Related
I'm at a bit of a loss here..
Instead of powering on, the battery light goes *blink* *blink* *LongPause* ..
I have a (3 day old) Archos 101 and updated to the most recent software when it I first powered up the device. I probably drained my battery yesterday when I put it in the night stand drawer while Aldiko was trying to import a fresh ePub file..
When I turned it on this morning, it blinked once and stopped. When I plugged in the charger (figuring the battery was drained) the "blink blink longpause" started. Long pressing the power button stops the blinking. If the power is connected, the power light burns, so I figure its charging. If its not on power, the power light doesnt burn. I tried the "Hold + while powering up" to boot into recovery but that doesnt change anything.
The Archos FAQ said something about charging the battery, but its been charging for about 9 hours now and the device still wont turn on.. (Green light still burns continuously while charging, not when disconnected) My XDA forums search didnt turn up any results..
Anyone got a clue what this means, what I can do or whatever? Tnx
Maybe the screen froze. Try resetting it by holding down the power button for ten seconds or so. If you're charging it at the same time, it should boot right back up after the reset is complete.
Sent from my A32
Yes, I tried that :/ That's what I meant by long pressing the power button. It changes the blinking pattern to just the burning power led..
Thanks for the tip though!
Sent from my HTC Magic using XDA App
Give it another shot. Disconnect the plug. Hold down the power button for a little over 10 seconds. I would do like 15 in my head. Wait a few seconds after that and press the power button quickly once. If you get the steady green light just wait. Dont keep pressing it. You should eventually see the Archos splashscreen. I have had this happen on several occassions when the system has been idle for a while with the screen off. Hope it works.
Ok; I did that.
Except that when I push the power button that last time to have it boot up; the power light just flashes once. I didnt touch it to be sure and it doesnt start.
When I plugged in the power supply after that, the *blink blink longpause* resumed.
When I hold down the power btn now, it reverts to continuous burning green power led.
Its been charging for more than 24 hours now.
This sounds like what happened to mine. it happened after about 3 days, too. I finally got my replacement the Tuesday before Christmas.
If you get it powered up, get your stuff off & clean up your personal info (something I wasn't able to do.
From my post on AchosFans Forum:
For several days my Archos wouldn't take a charge. I didn't think anything about it the first day...stuff happens. After using it the next time, not really thinking there was a problem I plugged it in (and of course it turned itself on again). So this morning it only had 8%. I messed around a few minutes before work resetting it & such - checked setting>about>battery stats and it said "charging" and 0% battery. When I came home this evening it still said "charging" & 0% battery. It then shut down (with a not-normal screen flicker) the first time I unplugged it (hoping to cycle it or get lucky) and it is now a brick. When I plug it in now the charging light did a fast-double-blink and it it remained dead.
I called Archos & they told me to send it back. She didn't ask for much info before telling me to send it, which I took to mean that it is a known issue.
Same happened to me
The same has happened to me after the archos 101 drained its battery fully. I think the firmware has a flaw where it lets the archos drain its battery too far. In that state, hooking it up to the charger wont make it start charging all the time.
I had the blink-blink-blink problem also, even after it had been on the charger for hours. Finally it started working (and charging! )again after lots of 15-second Powerbutton presses, some in combination with Volume Up or Volume Down, and some with and some without the charger connected. Suddenly it turned on (showing 0% charge in the Settings, Information panel indicating it had fully drained and hadn't been charging in the previous hours) . I advice you to keep trying pressing the Power button 15 seconds with the charger connected, and experiment with pressing it in combination with the volume button, followed by a short Power press to boor the Archos.
In the mean time (till a new firmware comes), i make a habit of not fully draining the Archos (i will install Tasker to let it shutdown at 10%) , and checking if the green led comes on after plugging in the charger. Only when the green led is on, it's really charging. And it should start blinking after a few hours to indicate its full.
My wife has a chinese android iPad clone (a Flytouch II) and guess what? It's also picky at charging and turning on.
The Gravity reply had me scared (tnx though) but I'm glad to report that pwhooftman's post helped!
