So, here's the deal. I have a Motorola Backflip, it has been rooted and now runs 2.1 instead of Android 1.5. A few weeks ago, I woke up after charging my phone all night and it was very hot. It wouldn't turn on, I panicked, then later I tried and it was fine. Now, it happened again this morning when I woke up. It was very hot, I waited for it to cool off, and tried to charge it again, because it wasn't charging all night. When I plug it in, it recognizes it's plugged in with a little vibration, does the white screen with the Motorola M for a bit, then shows the "0%" screen with a charging battery. Then, it vibrates to show it's plugged in, shows the white screen with the Motorola M for a bit, then once again shows the "0%" screen with a charging battery. It keeps doing that, and won't charge. I obviously can't turn the phone on since it will not charge, and the battery is dead. I am using a normal wall charger, but I will try charging it through the computer to see if that makes any difference. Any suggestions? Is my phone okay, or should I give up?
U need a new battery
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Just woke up to the very same thing with my backflip. It may have something to do with the amount of current going through the connection. I had mine plugged into the back accessory port on my old Blackberry Bold dock. The one that has a spot for the bold upfront, spot for a bluetooth headset, extra battery charger and an extra USB port on the back(I use it and my old Bold as a bedside alarmclock/internet radio now .) I had been playing a bit of leaf green on gameboid last night with it plugged in and woke up to a feircly hot Backflip that would not power on. it was on until I picked it up then turned off. i hit the power button and it just kept cycling through the moto M logo and then returning to the 0% battery screen and then off. i disconnected it from there, plugged it into my laptop where i could only get the micro-usb led to blink... it would not power on at all. I then got my Blackberry Torch's little usb wall adapter and tried that out and it worked like a charm. phone loaded up the way it was intended to.
Now as far as amperages go, for the dock i am unsure, it states on the wall plug it has an output of 1600ma, but for up to 4 devices... i am unsure as to how much power is restricted to each port if any. I only had the bold and backflip connected to it. My laptop has powered USB ports which deliver 550ma's each which is typical and in my experience often not enough to start a device from 0%. My BB wall adapter is 750ma's which has to be my personal preference. I actually refuse to plug my Torch into a USB port until i know it does not supply over 750ma's for fear of ruining my battery like had before on other phones not designed to use a 1amp charger. I am assuming my Backflip has the same idea.
Does or is the TF suppose to change while plugged into the PC?
It does not while it is ON. It trickle charges when the screen is OFF. However, it is reaaaaallly slooooow. Even with a regular 5V USB charger, it takes more than a day to charge. It seems to only like the 5-15V ASUS charger.
I charge mine using just usb connection to pc, it takes a long time and I have wireless set to power off when the screen is off.
Does the battery indicatorshoe it's charging?
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Like it was mentioned earlier, it does charge. But only while the screen is off, if you turn the screen on to check something (like whether it's charging) it will stop charging.
Can it be plugged into a USB 3.0 port on a computer and if so, will this charge it as fast as the wall charger?
nsstrunks said:
Like it was mentioned earlier, it does charge. But only while the screen is off, if you turn the screen on to check something (like whether it's charging) it will stop charging.
Click to expand...
Click to collapse
Right. It's like trying to see if the refrigerator light turns off when you close the door.
Why does the battery take longer to charge while the phone is off?? the funny thing is i think it lasts longer when i charge while the phone is off, am i being paranoic?
I have noticed that it charges slower when turned off, but personally i see more battery life when i charge the phone when it is on.
Not in my case...It appears to be faster....
Charge via USB and it is slow.
Charge via wall outlet is extremely quick.
The phone trickle charges during the last 10 percent to ensure a real full charge. But it shouldn't matter if the phone is on or off.
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Hi there!
I have a B80 Tablet which was working properly as it should, until on Wednesday I left it completely dry (both dock and tablet 0%) and now they won't charge at all!
The wall charger and cable were tested with my friends TF101 - working fine, no problems at all.
Also when I turned on in the evening it showed the Battery (with red status) icon which means it needs to be charged - I put it on the wal charger for 3 hours and the dock was not charged at all, and the tablet got 3% juice and that was it.
Neither the dock or tablet is charging - tried them separately
Also tried cold-boot, the "freezer trick", the USB trick - no success
Any suggestions? Experience?
