Develop Bugs

problem can't charge battery dead

When I tried to turn the device on, it only displays the version information before rebooting itself again and again ... and again. I finally put it in the cradle and it booted all the way up to the setup screen and was running properly (sans all the data and the applications I've installed, of course). The backup battery was down to 20% at the time.
Now, the battery screen shows Main battery at 0%, AC Only, and the backup battery at 100%. It doesn't show any charging activity to the main battery.
The battery on it right now was fully charged through the aux battery charger, and the backup battery is also fully charged. I've tried another fully charged battery with no luck.
I slapped in a freshly charged battery last night before going to bed. Everything was working just fine then. The phone was sitting inside a leather case all night and never moved.
PH20B1 B 1 WWE E XGULB001 1.33.10 1 0 1.33.110 1.06.02 06.02
I'm running the original Cingular ROM unlocked for use with a T-Mobile SIM.
Thanks for any help.

Strange Battery issue

After having gone through the posts regarding battery being drained very fast, went out and got a new one. It worked like a dream for about a month. Used to last a couple of days before requiring a recharge (it would go down to 20% remaining).
I usually leave the battery to charge overnight, have been doing that since the beginning. Well two weeks back, I find that my JasJar shows Green light but it would not turn on. A soft reset resolved the issue. But now everytime the battery goes into full charge (after the orange color LED turns Green) either of the 2 happen
1. The device resets itself. When switched on the battery charge shows less than 100%.
2. The device will not turn on until a soft reset. When switched on the battery charge shows 100%.
I have used WM6 from Laurentius, KDSKamal and the T-Mobile WM5. All ROM's give me the same result.
I tried using my old battery ( to make sure that my device charging was not faulty)and that works fine (except for the fast drain problem).
Anyone with any ideas as to what the problem could be?

gmathews said:
After having gone through the posts regarding battery being drained very fast, went out and got a new one. It worked like a dream for about a month. Used to last a couple of days before requiring a recharge (it would go down to 20% remaining).
I usually leave the battery to charge overnight, have been doing that since the beginning. Well two weeks back, I find that my JasJar shows Green light but it would not turn on. A soft reset resolved the issue. But now everytime the battery goes into full charge (after the orange color LED turns Green) either of the 2 happen
1. The device resets itself. When switched on the battery charge shows less than 100%.
2. The device will not turn on until a soft reset. When switched on the battery charge shows 100%.
I have used WM6 from Laurentius, KDSKamal and the T-Mobile WM5. All ROM's give me the same result.
I tried using my old battery ( to make sure that my device charging was not faulty)and that works fine (except for the fast drain problem).
Anyone with any ideas as to what the problem could be?
Click to expand...
Click to collapse
seems like your new battery wore out (was not able to take the prolonged charging, an hour of charging will already give you almost 100%)... you said it yourself that your old battery works without the same problem
if you have just bought it for a month... there should be a warranty for this.... have it replaced immediately...

Battery Charged but device doesn't power :'(

Hey guys,
i have a Vodafone VPx now and all has been great, however yesterday it reckoned the battery charged from 8% to 100% in 10 mins, i left it on the cradle over night, and now the device doesn't show any signs of life apart from a red charging indicator. I took the battery out and metered it, shows up at 3.72 Volts, so battery holds charge. What can i do to get the device to power again?
T.I.A
RJ

I'm not an expert but I would suggest to leave the device in the cradle and try to boot it when charging it. In this way you can decide whether it's a battery or some other malfunction. Maybe the internal backup battery needs to be replaced, but I don't know if it would let the battery indicator LED to blink...
I replaced my battery because it showed that it's fully charged but when uncradled the device won't connect to bluetooth devices or regularly drops the connection, it even resets itself although the indicator displaying full charge. Now everything is OK. You may consider buying a new battery if it's older than 2-3 years, but first test if that causes this behavior.

hi,
actually i'm experiencing the same thing..
my BA if used to connect to wifi, not more than 5 minutes it will hang with the screen goes blank.. so is it because of my internal back up battery that needs to be replaced or my main battery that need to be replaced?
FYI, backdays before, i got notification that my internal battery runs dry..

