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Any body have this issue. When ever the phone is on and I need to pull the battery for whatever reason, it will not turn on when I put the battery back in.
If I wait and turn off the phone before taking out the battery it is fine though.
How I get it back on is a problem itself. It would take me upwards of 20 min of just pressing the power button x amount of time, removing the battery and charging it.
This isn't even happening when I am out of battery. I would have 90% left
Also sometime it looks like it tries to turn on, display the black screen with HTC logo and displays the radio... then it just keeps on rebooting itself. Never actually fully booting.
aeo 37 said:
Any body have this issue. When ever the phone is on and I need to pull the battery for whatever reason, it will not turn on when I put the battery back in.
If I wait and turn off the phone before taking out the battery it is fine though.
How I get it back on is a problem itself. It would take me upwards of 20 min of just pressing the power button x amount of time, removing the battery and charging it.
This isn't even happening when I am out of battery. I would have 90% left
Also sometime it looks like it tries to turn on, display the black screen with HTC logo and displays the radio... then it just keeps on rebooting itself. Never actually fully booting.
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sounds like you are abusing your phone. dont mash buttons that many times, you are hurting it.
take the battery out, hold the power key for 10 seconds, let go. then put battery in, and press power key once.
if this doesnt work, get an iphone
I've read a few posts similar to this.
Solution: Once battery is out, leave out for 15-30 mins, reinstall battery WITHOUT turning device on, plug in power supply, wait an additional 5-10 mins before turning back on. Works for others.
OK will try this. Is there a reason why this always happend when I pull the battery though?
Also, check your pins. One of them may be bent.
donkeypunch85 said:
I've read a few posts similar to this.
Solution: Once battery is out, leave out for 15-30 mins, reinstall battery WITHOUT turning device on, plug in power supply, wait an additional 5-10 mins before turning back on. Works for others.
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Ok this way seem to work. Thanks
There wasn't any bent pins on it though. I thought that this was just one of the flaws of running Android on the HD2.
Because I never had an issue with pulling the battery and it not powering on while it was on the stock WIMO
thanks guys! it worked.
why do people continue to pull the battery? i think i've ever only pulled the battery once in the 3 months i've been flashing roms and testing builds. reset buttons always works for me. don't want to get them pins bent!
Hello everyone, I'll tell you the ultimate experience even if it is not the first time that happens.
2 days ago I left the nexus to 46% of battery, the next day I found it turned off and the device would not turn on.
by trying to connect to the power turns on but the display flickers constantly and makes a sound as if he were about to explode.
if I leave a little in office and try to turn it on, it lights up with difficulty and then it shuts down suddenly emitting sound louder and have vertical lines and horizontal time.
I'll post a video to make you understand better.
the problem is not to download the battery or something more serious?
sorry for my enghlis, it's made by google!
video:
https://www.youtube.com/watch?v=HLmB8oYIZDQ&list=UUzN7W_39t1nVjuznllixPIg&index=1
If you leave it plugged in and don't touch it for a while, does it eventually do anything? Just sounds like the battery is dead to me, although not sure about the weirdness with screen etc.
Leave it plugged in for a while on the original charger/cable and if it doesn't boot up right after 30-60 minutes of charging, you might have to warranty exchange it.
if I leave the tablet plugged into the power outlet for a few minutes (maybe 10) everything is back to normal.
the strange thing is that this problem occurs when the battery drops below 20%
di4b0liko said:
if I leave the tablet plugged into the power outlet for a few minutes (maybe 10) everything is back to normal.
the strange thing is that this problem occurs when the battery drops below 20%
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Good to hear! My guess is that it didn't have enough power to really power on, which I don't like in various ways.. First it might mean the battery was overly discharged (when your battery is at 0%, it's still well above minimum LiPoly minimum voltage, but I question that in your case for example) or that something else is kooky.
I'd say charge it to 100% and use it normally, and let it get down to 5-10%, lower if you like... If it continues to behave okay, maybe just a fluke. If it freaks out below 15% or something, warranty it.
After watching that video I would say return it. That looks bad man! Also, what is on the end of your power cable? Looks like a piece of wire or tape or something?
Shot straight outta my Shostocked SGH-I777 Rocketship
Pretty self explanatory. It was dead for a couple of days, I put it on the charger for almost the whole day, now I get no picture, but the backlight is on when I hold the power down a minute. I bought it at walmart, doubt I have the receipt, and didn't get any extended warranty. Is there a way to fix this issue?
I've got the same issue. I was playing Tupsu, when suddenly my n7 rebooted and there was no picture, just semi-strong backlight. When the tablet died, the battery was about 45-50% and I was charging it through notebook's usb port (original n7 cable). I tried to turn it off, but pressing and holding the power button only made it reboot once again (i assume it was rebooting, since the backlight was turning off and on in a second). I've tried it many times, with tablet plugged into wall/usb charger, and even with the power+volume up/down combination, it would still behave the same way. However sometimes after rebooting there was not only backlight, but also thin, mostly white, horizontal lines, appearing in random places of the screen (appearing and disappearing after like 50-100 ms). It would stop only after a reboot, and happened every 5-10 reboots.
