I appear to have bricked my Transformer.
I had a very successful dual boot Android/Linux sytem up and running. I installed with OLife Prime. However, this evening I finished what I was doing in Ubuntu, without thinking closed the lid and went for dinner. When I returned and opened the lid, the screen stayed blank. No amount of pushing the power button, or down volume + power, or even up volume + power, or connecting to the charger (no light even came on on the device), or even connecting to a laptop via USB rectified the problem.
I have read about some of the sleep issues on the Wiki, however everything there seems to indicated that the screen should flash on and off after closing the lid. In my case, it seems to be in a very, very deep sleep. I also read something on page 119 of this thread about deep sleep issues, but not really a solution around how to fix it. The Wiki said something about a hard reboot, but I think I´ve already tried that.
I had made a couple of changes to the stock Ubuntu install - I was running Lubuntu (Lxde window manager) to improve performance, and I also had Firefox writing cache to RAM rather than disk. Apart from that, a pretty standard install.
Any thoughts much appreciated because I am a bit stuck!
phillcX10 said:
I appear to have bricked my Transformer.
I had a very successful dual boot Android/Linux sytem up and running. I installed with OLife Prime. However, this evening I finished what I was doing in Ubuntu, without thinking closed the lid and went for dinner. When I returned and opened the lid, the screen stayed blank. No amount of pushing the power button, or down volume + power, or even up volume + power, or connecting to the charger (no light even came on on the device), or even connecting to a laptop via USB rectified the problem.
I have read about some of the sleep issues on the Wiki, however everything there seems to indicated that the screen should flash on and off after closing the lid. In my case, it seems to be in a very, very deep sleep. I also read something on page 119 of this thread about deep sleep issues, but not really a solution around how to fix it. The Wiki said something about a hard reboot, but I think I´ve already tried that.
I had made a couple of changes to the stock Ubuntu install - I was running Lubuntu (Lxde window manager) to improve performance, and I also had Firefox writing cache to RAM rather than disk. Apart from that, a pretty standard install.
Any thoughts much appreciated because I am a bit stuck!
Click to expand...
Click to collapse
sounds like the battery is flat
lilstevie said:
sounds like the battery is flat
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Click to collapse
Battery was about 80% charged when I left the machine and I only left it for about two hours. Also, it seems to accept no charge now - small light on keyboard dock near charge port does not come on when connected to mains
EDIT:
OK, it was a flat battery and I feel pretty stupid for crying wolf, but I still don't understand why.
I had the Transformer on charge for most of the afternoon. I was using Android and had pretty much 100% charge. I then used Ubuntu for about 2 hours before closing the lid for another two hours. After this the battery was flat. Super, mega fast battery drain!
The second part of the problem was the not charging part. Once before I had a problem with the Transformer not charging. To fix this, I took apart the charging block (remember the bit that plugs into the wall came in two parts originally) and gently bent outwards the two pins inside. Put it back together, plug it in and the Transformer started charging.
All is good once again, but I still don't know the battery drained so fast.
phillcX10 said:
Battery was about 80% charged when I left the machine and I only left it for about two hours. Also, it seems to accept no charge now - small light on keyboard dock near charge port does not come on when connected to mains
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Click to collapse
Dead charger? If it doesn't charge the tablet alone, or the dock alone, then that'd be my suspicion...
phillcX10 said:
Battery was about 80% charged when I left the machine and I only left it for about two hours. Also, it seems to accept no charge now - small light on keyboard dock near charge port does not come on when connected to mains
EDIT:
OK, it was a flat battery and I feel pretty stupid for crying wolf, but I still don't understand why.
I then used Ubuntu for about 2 hours before closing the lid for another two hours. After this the battery was flat. Super, mega fast battery drain!
Click to expand...
Click to collapse
Beware closing the lid while using Ubuntu! The screen doesn't turn off. it looks like it's going to turn off at 3/4ths closed and then the display goes back on when the lid is completely down. I don't know for sure, but maybe that had something to do with it. the same thing applies for using Prime. if you lock the screen before you close the tablet, as soon as you close it, the screen comes back on.
Sent from my HTC Vision using xda premium
Related
I have a us spec wifi xoom. Or I've had is perhaps more of a correct statement now.
What happened was this:
Tablet was working fine in the evening. Had about 80% power left in it.
Today in the afternoon got around to it and had to do some stuff on it...and it was dead.
Wouldn't react to either the Power Button, or the Volume Up plus Power button.
Initial thoughts - ah some app caused the battery to drain. Or was it the custom ROM. No worries, will hook it up to the charger.
