My charging cable broke a while back and I opened up the end (that plugs into the tablet) to have a look and noticed some wires that were not connected. I was able to spot where the two wires could have been but could not determine where exactly. I fiddled with it a bit with the tablet plugged in to let the indicator light show me when it was charging. After a few moments it just blinked steadily (5-10 times?) and since then it will not accept a charge (The indicator light does not turn on when plugging the tablet in) or power on. I left it plugged in for a long while and attempted to boot it in restore mode to no avail. I have no idea what to do next, but to change the battery. There is no physical damage, or burn marks anywhere in the tablet to indicate a major short when I was fumbling around with the charging cord like a fool. Any tips?
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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
Sent from my MB300 using XDA App
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 anyone have experience charging the battery?
I was using the phone it went dry, as in
I did get the warning that i only have 10% left / 5 % left and then i kept using it until it pop up a message saying
"To prevent damage to the phone, it will now turn off"
and off it goes
but when i plug it back to the USB cable, it got no sign of charging, no light, or indication of any kind.
if i try to turn on the phone, only the Soft buttons lid up, but it doesn't do anything.
Also when i had it plugged directly into the wall, it was not shown as charging, when the phone is ON and running the OS.
but now that the phone is completely OFF, when i plug in the USB charger directly to the wall then it shows the Battery Bar @ 5% for only a brief moment and then goes back off
AllGamer said:
Does anyone have experience charging the battery?
I was using the phone it went dry, as in
I did get the warning that i only have 10% left / 5 % left and then i kept using it until it pop up a message saying
"To prevent damage to the phone, it will now turn off"
and off it goes
but when i plug it back to the USB cable, it got no sign of charging, no light, or indication of any kind.
if i try to turn on the phone, only the Soft buttons lid up, but it doesn't do anything.
Also when i had it plugged directly into the wall, it was not shown as charging, when the phone is ON and running the OS.
but now that the phone is completely OFF, when i plug in the USB charger directly to the wall then it shows the Battery Bar @ 5% for only a brief moment and then goes back off
Click to expand...
Click to collapse
Yes, it always happens if you squeeze all the juice out of the battery. Be patient and let the cable connect. After a few mins, the touch buttons will light up. then after a few more minutes, the screen will light-up and show you the charging icon. By that time it reached 15%, you can already press the power button to boot the phone.
AllGamer said:
Does anyone have experience charging the battery?
I was using the phone it went dry, as in
I did get the warning that i only have 10% left / 5 % left and then i kept using it until it pop up a message saying
"To prevent damage to the phone, it will now turn off"
and off it goes
but when i plug it back to the USB cable, it got no sign of charging, no light, or indication of any kind.
if i try to turn on the phone, only the Soft buttons lid up, but it doesn't do anything.
Also when i had it plugged directly into the wall, it was not shown as charging, when the phone is ON and running the OS.
but now that the phone is completely OFF, when i plug in the USB charger directly to the wall then it shows the Battery Bar @ 5% for only a brief moment and then goes back off
Click to expand...
Click to collapse
The same exact thing seems to be happeneing to me. Did you figure out how to turn it on? I charged it overnight and nothing has changed except that the battery status shows a full charge. I still can't turn it on. After I take it off the charger and replug it in, it shows 5% again. Thanks.
the problem with mine was just a cable issue, found another cable, and it worked fine.
it didn't like the after market chargers
Most of the time this is not cable problem... If your battery is down and you put in PC USB - it will light after... you will wait a lot. If you put it in AC charger it will light after while.
PC USB is 500mA, AC charger is 600mA or more.
thanks for all the advice. I did get it to charge and boot. I left the battery out of the phone overnight then plugged in the original charger and the soft keys lit up and aftr 25 minutes I was able to turn it on all the way. Quite a relief.
I just opened the box and took out my new TF 700, I plugged the charger into a wall socket, then into the TF700. For a second or so I saw a battery icon showing about half charge. I've tried to turn it on but nothing happens when pushing the power button. I do have a orange light at the top left when the charger is plugged in but it won't turn on plugged in or not.
Any ideas, do I have to wait 8 hours just to turn it on or do I have a DOA
Thanks,
Dave
All of a sudden it started working, now to learn how to use it, its my first tablet.
Hey guys
I've a really big problem with my A510. Last week I charged my tab as usual. After a while I've checked my mails and felt that the tab was unusually hot, definitely hotter than on normal charges. I therefore disconnected the charger and the USB connector was terribly hot. I've checked the charger and noticed that the cablewas broken. I took a closer look and saw, that both wires have been ripped open and probably connected each other. I think it has created a short circuit, caused the USB connector to even melt in the inside.
Funny thing is, that it was possible to charge the tablet to around 60% and I've used it to order a new charger which arrived today, the battery is completely empty and the tablet can't be turned on. So I've connected the new (original Acer charger, no cheap copy). The orange LED on the power button appeared as usual, but I didn't turned it on as I wanted it to charge a bit before trying to booting it up. After an hour or so I checked the tablet and it was again unusually hot and the orange LED turned off. I've disconnected the charger and tried to power the tablet up, put nothing happened. Also pushing the reset button will not boot up the device. I've connected the charger again and the orange LED also appeared again, but after around 10 seconds it turned off again and the tablet got already hot within 30 seconds (around the area where Iconia Tab is written on the front side).
Does anyone have any ideas what could have happened? I'm thinking that the battery might have been damaged by the short circuit, but on the other hand I was able to use the tablet a day or so before the battery went down to 0% which would mean the battery might be ok.
I'm clueless right now and would be very happy for every idea.
Thanks!
Yesterday I've opened my tablet to check for any thing obvious. After opening the device I could already smell burned electronics. I further disassembled the device and found one IC on the mainboard which had some brownish powder on it, the IC type was no more readable. After plugging in the power charger this IC went extremely hot, so I assume that it burned while the broken charger was charging up the battery. I checked the internet for a replacement mainboard and found some on Alibaba. As the price is too high for me and I can't define if there are any more broken parts I decided to buy me a new tablet. As I was very satisfied with the product from Acer I've stayed with them and bought myself a Iconia Tab 10 FHD A3-A20.
Hey all, I have a stock tf700t that was working well until the charger cable snapped. Several months passed before the replacement cable arrived. So I put it on to charge overnight, and got both the orange light initially and then the green led to say it was fully charged. But I can't get it to respond to any attempts to turn on. I tried the usual
Pwr held for 30 sec.
Pwr and volume buttons
and stincking a pin in the reset hole
- but nothing happens. no vibration or LCD response?
Reading some forums, I tried to use a PC USB port to trickle charge the device, but interestingly this does not light the LED's.
Any ideas as to what is happening?
hoads1234 said:
Hey all, I have a stock tf700t that was working well until the charger cable snapped. Several months passed before the replacement cable arrived. So I put it on to charge overnight, and got both the orange light initially and then the green led to say it was fully charged. But I can't get it to respond to any attempts to turn on.
Click to expand...
Click to collapse
Do you remember the charge state before you stored it? Li-ion batteries generally don't like being stored in a totally discharged condition, and if the voltage drops below a critical level, the battery can even be permanently damaged.
Try charging the tablet from a PC USB port (directly - not via the dock) - it's normal that in this case the LED does not light up.
thanks for the advice, I am pretty sure it would have been <5% battery, maybe even lower. I hope the battery is okay, and will try your idea.
The trickle charge via USB takes a long time. Leave it connected for at least 6 hours and make sure your PC doesn't hibernate or sleep.