I've had this phone 3 years and it worked well. It's an unlocked ATT phone so no OTA updates other than the standard app updates. It's on Lollipop 5.1. Been working perfectly fine until yesterday, I was watching the CBS app, when the phone rebooted. Now it's stuck on a boot loop and initally went to optimizing apps which it rarely finishes but the times it does, the phone just powers off. It then got into another loop later last night where it'd get to the Kyocera logo then reboot over and over. I let it do that until the battery died 2.5 hours later. Then I kept attempting to boot until the batter was entirely drained to the point it wouldn't attempt to power up any more.(battery is not removable on this model). I've now charged it up, trying to enter recovery mode with power+volume down. That doesn't seem to register. Tried volume up+volume down+power with no effect. Now after charging, it will do the reboot loop mentioned earlier to the Kyocera logo. If I plug it into a charger, it will go to the optimizing apps portion and repeat the above. At the optimizing apps screen, if I unplug the charger, the phone powers off immediately. It appears to be holding a charge according to the charge indicator and the fact that I can try to boot over and over unplugged. Any suggestions? Phone wasn't dropped or damaged in anyway. Very weird what could have happened.
An update: Phone finally got past the "optimizing app" phase last night sitting on the charger. Out of no where the phone booted completely. However, it only works while plugged in. If I remove the charging cord, the phone shuts down after about 2 seconds. Booting without charging cord results in the same boot loop. I've considered the battery has failed however when plugging in the charger, battery shows 100% and it will decrease appropriately over time. I'm thinking there must be a hardware issues at this point. Somewhwere in the charging/power circuit. Any other suggestions?
Last update I guess. I was able to keep the phone up and booted as long as it was plugged into a wall charger. PC USB was not enough. I managed to grab my photos etc. thankfully. Factory reset the phone from the settings menu. Unplugged from charger, ran for about 2 minutes. Still said 99% charged, then went into boot loop again. Phone still shows near full charge if you let it run for awhile and decrements the charge state appropriately as time goes on. However, i guess this 3 year old phone is toast. No known reason for it to fail unfortunately. Thought I'd share the experience if anyone else has this issue.
djhurt1 said:
Last update I guess. I was able to keep the phone up and booted as long as it was plugged into a wall charger. PC USB was not enough. I managed to grab my photos etc. thankfully. Factory reset the phone from the settings menu. Unplugged from charger, ran for about 2 minutes. Still said 99% charged, then went into boot loop again. Phone still shows near full charge if you let it run for awhile and decrements the charge state appropriately as time goes on. However, i guess this 3 year old phone is toast. No known reason for it to fail unfortunately. Thought I'd share the experience if anyone else has this issue.
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I have the same exact problem. It started the crazy booting process in my pocket, and I did all the same things you did. Factory reset didn't correct the problem, so I'm think the battery has had a stroke. Sine your problem and my problem are very close to the same time frame, our phones are also probably about the same age, and its a quality control issue. Not bad quality control, just that these batteries were designed to last X number of months or cycles, and probably they died. Too bad, because my E6560 is the very best cell phone I have ever owned. Built like a tank and thank God for that.
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So there is another thread sort of like this a bit below this one, but it's not quite the same situation, so I figured I'd make my own thread. My gf's tf101 has been working fine for the last couple of months, and then a couple of days ago, she found that as soon as she unplugged the tablet, it would shut off instantly. Once it's plugged back into the charger, it will boot and work fine. But, it will only work at all when plugged into the charger. When removed, no matter how long you hold the power button down, it won't turn on. I tried plugging it into the computer, and when I press the power button, it will flash the boot screen for about half a second, and then dies again. Keeps doing that, and will not stay on. Any suggestions, before an RMA? Anything to try?
Thanks.
What is the battery level showing when it is plugged in and on? Also check it with the Dual Battery Widget to see what that reports for battery charge/
I would back up all the data and apps, back up any important files and try a factory data reset. If that does not help, I would send it in for repair.
Ok, I was thinking about trying a factory reset next. The tablet shows 99% battery life left.
UK Nexus 5, recently OTA'd to 4.4.3, totally stock.