I plugged it in, put a movie on and started trying to reset/start it. It happened reasonably quickly after that.. I pressed the power button while it was off power, the power led flashed once as before. I plugged in the power. The green light lighted up. I pushed the power and + for 15 seconds, and pressed the power button once shortly. Unlike the other times, the blinking pattern didnt start and the green light kept burning. Hopeful, I put it down and waited - as the FAQ said it would start when it d charged more. Finally after a while, I pressed the power button and it booted. Not exactly exact science, but Im just happy that it works again :/
I guess the "blink blink longpause" means something like "I know I've got power but I cant seem to load my battery" - Archos should have this info in their manuals.
Thanks guys
G3n said:
The Gravity reply had me scared (tnx though) but I'm glad to report that pwhooftman's post helped!
Thanks guys
Click to expand...
Click to collapse
Nice to know I can scare people...and it isn't Halloween!
I tried everything I could think of to get it to take a charge, with no luck. The problem I had with mine was the times it wouldn't take a charge BEFORE I had drained it - that is why it got drained in the first place.
I hope it was only mine!
He s at it again. Drained to 3% and now it wont charge anymore. *sigh*
except he wont even do the blinking anymore now.
Seems to be a fairly common issue with these tablets :/
Same thing was happening to me too. Dunno if this will work for people, but here is how I fixed mine.
Hold your finger on the power button for 10 seconds while the blinky light is on. This should stop the light completely.
Then plug the charger in. This gave me a continuous light rather than a blinky light. Leave it like that for a couple of hours and then try powering it on again.
Hope this works for others.
Had this happen to me once so far. Seems to have to do with it going into a sleep state or something. If I leave it for long and the screen turns off. Sometimes it won't come back up without first holding down the power to shut it down (even though I can't see anything on the screen) and then waiting to boot back up. I had to plug it in, get the steady light and then power on and it worked.
OK, I know this sounds weird...
But what's the temperature of the A101 like?
I had an identical problem a short while ago, and a forum post suggested that the tablet could be too cold. I thought it was a total shot in the dark, but I wrapped the Archos in a quilt for a few minutes, and amazingly enough, it popped back into life with the charger plugged in, and has been pretty fine since then.
To be fair, it could be one of three things: (i) temperature is the issue, (ii) coincidence, (iii) a bad connection in the pins/socket of the adapter input on the Archos 101 which just needs 'jiggling.'
I have also noticed that if I charge the Archos while it is in standby, I never get more than 92-94% battery. If I shut it down, plug in, then shut it down again when it restarts on power supply insertion, I can usually get 98% battery, at the least, sometimes 100% battery.
I agree, we shouldn't have 'quirky' devices, or have to wait for firmware to fix them, but other device makers have had similar problems in the past with battery reporting, until appropriate firmware fixes.
it happened to me last night frustrated the heck out of me couldn't get it to turn on no matter what i did, so i took it back to pc world and the guy said
"what would you like to do, out of curiosity do you like it?" I replied no and he said "then ill refund you"
i then paid the extra on a galaxy tab and not looking back the archos was a complete pile of sh!te! I almost cried when i turned it on and spent the next two months convincing myself i actually liked it.
its woefully made, cheap and tacky, screen is pathetic and the memory appalling.
i know its cheaper than tab and iphone but for 270 it should still be fit for purpose and this is not it's the worst gadget ive ever owned by a long long shot, i didn't even show it off at work because i was so embarrassed at how bad it was.
G3n said:
He s at it again. Drained to 3% and now it wont charge anymore. *sigh*
except he wont even do the blinking anymore now.
Click to expand...
Click to collapse
So, how did the story end?!? Did it survive?
Ok...
I kid you not, i've tried warming the archos up with a hot water bottle for several seconds and that did the trick appearently...
Had the same problem.
TheTen said:
OK, I know this sounds weird...
But what's the temperature of the A101 like?
