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Xperia broken? red light under the ON button

Guys, i think my xperia is broken
last night my battery was empty so no big deal i thought.
today i've connected it to the charger to charge and pressed the ON button.
when i pressed it, a red light under the ON button started burning.
i thought? wtf? mayby because it's emty or something.
but after more then 1 hour of charging it still doesn't do anything.. and now even the redlight doesn't show up!
does anyone know what to do?

renedis said:
Guys, i think my xperia is broken
last night my battery was empty so no big deal i thought.
today i've connected it to the charger to charge and pressed the ON button.
when i pressed it, a red light under the ON button started burning.
i thought? wtf? mayby because it's emty or something.
but after more then 1 hour of charging it still doesn't do anything.. and now even the redlight doesn't show up!
does anyone know what to do?
Click to expand...
Click to collapse
Hello dear friend, I sympathise with you I had this exact same problem and was worried sick for a day and a half that it was dead! the red light under the power button is the battery fail light (as far as i can tell) it goes on for example when you plug the charger in and remove the battery. I've found if you run the battery down to absolute minimum it almost seems like the X1 cant detect the battery any more and displays the red light. I fixed mine by removing and replacing the battery a few times and plugging it into the wall charger for a few hours. keep trying and dont lose heart, like I say it took me a day and a half (with a sleepless night inbetween

Also mine, but after five minutes it's wake up.
Try simply to remove battery, or performe a soft reset via hardware button with the stylus.

Let you X1 charge for an hour or 2 and it will start up again, guess this is when the phone don't get a enough power to start up.
(Guess it can indicate some other error as well but probably just lack of juice in the battery .. )

thanks guys..
it is still not working but i know that the phone it self is OK.
i wend back to the store and they switched the battery from another xperia.
it worked fine
i'm so happy right now. it's charging at the moment, but still not going on, well, i have to wait and see then.
again: thanks for the posts guys

Mind you... it might take a while! I had it connected to a cheap usb charger for a night (which wasn't good enough obviously) and it took me the better part of a morning to get it to life again with the SE charger. I find it most irritating that this sort of thing isn' t mentioned in the manual. At least not where I could find it. Things like a phone that doesn't want to start make you sweat horribly.

I have this problem with mine but still no luck
Been dead for weeks now.... Finding it hard to get a copy of the receipt too bah
Only had it a month too..

It's prolly one cell in the battery that are "broken".
Had that on my X1. There are 3 cells in the battery and if one of them doesn't work as it should, the battery only delivers 3-3.1 volt.
Your phone "wakes up" at 3.335 volt but dies at 3.1. I've been measure it myself.
My phone are now back in business with a new battery, a new batterycover and latest software. No problem if you have guarantee...
PS... Try to avoid one thing. Avoid heat in battery. Lithium hates heat.

McGilljam said:
It's prolly one cell in the battery that are "broken".
Had that on my X1. There are 3 cells in the battery and if one of them doesn't work as it should, the battery only delivers 3-3.1 volt.
Your phone "wakes up" at 3.335 volt but dies at 3.1. I've been measure it myself.
My phone are now back in business with a new battery, a new batterycover and latest software. No problem if you have guarantee...
PS... Try to avoid one thing. Avoid heat in battery. Lithium hates heat.
Click to expand...
Click to collapse
You are right, man.
Usually, if you discharge a battery till the very last drop, it can happen that:
A) one of the cell goes beyond its safety level, and it "breaks". That's unrecoverable, AFAIK.
B) the cells gets unbalanced, and you nedd several charge/discharge cycles to get them balanced and fully recovered.
Add to this that Usb charging is usually unable to wake up an almost totally drained battery. This won't happen with a normal charger, but Usb charging voltage is lower than normal (of course, it's usb not home plug!) so it has not enough power to wake up the dead battery. If you leave your device in charge for some minutes, it will eventually manage to wake the battery.
However, I noticed that the X1 has a bad power management. Usually my X1 low level battery threshold varies between 10% and 5%. One week ago, at 10% it just shut down and won't recharge, showing me the red light over power button. Removed battery 3/4 times and charged with home charger, it gets recovered. Try to plug the charger, remove the battery and insert it again, doing all this with the charger always plugged.
In my opinion, that's really annoying, I never know when it *really* has a low battery!