So i hook it up and the charging light comes on. But XOOM wont turn on while plugged in. Its been charging for an hour plus, LED's still white and XOOM's still unresponsive.
Any ideas what to do?
Did you try holding volume up and power for a few seconds? Sometimes than can take 5 to 10 seconds to work.
Sent from my Xoom using Tapatalk
Yeah, tried that. Didnt work.
2shellbonus said:
Yeah, tried that. Didnt work.
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Click to collapse
was it overclocked?
Yes. 1,2Ghz
if I was you, I'd either have my dealer send it in or, if that is not option to you, open it up and disconnect the battery for a little while...
maybe another idea: how does your power-button feel? From the symptoms it would also be plausible that just that one button had a malfunction. You wouldn't be able to unlock your xoom, power+vol-up wouldn't reset the thing, if you configured your xoom to use the charge-led while the xoom is powered on, it'd glow once you plugged your xoom in, etc... Does your pc detect your xoom if you plug it in via usb?
No the XOOM isn't detected by the computer. Power button feels as it always felt. Clicky and responsive.
As for opening it up, I dont have a TORX screwdriver or however that thing is called, to open the XOOM up. I was thinking along those lines a swell, disconnect all power for a while and then try. Will try to get the tools tommorow and see waht happens.
Thanks for the suggestions though.
If you've got an sdcard in it remove it and try the usual power in tricks.
I've read sdcards can stop the Zoom powering on especially if it goes completely flat...
Tried that already. No go unfortunately. But thanks nonetheless.
2shellbonus said:
Yes. 1,2Ghz
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You may have fried the processor inadvertently say if an app went max out for 2-3 hours and killed the battery just a thought.
asmanthebell said:
You may have fried the processor inadvertently say if an app went max out for 2-3 hours and killed the battery just a thought.
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Battery had charge in it when I first picked up with the issue. LED was white. If battery is dead LED is red.
Frying the processor - maybe. Hope not
If you have a white light then that means the device is powered off. If you can boot it to the dual core screen then we can help.
Sent from my Xoom using xda premium
dellenrules said:
If you have a white light then that means the device is powered off. If you can boot it to the dual core screen then we can help.
Sent from my Xoom using xda premium
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I get no response from the XOOM. The display does not turn on at all. No dual core, no nothing.
If dual core came up i'd adb the thing easily into life.....but..no go.
You said you held volume up, down and power and got nothing.
Sounds like a battery issue.
Sent from my Xoom using xda premium
Tbh just try getting a anew charger...
Charger works, since battery LED shows full charge
I had a similar problem and disconnecting the battery for a bit worked like a charm, I bought my torx set from walgreens for 5 bucks (comes with many different bits) also any hardware store will carry a small set, you will only need to unscrew 4 screws and move 2 clips up, 2 screws on the bottom and 2 screws on the battery connector. I slipped a piece of paper in between the battery connector and the xoom board waited about 30 seconds removed the paper and screwed it back together and it turned on just fine. the whole process should take about 5 minutes at most. Ifixit.com has a great teardown of the xoom trust me in the end it will be worth it.
darkknightsolano said:
I had a similar problem and disconnecting the battery for a bit worked like a charm, I bought my torx set from walgreens for 5 bucks (comes with many different bits) also any hardware store will carry a small set, you will only need to unscrew 4 screws and move 2 clips up, 2 screws on the bottom and 2 screws on the battery connector. I slipped a piece of paper in between the battery connector and the xoom board waited about 30 seconds removed the paper and screwed it back together and it turned on just fine. the whole process should take about 5 minutes at most. Ifixit.com has a great teardown of the xoom trust me in the end it will be worth it.
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Will look into it, thanks
No problem let me know if you need any more assistance.
I'm having almost the exact same problem with my WiFi Xoom. I went to restart it yesterday and it turned off and will not turn back on. When I plug it in to one of my docks, it shows fully charged (green light.) Powering on with the up volume does nothing (I held them both for 30 seconds.) I disassembled it last night and disconnected the battery for some time but it still will not power up. I plan to spend some more time on it this evening if possible.
The only other details about it is I'm rooted running Team EOS ICS 1.0.0 with the stock kernel provided with the ROM.
Anyone come across this? I put it on standby last night after reading a bit of my book on it, and it had around 50% power remaining. This morning, it was totally unresponsive; pressing the power button does nothing at all. I've charged it for 12 hours in the meantime.