I've decided to let the battery die to see if it changes something, and as you may guess - it didn't. It died estimately after 2 or 3 hours. Now it's all the same, except for when I plug it to the charger, there's only a very low backlight (still no picture) and it's blinking... It also makes this continuous "electricity-related" (sorry, I don't know what's the word to call it ) sound. After I press the power on, or let it charge for 1-2 minutes it boots up, and there's just a semi-strong backlight, like earlier.
It's a refurbished 8gb n7, which I got 5 days ago from the polish Asus online store. Oh, and the speakers weren't 100% fine, if it changes something. They were fine at first, but after i plugged headphones in and out, they were making cracking sounds when the volume was over 50% or something like that. Is there any hope I can fix it myself?
edit: the android ver. is 4.2.2, not rooted
the device is getting warm on the left side when being charged, or just turned on...
Have you tried pulling the battery for a couple of minutes?
Sent from my Nexus 7 using Tapatalk HD
Nope, i don't want to mess with the hardware since i've bought it only few days ago... I'm afraid it may leave some traces of being opened, i'm not willing to take the risk.
You won't leave a trace pulling the battery. Just use a guitar pick or credit card and run it round, the back comes off very easily.
Sent from my GT-I9000 using Tapatalk 2
Yeah that is definitely worth a shot. Just pull the battery.
Ok, I did it.
Didn't change a thing >:[
btw. I didn't actually pulled off the battery, i've just disconnected it - it doesn't make a difference, does it? and another thing - the backlight was turning on immediately after connecting the battery... with these randomly popping horizontal lines.
I've got this too!
wujekandrzej said:
Ok, I did it.
Didn't change a thing >:[
btw. I didn't actually pulled off the battery, i've just disconnected it - it doesn't make a difference, does it? and another thing - the backlight was turning on immediately after connecting the battery... with these randomly popping horizontal lines.
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I've got this too! Pulling the battery does nothing. Last time it just fixed itself, now nothing.
Worried I'll have to take mine back.
How did that 'fixing itself' happened to you if i may ask? And how long did it last?
Your tablet has gone into sleep mode to protect the battery from further damage due to its low level of charge. What you're seeing is by design, as complete discharge of a lithium based battery is bad for it. You should never, ever, let it sit dead for a couple days. If you do discharge it to the point of shutdown again, immediately put some sort of charge on it, as waiting to long will cause the battery's protection circuit to fail completely. Best practice is to not let your device go to the point of shutdown, but rather to plug it in when not in use. Your battery will have a longer lifespan.
Plug your N7 into the charger and immediately press power and volume down to get into the bootloader. Once there, use the volume key to scroll to Power Off Device and then press the power button. After it powers off, unplug it and then plug it back in. It should then charge normally.
You seem not to have read my posts at all. When it happened, the battery was about 45-50% and it was plugged into the laptop's usb port. It suddenly rebooted and there was no more picture, just the backlight - and it lasted for like 2-3 hours (maybe even longer)! Can a completely discharged battery power the backlight for this long? After it turned off at last, i put it on charge and i've tried the power+volume method and it didn't do anything (btw. i already wrote about it)... then i let it charge for like 5-6 hours and it didn't change anything except for the fact, that the battery was evidently charged, because the backlight again lasted for few hours.
wujekandrzej said:
You seem not to have read my posts at all. When it happened, the battery was about 45-50% and it was plugged into the laptop's usb port. It suddenly rebooted and there was no more picture, just the backlight - and it lasted for like 2-3 hours (maybe even longer)! Can a completely discharged battery power the backlight for this long? After it turned off at last, i put it on charge and i've tried the power+volume method and it didn't do anything (btw. i already wrote about it)... then i let it charge for like 5-6 hours and it didn't change anything except for the fact, that the battery was evidently charged, because the backlight again lasted for few hours.
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Actually, I was addressing the OP without realizing that this was a zombie thread.
To answer your question though... yes, when in sleep mode the battery can still turn on the backlight and keep it powered for some time due to the low power requirement of a black screen. Many users that have found themselves in sleep mode actually have their tablets enter into a prolonged cycle of bootloops. From the sounds of it, your device seems to have, for reasons unknown, put itself to sleep.
Anyway, I digress... I know you've stated you've tried various combinations of the power and volume keys. Have you attempted holding all three buttons for approximately 30-40 seconds while the tablet is plugged in? If it that will force it into the bootloader, you can follow the steps that I posted to get it up and running again. If not, then it seems your best available option is to seek an RMA from ASUS. Given your speaker issue, I'd send it back regardless- you shouldn't be expected to deal with battery and speaker issues after only five days.
najaboy said:
Actually, I was addressing the OP without realizing that this was a zombie thread.
