Related
Preparing...
With the phone in the on position.
Fully charge the battery with the phone on... (until the led turns green.)
Once the led turns green, unplug the charger until the led goes off.
After the led goes off, plug the charger back in. When the led turns green , power off the phone.
now.... with the phone fully powered off...
1. Unplug the charger.
2. Wait until led goes off.
3. Plug charger back in until the led turns green. When it turns green, unplug the charger again and go to step 1.
4. repeat steps 1 and 3, 10 times. This may take anywhere from 30 seconds to 30 mins per cycle. Typically only about 1 minute. though.
DO NOT DRAIN THE BATTERY. The goal is not to empty the battery and recharge like ni-cads (those have memory, these don't). These are lithiums, so we need to do the opposite...
And lets all sing the hokie pokie and shout
The cells were not charged evenly, so each cell holds different charges. So when you charge it, 1 cell may be 95% another 100 and 98 etc... so when you balance the cells, they function like they are suppose to.
this phone does not have a cell balancer built into it.
So charge, wait til its almost dead, charge again til full, then do the process w the phone off?
-------------------------------------
Sent via the XDA Tapatalk App
I'm sorry this guide doesn't really make much sense. the led won't be on if the phone is unplugged so how will I know if its on Orange or not? also is the phone on or off when I'm doing this?
Sent from my PC36100 using the XDA mobile application powered by Tapatalk
changed the instructions on top, i suck at writing.
I suppose this might explain why sometimes my phone plunges to about 90% almost immediately after taking it off the charger, but then battery decreases at a "normal" rate after that?
So were reconditioning our batteries...
I'm 99.9% sure the battery is single cell...it wouldn't make sense to have a dual cell 3.7v LiPo unless you wanted heavy discharge.
I don't see how this will make any charge other than the phone not topping the battery off...which in that case an external charger would do a much better job is so.
I tried this and my battery has been holding steady at 100% with the screen off for the last five minutes so something worked.
So is this a one time thing to re-condition the battery or will we have to do this more then once
Woah, voodoo magic here. Any proof of this working.....
SteelH said:
Woah, voodoo magic here. Any proof of this working.....
Click to expand...
Click to collapse
No proof yet. Take it or leave it.
It works for me. Test on your own. Seems pretty harmless to atleast try...
Ingesting.
I've heard of draining all the way and recharging a couple times but this is a new one lol..
tmidle8575 said:
I suppose this might explain why sometimes my phone plunges to about 90% almost immediately after taking it off the charger, but then battery decreases at a "normal" rate after that?
Click to expand...
Click to collapse
this always happens to me since getting the phone. will give this harmless voodoo a try
kthejoker20 said:
No proof yet. Take it or leave it.
It works for me. Test on your own. Seems pretty harmless to atleast try...
Click to expand...
Click to collapse
That's true, won't hurt anything. WTF I'll give it a try, maybe get proven wrong and learn something too..
I gave this a try and I must say that it is working. Before I did this, as soon as I would take my phone off the charger it would immediately drop to 96%. Now as david279 said, it will actually stay on 100% for awhile and have better standby time. Good find joker, I do see a difference.
How did you find out about the cells not being charged evenly?
WOW...this actually works. This should be posted on other forums so ppl know about it.
Akulamenuri said:
How did you find out about the cells not being charged evenly?
Click to expand...
Click to collapse
I'm a battery nut... actually, i used lithiums in model RC airplanes all the time. Balancing is a must.
Maybe someone can build an app for this, to reboot cycle on and off the power?
Is that even possible?
Now if someone would like to shoot me a awsome working froyo 2.2 rom *** joke
kthejoker20 said:
I'm a battery nut... actually, i used lithiums in model RC airplanes all the time. Balancing is a must.
Maybe someone can build an app for this, to reboot cycle on and off the power?
Is that even possible?
Now if someone would like to shoot me a awsome working froyo 2.2 rom *** joke
Click to expand...
Click to collapse
can you post this over at the other android forums so ppl know?
Hello, android developer here.
The other day my xoom drained all the way to 0% (this happened overnight while I was asleep). I noticed right away because I use the xoom as my alarm clock. I ended up sleeping in that day (doh!)
Anyways, now the darn thing simply wont turn on. I try to soft reset (vol up + power) but nothing happens. I tried plugging it in via usb thinking I could reboot it with adb, but my computer fails to see the device. So its turned off and simply will not turn on. I've even let it charge for 2 days straight (green charge light on device).
Nothing.
What the heck man?
Dumb question.... How long have you held the power button? My Xoom (maybe others?) won't turn on unless I hold the button for 2-3 seconds.