Forgot to put the phone on charge last night, found it dead this morning. Put it on charge for a bit, had to take it off charge to use it only for it to die shortly later. Plugged a usb cable in to charge, phone would loop and not boot properly. It would get to either the Google logo or the Nexus animation. Held vol- and the power button but couldn;t select 'Power Off' in time from the boot menu as it would just reboot itself.
Got home this evening, plugged in the proper charger. It looped for a while, but now I've got it to boot where I could choose to Power Off. It's now on charge where it started booting/looping again once, but is now sat charging properly. I'm not sure if all this weirdness is caused by the battery being drained completely. I'm suspicious of the power button. I banged the phone around the button in case it was stuck and blew around the edges just before it started stopping looping.
Any insight welcome.
Thanks
UOTE=thecapsaicinkid;53377926]UK Nexus 5, recently OTA'd to 4.4.3, totally stock.
Forgot to put the phone on charge last night, found it dead this morning. Put it on charge for a bit, had to take it off charge to use it only for it to die shortly later. Plugged a usb cable in to charge, phone would loop and not boot properly. It would get to either the Google logo or the Nexus animation. Held vol- and the power button but couldn;t select 'Power Off' in time from the boot menu as it would just reboot itself.
Got home this evening, plugged in the proper charger. It looped for a while, but now I've got it to boot where I could choose to Power Off. It's now on charge where it started booting/looping again once, but is now sat charging properly. I'm not sure if all this weirdness is caused by the battery being drained completely. I'm suspicious of the power button. I banged the phone around the button in case it was stuck and blew around the edges just before it started stopping looping.
Any insight welcome.
Thanks[/QUOTE]it's not the power button. I have had this happen to, I thought it was a bug in TWRP, it usually only happens when the battery is low, or wait a minute no it doesn't happen when the battery is low for me it happens when the phone gets warm because I've been flashing something over and over in TWRP.usually I leave it in TWRP for a little bit then when I hit power of it actually stays off as long as I'm not charging it. I am dictating this using voice to text hence the mistakes and forgiveness backspace delete backspace
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Something I actually learned from paintball, a low battery makes technology go nuts. My Nexus 5 bootlooped with a low battery. It also said it stopped charging and basically acted like an overdramatic child with no cookies. After an hour on charge everything was good to go.
Background: I had my completely stock Nexus 5 on the charger for around an hour. When it got near 100%, it locked up for about 5 seconds and powered off. It wouldn't charge or power on again until 2 days later where it would power up but not charge. It could go to the bootloader/recovery but it would still shut down. The charger used won't charge anything anymore, it may have been a power surge that messed it up.
I replaced the battery and the system is still unable to maintain power but recovery and the bootloader are stable (just formatted the cache and the phone did not power off, took around 15 minutes). Now it won't power up again.
Any idea what the issue could be? Could it be corrupted data?
First, try another cable and charger.
Also, make sure you have enough juice on the device first, reflash stock firmware with fastboot and see if the issue remains.
If you successfully flash your stock firmware and use another known working cable and charger and it's the same.... Then unfortunately it could be a hardware issue.
Thanks for the reply.
Unfortunately, that didn't bring my N5 back to life. I'm think a circuit may be fried on the motherboard but I don't have a real way of judging that at the moment.
Any chance you might be able to guess what the hardware issue could be? I'm mainly trying to save the data on my phone and I'm not against taking the phone apart to do that.
Update: I took the phone to a Sprint store and a technician looked at it. When the tech plugged it into the charger, the phone LED was flashing red with no charging screen. It eventually booted up and shut down. Later that day, I could see my notifications (Pushbullet is a wonderful app) and noticed the phone stayed on consistently. He said everything was fine and their formal report didn't mention any sort of damage to the phone that they could find. Later that same day, it died again. Today, I decided to completely wipe and load 5.1 to the phone. It stayed powered on through the whole flashing process (bootloader unlock and individual partition flashes) but shut off during "optimizing apps". Considering it powered off in the system, I'm thinking the issue is with the RAM or the CPU possibly being fried due to a power spike while on the charger. It seems like it only happens during heavy operations.
Something hardware it seems. Not sure what, but if a component on the mb is bad then it is a replacement.