I've done the following all with and without the power attached:
- Pressed and held power for 15 seconds through to a minute
- Pressed and held volume up with power to attempt to get into recovery for up to a minute
- Pressed and held volume down with powerfor up to a minute
- Pressed and held power while touching screen (read that one off another forum)
I guess potentially it could be on and in a crashed state and unresponsive to the power, so maybe in a weeks time when it runs out of juice, I'll be able to charge it and power it back up, but in the meantime, I'd welcome suggestions.
A few weeks ago I updated it to the official ICS build that was released, but did the update myself rather than using KIES, as KIES didn't even recognise my Tab's firmware original version. It's been absolutely fine before the update, and since. I only mention it because I've read about the Samsung build of ICS being prone to self bricking itself, but I couldn't determine what the symptoms of this vulnerability were.
Thanks for any help offered,
Will
did you try connecting USB cable and plugging it into your PC? did u get any activity? can ADB recognize your tab?
I think your tab just ran out of juice and the battery's protection circuit has kicked in. Try taking it to an electronic shop and plugging in different chargers preferably one with an output more than 2.1 amps to kickstart the charging. Plug it in and wait till the charging animation starts.
Sent from my GT-P6800 using xda premium
Had the same problem while on holidays. Once the battery goes below a certain level, you won't be able to charge it through USB any more. Instead you need to use the wall charger.
I think it's bad enough that the 7.7 doesn't have a micro USB port, but things like that are just stupid and Samsung made a big mistake here. It don't think it's the same with the newer tablets though. It's also not possible to just buy cables or chargers for this strange Samsung port, so when you forget your wall charger at home at some point you won't be able to use your tablet any more.
As long as you charge with the USB cable early enough, you can avoid it though.
A few months ago I experienced the same thing, the Tab just wouldn't turn on anymore.
I tried all there is without any luck.
Contacted amazon and they replaced it with a new one in less than 48 hours.
So far not Problems with the new device.
I have the P6800 and this morning I took it off charge. Put it into standby and only used it for about 20 mins then left in standby all day. It had about 95% remaining when I did so.
Picked it up this evening and the lower left area of the screen was warm and it would not switch on. Didn't think of the ADB idea but will try this next time but I had to reset it and when it powered on tonight after the reset, it was down to 15%. Within about 2 mins of checking stuff it was down to 3%.
Something is running when it is in standby but as I can't switch it on I can't check with BetterBatteryStats or CPUState to know what is wrong.
It does this every day. I am tempted to do a factory reset and reinstall only limited software.
Dave...
I see this thread is a little old but this has just happened to my P6810 too. A pity nobody reported back what the end result was.
My device had at least 95% battery last night but today I can't get it to respond at all, I've tried the wall charger and still nothing.
Anything else someone could suggest for me?
Edit. I tried getting anything from it connected to my PC but it couldn't find a device there. However I then tried it on the wall charger again and now get a blue battery icon, quite big, with a five step animation indicating that it is charging.
No idea how it went flat as the battery on this lasts a long time assuming the screen isn't on. When it boots properly I'll have a look at what the most recent apps I installed were as it has only done this once. Before this it has been perfect for the three weeks I've had it.
Cluey said:
I see this thread is a little old but this has just happened to my P6810 too. A pity nobody reported back what the end result was.
My device had at least 95% battery last night but today I can't get it to respond at all, I've tried the wall charger and still nothing.
Anything else someone could suggest for me?
Edit. I tried getting anything from it connected to my PC but it couldn't find a device there. However I then tried it on the wall charger again and now get a blue battery icon, quite big, with a five step animation indicating that it is charging.
No idea how it went flat as the battery on this lasts a long time assuming the screen isn't on. When it boots properly I'll have a look at what the most recent apps I installed were as it has only done this once. Before this it has been perfect for the three weeks I've had it.
Click to expand...
Click to collapse
This is the infamous Sleep-Of-Death issue that is randomly experienced by myself and other users here, usually happens when WiFi bugs out due to weak signal
TeeeJaay said:
This is the infamous Sleep-Of-Death issue that is randomly experienced by myself and other users here, usually happens when WiFi bugs out due to weak signal
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Click to collapse
hhmmm, interesting.
I was having trouble with wifi just before this happened. Both my GS2 and this have been claiming to connect to my wifi but aren't actually getting an IP address from it.
I can't remember if it was last night or the night before but I manually set an IP address, the signal strength is fine as my abode isn't very big.
After it has recharged I'll have a poke and see what I can find, thanks for the reply.
So my device seems to be working fine again. It had gone SO flat that the date and time were incorrect!
After I could power it on I had a look at Better Battery Stats and nothing looked wrong so I have no idea what happened. None of the apps I'd installed the day before it played up had long wakelocks and weren't running when I turned it off.
