Develop Bugs

[Q] Phone won't turn on

I was using my phone as a wifi router for a long period of time, for about an hour, while it was on external power. The phone reset itself a few times and then turned off. Now if I press the power button it begins to power on but turns off after a few seconds. Any suggestions on how to fix it? I'm not sure if it matters, but I have an energy rom installed.
Thanks

Try this
remove / reinstall the battery?
my friends did the same thing more or less and that fixed his
he said it reset the battery image??

I tried removing the battery and putting it back in, but no luck. I also let the phone sit with the battery removed for an hour but that didn't work either. Any other suggestions?
Thanks

avacedani said:
I tried removing the battery and putting it back in, but no luck. I also let the phone sit with the battery removed for an hour but that didn't work either. Any other suggestions?
Thanks
Click to expand...
Click to collapse
Does the phone charge? Maybe the battery got depleted. Try charging overnight. If that doesn't work, replace the battery.

The phone does charge. I'll try charging overnight tonight, hopefully that works.

Charging while phone is off?

Hi,
Yesterday I came across strange issue. In WinMo, when the phone was off it was charging normally untill the battery was fully charged...
After Flashing Android to NAND I can not do that. It seems to be charging (orange LED is on) for about 10 sec. and than the Display blinks with white light and the phone dies completely.
The only thing you can do after that is to pull out the battery and put it back. Than you can turn the phone on and charge as usually.
What is that issues origin? Battery driver? Or another thingie in Firmware? It seems to be quite strange, that it lights the display even with the phone being off...

a.s.j said:
Hi,
Yesterday I came across strange issue. In WinMo, when the phone was off it was charging normally untill the battery was fully charged...
After Flashing Android to NAND I can not do that. It seems to be charging (orange LED is on) for about 10 sec. and than the Display blinks with white light and the phone dies completely.
The only thing you can do after that is to pull out the battery and put it back. Than you can turn the phone on and charge as usually.
What is that issues origin? Battery driver? Or another thingie in Firmware? It seems to be quite strange, that it lights the display even with the phone being off...
Click to expand...
Click to collapse
i have this problem too

a.s.j said:
Hi,
Yesterday I came across strange issue. In WinMo, when the phone was off it was charging normally untill the battery was fully charged...
After Flashing Android to NAND I can not do that. It seems to be charging (orange LED is on) for about 10 sec. and than the Display blinks with white light and the phone dies completely.
The only thing you can do after that is to pull out the battery and put it back. Than you can turn the phone on and charge as usually.
What is that issues origin? Battery driver? Or another thingie in Firmware? It seems to be quite strange, that it lights the display even with the phone being off...
Click to expand...
Click to collapse
My Kaiser does the exact same thing, and what it is, is for some reason the phone is booting back up. I came across this the other day, and my phone did the exact same thing described, and not sure what I did, but I managed to turn on the screen and Android was booted up to the lock screen.
It's even done it when I plug the phone into A/C power without the battery even connected.

so here is why it happens, basicly what would happen is in WinMo when the phone would turn off and boot into a charge loop and it would charge and shut off when finished our kernel doesnt have this built into it so it just boots like normal when power is applied

thoughtlesskyle said:
so here is why it happens, basicly what would happen is in WinMo when the phone would turn off and boot into a charge loop and it would charge and shut off when finished our kernel doesnt have this built into it so it just boots like normal when power is applied
Click to expand...
Click to collapse
yup... happens to all of us, its not a big deal... there are a lot of worse problems devs are trying to solve... maybe whn they reach a point where the kernel is more stable they should pay attention to the details like this (and the camera driver, camcoder... etc)

thoughtlesskyle said:
so here is why it happens, basicly what would happen is in WinMo when the phone would turn off and boot into a charge loop and it would charge and shut off when finished our kernel doesnt have this built into it so it just boots like normal when power is applied
Click to expand...
Click to collapse
Well that answers my question... Yah knew it was something inside the kernel, just didn't know if it was a bug, or something that wasn't implemented yet.

Of course this is low priority task but I just wanted to have that confirmed to know, that my oldie holdie is not broken or what

Quick question:
How old is your kaiser and/or battery ?

About 5 years with original battery
Sent from my Full Android on Kaiser using XDA App

It used to be that if Linux NBH was flashed, the phone wouldn't charge at all when off. Then somebody (dzo I believe) added code to the kernel so that the phone turns on when it is plugged in, so that it will charge. That used to work, with a full complete boot. Now, as you say, the phone tries to wake up but doesn't really make it. Maybe we should look into that, we should be able to fix that, maybe by looking carefully at the git logs for the past six months or so.
There are bigger problems, like data reliability, but if somebody wants a problem in the kernel that they can study and perhaps fix, this is a good one to start with.