I had an identical problem a short while ago, and a forum post suggested that the tablet could be too cold. I thought it was a total shot in the dark, but I wrapped the Archos in a quilt for a few minutes, and amazingly enough, it popped back into life with the charger plugged in, and has been pretty fine since then.
To be fair, it could be one of three things: (i) temperature is the issue, (ii) coincidence, (iii) a bad connection in the pins/socket of the adapter input on the Archos 101 which just needs 'jiggling.'
I have also noticed that if I charge the Archos while it is in standby, I never get more than 92-94% battery. If I shut it down, plug in, then shut it down again when it restarts on power supply insertion, I can usually get 98% battery, at the least, sometimes 100% battery.
I agree, we shouldn't have 'quirky' devices, or have to wait for firmware to fix them, but other device makers have had similar problems in the past with battery reporting, until appropriate firmware fixes.
Click to expand...
Click to collapse
G3n said:
I'm at a bit of a loss here..
Instead of powering on, the battery light goes *blink* *blink* *LongPause* ..
I have a (3 day old) Archos 101 and updated to the most recent software when it I first powered up the device. I probably drained my battery yesterday when I put it in the night stand drawer while Aldiko was trying to import a fresh ePub file..
When I turned it on this morning, it blinked once and stopped. When I plugged in the charger (figuring the battery was drained) the "blink blink longpause" started. Long pressing the power button stops the blinking. If the power is connected, the power light burns, so I figure its charging. If its not on power, the power light doesnt burn. I tried the "Hold + while powering up" to boot into recovery but that doesnt change anything.
The Archos FAQ said something about charging the battery, but its been charging for about 9 hours now and the device still wont turn on.. (Green light still burns continuously while charging, not when disconnected) My XDA forums search didnt turn up any results..
Anyone got a clue what this means, what I can do or whatever? Tnx
Click to expand...
Click to collapse
HERE is the FIX ! I am on my second A-70/250 - my wife has the 8gb version, and I thought the 250gb one was simply defective - evidently, this IS a known issue, but it can be fixed, and I sent back my other one without reason
Anyways, no more pity party for me, here is the fix - if you have the flashy-power light dealio going on, plug your Archos into the power adapter, plug the adapter into the wall, and plug in the USB CABLE to the Archos, and to your PC - the Archos WILL pwoer up, when it does, it asks if you wish to mount the USB to copy files, select, "YES" and let it sit and charge ! Now - the REASON it does this is VERY simple, and it kills me to admit that I was killing my tablet all by myself ! Disable the "never off" screen thingy - set it for 10 minutes - (settings - display - screen timeout). Go into your power settings as well - (settings - power management) and make sure there is a checkmark in the deep sleep area ! THAT IS IT ! You are fixed ! Dang... I REALLY wish I would have found all this out before I returned the other one - I had SO much stuff loaded on it ! GAH !! - SenKat !
I got the same problem yesterday, it kept blink blink and could not turn on. After 5 hour charging, I warmed it up by hair dryer and suddenly it's on. Crazy amazing! Hahahahahuahuahuahua.
Temperature is main problem. Try with your hair dryer!!! Heheheheheh
Its sounds unbelievable, but low temperatures are indeed a cause.
Sent from my GT-I9000 using XDA App
my a70 had this same problem, left it rest a whole night, then plugged it in to usb and power (usb 1st) and it booted up, hope this helped
Just rooted, overclocked, now when i power off it simply turns on 2 sec after.
How come? Anyone know?
Reflash your kernel, see if it continues.
seshmaru said:
Reflash your kernel, see if it continues.
Click to expand...
Click to collapse
Just did with odin and tried to power off again, it turns on.
Any other ideas?
Pulled my battery to shut it off.
Started the phone, shut it off, and it stayed off. Weird!
Thanks for your help.
its not off, it's underclocked so low it can't even wake up the screen, higher your min clock speed to 600 and see if it still happens, of try removing setcpu or that other one that starts with a T.. whichever you use
Sent from my GT-I9003 using XDA App
stephaneseguin00 said:
Just rooted, overclocked, now when i power off it simply turns on 2 sec after.
How come? Anyone know?
