[Q] turned off for a long time and now won't start - Asus Transformer TF700

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.

Related

[Q] [HELP]Phone will not charge

Today my Triumph seemed to be draining the battery faster than normal, though I was also making a lot more calls than normal. I have a cable plugged into my PC at work which I plugged into my phone but the driver install window didn't pop up like it normally does and my PC's network connection got very slow. I unplugged it and my PC connection was fine again. I left my phone unplugged for the most part after that though I did plug it in once or twice. I don't think it was ever truly recognized by my PC at work today (it has worked before) though I'm not certain.
When I was about to go home I noticed my phone was off. I knew it was low on battery so I assumed that it had turned off due to low battery. It couldn't have been off any more than 30-60 minutes. I didn't think it should have turned off already for low battery yet though.
I plugged it into my car charger and my phone refused to turn on. About 20 minutes later i unplugged my phone and the red charging light was still on. I had to pull the battery. I then turned on my phone and it was working, but low on battery.
About 45 minutes later I drove home with my phone plugged in, but I didn't check to see if the charging light was on. The phone was still on. When I got home I tried plugging in the phone and I noticed that it was not charging. It still isn't. I have tried the following:
Restarting phone
Plug in while it is turned off (charge light comes on but not charging animation, must pull battery for light to go off. phone will not start while plugged in or charge light is on)
Try plugging into computer rather than wall
Try car charger
Swap battery to stock battery (I use an Anker battery rather than the stock. I haven't used my stock battery for a few weeks to a month. It should have been fully charged but only had less than 50%) and try everything again with same results
Right now I have my Anker battery in which was nearly dead (below 10%) plugged into the wall with it off hoping it will charge. My phone is mostly stock other than I rooted it using the b_randon14's method, installed b_randon14's tweak mod, and flashed in the Sprint PRL using a method from howard forums with the 60681 version. I had links but had to remove them due to not previously posting on this forum.
I noticed the usb cable is not solid in the prot on my phone, but it never was and doesn't seem any different. For example I can move the cable back and forth a little bit while plugged in. It remains plugged in when I do this and while the phone is off it knows it is plugged in obviously. Any ideas?
Ok... I left it plugged in while off for an hour then it started working... very odd. Nevermind then I guess, lol.
Saw this thread, was going to suggest that. Your issue seems to be one that happens across all sorts of devices that have rechargeable batteries, even Android phones (and especially $&!t MP3 players that you'll find at K-Mart). I once made the mistake of buying a $30 MP3 player that refused to turn on once its battery dropped to a certain level. Twice. From K-Mart, of course.
Thank goodness for returns.
I am still having issues and it is really frustrating. Sometimes it will charge when on, some times it won't. The only thing I think MIGHT be common between when it does and doesn't work is how much battery is left. I think it might work more often when the battery is closer to a full charge. What I often do is plug in the phone, shut it off, it will charge but charging animation isn't there and I cannot turn it on until the charging animation shows up. I think it only shows up when the phone is fully charge or close to it (I've only ever seen it when it is fully charged).
Unfortunately I don't have a lot of concrete information on this as i haven't had much time to troubleshoot and verify any of my suspicions. I do know that USB Debugging has nothing to do with it and clearing my battery statistics didn't have any affect either. This issue is very frustrating and I believe are all software based, not hardware.
Any ideas or pointers?
Out of curiosity, have tried a different USB cable? I know that you talked about switching chargers, and I couldn't tell if this was just the base unit and you plugged the same cable in or, if it was a completely different charger and cable.
I have a wall charger with a usb cable at my office, a wall charger with a (different) usb cable at my house, and a car charger with its own non detachable usb cable. All have the same issue.

[Q] iPAQ 110/111 turns on only when plugged in, battery is fine. HELP! Please!