@ [email protected]
B) the cells gets unbalanced, and you nedd several charge/discharge cycles to get them balanced and fully recovered.
yeah.. i had that with my P990i (symbian uiq3) phone the batter went in 1 day to 50% now it still has 80%

this same thing happend to me last night, i just pluged it to a wall charger & waited for an hour good thing when i pressed the power button it came back to life. was worried then and now its all good.

i had this on my xperia a while ago i think its just the battery is extremely dead.
after an hour of being plugged it in it turned on again

Red Power button Led
Glad to find this info, the red light gave me the chills at first too. My phone blacked out while using TomTom 7.4 on a stock unbranded NL Rom, after it had given me low batt. warnings. Now it's in the 'home plug' charger, sipping juice on the red light... I hope it comes out of it soon. Anyway, I was wondering if anybody has ideas on checking battery cell failure? Or battery diagnostics of some sort? It would be a shame to use a crippled battery just because you don't know it's operating below its max capacity. By the way, I'm not part of the lucky bunch in possession of a multi meter...
EDIT:
As soon as I hit 'post' the notification Led's display charging! And the red light's off of course. Guess the first post brings some beginners luck, hehe. Anyway, thoughts regarding battery diagnostics etc are still welcome!

Encountered this and according to the helpdesk, it's cos the backup battery is empty so he advised me to charge the phone for half an hour without the battery, and then charge it with the battery after that. Didn't work. Called up the helpdesk again and he said for some, they've to charge (without the battery) for an hour. Ok, tried that. But still doesn't seem to be working. Gonna just leave it charging (with the battery) for a few more hours. If still can't guess I gotta bring it down to the service centre.

there is a backup battery in xperia???

leobox1 said:
there is a backup battery in xperia???
Click to expand...
Click to collapse
Remove your battery, wait 3 minutes, insert again the battery. If you have lost date & time info, no, there is no backup battery, otherwise yes, there is.

Well, anyway, sent my X1 for servicing. Over at the service centre, they tried to 'boost my battery' but couldn't get it working. So had to leave it there for them to work on it.

Just had this same problem, cleaned the battery terminals and hey presto...it's all good again..
Regards,
Astoroth

Sent my X1 to the service centre with regards to this issue and they replaced the motherboard. They'd tried boosting the battery but no use.

Same problem.. this is what happened
ok, I came back from work an as usually i plug the charger in my xperia, the baterry left was like 30%, ok, then, I connect in the 3.5mm an autput for a big Radio so i can listen full music... so.. in a while, in my house there was a power down.. really fast one... like... 0.01secs... (like down and up really fast).. in that change my cellphone went down =S.. and sice today never get up ='(... there's just that red light in the power button each time I plug the charger on... any help?.. is the same problem of the topic? :S.. plzzz.. i dont have even a month with this pretty cellphone =( poor baby

Xperia SP wont respond (no flashing problem or root problem)

Hello my Xperia Sp just run out of battery and shut down.I pluged it in saw the sony logo and when i tried to turn it on it would not respond.
The only thing it did was kept the red light on (indicating charging).I tried pressing the off button for over 30 seconds with no results. Not it is stuck and i cant do anything about that.
Help please.

Nevermind the problem got fixed by itself.
The battery (about 2 % run out and the phone kinda reseted itself.It opened just fine.
So if anyone else gets this problem just let your battery drain itself.

jackaros said:
Hello my Xperia Sp just run out of battery and shut down.I pluged it in saw the sony logo and when i tried to turn it on it would not respond.
The only thing it did was kept the red light on (indicating charging).I tried pressing the off button for over 30 seconds with no results. Not it is stuck and i cant do anything about that.
Help please.
Click to expand...
Click to collapse
Just to confirm you plugged it into a mains supply? USB from your computer to phone charging is not enough to kick start a totally dead battery.
If you have plugged it in to a wall socket and it still doesn't work, give it some time.
I think the battery and the phone's software combine to stop the phone operating at unsafe voltages, the safe operating range for a standard lithium ion batteries is 3.2-4.2 volts (though android may be different). They spend most of their time at 3.7 volts though and this is why they are described as such when you buy them separately.
If, for some reason your phone's software thinks your battery is at 3.1 volts, it won't do anything until it thinks it's at 3.2. Similarly if a protected battery is taken below 3.2 volts it won't provide any power until it hits its minimum voltage. In theory your phone should have cut out before the protection cut in, but bad stuff happens to good people.
Sometimes a protected battery gets drained so much that the tiny flow of electricty required to power the protection circuit stops and as the ultimate failsafe, protected batteries stop working when this circuit is not functioning.
(I'm talking about standard batteries here, not necessarily phone ones)
Sometimes cheap basic chargers won't be able to get such batteries working, but better chargers are able to send tiny trickles to a battery to start the protection circuit and make such batteries charge again. I'd be very surprised if android didn't take this into account and have some way of ensuring over-discharged batteries with a tripped protection circuit can be charged. That said I'm not sure whether the protection is all software on mobile phones?
Like I say give it some time - getting that first .1 of a volt can take a while when the battery is totally flat. If it hasn't changed after at least 2 hours then I'd worry.