Click to expand...
Click to collapse
I have the same problem, instead of switching off it just reboots, even if I power off from recovery.
What kernel are you using. I'm using Ninphetamine 2.0.5, with VillainROM 2.4.2, with Black Android Theme.
I'd rather not pull the battery, after seeing how flimsy the battery cover when I put it on first, I decided I'd try to avoid fiddling with it if at all possible
ZagatoDB7 said:
I'd rather not pull the battery, after seeing how flimsy the battery cover when I put it on first, I decided I'd try to avoid fiddling with it if at all possible
Click to expand...
Click to collapse
I was a bit shocked by the battery cover when I first got it, but look how wrong we were...
ZagatoDB7 said:
I have the same problem, instead of switching off it just reboots, even if I power off from recovery.
What kernel are you using. I'm using Ninphetamine 2.0.5, with VillainROM 2.4.2, with Black Android Theme.
I'd rather not pull the battery, after seeing how flimsy the battery cover when I put it on first, I decided I'd try to avoid fiddling with it if at all possible
Click to expand...
Click to collapse
Well let me tell you about a little secret: if you hold the power button for 10 seconds the phone will shutdown instantly no matter what.
I have the same problem too, it's very frustrating...
seshmaru said:
Well let me tell you about a little secret: if you hold the power button for 10 seconds the phone will shutdown instantly no matter what.
Click to expand...
Click to collapse
Doesn't work: it turns off, stays off for 2 seconds en boots up again.
I got same problem. Never flashed, never rooted. Got original 2.3.3.
I think I#ll try to flash it to fix it.
got a similar problem. probably not related. after unplugging it from a full charge, the phone kept making the "USB connected" sound. when turned off, it would do one of two things: display the big battery charging indicator while flashing the overheat indicator or turn itself back on.
while powered on, the battery icon will change from charging to not charging. I checked the USB socket and doesn't seem to be malfunctioning and there isn't anything shorting out the contacts. so far now, the battery level is at 87 percent after 48 minutes not in use. and now it's not making the sound anymore. I suppose the battery is malfunctioning.
lotacus said:
got a similar problem. probably not related. after unplugging it from a full charge, the phone kept making the "USB connected" sound. when turned off, it would do one of two things: display the big battery charging indicator while flashing the overheat indicator or turn itself back on.
while powered on, the battery icon will change from charging to not charging. I checked the USB socket and doesn't seem to be malfunctioning and there isn't anything shorting out the contacts. so far now, the battery level is at 87 percent after 48 minutes not in use. and now it's not making the sound anymore. I suppose the battery is malfunctioning.
Click to expand...
Click to collapse
I got a mixed-up thing of the issues on this topic..
When I take off the power socket, the symbol that shows "charging" remains there, and also, it is completely impossible to turn off the phone..
Whenever I turn it off, hard, or standard mode, it turns on again after 2 seconds..
And even if I remove the battery, I put it on again, and then it's back on in 3 sec....
Uh, and when I plug the charger in, when the battery is completely discharged, I have to take it out and back in , several times, before anything appears on screen, and even when it does, there is a temperature warning sign , and a yellow one which usually appear...
I'm getting very frustrated since I just paid 5000 nok (920 USD) for this phone..
And while I really begun to like Android, I guess I'll have to switch back to iPhone with a 4S, or to some better android device, since yes, the gs2 is cool , but I can't stand such issues, since I do run business things, and the phone is of vital importance for me, and not just a console/browsing crap.
Has anyone got any solution on this issue?
It would be crap if I had to send it to service, since it would take a lot of time, and I would have then to buy another temporary phone in the meanwhile...
PLEASE, HELP!