For reference they were:
My Tracks
MyTrails
Google Earth
AndSMB
I'd turned both of the GPS tracking devices off before I turned it off for the night.
It hasn't played up since but it hasn't been long so I'll see what happens.
Yeah, the sleep of death is incredibly annoying. Honestly, the GTab 7.7 is a **** device. Samsung made way too many mistakes and won't do anything to fix it.
A similar thing happens to me every once in awhile. The way i check to make sure everything alright is to see if it boots into download mode. I just leave it plugged in for a couple hours and it eventually comes back on.
someth1ng said:
Yeah, the sleep of death is incredibly annoying. Honestly, the GTab 7.7 is a **** device. Samsung made way too many mistakes and won't do anything to fix it.
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Click to collapse
this is why my 7.7 is the last tablet/phone from Samsung i'll never trust them they are just bombarding the market with new devices and leaving the old ones to dust
^thats what I thought too but that gs4 is really tempting. I've heard worse about HTC in that regard anyways so that why I'm not going with the one.
Finally.. i bought Sony xperia Z.
I'll sell my galaxy tab 7.7. I.m very disappointed with samsung.
Sent From XPERIA Z
kishd said:
I think your tab just ran out of juice and the battery's protection circuit has kicked in. Try taking it to an electronic shop and plugging in different chargers preferably one with an output more than 2.1 amps to kickstart the charging. Plug it in and wait till the charging animation starts.
Sent from my GT-P6800 using xda premium
Click to expand...
Click to collapse
Unbelievable! ... this trick still works ... thank you very much for you help ...
^^ yo, this 'trickle charge' trick did NOT work on my (long) dead P6800... any other suggestions??
Quite strange because my Samsung GT-P6800 tablet was fully charged, it went completely blank dark as if it was off. To my amazement, SMS keeps dropping and calls kept coming in. Yet it is still as blank as though the tab was off. I pressed the power button and the volume up bottom for it to reboot. It rebooted without the screen coming up. It has been blank for two days now. What could be the cause? And what possible solution can be given?
Tried the following methods=
Cold boot
Switching from PC USB to Asus charger
Switching from other manufacturer's charger to Asus
Freeze the charger(???)
Adaptor charge the tablet in good order, but it doesn't seem to be charging the doc.
The dock is always blinking rapid amber led when plugged in and the adaptor just get really hot.
Guys, any advise? Warranty expired, it gonna hurt my wallet to send in for repair ;(
Sent from my Nexus 7 using xda app-developers app
If you let the dock drain 100% it sometimes encounters problems. If you open up the dock you will see a little switch. Flip it back and forth and it should start charging again
mrevankyle said:
If you let the dock drain 100% it sometimes encounters problems. If you open up the dock you will see a little switch. Flip it back and forth and it should start charging again
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Click to collapse
where exactly is that small switch ??
RIght beside the battery on the charging port side if i remember correctly
mrevankyle said:
RIght beside the battery on the charging port side if i remember correctly
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Click to collapse
Got the same problem as the OP - Dock not charging and even the dock option is greyed out within the Settings - Interface - Launcher option.
My question is - Is there any software command that would simulate the flipping of the switch using ADB etc? Would not want to open the dock as yet..
It works properly when I attach it to the tablet, only problem is that it doesn't charge...Any pointers would be more than welcome!
Am on 4.1.2, CM10 2012 12 08 Unofficial
Thanks!
Try a cold boot, it fixes lots of these problems. Hold the power and vol down buttons till you see 2 icons on the screen, then release the 2 buttons and let it boot. Try it while docked and it should start charging again.
Lethe6 said:
Try a cold boot, it fixes lots of these problems. Hold the power and vol down buttons till you see 2 icons on the screen, then release the 2 buttons and let it boot. Try it while docked and it should start charging again.
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Click to collapse
Yes, already tried that (it says cold booting linux and all..) , I tried it while docked and with the charger in the dock..but still the same orange blinking light..Dual Battery Widget also doesnt detect the dock..though I can type with the keyboard and all that stuff..
Guess you should open it up then, and try to switch trick as I doubt there's an ADB command for a hardware switch inside a "third party device" since it's not part of android but really an extension that probably requires drivers and/or kernel modules outside of stock android. If there is, it's probable it's not documented if it was added by Asus for Asus. While it's opened up inspect the battery for obvious signs of wear/damage. Dual battery widget didn't work for me on some ROMs (can't remember which exactly but only the tablet battery was detected) but recent CM10 should have a separate icon with a dock through the battery icon while docked.