To correctly charge the battery system need to be on so i can do this:
start kernel
in initrd:
if it found the power connected then the phone wait for power button (trying the sleep mode)
else
start the system
i need some testing to do it.
Windows do quite the same thing.

l1q1d said:
To correctly charge the battery system need to be on so i can do this:
start kernel
in initrd:
if it found the power connected then the phone wait for power button (trying the sleep mode)
else
start the system
i need some testing to do it.
Windows do quite the same thing.
Click to expand...
Click to collapse
If only the real code was as easy as the pseudocode =)

[Q] >:( phone shuts off every minute

okay so for the past weeks, i have been running the latest cyanogen rom nightly and i read about the script by puremotive that improves you battery life so i flashed it, everything was working wonderfully, noticed increased battery life but yesterday when i woke up my phone was off some how, so i turned it on and before i could even open an application it turns off. i mean like just turns off no bootloops whatsoever. When it turns off, if i have like full battery charge its drops down to 15%
so i was wondering is it my battery thats the problem or the phone?
and yes ive tried wiping everything and even flashed a different rom.

Danielombasa612 said:
okay so for the past weeks, i have been running the latest cyanogen rom nightly and i read about the script by puremotive that improves you battery life so i flashed it, everything was working wonderfully, noticed increased battery life but yesterday when i woke up my phone was off some how, so i turned it on and before i could even open an application it turns off. i mean like just turns off no bootloops whatsoever. When it turns off, if i have like full battery charge its drops down to 15%
so i was wondering is it my battery thats the problem or the phone?
and yes ive tried wiping everything and even flashed a different rom.
Click to expand...
Click to collapse
Probably the battery if wiping battery stats and flashing new roms dosent help.

cmlusco said:
Probably the battery if wiping battery stats and flashing new roms dosent help.
Click to expand...
Click to collapse
Ehhh it seems like its the battery, cause my phone only works when plugged into a charger

Question about the new update

Hello guys I am a owner of acer a100 ,but once I'have bricked it so I returned in the shop and they recovered for me .
So then I updated to ICS , but now my iconia is turning off by itself and I can't prevent it and when I try to apply the new update I get android icon with in big red color

Are you trying to apply the update manually (update.zip) or OTA? Are you able to boot into bootloader mode? Have you tried resetting the tab (via pinhole)?

Also, how is it powering down by itself? Like random reboot, or gives the Powering down message? If its the powering down message, its a power issue, and you may as well return that one as well, it will only get worse to the point of not turning on at all.

pio_masaki said:
Also, how is it powering down by itself? Like random reboot, or gives the Powering down message? If its the powering down message, its a power issue, and you may as well return that one as well, it will only get worse to the point of not turning on at all.
Click to expand...
Click to collapse
Well when the tablet is locked somehow the battery drain so fast that the tablet turn off , because the battery is empty.
But now when I am trying to remember what I actualy did its kinda hard :Д
I am not sure that I installed the ICS from the updater maybe I puted the ICS Leak from in here.
Will the tablet restore to honeycomb if I hold the button in the hole.(reset)

mitko29 said:
Well when the tablet is locked somehow the battery drain so fast that the tablet turn off , because the battery is empty.
But now when I am trying to remember what I actualy did its kinda hard :Д
I am not sure that I installed the ICS from the updater maybe I puted the ICS Leak from in here.
Will the tablet restore to honeycomb if I hold the button in the hole.(reset)
Click to expand...
Click to collapse
No, Honeycomb will not be restored (unless you are running it).

mitko29 said:
Well when the tablet is locked somehow the battery drain so fast that the tablet turn off , because the battery is empty.
But now when I am trying to remember what I actualy did its kinda hard :Д
I am not sure that I installed the ICS from the updater maybe I puted the ICS Leak from in here.
Will the tablet restore to honeycomb if I hold the button in the hole.(reset)
Click to expand...
Click to collapse
OK one more question, how long is is locked before the battery is drained? I've seen my own tab drop 4% an hour while sleeping before. My phone has drained 17% an hour sleeping before. There's always a possible software issue causing it, that's why I'm asking how fast its draining. Make a note of power left, put it to sleep then check back in 30-60 minutes and see how much its dropped.
Tapatalked from my Galaxy S II.

pio_masaki said:
OK one more question, how long is is locked before the battery is drained? I've seen my own tab drop 4% an hour while sleeping before. My phone has drained 17% an hour sleeping before. There's always a possible software issue causing it, that's why I'm asking how fast its draining. Make a note of power left, put it to sleep then check back in 30-60 minutes and see how much its dropped.
Tapatalked from my Galaxy S II.
Click to expand...
Click to collapse
sometomes the tablet just turn off while slepping , and the battery is still at 50%

My G2 will shut itself off - any suggestions?