I had this problem, i cleaned the USB port out but that didn't stop it, but i think it helped. I then drained the battery to nothing and it has now stoppped. It's a battery problem, as it didn't switch off like it does when it hits low battery it just died. The battery readings were also inacurrate and every now and then it would do a weird thing like flashing it was charging, but it wasn't. I tried software etc.. and clean wipe before i tried the hardware, so it wasn't the rom i was running. I think the battery is on it's way out, so I've bought a new one.
parker7 said:
I had this problem, i cleaned the USB port out but that didn't stop it, but i think it helped. I then drained the battery to nothing and it has now stoppped. It's a battery problem, as it didn't switch off like it does when it hits low battery it just died. The battery readings were also inacurrate and every now and then it would do a weird thing like flashing it was charging, but it wasn't. I tried software etc.. and clean wipe before i tried the hardware, so it wasn't the rom i was running. I think the battery is on it's way out, so I've bought a new one.
Click to expand...
Click to collapse
Did this actually help? I had all the symptoms everyone has been describing and sent it to Samsung for repair. Their response was that the phone was stuck trying to download a PRL update, but as soon as I got the phone back from them and charged my battery to 100%, removing the phone from the charger caused everything to start again. I'm not entirely sure it is the battery, but have no other ideas.
USB charging port is dead.
Buy a new one on ebay and replace it.
http://youtu.be/sBtEz6sWzZY
erredsha the
Hi all.
Had similar problems about one month after getting my s2. I have unlocked sim card, rooted it and flashed some kernel, shyah i think. And left it with stock rom (Android 4.0). As it was under warranty i reverted completely to stock and took it to the carrier. After one day got it back but they said it had no problem. The fact is that i could in fact turn it off again. After a few days it was back so i flashed a custom rom (resurrection remix at that time) and never had it again.
Now I'm with alliancerom and apolo kernel for a few months and never had it again.
16 gb Nook Tablet running sgt7 12/10 build on emmc.
Will only charge when unit is turned completely off.
Any suggestions?
I have the same problem, I am running 0.6 ROM. Any help greatly appreciated.
Sent from my Barnes & Noble Nook Tablet using xda app-developers app
I'm not sure that I've seen it fail to charge. But I have seen some oddities with each CM10 ROM I tried.
What I do is plug it in while the tab is asleep (The LED is usually green). Normally the tablet will wake and the LED will turn amber. Then I press the power button to put it back to sleep.
I say "normally" because with one ROM it doesn't wake when I connect the charger.
By "oddities" I mean I think the battery stats are getting wacked, but I haven't been able to isolate it, yet.
wellersl said:
I'm not sure that I've seen it fail to charge. But I have seen some oddities with each CM10 ROM I tried.
What I do is plug it in while the tab is asleep (The LED is usually green). Normally the tablet will wake and the LED will turn amber. Then I press the power button to put it back to sleep.
I say "normally" because with one ROM it doesn't wake when I connect the charger.
By "oddities" I mean I think the battery stats are getting wacked, but I haven't been able to isolate it, yet.
Click to expand...
Click to collapse
While the power is on with mine, the charging light is green no matter how low the battery.
When I turn off the power the light turns orange & the battery charges.
My nook tablet also will not charger after a completely clean install of the 12/10 ROM. It shows that it's charging, and the cable is orange, but it doesn't actually do anything unless I power it down completely after plugging it in. Also, the n button doesn't take me to the screen set as default home screen, but to screen 1 instead, all the way over to the left, but installed app icons are installed to the correct screen.
The no charging thing is a big deal for me. It makes this ROM basically useless since I can't use it while it's charging. That means you can forget about heavy use. Everything else about it is awesome but once it's dead I'm stuck reading books on my phone while I wait hours for it to recharge.
Update:
Not sure what caused it, but last night I accidentally shut my nook tablet down before plugging it in, which made it come back on, then I shut it down again. Since waking it this morning, it is plugging in and charging as intended. No idea why, but it does indeed seem to be working fine now, other than the previously mentioned home screen issue.
Try a new cable.
mnosugref said:
16 gb Nook Tablet running sgt7 12/10 build on emmc.
Will only charge when unit is turned completely off.
Any suggestions?
Click to expand...