Ive just bought a BA off ebay and it came with 2 batts, but 1 of the batts keeps causing the BA to turn off evern if the batt is fully charged.. odd hey?

speedy2009, I think that one was the original battery bundled because it has no value any more so the seller sent it with the machine, all in all it's not a bad device for it's years.
jilaxzone, don't know how to test this, because sometimes the device gives false alarms, I would take it to a PDA shop and let them replace the internal battery as this is cheaper than the main battery.

Also Ive figgered out that if the backup battery is low, it gets charged up from the main battery.
Should everything be lost from the memory once the backup battery runs out? Cos I did try this morning, taking the main batt out and left the phone for about a hr. When I put the batt in, even tho windows said the backup batt was completely empty, it still had all my info in windows??

Hi, the backup battery is responsible for the time and date. The other functions of it are unknown to me. Fortunately the ROM storage is not lost when the battery drains completely

misi2096 said:
Hi, the backup battery is responsible for the time and date. The other functions of it are unknown to me. Fortunately the ROM storage is not lost when the battery drains completely
Click to expand...
Click to collapse
If thats the case theres no real reason for a backup batt cos it only takes a few secs to alter time and date, like on a normal mobile phone.

Battery percentage issue [GT-I9195]

Hello,
I am running CM13 on my S4 mini. Everything works almost flawlessly. Except one recent thing, which doesn't let me sleep at night.
Recently i purchased a battery replacement for my device. The stock battery's capacity was 1900 mAh, which was not meeting my personal requirements. I decided to purchase an extended battery pack with 3800 mAh capacity, (signed as a replacement battery for this particular model) with a special casing to fit the new size. That's where it gets interesting.
First thing i did, i put the new battery inside and switched the device on. The percentage was about 24%, so i plugged in my AC charger (the same that came with the mobile), and left it alone to charge all the way up to 100%. Everything went ok, no extensive heat, just stable charging.
Afterwards i unplugged my phone from the external power supply, and I went outside. The battery dropped to 0% after a few hours. I calculated the power usage and compared with the battery's capacity. They didn't match at all. While the device was off, i plugged in my DC car charger. And as soon as the battery indicator showed up, it said 44%. I unplugged the charger and booted the system. Now the system power indicator also showed 44%, even though it was 0% 2 minutes before.
So i came to a conclusion - the OS is doing something wrong. Question is - what? I started troubleshooting. I checked the system and device status. Everything normal, except one thing - the phone still shows that it's running on a 1900 mAh battery. I wiped cache and dalvik cache partitions. Problem didn't go away. I deleted the batterystats file, even though i know it doesn't matter. The problem still persisted.
But the only thing that showed proper values, was the indicator running while charging without the OS running. So i reversed the situation. I let it discharge to 0% in the system and made sure it's 0% before system boot also. Then i let it charge with the system off. It reached 100%. I unplugged it and booted the android. It showed 66%. I repeated those steps until both the pre-boot and post-boot indicators showed equal values. But unfortunately it didn't fix the issue.
Can anybody help me find some kind of a solution? There has to be a way to get it working, i just don't know where to look further.
Thank you in advance for your advice.

Phone shuts down with 100% battery

Even after charging my One M8 all night when I unplug the charger, it will shut down within 10 seconds unless I connect my external battery pack in time. When I reconnect a charging supply (mains or battery pack) it will show the green battery charging image and usually around 95% charged. So it seems to recognise the charge, but the phone doesn't think it's enough to keep operating so shuts down.
Background:
I was on Sense but I flashed to GPE using the RUU.
In the last couple of months I'd had my battery pack connected a lot (Pokemon Go!) as the phone was shutting down at 20%, so I was keeping it connected to the battery pack a lot.
Is there anything I can do 'fix' the battery or would I be better off trying to install a new one?
Thanks

HTC M8 Shutting Down With 100% Battery SHowing
My phone does exactly the same thing. All the 'fixes' listed to date don't make a difference. I've noted a factory reset doesn't do it either. Has anyone found a reliable fix or is it time to trash this phone?