You can try the dumpsys utility from ADB, which prints out battery info so you may find something, but you can't manipulate data at all:
adb shell dumpsys battery
Also, did you try wiping the battery stats in recovery? If you have that option...
And lastly, lots of people are suggesting the freezer trick. To me that would be last resort but it looks like it's working for some people it seems.
Lethe6 said:
....it's probable it's not documented if it was added by Asus for Asus...
...You can try the dumpsys utility from ADB...
Also, did you try wiping the battery stats in recovery? If you have that option...
And lastly, lots of people are suggesting the freezer trick. To me that would be last resort but it looks like it's working for some people it seems.
Click to expand...
Click to collapse
Thanks for your detailed analysis and useful suggestions - just reflashed the CM10 8th Dec UNofficial rom y'day only and then recovered all the apps etc..But your idea of wiping out the battery stats didn't cross my mind! Should be there under advance I guess within recovery..(Have touch based 5.9 or something)
I would let the charger plugged into the dock and then try again the cold boot trick to see if that resolves the issue..Else would see if I have the option of wiping battery stats within recovery..
I am currently on vacation and hence donot want to open up the Dock here, freezer trick while harmless but I fail to understand logically how that would help Nevertheless would try it out if the above doesnt work..
Would report on the updates tomorrow (after 12 hours or so.)
The freezer trick is an oldie but a goldie. I used to do it with old hard disks that had certain problems and it worked in some cases, but usually you had an hour or so to salvage the data then it would die for good...
The logic behind it is that cold contracts the parts while heat expands them. So if it's a bad solder or something alike, the cold can temporarily fix it. But as I said, it would be a last resort for me and I'd triple seal it in ziplock bags to make sure no humidity can get in or out.
Let us know how it works out!
Lethe6 said:
The freezer trick...
..Let us know how it works out!
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Click to collapse
I am actually inclined to open up the keyboard and flip the damn switch now!
Also I did try cold booting (as the tablet had charged to 98%) and also wiping out the battery stats, but no change in situation still.
Opened the keyboard, flipped the switch but still no change..Orange light just keeps on blinking approximately every second..
Am at a loss to understand what could be the problem - the dock and tablet were bought in Sep last year and the dock has hardly been used (probably not for more than 20-30 hours in the last 14 months or so..)
Anyway I havenot closed the keyboard completely, would flip the switch again after sometime and see if that changes the charging behaviour in any way!
Anyone who has had success with dock charging issue after flipping the switch?
Update on previous post - Suspecting that it could be a software issue as well, I flashed an old Megatron Rom (based on CM9), and tested the switch again.
Switch off - Only EeePad's battery is shown
Switch On but no charger - Dock's battery is shown (symbol of battery + Keyboard) BUT with a red exclamatory sign, along with the normal EeePad's battery
Switch On and with Charger - Dock's battery is shown (symbol of battery + Keyboard) with charging sign , along with the normal EeePad's battery
So definitely an improvement as compared to CM10!!
Wondering if I should search for a Stock (Rooted ?) Firmware and flash that..Or probably just a firmware for the dock (does that exist?)
I'm pretty sure there is firmware for the dock (I think you see it in the settings while docked) but I don't think it's available, nor does any rom actually change it they just "use" it. For sure the best thing to try would be stock now with dual battery to make sure it works properly. Easy flasher will get you back to stock, provides root and can install different recoveries for you (there's plenty of others but this one seems easiest and worked best for me).
I'm thinking you're right on both accounts: the switch did work and there's a software issue somehow causing this. I've seen stranger things with custom roms. Glad you're making progress!
Lethe6 said:
.. the best thing to try would be stock now ..Easy flasher .. seems easiest and worked best for me..
Glad you're making progress!
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Click to collapse
Thanks a bunch Lethe6 !! I have downloaded the Easy Flasher (V 0.8.3 Stable) and am downloading the Stock Rom from ASUS WebSite (300MB)..Its a slow connection here, so I would be able to report back by tomorrow only..But I am optimistic that Stock Rom should resolve the issue with the charging!!
Thanks once again for providing the links, I would report back tomorrow on the progress!
UPDATE on prev post - Flashed the latest stock from ASUS Website ..It does show the Dock Battery BUT at 0%
And from what I read here, I seem to have run out of lack as apparently there is a design flaw wherein there is no way a dead battery can be revived!!
(I ran out of warranty in September but as I wasn't using the dock really at that time, I didn't bother to look into the issue at that time..)