Parkside said:
Just to confirm you plugged it into a mains supply? USB from your computer to phone charging is not enough to kick start a totally dead battery.
If you have plugged it in to a wall socket and it still doesn't work, give it some time.
I think the battery and the phone's software combine to stop the phone operating at unsafe voltages, the safe operating range for a standard lithium ion batteries is 3.2-4.2 volts (though android may be different). They spend most of their time at 3.7 volts though and this is why they are described as such when you buy them separately.
If, for some reason your phone's software thinks your battery is at 3.1 volts, it won't do anything until it thinks it's at 3.2. Similarly if a protected battery is taken below 3.2 volts it won't provide any power until it hits its minimum voltage. In theory your phone should have cut out before the protection cut in, but bad stuff happens to good people.
Sometimes a protected battery gets drained so much that the tiny flow of electricty required to power the protection circuit stops and as the ultimate failsafe, protected batteries stop working when this circuit is not functioning.
(I'm talking about standard batteries here, not necessarily phone ones)
Sometimes cheap basic chargers won't be able to get such batteries working, but better chargers are able to send tiny trickles to a battery to start the protection circuit and make such batteries charge again. I'd be very surprised if android didn't take this into account and have some way of ensuring over-discharged batteries with a tripped protection circuit can be charged. That said I'm not sure whether the protection is all software on mobile phones?
Like I say give it some time - getting that first .1 of a volt can take a while when the battery is totally flat. If it hasn't changed after at least 2 hours then I'd worry.
Click to expand...
Click to collapse
The phone was pluged in the wall socket.After this i tried to turn it on (while pluged) nothing happened so i unpluged it to press the off button (i upluged it because i could not reach the button because i had the case on) but the red light ( at the bottom of the device indicating charging) did not turn of.So i tried to reset the device by pressing the off button but i waited for almost 30 seconds (while pressing it) and nothing ... not even a vibration.So i left the phone away with the light stick on till the 1 % left was drained and the phone shut down due to lack of power.
So then i pluged it back in to the wall socket and it started charging again and so i turned the device on.This time it responed and opened up .Now nothing is wrong

It happened again.... i dont know the problem but the solution was the same...

jackaros said:
The phone was pluged in the wall socket.After this i tried to turn it on (while pluged) nothing happened so i unpluged it to press the off button (i upluged it because i could not reach the button because i had the case on) but the red light ( at the bottom of the device indicating charging) did not turn of.So i tried to reset the device by pressing the off button but i waited for almost 30 seconds (while pressing it) and nothing ... not even a vibration.So i left the phone away with the light stick on till the 1 % left was drained and the phone shut down due to lack of power.
So then i pluged it back in to the wall socket and it started charging again and so i turned the device on.This time it responed and opened up .Now nothing is wrong
Click to expand...
Click to collapse
You left the phone in the charger to drain or not? If i put the charger off then red light isn't opened..
Also, how many hours did you wait?

billaras481 said:
You left the phone in the charger to drain or not? If i put the charger off then red light isn't opened..
Also, how many hours did you wait?
Click to expand...
Click to collapse
It took about half an hour because of the battery level being low.

Guys im having the same problem.. anyone who can help will be appreciated.

TF701T suddenly turned off and won't turn on.

Hello,
I was using my tablet Transformer TF701T for the first time in a couple of months today. It had 5% battery or so, so the keyboard dock was also plugged into the wall charger and everything was fine.
Suddenly, during use, the tablet just went totally blank; not even the power LED is on (as it normally would be if the charger was plugged in).
The orange light is still on the keyboard dock, so that is charging. (In fact, after a few hours of being plugged in, the keyboard dock is now green)
I have tried holding down the power and volume down buttons for periods of time, but this has done nothing. I have tried plugging the charger into the base of the tablet where it docks. This did not make it light up either. (The charger has been plugged into the base of the charger all night but to no avail)
Any advice would be greatly appreciated.
Many thanks,
Tom.