Click to collapse
Between my kids and me totaling two cables already. I ended up duct taping around the 3rd cable so that it would fill the gap between the surface of the table and plug which made it more solid. I cut of square so to see the nook charging led. I would try plugin in from in store cable or someone else that has a nook if it would eliminate that as a possibility.
imsoenthused said:
My nook tablet also will not charger after a completely clean install of the 12/10 ROM. It shows that it's charging, and the cable is orange, but it doesn't actually do anything unless I power it down completely after plugging it in. Also, the n button doesn't take me to the screen set as default home screen, but to screen 1 instead, all the way over to the left, but installed app icons are installed to the correct screen.
The no charging thing is a big deal for me. It makes this ROM basically useless since I can't use it while it's charging. That means you can forget about heavy use. Everything else about it is awesome but once it's dead I'm stuck reading books on my phone while I wait hours for it to recharge.
Update:
Not sure what caused it, but last night I accidentally shut my nook tablet down before plugging it in, which made it come back on, then I shut it down again. Since waking it this morning, it is plugging in and charging as intended. No idea why, but it does indeed seem to be working fine now, other than the previously mentioned home screen issue.
Click to expand...
Click to collapse
i am having a similar issue, but my cable's led is always green no matter if the tablet is on or off. already tried a different cable and the same issue. also tried a different ac adapter, still the same thing. i wonder why.... any ideas?
UPDATE: tablet does charge just fine when it is off, however the LED is still green while the tablet is off. Weird... hard to say if its software or hardware issue now...
Piece of cake. Although the replacement is a bit lower MhA it's a lot better than the old battery
pepi4 said:
Piece of cake.
Click to expand...
Click to collapse
That's nice to know. Is there a step-by-step guide for it?
Although the replacement is a bit lower MhA it's a lot better than the old battery
Click to expand...
Click to collapse
Which replacement battery did you get?
http://www.batteryship.com/htmlos/htmlos.cgi/batteryship/catalog.html
You even get free tools and they are not junk
How to that I used ... Hard to get pass the women robot talking LOL
https://www.youtube.com/watch?v=3F0glSyvj2s
At first I wondered about this being a smaller battery if it would run down fast. It doesn't !!! Works very well !!!
I changed out my battery with one from the above site, but now every time I plug a USB cable in it to charge it immediately shuts off. Anyone have any ideas what could cause this? Wonder if I got a bad battery..
mpry1 said:
I changed out my battery with one from the above site, but now every time I plug a USB cable in it to charge it immediately shuts off. Anyone have any ideas what could cause this? Wonder if I got a bad battery..
Click to expand...
Click to collapse
That could be a bad/shorted battery. Mine is still going strong! I would try and reverse everything and start over. When I did mine my vol controls didn't work. Didn't have the connector snapped down good enough
I was looking at this one (still am actually although the one you got is cheaper):
https://www.youtube.com/watch?v=3F0glSyvj2s
http://www.newpower99.com/Barnes_No...cement_Kit_p/barnes and noble nook tablet.htm
I am still trying to see if there is a setting that somehow caused my NT to freak out when the battery reaches 23%
But I have this bad feeling I will need to purchase a new battery. By the way, if the nook just shuts off watch the screen closely it usually says "battery too low" for a second before switching off. And if that is the case after plugging it in, you likely have a bad one and I would call the company to get a replacement.
I have been looking around and the only new replacement batteries I find are the two mentioned and both are 3200mh rather than 4000 of the original. How is your battery life since you changed it? Seems like it should be 1/4th what we had when new (or close to it). Or don't you really notice at this point? I have thought about ebay but then they are used batteries and you have no idea how many cycles are left, and likely hold 1/4th less anyway due to their age. *shurgs* not sure which way to go. As of now I am still having a "freak out" situation at about 23% (roughly). If it doesn't get any worse I can live with that, but from what I have read it will only get worse. :/
Anyone know of a battery app I could use to "adjust" the shut down threashold? I have one that will alert me to whatever I set so if I am not watching it will warn me so that will work if I don't have one that will actually shut it down. I know the "calibrating" apps don't do anything except delete the one file that is only usage stats from the last time it was plugged in, so I don't think there is a real way to calibrate it.
