleep when idle, so no "smoking gun" discovered with that.
Reset phone, and set it back up again with basic email and no new installed apps. Have left it on default (minimal) donwload settings. Had already got rid of Facebook.
Battery life is better. Have begun reinstalling a few apps now and keeping an eye on it.
Will report back - thanks again all.
dtmark said:
Thanks for taking the time.
Sorted out the Wi-Fi sleep issue, CPU Spy showed the phone was going into deep sleep when idle, so no "smoking gun" discovered with that.
Reset phone, and set it back up again with basic email and no new installed apps. Have left it on default (minimal) donwload settings. Had already got rid of Facebook.
Battery life is better. Have begun reinstalling a few apps now and keeping an eye on it.
Will report back - thanks again all.
Click to expand...
Click to collapse
No dramas - just be careful as CPU Spy will show length of time in deep sleep but a high proportion of wakelocks won't really be detected and those wakelocks are the ones that smash your battery when sitting "idle"
As you have reset then I think you need to let your battery calibrate first (let it drain fully and recharge fully a few times and that's all you can do if you haven't rooted your phone)
.. one more update..
Battery life is better, but not much better. It still won't last a day without charge even with very light use, 7 hours is about the maximum. I'm certain it used to be better than that when I got it e.g. it survived a whole day on holiday using email and maps quite a bit.
Have changed to 3 from O2 but will have to revert back as 3 doesn't get a signal at all downstairs in some parts of the house. Does mean the phone is going on and off network a lot at the moment.
I reverted to Samsung to tell them their link didn't work and they have sent a link to an authorised dealer for parts if I wanted to buy another battery. I'm all for buying the real thing which is why I bought an (apparently) OE one from Amazon which was about £16 not the £5 that some were.
However this is, er, forty four pounds for a tiny little battery.
http://www.4mysamsung.co.uk/cgi-bin/product.pl?PID=2986318&brand=&model=galaxy s&part=
They also sent links to repair centres.
Now I plugged it into charge earlier, and even after 8 hours, it was dead. Plugged it in again - beeps once as normal - nothing on the display - still not charging. Take battery out, put back in, repeat. Charging now.
Might make you wonder if that part of the phone got damaged e.g. the "socket" where the mini USB thing/charger goes in, but, it's always worked before. It doesn't for instance fail to detect if I plug into the PC and it's never done this before either.
Given how much the battery is and the fact it might be getting to the point of dying altogether I wonder whether to just get a quote for repair and go that way for certainty.
One might have thought it's as simple as: take the thing somewhere and have the battery tested to prove one way or the other.. but I'm really not sure where would do that other than the repair place.
I'd be prepared to try replacing the OS as suggested, but it does remain the fact that the thing worked better when I first got it and even after a complete reset it's still playing up so I feel a sort of mental paralysis over what's best to do now
I'll have a look at the wakelocks thing next when it charges again. If it charges
it's been through a few rom's...
it just shuts off in the middle of use, sometimes rather quickly (30 seconds), sometimes I can get a good set of minutes out of it.
Twice it went into some sort of alarm mode (although not recently).
i'm wondering if anyone is familiar with any type of thermal shutdown's with these and/or if it's possible the proc could have been damaged.
i'm not sure how to test it, I guess I could go through the hassle of putting the original b&n fw on, and seeing if it still shuts down.
Thistleknot said:
i'm not sure how to test it, I guess I could go through the hassle of putting the original b&n fw on, and seeing if it still shuts down.
Click to expand...
Click to collapse
That's what I would do. Sounds like hardware to me. If stock messes up, time for warranty.
Sent from my Nook HD+ running CM10.1 on emmc.
Thistleknot said:
it's been through a few rom's...
it just shuts off in the middle of use, sometimes rather quickly (30 seconds), sometimes I can get a good set of minutes out of it.
Twice it went into some sort of alarm mode (although not recently).
i'm wondering if anyone is familiar with any type of thermal shutdown's with these and/or if it's possible the proc could have been damaged.
i'm not sure how to test it, I guess I could go through the hassle of putting the original b&n fw on, and seeing if it still shuts down.
Click to expand...
Click to collapse
I had the same problem. My HD+ would get very hot near the bottom left corner (when the screen is facing me), mostly on the back, especially while charging. It would warm up fast for me but it would also reboot itself while idle (or when it wasn't too warm) since I think the excessive warming damaged something. Apparently, some Nooks have an overheating problem and this happened before I installed any ROM. Some of the logs I looked at said that my CPU was getting too hot and my memory was giving errors. I looked at the /proc/last_kmsg file for that and you can do the same if you're comfortable with looking at system logs.
If any of that sounds like your problem, your HD likely needs to be replaced since it is a hardware problem. Go back to the stock ROM and recovery anyway and try using it. If it's fine after a few days, you likely don't have a hardware problem. Otherwise, and especially if it gets hot with charging, you can take it to a B&N store. I did that and the only way I was able to get it replaced was by having them charge my Nook and having them feel the excessive heat coming from it. Otherwise, you can probably still go to the store, but you'll have a harder time proving that your HD reboots unless it does it every few minutes consistently (they played with mine for 3 minutes when mine would reboot every 1-2 hours).
Good luck.
Zachnorn said:
I had the same problem. My HD+ would get very hot near the bottom left corner (when the screen is facing me), mostly on the back, especially while charging. It would warm up fast for me but it would also reboot itself while idle (or when it wasn't too warm) since I think the excessive warming damaged something. Apparently, some Nooks have an overheating problem and this happened before I installed any ROM. Some of the logs I looked at said that my CPU was getting too hot and my memory was giving errors. I looked at the /proc/last_kmsg file for that and you can do the same if you're comfortable with looking at system logs.
If any of that sounds like your problem, your HD likely needs to be replaced since it is a hardware problem. Go back to the stock ROM and recovery anyway and try using it. If it's fine after a few days, you likely don't have a hardware problem. Otherwise, and especially if it gets hot with charging, you can take it to a B&N store. I did that and the only way I was able to get it replaced was by having them charge my Nook and having them feel the excessive heat coming from it. Otherwise, you can probably still go to the store, but you'll have a harder time proving that your HD reboots unless it does it every few minutes consistently (they played with mine for 3 minutes when mine would reboot every 1-2 hours).
Good luck.
Click to expand...
Click to collapse
I got stock on there and no more issues
Thistleknot said:
I got stock on there and no more issues
Click to expand...
Click to collapse
I've been having the same problem with my HD+, since using CM/Liquid roms.
It shuts down with battery 0-1%, upon charging it jumps right back to 90%, .
Upon disconnecting charging cable somestimes, it shuts off almost instantaneously.
So what do you conclude from issue solved using stock?