That really sucks But it must be a particular model because mine has went to 0% numerous times and I've never had that issue before. Did you try the freezer trick? At this point if it's supposedly completely dead, might as well give it a shot. Also some people suggest plugging it into USB for 5-12 hours, the trickle charge may help getting it going again. If the tablet is not 100% charged the dock won't start to charge either, so try just with the dock then try with both. Also check this out, sometimes strange fixes are the best.
You can probably find a refurbished dock for under 100$ during the holidays online, if you really need it.
Out of curiosity which series dock do you have? Mine is a B70 purchased in UK last September..(Tablet is also having a S/N starting with B70 and SBK v2)..
I tried the other fix as well that you mentioned - that is using a different USB charger, to my surprise without the tablet attached, there was no light on the dock. but if I attached the tablet, then orange light was blinking much quicker! So seems like the dock is quite sensitive wrt the current supplied through the USB cable..(Guess all USB chargers have typically 5V output or something?)
On using the original ASUS USB Charger, light blinks slower (with or without the tablet attached)..Have left the charger plugged in again ..in the faint hope that some trickle charge is able to revive the dock's battery!
And no, haven't tried the freezer trick as yet
Would probably contact ASUS UK once I am back in UK..
My "mobile dock" version (you can see it in settings -> about tablet -> mobiledock) is EP101-0213 and my tablet is SBKv2 C30 purchased in Canada 6 months ago.
There's a nice article explaining voltages and amps in relation with phones (which applies to almost any mobile device), however from what I read, the Asus wall charger has a different pinout for USB and feeds the power differently. I'm sure you can find the exact specs here somewhere, I saw people showing how to make your own charger.
But assuming you're right and it's sensitive to the current (Bad design? Cheap parts?) then it's possible that simply replacing the wall charger would solve it. I bought a spare one to leave at work for 8$ on ebay and it works nicely so far!
Just out of curiosity.. did you/can you try to connect it to another power source? Like a different house? I once had a problem with a charger that there was too much noise on the electrical system and the charger couldn't keep a decent current output because of the variations, so the phone would say it was charging but it wasn't; tested later at several locations and it was working. I know it's a long shot but hey at this point...
Thanks! Would have a look at the link you provided..Meanwhile I also came across this link which kind of indicates that using a 12V 1A charger fixes the dead battery! Would probably order the relevant stuff from ebay and see how it pans out! Just crossing my fingers at this point really and have also left the charger plugged in to see if it does trickle some charger into the dock!
After flashing the latest stock rom (instead of CM9 or CM10), I also have same version for my dock ending in 213..
Finally apparently it seems that USB Debugging off/on also seems to affect the dock's battery as per the various other charging related threads on XDA..
Thanks for all your suggestions - you keep me motivated to try out various things and I am learning new things as well !
PS : Forgot to mention that I had already tried a different power outlet (i.e. in UK) and now another one in a totally diff country!
Hi,
I've had my TF700 since it came out and I love it. It was running CROMBi-kk for the last month or so, and my experience has never been better. However, it would die before the battery reached anywhere close to 0%. I didn't care about that until last night, when it died at more than 50%. I was surprised that the battery would not calibrate itself over time.
Anyway, I drained the battery some more, until it could no longer boot, and left it on the charger overnight. It will not boot at all now. I held the power button down for more than a minute, on and off the charger, on and off the keyboard. It's completely dead. The only reaction I get from it is the green LED on the top of the tablet when I plug the charger in. It never starts booting up, never vibrates, nothing. The ROM has been stable until now, making me think that it's hardware. If it matters, it's been like this for 12 hours, and the tablet has been in room temperature.
Is there anything I can do to turn it on or verify? I don't care about data loss. Any and all ideas are welcome.
Thanks,
- Bocete
Bocete said:
Hi,
I've had my TF700 since it came out and I love it. It was running CROMBi-kk for the last month or so, and my experience has never been better. However, it would die before the battery reached anywhere close to 0%. I didn't care about that until last night, when it died at more than 50%. I was surprised that the battery would not calibrate itself over time.
Anyway, I drained the battery some more, until it could no longer boot, and left it on the charger overnight. It will not boot at all now. I held the power button down for more than a minute, on and off the charger, on and off the keyboard. It's completely dead. The only reaction I get from it is the green LED on the top of the tablet when I plug the charger in. It never starts booting up, never vibrates, nothing. The ROM has been stable until now, making me think that it's hardware. If it matters, it's been like this for 12 hours, and the tablet has been in room temperature.
Is there anything I can do to turn it on or verify? I don't care about data loss. Any and all ideas are welcome.