Ive gone up to 60 seconds of button pressing...when it doesnt work one tends to go to extremes lol
I can't believe this, first time I've ever had a device die like this :-/
Did you charge it before you tried to turn it back on? My Milestone tends not to turn on after it drained below zero for like ten minutes until the battery has at least some basic charge again.
Try turning on right 3~4 minutes later putting on a yiur charger
Sent from my MZ605 using XDA App
Zhenech said:
Did you charge it before you tried to turn it back on? My Milestone tends not to turn on after it drained below zero for like ten minutes until the battery has at least some basic charge again.
Click to expand...
Click to collapse
Yeah its been charged for 48 hours now, green light on power indicator as well.
It still wont boot. I tell ya its the strangest thing I've seen in a while...
did you try booting in recovery? vol down ±power
zylith said:
did you try booting in recovery? vol down ±power
Click to expand...
Click to collapse
Of course. I've tried every combo imaginable.
F this, I'm getting an ipad.
techs1200 said:
Of course. I've tried every combo imaginable.
F this, I'm getting an ipad.
Click to expand...
Click to collapse
If you really want the iPad, here's the perfect excuse.
However, if you want to save your Xoom, you might want to check out the Motorola Factory cable from Team Black Hat (Google it). If there was ever a use for this cable, your situation seems to define it. Your Xoom seems to think it's not charged (drained) or can't take a charge, but it sounds more like the former situation. The Factory/Programming cable obviously makes a different electrical connection and makes the Xoom think it's charged...something like that. Check it out.
Also, at least one person made one out of a usb cable and it saved his bacon. You'll have to do a search for his thread...it was a while back.
Good luck, what ever you do.
You need to make or buy the motorola factory cable. That will get you booting.
Sent from my Xoom using xda premium
Well I did buy an iPad2 a few days ago, but I will definitely be making one of those cables.
Wow, thanks so much! XDA never disappoints
Remove your SD card then restart... Happens to me all the time..
Sent from my GT-N7000 using XDA App
davidblaine021 said:
Remove your SD card then restart... Happens to me all the time..
Sent from my GT-N7000 using XDA App
Click to expand...
Click to collapse
Yes, I have seen this also. Pull out the SD card and the unit comes back to life.
I was wondering if people shut down their tablet at night? I always do, is anything wrong with this?
Thanks.
Sent from my Nexus 7 using Tapatalk 2
I don't, and no of course there's nothing wrong with that! Why would there be? (;
Sent from my Nexus 7 using xda app-developers app
I just let it automatically go into Airplane mode during my sleep hours, the free Battery Widget Reborn app can do this. Only about 3-4% overnight drain.
newcdn said:
I was wondering if people shut down their tablet at night? I always do, is anything wrong with this?
Click to expand...
Click to collapse
The only time I power down my N7 or smartphones is when I'm doing something to the system that needs a clean boot.
You're weird. :silly:
we have 5 android devices in our home..
NONE of them have ever been left off for longer then it takes to reboot when flashing .. My iconia can go weeks Sometimes months without being shut down or rebooted..
but you can turn it off without any issues .. NOTHING Weird about that.. Giggles
No need to turn these off. Tablets are designed to be "always ready" devices anyway.
I turn mine off at night as well.
We can form a support group to keep the "I never turn my N7 off" crowd from bullying us into changing our ways. :highfive:
newcdn said:
I was wondering if people shut down their tablet at night? I always do, is anything wrong with this?
Click to expand...
Click to collapse
Every time you shut down your Nexus 7 an innocent puppy dies!
I leave mine on over-night. In sleep mode it'll only lose a few percent battery life over-night, so it's not really an issue for me.
I want to preserve battery as much as possible, so off it goes.
chuckf1 said:
I turn mine off at night as well.
We can form a support group to keep the "I never turn my N7 off" crowd from bullying us into changing our ways. :highfive:
Click to expand...
Click to collapse
Oh my, not a tarhole in this forum. :nofive:
Sent from my Nexus 7 using xda app-developers app
I leave mine on charging overnight so it's ready to go first thing in the morning.
Sent from my Nexus 7 using Tapatalk 2
I turn mine off because I always find that a fresh boot every day makes stuff run nicer, its way more noticeable on my aging phone, but I'm sure it happens to some extent on even this beast
Sent from my HTC Vision using xda app-developers app
newcdn said:
I was wondering if people shut down their tablet at night? I always do, is anything wrong with this?
Thanks.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
I would say turning it off every night is a bad thing, it's built to be on all the time, android is built to put a device in to a deep sleep mode when you're not using it. The cpu is far better off going to sleep then being powered on and off every day..... Just make sure you turn off wifi or change the setting to "Never keep wifi on during sleep" and uncheck "Notify me when an open network is available"
I turn mine off at night
I prefer to shut down the system every now and again. A fresh boot can make the device quicker.
Its also good to, every once in a while, clear all the system caches that have been created.