Thanks!
P.S: 3.2.1 HC, KRAKD ROM, default kernel, no OC
Mine is doing something similar. Tablet will charge but keyboard won't. If I leave tablet connected to keyboard I will draining completely in less then 4 hours. I have the OG Transformer 101.
ICS (revolver tf101 4.0.0 RC1 with stock kernel)
Sent from my Galaxy Nexus using Tapatalk 2
Now I managed to get the tablet to 9% Via USB Port -.-
Also tested my friend's charger which works as well - but mine does not want to charge...
Ive got exactly the same problem with one exception, i am not able to charge it at all!! After all night connected to charget still 0% battery, in dual batter widget there is unknown battery error. Charger is ok. Dock is fully chargedand even from dock my tablet wont charge.
What is more i am not able to flash stock rom with nvflash, it disconnects after sending bootloader.
Do you have any ideas what to do now?
Sent from my Transformer TF101 using Tapatalk 2
I sent email to Asus on Friday and waiting for response.
Sent from my Galaxy Nexus using Tapatalk 2
Just a few questions:
I plugged the dock on the wall charger without the tablet - it shows no life signs. Isn't the LED should be blinking? Also left the tablet on the wall charger for 2 hours and the battery was charged a bit (10%) - so it can't be the charger.
Also since it got a little charge - it can be hardware error with the battery. A loose cable?
Also managed to go back to stock ROM and no help - can it be that the cable has issues?
Battery voltage shows 7V BTW currently
Have you guys try using PC USB port alone and charge the tablet for like a day?
Put the tablet OFF and let it charge thru the day(12hrs) and see what happen.
Next, dock the tablet to it's keyboard and fire up. Go to settings - Developer options - USB debugging(uncheck).
Go to Settings - Asus customised setting - MobileDock Battery mode(uncheck).
Still docking, now restart the TF101.
And yes, the dock would blink when charging take place until it turn green when full charged..
Just tablet wouldn't charge
I have a similar same issue. It was working fine and then when i went to pick it up to use it wouldn't start up. So I followed all the tips i can find so far but no dice. Here are the rest of the info:
The unit will not turn on if I don't have the power cable plugged in.
1) When the cable is pulled out, the unit turns off and will not turn back on
2) When the cable is plugged in, it turns on and work just fine
3) When I put it on the keyboard dock, it turns on and work just fine
4) When I pull it out of the keyboard, it turns off and will not turn back on
5) I have soft reset, hard reset and factory reset (all with power plugged in) because nothing will happen without the power plugged in
6) Battery status shows 86% but not charging:
--When plugged into the wall
7) Battery status shows 86% but not charging while in the dock.
--The dock battery shows that it is charging and the light on the dock is green
I have tested and knows the charger works and the dock battery works.
The main unit battery will not deplete and will not charge.
What do I need to do?
bghlim said:
I have a similar same issue. It was working fine and then when i went to pick it up to use it wouldn't start up. So I followed all the tips i can find so far but no dice. Here are the rest of the info:
The unit will not turn on if I don't have the power cable plugged in.
1) When the cable is pulled out, the unit turns off and will not turn back on
2) When the cable is plugged in, it turns on and work just fine
3) When I put it on the keyboard dock, it turns on and work just fine
4) When I pull it out of the keyboard, it turns off and will not turn back on
5) I have soft reset, hard reset and factory reset (all with power plugged in) because nothing will happen without the power plugged in
6) Battery status shows 86% but not charging:
--When plugged into the wall
7) Battery status shows 86% but not charging while in the dock.
--The dock battery shows that it is charging and the light on the dock is green
I have tested and knows the charger works and the dock battery works.
The main unit battery will not deplete and will not charge.
What do I need to do?
Click to expand...
Click to collapse
Ive done exactly the same tests, and behaviour of my tablet is almost the same (battery 0%)
I am waiting for a responce from Asus.
Honestly speaking i am glad to hear that someone else has the same problems and the same symptoms. It means that the Asus hardware or ICS update messed something up.
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I hope ASUS says something, becuase this is driving me crazy - out of the blue suddenly not working.
I charged the tablet via USB overnight - 46% right now, but the dock does not want to go up from 0%
And it looks like it charges via the wall charger as well, but it is the same as via USB - so the "real" charging is not triggered.