Thanks,
- Bocete
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Connect it to your PC via USB, make sure the computer doesn't go into sleep mode and let it trickle charge for 8 hours or so. The LED will not come on, but it should charge very slowly. This has helped some people to recalibrate the battery too, so hopefully it'll breathe some life into it.
BTW, it's never a good idea to totally drain the battery and let the tablet die for lack of juice.
Sent from my HTC6525LVW using Tapatalk
berndblb said:
Connect it to your PC via USB, make sure the computer doesn't go into sleep mode and let it trickle charge for 8 hours or so. The LED will not come on, but it should charge very slowly. This has helped some people to recalibrate the battery too, so hopefully it'll breathe some life into it.
BTW, it's never a good idea to totally drain the battery and let the tablet die for lack of juice.
Sent from my HTC6525LVW using Tapatalk
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I'll do just that.
Yeah, I had no idea. The idea came from the (good?) old format-the-battery days.
berndblb said:
Connect it to your PC via USB, make sure the computer doesn't go into sleep mode and let it trickle charge for 8 hours or so. The LED will not come on, but it should charge very slowly. This has helped some people to recalibrate the battery too, so hopefully it'll breathe some life into it.
BTW, it's never a good idea to totally drain the battery and let the tablet die for lack of juice.
Sent from my HTC6525LVW using Tapatalk
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I didnt realise it could take any charge from a PC USB socket! you learn something new every day!
Still dead. Leaving it on USB overnight didn't help.
Bocete said:
Still dead. Leaving it on USB overnight didn't help.
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Darn! Sorry man...
Did you have fsync off? If you have sudden reboots (and yours seems to have died multiple times from lack of power) you should not run it with fsync off..
I know, that doesn't help anymore - just thinking somebody else may benefit from reading this.
Leave it alone a couple of days and try again. Sometimes things magically do work themselves out...
berndblb said:
Darn! Sorry man...
Did you have fsync off? If you have sudden reboots (and yours seems to have died multiple times from lack of power) you should not run it with fsync off..
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fsync off cannot cause this kind of problems - in the worst case your data partition needs to be reformatted, but the ROM will boot. In the very unlikely case that you remounted the system partition writable and you crash while writing to it, you may have to reflash the ROM too. But it can never break the bootloader or the recovery.
Nah, this rom was running with fsync and without data2sd.
I think it's time to start looking for a new one ;( Not the expense I needed, but did I use it daily.
Bocete said:
I think it's time to start looking for a new one ;( Not the expense I needed, but did I use it daily.
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Several people who were in a similar situation have reported that their tablet "magically" healed itself after a few days, so there is hope.
_that said:
Several people who were in a similar situation have reported that their tablet "magically" healed itself after a few days, so there is hope.
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Still nothing. I think it's dead.
The upcoming TF303 looks decent. Can you anticipate how vibrant the modding community will be considering the Intel Atom? The modding community, along with your kernel work, made my TF700 usable, and I am really thankful for that. I would like to have custom options in case the stock kernel/rom do not deliver.
If Intel Atom is in any way problematic, I may try to get a new TF700. They're still being sold, and presumably not for long. The modding community for the TF701 seems basically nonexistant, which is a problem for me.
Bocete said:
Still nothing. I think it's dead.
The upcoming TF303 looks decent. Can you anticipate how vibrant the modding community will be considering the Intel Atom? The modding community, along with your kernel work, made my TF700 usable, and I am really thankful for that. I would like to have custom options in case the stock kernel/rom do not deliver.
If Intel Atom is in any way problematic, I may try to get a new TF700. They're still being sold, and presumably not for long. The modding community for the TF701 seems basically nonexistant, which is a problem for me.
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I had that just happen to me. What I had to do was open the TF700 up using the steps from iFixit and after opened up I turned the power switch slider on the main board to off for about a minute and then back on. Once I did that it powered back up again. One thing though if you're not comfortable with opening up you're Tab I would not suggest doing it because the plastic tabs that hold it together can be easily broken I got lucky and didn't end up breaking any of them. Still not sure why the Tab did this in the first place. In any case I hope this helps.
jeffw111 said:
I had that just happen to me. What I had to do was open the TF700 up using the steps from iFixit and after opened up I turned the power switch slider on the main board to off for about a minute and then back on. Once I did that it powered back up again.
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Glad you got it working again. Before that, have you tried pressing the power button for a very long time (like 30 seconds) or pressing the pinhole reset button? I was under the impression that these would have a similar effect as physically turning it off and on.
_that said:
Glad you got it working again. Before that, have you tried pressing the power button for a very long time (like 30 seconds) or pressing the pinhole reset button? I was under the impression that these would have a similar effect as physically turning it off and on.
