Battery ? - myTouch 4G Q&A, Help & Troubleshooting

Everyday my battery icon turns gray and a little exclamation mark comes out. When I plug the charger in it just blinks and after a while it begins to charge. Could it be a bad battery?
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That's weIrd...have you had any battery life issues? And are you stock or rooted?
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I'm rooted. My battery I guess has been fine. It dies quick though. I think I need a new battery... In every Rom I use I end up with the same thing.
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I have seen this happen, however, its usually when my phone is plugged in. You see, I have 2 mt4g phones. I leave one plugged in, and when the battery gets low on the one I am using I will go to the one that is plugged in, and remove the battery to switch them, and while the phone is still plugged in, that grey icon will appear. I know it sounds weird but if I remove the battery from my phone while its plugged in, it stays on with that icon you are talking about. So possibly you may have a bad connection with your battery and phone.
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Might be your charger but check your battery for bumps in the center if it has a bump its your battery

My charger is fine. I'm sure its the battery. My phone dies so quick
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Related

help my phone does not turn on

hey guy's somebody here fixes phones, my phone the mytouch4g does not turn on, verified the battery, cable, charger and nothing.
what happened was that it discharged completely for more than 48 hours.
any help is greatly appreciated.
Did you leave it plugged in for awhile before trying to turn it on?
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Could you go into more detail over what you have software wise?
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Pull the battery and power cable and let it sit for a half hour.
Thank you for using dell tech support.
Seriously.. it has worked many times.
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When you plug it in does the charge led come on? If it does just leave it plugged in for 8-24 hours. Possible but doubtful that a cell or two in the battery died.

Charging percentage

Hello. Last two times I have had a very wrong percentage showing on the lock screen when charging my tablet. Yesterday my lockscreen showed 19% with the charger attached. When I unplugged it my tablet jumped to 98%. Anyone else having this behavior when charging? My tablet is updated with 1.139.05_COM_GEN1.
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I think I've seen similar behaviour once, don't remember the numbers but before unplugging the battery % was low, and after unplugging it jumped to full.
As far as I know, when you plug in the charger and screen off the machine. After charging for some times, when you turn on the screen, you need to wait a 'certain period of time' to let the tablet refresh the correct battery % & display to you.
Agree, I think everyone have the same problem. The most accurate is the light indicator of power button. Red mean charging and white mean full charged. Sometime white light indicator but logon screen show charging with percentage. It's because it haven't update yet.
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Nice that I'm not alone. I will wait and see if it changes after coming updates.
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Same problem here!
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Is there a fix for this....this very annoying...!
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Batery

If I left mah phone charging alln8 ....will it hv bad effects on my phone
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no, when it is charged 100%, it stops charging.
Frequently charging overnight will decrease the battery life . It will be long term effect.
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Yes, it will. Charge only when the battery is low, and remove from the charger as soon as poss after charging is done.
Hmmm.. Iam charging always by leaving the phone connected to the charger for the night and I think it doesnt make any difference. My battery holds about 2 days, with wifi on, 1hour of talking and using communicator, so it isnt so bad.
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Phone will not charge.

Friend has a my touch and won't charge. Any ideas?
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I'm going to go with "something's broken"
Could you give more details? Does the battery not hold a charge? Does the LED indicate that it's trying to charge? Does the phone power on when plugged in? Does it power on when unplugged? Does a different battery charge okay?
Yea I'm guess its a fried emmc. Makes no attempt to charge. No led. Even plugged in can't start or get to boot loaders so shell have to get a replacement.
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If the phone won't power on at all when plugged in AND THE BATTERY IS INSERTED (That's important. It won't power on when plugged in with the battery out no matter how well it works.) then the phone is pretty unsaveable.
does the computer see it when you plug it in?
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OK so we got it working with a charged battery but doesn't respond to USB at all
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If it works with a charged battery, and you see no response to USB - then the problem is most likely physical, one of the USB VBUS (power) contacts is disconnected/broken.
avengethis1 said:
Yea I'm guess its a fried emmc. Makes no attempt to charge. No led. Even plugged in can't start or get to boot loaders so shell have to get a replacement.
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i dont think a fried emmc would stop it from charging , my G2 had a bad emmc and it charged perfect , like they said its deffinetly a physical problem , my mytouch 4g has a physical problem too , mine charges but will not mount , and if it does mount it connects and disconnects over and over every 5 seconds
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phone dies when playing games

randomly when I play little empire, my phone will suddenly die.then when I turn it on it says I have no battery left. sometimes if I reboot it'll say I have around 20 to 30 percent. this happens even after I tried battery calibration (the app and in cwm) and even if I fully charge my phone. I'm on tdjs Kang with stock kernel on darkside gov
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cirjeffrey said:
randomly when I play little empire, my phone will suddenly die.then when I turn it on it says I have no battery left. sometimes if I reboot it'll say I have around 20 to 30 percent. this happens even after I tried battery calibration (the app and in cwm) and even if I fully charge my phone. I'm on tdjs Kang with stock kernel on darkside gov
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just wondering but how long have you had the battery? it might be defective...
or, maybe it was a bad game download..?
birthday present since March last year. I was starting to assume the phone was the problem cuz I've been having other issues as well
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cirjeffrey said:
birthday present since March last year. I was starting to assume the phone was the problem cuz I've been having other issues as well
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hm... might be time to get a replacement? :/
perhaps ok well thanks for helping anyways
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I have to comment cause im having the same problems. But instead playing games, mine will just die. It happen now btw, it was on charge all night woke up and seen that there was no charge on the battery, i unpluged it and now it wont charge and my orange led just flashes when i plug it into a charger. In order to get out of it last time i used a walmart charger. Took out the battery pluged it in, took it out over and over and different ways. I was about to bash it. Well then out of the blue it started to charge again and turn on with absolutly no charge but did show it started to charge again. It only happens with cm7, cause thats only what i use the most. So i dunno whats the deal is im tempted to take it to tmobile store and see if they can give me a replacement battery and to see if its the battery itself. So hell i dont know what the heck its doing but i need it for my job cause im a truck driver and i depend on it to get loads and what not. It doesnt power up,doesnt boot into recovery, but does turn on when i hold the volume button and power button in the vibrate unknown mode and orange led flashes. I know i didnt brick it because ive been in this situation before and works after i did the special pattern to get it working again. The pattern is unknown cause it all depends so dont ask it was a euthastic comment. so hell buddy me and you are in the same boat until then
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Edit** ok i managed to get it turned on again, pulled battery,sim,sdcard. Put it on charge then waited a few minutes, then put battery in it and then plugged it back in. It worked, im going to try to post a screenshot of the battery usage. I got to let the battery charge up some, so i can put everything back in it. I dunno it may be related to the emmc chip.
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