Why would you think that there is anything wrong with shutting down the tablet?
I switch mine off most night but it sleeps on other nights as it only uses minimal battery while sleeping, just feel bad for leaving on when I wouldn't my laptop or other computer.
Has anyone left there tablet on the dark clock screen (sort of like an illuminated alarm clock mode) overnight, wondered what battery use was like? Was thinking about trying it to use as an alarm clock.
snipe2nite said:
I would say turning it off every night is a bad thing, it's built to be on all the time, android is built to put a device in to a deep sleep mode when you're not using it. The cpu is far better off going to sleep then being powered on and off every day..... Just make sure you turn off wifi or change the setting to "Never keep wifi on during sleep" and uncheck "Notify me when an open network is available"
Click to expand...
Click to collapse
This ^
Hardware wear is a real phenomenon. You put needless strain on the CPU and all other major components including SD and RAM by powering it on and off regularly.
I usually charge them overnight
No, leave mine on (sleeping) all night, every other night, or, thrid night, I leave it charging. Can't really see any advantage to shutting it down completely every night, the amount of power saved, would be minimul I think ....................
I turn off wifi with home screen toggle, then just shut my auto-off case. I get up in the AM and have lost 2-3%. That ain't going to effect the next time I need to charge by more than 30 minutes. I just hate waiting for the reboot. I reboot only when I get a glitch, maybe every other week.
So about a week or two ago my phone randomly shut itself off. I'm not sure exactly what happened but I just locked it and slid it in my pocket and an hour or so later I checked it and it wouldn't turn on, yet I could feel the gpu/processor getting extremely hot after a minute or so of failed attempts. Also the trackpad would flash red, which I had never noticed before. Prior to this I had been noticing my battery was draining quicker.
So when I try to charge it will charge itself for approximately a minute or so and then the orange LED will go out, again the processor/gpu gets very hot. After about an hour if I come back the phone will feel cold again as if It had been off and the phone won't turn on. I was able to buy a new battery today, because I read it could be related to a dead battery. This new battery boots to the familiar HTC mytouch4g intro (which is good, considering the old battery doesn't even power on), but then will shut off immediately after that or occasionally just get stuck at that screen. I can boot into recovery but then it says low battery voltage. I tried to do a factory reset but it just takes me back to the bootscreen again and shuts off.
I'm not sure what to do, as I've bricked a previous phone before and this doesn't really seem similar. I'm thinking about leaving the phone on charge, even though the orange LED is off with the hopes that it will charge. Anyone else have similar experience to this?
You tried different chargers?
estallings15 said:
You tried different chargers?
Click to expand...
Click to collapse
Yeah, like 4 or 5 different mini usb's.
Can you get into the bootloader?
estallings15 said:
Can you get into the bootloader?
Click to expand...
Click to collapse
Yes, by holding down on the volume and the power button right? Almost every option leads back to the phone rebooting.
greeny996 said:
Yes, by holding down on the volume and the power button right? Almost every option leads back to the phone rebooting.
Click to expand...
Click to collapse
Try installing PD15IMG.zip.
estallings15 said:
Try installing PD15IMG.zip.
Click to expand...
Click to collapse
Sorry about the long response time. Unfortunately now my phone will not turn on with either battery, so I couldn't flash the img. I think it could be possible that my phone is not actually charging the battery and both of them have died. I'm not entirely sure, I'm going to charge it overnight and hope for the best.
greeny996 said:
Sorry about the long response time. Unfortunately now my phone will not turn on with either battery, so I couldn't flash the img. I think it could be possible that my phone is not actually charging the battery and both of them have died. I'm not entirely sure, I'm going to charge it overnight and hope for the best.
Click to expand...
Click to collapse
Perhaps your USB port is broken
Sent from my GT-I9300 using xda premium
bas3balman said:
Perhaps your USB port is broken
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
I doubt it, my phone will charge off the USB for a minute or so when I plug it in.
A few weeks ago, i flashed a stock rom on my wifi nexus. I was happy with it until last week. Charging became incredibly slow - 30% over 8 hours. I threw it in my bag and wheb i got home 8 hours later, the battery was depleted completely. I couldn't turn it on. I plugged it in over night and it stayed at zero percent. I booted into recovery and reflashed my stock rom abd wiped my data. Still didn't charge. I tried going into my bootloader and hitting power off and then plugging in, but it still wouldn't charge. I can't flash my backup because it's on my card that i lost, and even if i had it, i wouldn't be able to keep it on long enough to flash it. ADB won't run on my pc and i don't know how to use the program anyway. What can i do to save my device? Please help.....
Sent from my YP-G1 using xda app-developers app
Replace battery?
veeman said:
Replace battery?
Click to expand...