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Ok, then i'm sorry for few harsh words
najaboy said:
Anyway, I digress... I know you've stated you've tried various combinations of the power and volume keys. Have you attempted holding all three buttons for approximately 30-40 seconds while the tablet is plugged in?
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Yep. Many times. And even longer than a minute.
Anyway, I'm going to contact their crappy support. Thanks everyone for trying to help.
Hello, I have a 16gb, bought from google Nexus 7, and three days ago I was using it, 55% of battery, connected to car charger when I put it to sleep and let it charge, after a couple of minutes I picked it up and it wouldn't turn on. I noticed that the screen was on, but black, and nothing that I did would make it back on or off.
After an hour or so it was off, to never turn on again... Already tried holding power, power + down, power + up + down for 30 seconds, 1 minute...
Let it charge overnight, it only heat up very much, but no signs of life...
Any help?
I bought it in the USA and now I'm on Brazil and have no warranty...
iurylima said:
Hello, I have a 16gb, bought from google Nexus 7, and three days ago I was using it, 55% of battery, connected to car charger when I put it to sleep and let it charge, after a couple of minutes I picked it up and it wouldn't turn on. I noticed that the screen was on, but black, and nothing that I did would make it back on or off.
After an hour or so it was off, to never turn on again... Already tried holding power, power + down, power + up + down for 30 seconds, 1 minute...
Let it charge overnight, it only heat up very much, but no signs of life...
Any help?
I bought it in the USA and now I'm on Brazil and have no warranty...
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I'm not electrical engineer, but it sounds like your charger did something to mess it up. If I was in your position I would probably disassemble mine and, while I don't know if this is possible, disconnect the battery, and plug in the USB to the charger that you got when your Nexus. Whether this will permit your device to boot, and allow you to determine whether the battery is fried is unknown to me, maybe someone else who has more hardware hacking knowledge could give some input here. Found this link, might be helpful.
http://www.ifixit.com/Teardown/Nexus+7+Teardown/9623/1
necropuppy said:
I'm not electrical engineer, but it sounds like your charger did something to mess it up. If I was in your position I would probably disassemble mine and, while I don't know if this is possible, disconnect the battery, and plug in the USB to the charger that you got when your Nexus. Whether this will permit your device to boot, and allow you to determine whether the battery is fried is unknown to me, maybe someone else who has more hardware hacking knowledge could give some input here. Found this link, might be helpful.
http://www.ifixit.com/Teardown/Nexus+7+Teardown/9623/1
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Yes, it is possible to remove the battery, but I'm having trouble removing it... It seems that it's glued to the chassis... When I plug it to charge I can hear a very discrete humming noise... it's normal?
No other help?
Asus put a protector in the software, any time this happens hold the power button down for exactly 30 then it should boot up.
Sent from my Nexus 7 using xda app-developers app
already tried ;/
There is a bit of a difference between a standard AC charger and a DC charger. The biggest issue with car chargers is that you cant always regulate the voltage. Its not uncommon to have surges when things requiring electrical. I have heard (and seen) that Asus devices are particularly sensetive to this. I had an Asus Transformer Infinity that failed to boot ever again after "incorrectly" charging the device (that was Asus' words, not mine).
Tried a good battery... no show
Unrelated to any custom roms ( I hope this is not offtopic )
S10+ All of a sudden went black and now wont turn on
Vol Down + PWR does not work
PWR 30 sec does not work
Phone was running Android 11 stock.
This morning it behaving strangely ( some app were crashing ). It had no water damage, no mechanic damage of any kind.
After trying to run Strava before starting my run it went black with no way to get it back.
Sitting on the charger for few hours by now with no sighs of life.
Wireless charging - so sighs of life.
Any ideas what can I do with it?
Thank you!
Checked with USB power meter when phone connected to charger:
It consumes 50mA, no difference when Power or any other button combination pressed....
Maybe a battery or mobo failure if it's completely nonreactive ie no sounds or images when plugged into charger.
Try a known good charger/cable.
You could let it sit until the battery completely self discharges and hard resets, but if it's near 100% that would take years with no load.
Oh, I hope this is not mobo I can fiddle with bat but not with mobos
Tried again on wireless charger, charger reacted as if phone is charging. So phone and charger are talking to each other. But still no signs of life. Will leave it charging overnight...
There is a strong suspicion that charge IC is gonsky
Will try to fix it myself, this is going to be fun
mobilemodding.info said:
There is a strong suspicion that charge IC is gonsky
Will try to fix it myself, this is going to be fun
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If it's a multilayered PCB be very careful as they are easily damaged by heat/poor technique. If you don't have experience working with surface mount components and flat packs this isn't the place to learn.
Use lead based rosin core solder only as it flows much better than no lead crap and at lower temps.
Guys! After some time of pokin around I have fixed it!!!!
Check this out
Had to make a FrankenSamsung...
mobilemodding.info said:
Guys! After some time of pokin around I have fixed it!!!!
Check this out
Had to make a franketsamsung...
Click to expand...
Click to collapse
Balance Herr Frankenstein, balance... K.I.S.S.
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