Solution
I have the same problem here. I don't know yet if it is a physical problem or a software one.
Here is my explanation and test.
I think at a certain point, there is a ''bug'' and the screen goes black and doesn't turn back on. That said, the tablet is still on. If you manage to press power, unlock by sliding, and lower/raise the volume, you should hear the DING DING sound. If it works for you, it confirms my theory.
The only way I found to fix that problem is to let the battery reach 0%. It might takes 1 week maybe. After that, connect a charger and press power quickly, you will see the red battery indicating the charging of the tablet. From that point,,, I leave it charge 30-80% then power on again. It works fine until the next ''ceasure''.
I don't know if it is related to usage. Pressing power multiple time, or reaching a certain temperature or usage level.
I've also read solutions with putting 2 cables on the battery to short it. There are also applications that can be remote triggered to ''burn'' the battery and empty it faster. I regret I didn't bring that back. I'm also wondering if cianogen could fix that. No more updates or support coming soon, although if I saw a conference in singapore showing compatibility with the new kitkat os.
anyway good luck, I'll keep my researchs.

NofxMaster said:
If you manage to press power, unlock by sliding, and lower/raise the volume, you should hear the DING DING sound. If it works for you, it confirms my theory.
Click to expand...
Click to collapse
I'm afraid that did nothing. Hearing no response whatsoever!
I'll keep experimenting. I can't send it back to ASUS as I don't have the serial number.

Dead HD+: battery problem?

Hello all!
I have a Nook HD+, which has sat unused for about a year. Predictably, it does not turn on.
When I connect it to the power supply (tried with multiple supplies and cables), the LED lights up green; after 2-3 seconds, it turns orange and I can hear the voltage converter whine; after a few more seconds, the LED turns off, and the whine stops.
Pressing the power button just causes the same sequence to repeat. Keeping it pressed has no effect.
I have left it connected to the power supply for several hours, but nothing changed.
I have opened it and unplugged the battery. Connecting the power supply with the battery unplugged results in the LED flashing green/orange. Re-plugged the battery, and I'm back at the situation described at the beginning.
Any suggestion? Apart from "sell it for parts", I mean

hold power button for 10 seconds - it will either turn off or turn on the device.
hit on power button once again - hold it again for 10 seconds.
Hope it helps a bit.

yus__ said:
hold power button for 10 seconds - it will either turn off or turn on the device.
Click to expand...
Click to collapse
Thanks for the suggestion, but it didn't work.
Regardless of how long I keep the power button pressed, the LED goes through the same sequence: green for 3 seconds, oranngo for 2 seconds, then turns off.

Looks like your battery is dead indeed. You could try to test its voltage using a voltimeter. How many contacts does it have? I think there are battery replacement being sold.

I had problems with my Nook HD+ last week. Though not as extreme as your issue, I left mine unplugged for a few weeks and it died completely. It didn't want to resurrect. Plugging it only showed the battery icon...even after two hours.
Left it on charge for 8 hours while I was off at Uni. Came back to it fully charged. So I would suggest at least leaving it on charge for a half day.
I tried to look into a replacement battery and they are apparently impossible to find...Hummingbird batteries are everywhere on eBay and specialty electronics sites. (I couldn't even find an HD+ battery on Alibaba or cheap Chinese sites.)
I wondered whether the aftermarket 4000mAH Hummingbird battery can be retrofitted. I haven't looked but given a soldering iron and ingenuity, I'm sure it can. A battery is a battery...given the voltage is right and 4000mAH is the HD+'s rating anyway. If you ventured to take that route, let me know how it goes.
(Also, I ended up finding a fix for the battery instantly dropping to 1% problem, which is why I came here to make a thread sharing the news for anyone else who has suffered. Off to do that now )