I like the title though, doubt anyone has a device that stays charged while in system. Sorry about your phone, but made me chuckle. I really can't think of a better way to describe it, not trying to pick on you.
Here's my little story. I dropped my N5 and cracked the screen. It worked, but I wanted it to be pretty again. So I bought a screen/case and proceeded to do the swap. I watched several videos, read guides, etc and followed them step-by-step. After it was done, I was surprised how smoothly everything went. I then went to power it up and got nothing. I checked all the cable connections, reseated them, and still got nothing. I put everything back with the cracked screen. Still nothing. I check the cables carefully, there are no cracks or breaks in them. I left it on the charger all night and the next day, checking periodically, still nothing. I checked the battery connector with a multimeter, and it was getting a reading off it, so the thing must be receiving power, right? Anyway, I gave up for a few days, busy with the rest of life.
I came back to it one day, plugged it into the charger and this time I got the red blinking light. I searched around, and that seems to indicate the battery had lost it's charge completely. Again I charged it overnight, still nothing. I got adventurous and removed the battery and tried powering it with just the power cable plugged in. This time it displayed the charge full battery/lightning icon. Success! I hit power and it starts to boot, displays the Google logo, then shut down after maybe five seconds. So, it must be getting power through the system from the USB port. The mainboard/cpu/screen works, it's able to start booting. It even boots to the bootloader, keys work there.
Again I turned to the problem being the battery. I picked up another, thinking perhaps mine had gone bad somehow even though I never had a bit of trouble out of it (about 1.5 years old). I played with it some more, with either battery inside, it doesn't do anything. Without a battery, it starts to boot but gives up. Hoping I could get something from the bootloader, I plugged it into my PC, but the USB port doesn't seem to provide enough juice to get it back to the bootloader with no battery.
Finally, during one of my tests, I plugged in the battery while it had the charging cable in. Then it popped up the battery charging animation. Exciting! It must be successfully charging, now. Previously, it didn't display anything when I charged it for many hours. Now it's been charging about six hours. The battery animation still shows it filling from the bottom, usually it would blink the animation from like halfway to the top, right? I hold the power button, and the battery animation disappears and it goes dead yet again. I run the same tests, battery in, battery out and get the same results. It boots when there's no battery and the charging cable in, nothing when the battery is in with or without the charging cable.
So, here I am stuck again. Any other ideas? Thanks.
Hey guys, so I have a small problem. I used a Mi Bank (5200mAh) power bank to charge my OPO yesterday. It worked the day before. When I plugged it in yesterday, it charged for like 5 seconds and then wouldn't charge. So I tried a variety of other cables and chargers but none of them worked.
I turned the phone off and plugged it to charge, the charging battery icon would appear, disappear and then the phone would reboot to the charging screen and the cycle continued.
I then let the battery die and did a few power cycles and plugged the phone to charge while it was off. It started to charge and then fully charged. I used the phone till today and wanted to plug it in again. I charged it for around 20 minutes and it worked.
Now, I'm facing the same issue as yesterday.
Phone won't charge
Does not get detected in MTP or ADB mode, but DOES get detected in Fastboot mode.
Ampere shows the voltage as 3.7v, I recall the voltage being around 3.9-4.1v)
OTG also works. I connected a flash drive and it detected the source and I even watched a movie.
When I boot into recovery (TWRP 3.0.2.0) with the battery dead, and connected to the charger, the phone stays ON. I did a full Nandroid backup and a wipe and flashed another ROM as well and the phone stayed on, but as soon as the phone rebooted into the ROM and got to the boot animation, the phone shut down saying "battery low"
Not sure if it was a placebo effect or not, so I wrapped the phone in a dry towel and left it under my pillow for like 30 minutes and then plugged it to charge. It began to charge and after a full charge, I could use the phone without an issue so I proceeded to backup my data to the PC just in case I needed to perform a full wipe. About halfway through the copy process, the indicator light went off and the copy process got cancelled and the phone wouldn't show up in the PC again.
My question is, What is the culprit here?
Do I have to replace the entire motherboard?
Is it just a battery issue?
Is it a USB connector issue?
Any help with regard to this would be much appreciated