I'm looking for any ideas for the problem I'm having on my G2. I'm afraid it's a hardware problem and not much I can do about it.
I started having problems after upgrading from CM 7.1 to 7.2, but I don't think it was related to the upgrade. I started having battery draining problems, the phone took forever to get fully charged, and car mode would automatically start sometimes when plugging up or unplugging the charger. I cleaned the usb port with alcohol (with battery removed), let dry, and restarted. Now I don't have the car mode problem and the battery problem is somewhat better.
My problem now is that the phone will just die when I'm using it. Usually when I'm using the browser. I'll be scrolling on a page and the phone will just turn itself off. Like the battery died. I can turn the phone back on and it will start up, get all the way started back up, but while it is still loading the home screen widgets, it will go off again. I can repeat this several times. The only way to recover is to plug in the charger. I don't have to hit the power button again, just plugging in the charger will start up recovery mode automatically, I'll choose reboot and the phone will start normally then and stay on.
The phone never dies when I'm not using it. I'll carry it all day, making phone calls on and off, and it'll stay on with no problem. Mostly, I only have the problem when using the browser. Also had the problem while using my newsreader. Once during playing a game. But if I start up browsing the internet, it doesn't take long before it will turn itself off. A matter of a couple of minutes. I don't have the problem with reading emails with K9. Don't have a problem in downloading from the internet such as podcasts. Don't have a problem in sending text messages. Don't recall it shutting down while using the Facebook app. After putting up with this for a week, some troubleshooting and observations.
I never have this problem if the charger is plugged in. Only when it is running fully from the battery.
I've tried swapping to a different battery.
Turned down the overclocking with no difference.
I've changed to other recoveries, CM 7.2, CM 7.1, a CM 7.1 that I was running in May. No difference.
I've swapped memory cards.
I've reset battery stats.
No difference if running on wifi or just data.
Clearing caches made no difference.
So, I start thinking it must be a hardware problem, but then why does it only crop up when internet browsing. Must be power related since plugging in the charger makes it go away, but why does it not have a problem with using the phone in other ways?
Any suggestions on what I could try?

You could try to see if there is too much voltage drop when you start something power-hungry. Use a battery voltage logger and post the results. Start logging, let the phoneidle for a minute and then start browsing. Even if the phone shut off, the log should still be there after rebooting.

Thanks for the idea. I can't locate a logger that looks like it would work. It would have to capture a quick drop in voltage that is momentary. This problem happens even on a full battery and when the phone come back on (either momentarily or after a recovery reboot) the battery level is unchanged.

You might try as well an other way: first idle, then gradually step up to a more power hungry app to see when the problem actually happens. I have no other ideas...

Make sure that you dont have any contact with the battery and the door.
Normally batteries are covered with an aluminum wrap, and can cause short-cuts with the phone itself.
I searched it for a while with the galilio batteries.
You can try to put some saranhwrap around the battery.

I have the same problem with two different batteries. But I'm ready to try that too.

Battery graph
So here's a graph of my battery status. Long time to charge to 100%. Discharges pretty rapidly. Each downturn ends in the phone turning itself off. Notice that at 7:30 today, it turned itself off, I did a recovery reboot, then noticed it wasn't charging very well (green line turns to blue but doesn't increase), then I did a manual reboot and when the phone restarted, it showed the battery was at 100% charge (from about 60% before the reboot).
What do you think - hardware or software?

oVeRdOsE. said:
Make sure that you dont have any contact with the battery and the door.
Normally batteries are covered with an aluminum wrap, and can cause short-cuts with the phone itself.
I searched it for a while with the galilio batteries.
You can try to put some saranhwrap around the battery.
Click to expand...
Click to collapse
Well, I just took the cover off for awhile and tried it. Played crosswords (Shortz) for awhile with no problems. Started my newsreader (Newsrob) and it shut itself off in about 15 seconds. So, no short to the battery cover.

Same thing is happening to me. I use poweramp or the browser and the G2 just shuts off. Then I restart it and it tells me that the battery is low. Once I shut it down and reboot in recovery and wipe the battery cache it's back to it's normal battery level. I disabled data and set my phone for 2G networks only and it didn't shut off after. I'm assuming this is a wireless issue? I'm running mimicry 1.3.0 on my G2.

Had the same problem. Swapped out batteries and problem gone.
Sent from my HTC Vision using xda app-developers app

Did you swap the battery and immediately have no further problems? I tried swapping my battery already and still have the same problem.