teddyspaghetti said:
I had problems with my Nook HD+ last week. Though not as extreme as your issue, I left mine unplugged for a few weeks and it died completely. It didn't want to resurrect. Plugging it only showed the battery icon...even after two hours.
Left it on charge for 8 hours while I was off at Uni. Came back to it fully charged. So I would suggest at least leaving it on charge for a half day.
I tried to look into a replacement battery and they are apparently impossible to find...Hummingbird batteries are everywhere on eBay and specialty electronics sites. (I couldn't even find an HD+ battery on Alibaba or cheap Chinese sites.)
I wondered whether the aftermarket 4000mAH Hummingbird battery can be retrofitted. I haven't looked but given a soldering iron and ingenuity, I'm sure it can. A battery is a battery...given the voltage is right and 4000mAH is the HD+'s rating anyway. If you ventured to take that route, let me know how it goes.
(Also, I ended up finding a fix for the battery instantly dropping to 1% problem, which is why I came here to make a thread sharing the news for anyone else who has suffered. Off to do that now )
Click to expand...
Click to collapse
I had the same issue, I had to leave mine unplugged for like 24 hours and then leave it plugged in for a whole day. I'm afraid to let it turn off now.

Run a Nook HD+ without a battery.

I bought my Nook HD+ in 2013 and it has been a great companion all along. About two years ago, I noticed that the battery was not what it used to be, requiring charging too often. Last year, I installed LineageOS on the Nook.
About three months ago, something happened to the battery so that the Nook would turn on and be usable only if the main power was connected. If I switched off the charger, the Nook would immediately shut down - and by shut down I mean it would just blink off, not shut down over a few seconds. Also, in the shut off mode, it would lose battery a lot, like 20 to 30 percent in a day, without any usage.
Then, about a month back, I forgot to charge it for three straight days and now it won't turn on at all. When I connect the charger, the charging light turns from green to red, and stays there, indicating the battery is charging, and the back of the Nook also becomes hot, but whatever I do, it doesn't turn on. When I press the power button, the screen comes on and shows the charging icon for a second or two and then goes off. I've left it charging for a couple of hours, maybe six or eight or so, but it still won't turn on.
If I remove the battery and turn on the main power, the charging light keeps blinking green and red over and over. So, is there any way to use the Nook without the battery, running it off the mains power only? And if there isn't, is there any way to turn it back on? I've already gone through the threads here and tried some of the things but nothing has worked. I don't have a higher power wall charger, and it is not possible to go out in the present condition, what with the lockdown and all.
Please help.

Hi
I also have a Nook HD+ that I'm still playing with
IamX00T said:
I bought my Nook HD+ in 2013 and it has been a great companion all along. About two years ago, I noticed that the battery was not what it used to be, requiring charging too often. Last year, I installed LineageOS on the Nook.
Click to expand...
Click to collapse
I also installed lineage on mine a year or two back, but I've had random issues with mine. I'm going to try to reset and reinstall it in the near future (like, maybe this weekend or next).
About three months ago, something happened to the battery so that the Nook would turn on and be usable only if the main power was connected. If I switched off the charger, the Nook would immediately shut down - and by shut down I mean it would just blink off, not shut down over a few seconds. Also, in the shut off mode, it would lose battery a lot, like 20 to 30 percent in a day, without any usage.
Then, about a month back, I forgot to charge it for three straight days and now it won't turn on at all. When I connect the charger, the charging light turns from green to red, and stays there, indicating the battery is charging, and the back of the Nook also becomes hot, but whatever I do, it doesn't turn on. When I press the power button, the screen comes on and shows the charging icon for a second or two and then goes off. I've left it charging for a couple of hours, maybe six or eight or so, but it still won't turn on.
Click to expand...
Click to collapse
I know that, if the tablet runs dead, you _have_ to put it on the original Nook wall charger and let it sit overnight... mine just went dead a couple of days ago and I tried just plugging the cable into a generic USB charger, but it didn't charge. I then remembered this and plugged it into the Nook charger and it charged overnight.
If I remove the battery and turn on the main power, the charging light keeps blinking green and red over and over. So, is there any way to use the Nook without the battery, running it off the mains power only? And if there isn't, is there any way to turn it back on? I've already gone through the threads here and tried some of the things but nothing has worked. I don't have a higher power wall charger, and it is not possible to go out in the present condition, what with the lockdown and all.
Please help.
Click to expand...
Click to collapse
I have no idea about this part... I've never taken mine apart (I wanted to buy a replacement battery a few years ago but they ran out and I never found more). Update: I just searched and there are a few battery replacements listed with Google search, I just don't want to pay 40.00 to 50.00 when I can buy a new tablet for a little more than that.
I usually just leave mine plugged into my bedside clock and it keeps charged, or if I unplug it plug it back in within a couple of hours.
Hope you find an answer.

better off buying a new tab