Fixed!!!
Looks like the wall charger charged with 5V, but not with 15V properly - which is utterly strange.
Waiting for a new replacement charger - with 12V 1A should be working.
BTW, if you want to do this, there are already threads.
You need a Molex Female and a USB Female cable - wire it like on the picture.
Yellow cable from Molex to USB red and the black cable from Molex (next to the red) to USB Black - that's it.
Great that it works for you but I don't think that is my problem though. I can't get it to trickle charge from the USB even. And the battery widget said "battery health = unknown error".
I guess I will still wait...
bghlim said:
Great that it works for you but I don't think that is my problem though. I can't get it to trickle charge from the USB even. And the battery widget said "battery health = unknown error".
I guess I will still wait...
Click to expand...
Click to collapse
+ 1
My charger is 100% good (tested on my friends tablet). Besides it should charge from dock but it doesnt!
Still waiting for asus responce.
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GOOD NEWS! Tired this and keyboard showed 99%. I will need to run power down and try to charge later to see if fixed completely.
Now for what I did.
Took the base AC charger from my Galaxy Nexus, any base should work, then used the standard USB cable that came with the Transformer and plugged it into the AC charger and the keyboard dock without tablet attached. Plugged into the wall and got nothing. No lights or anything. Then switched back to the AC charger base that came with the Transformer. Plugged into wall and I got a green light on the keyboard dock so I then docked the tablet. The dual battery widget showed 17% tablet and 99% dock. At last check it was 27% tablet and 99% dock.
Hope this is a fix.
Sent from my Galaxy Nexus using Tapatalk 2
davebugyi said:
Fixed!!!
Looks like the wall charger charged with 5V, but not with 15V properly - which is utterly strange.
Waiting for a new replacement charger - with 12V 1A should be working.
BTW, if you want to do this, there are already threads.
You need a Molex Female and a USB Female cable - wire it like on the picture.
Yellow cable from Molex to USB red and the black cable from Molex (next to the red) to USB Black - that's it.
Click to expand...
Click to collapse
Hi davebugyi, so if I understand correctly, the solution is to use a 12V 1A USB charger to revive the battery of a dead dock? I have the issue as per my post here
Needless to say the dead dock battery is driving me mad!! Even opened up the dock and flipped the battery switch inside!!
jthompson0019 said:
GOOD NEWS! Tired this and keyboard showed 99%. I will need to run power down and try to charge later to see if fixed completely.
Now for what I did.
Took the base AC charger from my Galaxy Nexus, any base should work, then used the standard USB cable that came with the Transformer and plugged it into the AC charger and the keyboard dock without tablet attached. Plugged into the wall and got nothing. No lights or anything. Then switched back to the AC charger base that came with the Transformer. Plugged into wall and I got a green light on the keyboard dock so I then docked the tablet. The dual battery widget showed 17% tablet and 99% dock. At last check it was 27% tablet and 99% dock.
Hope this is a fix.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Thanks so much for this. This just happened to me too and was tearing my hair out why it wouldn't charge. Done trickle usb charge for 5 min from my phone plug and then plugged normal charger in again and instead of 0% it was at 33% and is now charging again.
Hope This helps
I had this problem for so long, that i even gave up on looking for fixes.
the problem was that i remember dropping my adapter accidentally, so it became loose. but I didn't know this, I thought the cable was faulty. so simple fix...if your adaptor is loose, try fitting it in place.
sorry for my bad sentence structure and bad description, hope it helps
I bought a stock samsung battery for my galaxy s3. I am trying to charge it but it is not moving forward at all. I've powered off the phone, plugged in the battery and then plugged in a usb cord to charge it.
The results are the same no matter where I charge it.
I've tried two different AC adaptors and a usb cord to the computer.
When I plug in the power source, the phone vibrates once, shows the galaxy s3 logo, displays a battery charging status showing 0% charged. The battery is filling up green indicating that it's charging. It will perform the animation of filling the battery twice then the screen goes blank.
I've left it plugged in for a while now but it doesn't seem the be actually charging. I cannot turn the phone on with it plugged into a power source or not.
If I put the old battery back in, everything is fine.
I'm running the latest cyanogenmod m4 release.
The new battery you got is obviously a dud. Replace it
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