Click to collapse
Not the average flasher knows how to tear apart a device - including myself. Anyways, this thing won't power up at all? You tried leaving it plugged in and booted into bootloader? If so, sounds like a hardware issue or the battery is defective.
I would be willing to bet that your battery connection came loose. Start at your USB port with a thin piece of plastic, such as a guitar pic. Work your way around the device and remove the back.
Sent from my Nexus 7 using xda app-developers app
DroidOnRoids said:
Not the average flasher knows how to tear apart a device - including myself. Anyways, this thing won't power up at all? You tried leaving it plugged in and booted into bootloader? If so, sounds like a hardware issue or the battery is defective.
Click to expand...
Click to collapse
It's not too difficult. iFixit has a good tutorial on it. http://www.ifixit.com/Guide/Installing+Nexus+7+Battery/9895/1
happyjack96 said:
A few weeks ago, i flashed a stock rom on my wifi nexus. I was happy with it until last week. Charging became incredibly slow - 30% over 8 hours. I threw it in my bag and wheb i got home 8 hours later, the battery was depleted completely. I couldn't turn it on. I plugged it in over night and it stayed at zero percent. I booted into recovery and reflashed my stock rom abd wiped my data. Still didn't charge. I tried going into my bootloader and hitting power off and then plugging in, but it still wouldn't charge. I can't flash my backup because it's on my card that i lost, and even if i had it, i wouldn't be able to keep it on long enough to flash it. ADB won't run on my pc and i don't know how to use the program anyway. What can i do to save my device? Please help.....
Sent from my YP-G1 using xda app-developers app
Click to expand...
Click to collapse
Sounds like my device... only I even can't get into the bootloader nothing... Someone suggested that the battery got so far depleted that it will nor recharge.
However seems you at least can run the bootloader... for me it just stays black ..... nothing nopes nadda
dkd2625 said:
Sounds like my device... only I even can't get into the bootloader nothing... Someone suggested that the battery got so far depleted that it will nor recharge.
However seems you at least can run the bootloader... for me it just stays black ..... nothing nopes nadda
Click to expand...
Click to collapse
Actually, there's a sticky for these issues haha
N7 Turns Off/Won't Turn Back On/Battery Status Issues - The Fixes **UPDATE**...
---------- Post added at 11:28 AM ---------- Previous post was at 11:27 AM ----------
veeman said:
It's not too difficult. iFixit has a good tutorial on it. http://www.ifixit.com/Guide/Installing+Nexus+7+Battery/9895/1
Click to expand...
Click to collapse
I heard that was a good site. I'm more scared of screwing up any hardware than doing the actually tearing apart.
I can boot for like 30 seconds and then it shuts off. I've tried the solutions in the thread link above; however, i still think it is a software issue. I've used other roms that had really slow charging, but i was able to switch to another one before the battery got depleted. So i think my best bet is to somehow get a new rom on my device somehow. ADB won't run on my computer. It just flashes a command prompt on the screen for like half a second and closes.
Sent from my YP-G1 using xda app-developers app
happyjack96 said:
I can boot for like 30 seconds and then it shuts off. I've tried the solutions in the thread link above; however, i still think it is a software issue. I've used other roms that had really slow charging, but i was able to switch to another one before the battery got depleted. So i think my best bet is to somehow get a new rom on my device somehow. ADB won't run on my computer. It just flashes a command prompt on the screen for like half a second and closes.
Sent from my YP-G1 using xda app-developers app
Click to expand...
Click to collapse
What kernel are you on? The kernel is what does the charging operations.
happyjack96 said:
I can boot for like 30 seconds and then it shuts off. I've tried the solutions in the thread link above; however, i still think it is a software issue. I've used other roms that had really slow charging, but i was able to switch to another one before the battery got depleted. So i think my best bet is to somehow get a new rom on my device somehow. ADB won't run on my computer. It just flashes a command prompt on the screen for like half a second and closes.
Click to expand...
Click to collapse
I had a similar situation in that after the battery died, I got it to the point where I could boot up, but after a screen timeout, it would be dead again. Finally, I got it booted again (while plugged into power) and immediately went to developer options and checked the Stay Awake, never sleep while charging. Keeping the screen awake kept the N7 on and it charged up.
Funny my Galaxy Nexus started doing this crap on me too after I updated the rom and kernel. The phone and battery are only 2 months old replaced in April.
Occasionally it won't take a charge. I have to **** with the battery, removing it several times. Then all of a sudden it starts charging again after 10-15 resets.
Haven't had a problem in a while. Typically hits me like every 2 weeks.
No problem on N7 though but it happens. First thing is to change your kernel and rom to something else. If still draining, flash stock and relock, unlock, relock, wipe. Boot, upgrade to 4.2.2 and test.
Sent from my Nexus 7 using XDA Premium HD app