Update:
And on another note with the "spare parts" app the 'battery history' option errors with "the application spare parts ) process.com.andriod.spare_parts_ has topped unexpectedly, please try again." Is this normal? It is version 2.3.7. NT Hidden Settings app application settings/battery use works fine and shows the amount of everything that has used the battery since it was last plugged in/charged. Could this error be a sign of the problem with the phantom touches and inaccurate battery display? And if it is a sign of something broken, what and how do I fix it?
I received a replacement battery and it is doing the same thing, so somehow during the battery switch something got wonkey with my nook. It charges OK just powers off to do it. Since it's used by my kids now it's not essential to be on while charging, but I'd still like to figure this out.
mpry1 said:
I received a replacement battery and it is doing the same thing, so somehow during the battery switch something got wonkey with my nook. It charges OK just powers off to do it. Since it's used by my kids now it's not essential to be on while charging, but I'd still like to figure this out.
Click to expand...
Click to collapse
Which battery did you get? And very strange it shuts off when you plug it in. Never seen or heard of that before. It should boot up if off. Or do you mean the screen goes off/goes to sleep but not full shut down when you plug it in? If it is going to sleep, that is likely a app or setting that is doing it. Not sure which but you might want to check any battery apps you have or your settings. It would also depend on which ROM you are running, stock (which I am running) or something else.
Both batteries were the one mentioned in the original post. It doesn't go to sleep when I plug it in, it completely shuts off like no power at all. It will not boot up until I unplug the USB from a power source, although it will fully charge while it is plugged in. I've never seen anything like this and I've been messing with android since my original moto droid 1.
mpry1 said:
Both batteries were the one mentioned in the original post. It doesn't go to sleep when I plug it in, it completely shuts off like no power at all. It will not boot up until I unplug the USB from a power source, although it will fully charge while it is plugged in. I've never seen anything like this and I've been messing with android since my original moto droid 1.
Click to expand...
Click to collapse
Very strange indeed. The only thing I would say to do is turn the USB debugging on and off a few times, to see if that makes a difference. It shouldn't but if you tried two different brands of battery, sounds like it is the hardware on the nook. But that is one really weird bug.
Something interesting I discovered. While I did get a new battery, I decided to do some experimenting. Researching this issue a lot of people said you need to delete the "battery file". There even use to be a option in CWM to remove this file. The thing is the file is deleted every time you plug in the device. So that is not going to help.
Further digging found that some devices you need to plug them in and let them charge. Or run them down for say 20-30 minutes without sleeping then plug in and let it charge fully. For some devices this "resets" the battery management system.
What I found in my tests is the battery gets harder to charge with age. While the little n light might show green, it is likely only 80% charge sometimes 90%. And it takes awhile for it to really get to 100%. What I did was let it charge up to that full 100% which may take hours. I got a nice battery app that alerts me when it gets below 25% after that things can get crazy with phantom touches. I also have it set to give a audio alert when it reaches 100%, this way I know when it is fully charged.
I know the charge it fully (when it actually says 100% and I get a audio alert when this happens) before 50% or so has helped a lot. At one point the phantom touches started to happen at higher than 25% reaching almost 35%, last time I did a test to see when phantom touches started was 17% so it is much better. Not to the level when I bought the device, but still very useable.
I will put in the new battery sometime I am sure as it is taking longer and longer to reach the full 100% (but that is normal for lithium ion batteries.) it is certainly useable in this state and the phantom touch issue is not getting worse. I think the biggest issue was charging it until the n light went green and as the battery ages, the battery manger gets thrown off for some reason and charging to the true 100% helps recalibrate it.
Therefore I would run it for 20 minutes without letting it go to sleep, then charge until it is really full (usually leave it plugged in overnight and that should do it). Do this a few times and see if the battery is better.
Oh another thing I did. Power it off fully (hold down power button then tap shutoff) then plug it in to charge. Let the charger wake, reboot, and charge the device. This I also think helps recalibrate the system. Although I never did it when I ran it for 20 minutes then charged to full. But I am sure powering off then plugging in to charge at times made a difference as well.