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Yeah I tried all the usual methods of resetting including holding the power button for over 1 minute, hitting the reset button beside the HDMI connector and trying the PC slow charge route nothing would even get it to power up no vibrate at all. When I couldn't get any of that to work the last ditch was to try disassembling and honestly even after I did that I still couldn't get it to responds until I used the power switch slider and after that it started back up. I'm just happy it worked.
I've been enjoying my TF300 since the month it was released, but in the past few months the battery stats have become less and less accurate. I was watching YouTube videos on it while it was docked and charging yesterday when it suddenly died, and I haven't been able to get it to boot since. Sometimes it will start to boot, but die half way through the boot animation, which implies that the battery isn't charging.
When I plug the charger directly into the tablet, it flashes orange twice and then does nothing. When I plug the charger into the dock, that shows green - so I assume the dock is fully charged. When I plug the tablet into the dock, it flashes red twice again.
The logical assumption from this is that my TF300 has stopped accepting or holding a charge. My question is, which part do you think I should try and replace first? I understand that the dock connector has separate pins for 5V and 15V charging, so maybe that's been bent or broken somehow...or the battery itself could be worn out...or the motherboard could have developed a fault. Has anyone had a similar experience to this? I don't want to buy a new tablet as there is absolutely nothing wrong with my beloved Transformer other than this!
I'm going to leave it plugged directly into a standard PC USB port for several hours tomorrow while i'm at work, to see if it will trickle charge that way. That would imply the charger is at fault, despite the green light from the dock when it's plugged in.
sort of same here
My thoughts are that the one battery is no longer seen by the tablet and the other is getting too much of a workout as a result.
We have possibly just lasted beyond it's expected lifetime - which is kind of dissappointing. I don't understand exactly, but we might troubleshoot this still.What rom or Firmware are you using? I am on straight CM11 with no other modifications. I am using the tablet docked al th time and th rom "sees" the two batteries but dies at about 50% of the one without touching the other. I'm pretty sure that it really only is using the dock battery and never seems to go to the tablet battery anymore. Wish I could fix it - will try to use it without the dock and see what happens.
It was running KatKiss 5.0.0 - I kept reminding myself to go and download the latest update but never got around to it.
After leaving it plugged into a standard 800mA charger all night and all day, it booted for about 20 seconds and then died again before it reached the lockscreen. It seems that the battery is either charging unusably slowly or not at all. I may have to start hunting for a new convertible!
jonty-comp said:
It was running KatKiss 5.0.0 - I kept reminding myself to go and download the latest update but never got around to it.
After leaving it plugged into a standard 800mA charger all night and all day, it booted for about 20 seconds and then died again before it reached the lockscreen. It seems that the battery is either charging unusably slowly or not at all. I may have to start hunting for a new convertible!
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Well mine is working fine disconnected from the dock - so it sees the Tablet battery and uses it now; I will use it until it needs charging and then try again - by attaching the dock and charging etc. Will yours work if just plugged in? - like a laptop with an old battery, does it still work but you are tied now to the power supply / charging cable? I have installed the latest "homebrew" Omni now to just get a new start on things and will continue to just use up the battery and see what happens next. My preference is to have vanilla CM but it seems the tablet battery was invisible. I hope by re-setting things and having a new Rom in place will give me a clean slate.
Sadly no, it doesn't run even when permanently tethered to the power supply. I think the battery has to report a minimum state of charge before it's allowed to turn on, and that's where it's failing in my case.
Batteries are back
I wish that I could tell you how - but I can't - the batteries are back to full functionality. I will tell what I have done and this might possibly help. I installed Omnirom with Lollipop and it worked but was very slow. Then I installed CM 11 back (then CM 12, then CM 11 again all with the appropriate GApps & SuperSU etc.) and it seemed to put things back in order. I did also install a battery calibration app which just deleted a file tracking the battery(s). Some where in there the batteries starting working properly - this involved more than a few re-boots and re-installs (dirty and clean). In all this mess lies a possible solution or maybe it was when I slammed it shut in frustration - this could all be due to a loose wire/solder joint too. The battery is following the "normal" process now of first draining the tablet battery to ~ 80-90%, switching out to the dock battery, then switching back to the tablet when the dock is drained fully.
@kjwaugh
I can't recharge my battery and I have CM-11-20150112.
My little led never turn on orange light.
My question for you is: Does your led turn on when you plug in the USB cable ?
I'm afraid I have broken some analog circuit inside the tablet or, I hope, only the cable.
Please let me know.