I have an iPaq 111, part of the 110 series. It's been stored in a closet for over two years. I hooked a batter charger to the battery itself (outside of the device) to charge it up enough to be able to take a charge once I put it back inside the device.
Once I did that, it powered right up, and everything worked perfectly. Then I went to unplug it, and surprise to me, it shuts off.
I've tried EVERYTHING, HP doesn't even publish there ROM. Found a setup utility to download to my PC to access my iPAQ, but it's in German, and high school was a long time ago so it's hard to understand; but what I can understand enough is that it cannot find a device. Same goes with the extension I installed through HP's website, it only finds my HP computer.
I've plugged it into my computer and the light is GREEN, suprisingly, but it does not turn on. If I plug it into the AC power adapter, it DOES turn on, stays green, and once on the homescreen, shows battery at 100% (was 23% onwards today when I was charging it). My voltage meter shows about 4 volts coming from the battery. Contacts on all ends are clean. ROM issue? Yes, I have tried soft and HARD resets.
Any help will be much appreciated. Please please please! THank you!
Battery is not fine, its dead. The proof is the fact that on AC power it turns on, but not when connected to.USB. AC power has enough amps to directly power the device, USB does not. When connected to USB power is indirectly drawn, as the phone attempts to use battery power for operation while charging it at the sametime, thus lessening the total draw. It still however needs battery to work.
Basically, the battery is dead. By a new one of eBay.
icenight, THANK YOU for the reply, it was so quick. I have figured it was the battery, BUT:
I've checked the battery with a voltmeter and it shows over 4V- using my good Fluke. Also, when it's plugged in, it progressively showed the battery charging and it's now at 100%...
Are you still thinking it could be the battery? Not enough amps from the battery? I hate to sound cheap, but it's more about the wait- I want to eBay this iPaq since I don't use it and it keeps getting in the way!
Thanks again
iPaq still not working
New battery arrived. Still does the same thing. I've read around and it could be the ROM, but it wont stay on when plugged into the PC USB port. Computer sometimes makes a noise when I plug and unplug it though. Even put a homemade "in-line" power supply to it using a 5V 1.5A adapter. This allows it to stay on when plugged into the PC usb, but there is no communication. This thing is a pile of **** I tell ya.
Any help would be so much apprecaited. Thank you so much. I can barely get past these "captcha" thingys.
Regards,
Robert

Why did it discharge, and why won't it charge anymore?

Two days ago, I turned my Infinity off and docked it. Both batteries were fully charged. A few hours ago I picked it up again, and the tablet wouldn't turn on.
I plugged it into the wall outlet. It started charging and I was able to turn on the device. It had 0% charge, and the batteries on the dock were also dead. What I don't understand is: how can the Infinity and the dock discharge completely in that time even though it was supposed to be off?
I left it plugged in so that I could use it while it charges. After some time, it asked me to connect the charger and then turned itself off due to almost dead batteries. Cable was still plugged in, though the charging light was off.
Tried connecting the cable to the dock, no light. Tried connecting the cable to my computer, it didn't work. So, the cable must be faulty, right? I can still turn the Infinity on, it'll boot normally and turn itself off after it's reached the lock screen. There's a red exclamation mark on the battery icon that wasn't there in the first time I turned it on, does it mean anything serious?
I had it drain to zero once overnight. Wasn't completely charged but it was strange... hasn't happened since in fact it generally has very good battery life.
I would definitely try a new cable and or charger.
Yeah, I've asked the store for a new cable. They'll have to mail it to me, so my tablet will stay dead for a few days. Now I know why propietary connectors suck.
Anyway, it seems I'm not the only one that had problems with the charger. Many people have reported overheating, but that never happened to me. The adapter that came with my Infinity seems to be a newer model; the plugs can't be folded or detached.
Charger: I had that happened several times to the SL101. Turned out I had something else plugged into the USB and the adapter was overloaded and tripped. Unplugged for a little while for it to cool down and reset itself.
What do you mean you had something else plugged into the USB?
Anyway, I've left my adapter alone for quite some time. I'll go see if it works as soon as I get home.
Beibin said:
What do you mean you had something else plugged into the USB?
Anyway, I've left my adapter alone for quite some time. I'll go see if it works as soon as I get home.
Click to expand...
Click to collapse
I was charging a small 700 mAh battery through the USB. That was enough to trip the AC adapter.

[Q] Won't turn on

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.

[Q] Nexus 5 won't turn on unless plugged in to charger.

After doing some extensive research as to why my Nexus 5 was randomly off when at full charge I discovered there were obviously alot of issues going on with this.
After doing all of the suggestions (e.i. Charging for an hour with standard AC, An hour with USB) I finally got the thing to turn one *whew*
Well not so *Whew* after all. The battery indicator in the tp left of the screen is saying the battery charge is empty. The charging level also says %0. As soon as I unplug the charger it turns off due to lack of charge.
Did the factory rest thing and it's still doing the same thing.
After some experimenting I have discovered that while in the boot screen (Vol+/Vol- & Power) it does not have to be plugged in. Interesting.
Every time the phone gets to where you can see the battery level it thinks it has no charge and auto offs itself.
What do I do?
I would first try a different charger. Its possible that you have a bad charger/USB cable. If that doesn't work then I'd send it back and get a warranty replacement phone but more than likely your issue is a bad charger/USB cable and if not that then a bad battery.
sent from my neXus 5

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