I've just bought one of these batteries, hoping it'll be better than my old one.
It should be. It won't be quite as it was when it was new, as these new batteries don't have the capacity compared to the originals that B&N installed (perhaps a hour or two less runtime compared to the originals). But it will be better than a well used Nook Tablet battery that is fading fast.
I don't know if I need a new battery just yet, but I am experiencing the issue of the power being killed when plugging the Nook into the wall or USB (which means transfers over an SD card, which is a pain). I only spent $5 to get it and I can see why someone might have thought it was broken, since they probably plugged it in to charge it but it wouldn't turn on while plugged in. It does charge while off, however.
What I've noticed in my experience is that if I turn it on, I can plug it in while the Nook is on the N screen, and then it'll go to the Cynoboot screen still plugged in, but the second it goes to boot the OS it turns off.
Anyone have any ideas on why it would allow itself to be on until it tries to boot to the OS?
As many of us are aware, there is a issue that can occur with a Nook Tablet going crazy with phantom touches. Essentially it looks as if you are tapping on the screen when you are not. It usually happens very quickly, one minute ok, the next everything is getting tapped all over the screen. This can cause data loss as the device thinks you are touching the screen. For example a file you were working on may abort before saving as it thought you hit "close".
I have been bugged by this issue on and off. Some people replace batteries to fix the issue, and while that will fix it 99% of the time, there is an easier (and cheaper way).
The problem appears to be the newton loses battery calibration. There has been talk in the past of deleting the battery file via CWM or other Android app that deletes this file (or even doing it manually with a file browser app, which may need root access). This battery file is only data since the LAST time you charged the device. Not the calibration data. And this file is deleted automatically everytime you plug it in to charge.
How I fixed it
After a lot of research I found that many Android devices there often a way of recalibrating the battery charge system. The steps are:
1. If you get phantom touches hit the power button as fast as you can to put it to sleep ande prevent anything occurring you might not want (aka a file deleted you wanted to keep etc).
2. Charge the battery to full, until the green light is lit on the charge indicator located on the Nook Tablet charge cable
3. Unplug the device from the charger
4. Use the Nook Tablet for 20 minutes with a high drain app (aka watch a video)
5. Plug the Nook tablet back into the charger and wait until the light turns green again.
6. Repeat steps 2-5 several times. I would suggest 3 or 4.
7. See if you get phantom touches again when the Nook Tablet power gets low. If you do try steps 2-5 again several more times.
In my experience after a few times of this, I no longer had the phantom touches issue.
Why it happens
I am not sure all the details as to why, but one time I do know for a fact that one time it happened after I had the tablet on the charger with a full charge (I had not got around to unplugging it yet) when the power to my home failed. It came back on a few minutes later but that night when I was using the device I got phantom touches at about 50% power left. Which I never had before. After doing the above method it is working fine again even down below 15% power (which I never let it get that low normally).
I suspect that the power failure caused the charger system to recalibrate and since the battery was already at full, messed up the whole system. I also would NOT leave the Nook Tablet on a charger for long periods. If it sits at 100% for a long enough period it is possible for the battery to drop down a little and start charging again. This could start a recalibration again, bringing back the phantom touches issue.
I have not posted until now as I was not certain what fixed it before. If it was the charge to full, use for 20 minutes, then charge again method or turn it off then charge method worked. I tried several before and wasn't sure which one worked. Now I can say the put to sleep, charge, use, charge again method does work. But don't turn off the device then charge if you can help it. If the Nook tablet is powered all the way off (not sleep) doesn't seem to do a battery recalibrate. Or at least my best experience is to plug it in while in sleep mode, charge to full (green light), use for 20 minutes, and then charge again.
Sorry if this has been posted before. But a quick search didn't reveal any hits.
UPDATE:
Upon further tests, often powering off the device fully (holding power for 30 seconds or pressing for 5 and saying yes to the popup to power off), then plugging it in, letting it turn on and charge to full will fix the problem as well.