We've had a pair of Nabi jr tablets for about 6 months, my youngest daughters Nabi jr seems to be having an issue. % days ago, she brought it to me, because she said it wouldn't turn on, assuming it had been off the charger, I told her to put it on and the next day she could play with it.
The next day comes and I go to check on it, I unplugged it from the wall charger, and tried to turn it on. Nothing, just a blank screen, so I plugged it back in, and noticed the screen flicker a second, not light up, but flicker like the screen got power, so I pressed the power button and it turned on. \
After booting up the battery said 0%, so I went into setting and to battery and it says Battery 0% status Unknown. I've tried everything to figure this out, I even took the back cover off to check the battery, and using my multimeter, it says the battery is getting the charge. But for some reason it won't run off the battery, only when it's plugged into the wall charger.
Any help would be greatly appreciated.
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Why won't my XT720 start up?
When it is connected to my charger, the four action keys light up. Despite leaving it to charge overnight, it appears that the battery isn't charging. The phone won't start while it is charging, neither when connected to the mains or to my car power supply.
I bought a new battery without any improvement.
When I access the bootloader screen it says there is too little power in the battery to program the phone.
The phone is not recognised by my computer when connected.
The phone is running Froyo 2.2. with Dexter rom.
I would be very grateful for any suggestions......apart from binning the phone!
Thanks!
I think the phone likes to selfboot with too little charge. See if you can shut it down cleanly so it won't autoboot. It's annoying but you may have to watch it very carefully to catch it when it's trying to boot because it will drain itself back to death very quickly.
Oakham said:
Why won't my XT720 start up?
When it is connected to my charger, the four action keys light up. Despite leaving it to charge overnight, it appears that the battery isn't charging. The phone won't start while it is charging, neither when connected to the mains or to my car power supply.
I bought a new battery without any improvement.
When I access the bootloader screen it says there is too little power in the battery to program the phone.
The phone is not recognised by my computer when connected.
The phone is running Froyo 2.2. with Dexter rom.
I would be very grateful for any suggestions......apart from binning the phone!
Thanks!
Click to expand...
Click to collapse
Hi Oakham, do you have any update to your case? I have the same problem now.
Yesterday, I noticed the battery bar went down to orange region (about 30%?). I plugged it to the wall for about an hour (the charging symbol showed up). Later I found out that the battery bar did not move (still stuck at orange region). Later the night, I tried to charge again (the bar was red at about 15% or less). The charging symbol showed up. Later I checked, the battery bar did not improve but declined. The phone eventually went out of battery and turned itself off.
I tried to continue to charge using both the wall outlet and PC USB. No luck. I could not even power up the phone now. Did you manage to resolve your case? Anyone got the same problem and found the solution?
I thought about buying a new battery to try, but then I saw your post, so I hesitated.
Thanks.
ecwchan said:
Hi Oakham, do you have any update to your case? I have the same problem now.
Yesterday, I noticed the battery bar went down to orange region (about 30%?). I plugged it to the wall for about an hour (the charging symbol showed up). Later I found out that the battery bar did not move (still stuck at orange region). Later the night, I tried to charge again (the bar was red at about 15% or less). The charging symbol showed up. Later I checked, the battery bar did not improve but declined. The phone eventually went out of battery and turned itself off.
I tried to continue to charge using both the wall outlet and PC USB. No luck. I could not even power up the phone now. Did you manage to resolve your case? Anyone got the same problem and found the solution?
I thought about buying a new battery to try, but then I saw your post, so I hesitated.
Thanks.
Click to expand...
Click to collapse
I've had this problem. Watching the phone closely while charging and pulling the battery whenever it starts to boot works. After about the fourth time doing this I got a battery charger from amazon for ~$5 because it's gently loving annoying.
Sent from my XT720 using XDA Premium App
Thanks for your advice.
So when you first bumped into this problem, how did you get it back to boot up?
I followed your advice to watch it while it's charging. When I saw the motorola logo showed up, I pulled the battery. Then I plugged it back and let it charged for some more time. Then I tried to power up the phone. The motorola logo came on and then the big battery symbol came on saying it's 100% full (but i knew it's not). Later, those 4 soft touch button lid on. This cycle repeated. And I'm clueless.
Please let me know the steps you took to recover your phone.
Thanks.
ecwchan said:
Thanks for your advice.
So when you first bumped into this problem, how did you get it back to boot up?
I followed your advice to watch it while it's charging. When I saw the motorola logo showed up, I pulled the battery. Then I plugged it back and let it charged for some more time. Then I tried to power up the phone. The motorola logo came on and then the big battery symbol came on saying it's 100% full (but i knew it's not). Later, those 4 soft touch button lid on. This cycle repeated. And I'm clueless.
Please let me know the steps you took to recover your phone.
Thanks.
Click to expand...
Click to collapse
Once you get into the system use 'power off' from the menu. It won't autoboot then and you can leave it in the wall overnight. I think. A voodoo doll may work, too. It can be really frustrating, but I've been able to get out of it every time so far. Like I said, I got sick of this game and found a battery charger for pretty cheap.
Sent from my XT720 using XDA Premium App
ecwchan said:
Thanks for your advice.
So when you first bumped into this problem, how did you get it back to boot up?
I followed your advice to watch it while it's charging. When I saw the motorola logo showed up, I pulled the battery. Then I plugged it back and let it charged for some more time. Then I tried to power up the phone. The motorola logo came on and then the big battery symbol came on saying it's 100% full (but i knew it's not). Later, those 4 soft touch button lid on. This cycle repeated. And I'm clueless.
Please let me know the steps you took to recover your phone.
Thanks.
Click to expand...
Click to collapse
Try deleting batterystats.bin and doing what M said.. can you get to open recovery and charge from there?
I also had the 'M' logo screen, stuck on-screen when the charger was connected. There is a post which suggests, for this, 'Pull battery.2) Insert battery and hit power button;3) As soon as you hit the power button, hold the volume up button down until the unboxing logo comes up.'
As my phone is still under warranty, I sent it back to see if there is a physical problem. I'll try the above suggested solution when my phone comes back from 'Motorola', whether or not it is repaired by them! I've also bought a battery charger for the phone's BP6X battery from e-Bay (£9.50, including another battery.)At least I will then know that a battery is fully charged before I try fixes.
Thanks for the other posts/replies!
hellmonger said:
Try deleting batterystats.bin and doing what M said.. can you get to open recovery and charge from there?
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Click to collapse
In my experience OR drains faster than it can charge.
Sent from my XT720 using XDA Premium App
Damn!
I had about the same. Battery got drained down from 80% to 5%. Then the screen for "please plug in for charging" appeared. Some moments later the phone went dark and now I can't get it to work again. It doesn't react on the power button. Even when plugged in the charging-symbol doesn't appear. I can't turn it on. Sucks!
Any ideas?
My phone has been repaired by Motorola, under warranty, and returned after four days. Accompanying report is brief: 'Software update and screening'. Seems to be working fine.......just like a brand new phone!
This morning i find myself in the same situation. My phone have the soft keys iluminated but it didint work.OMG... what happend durring the night.So i tried to boot the phone but nothing happend,and after reading tje post on the problem i have tried to remove the battery and put`it back, tryed anothe reboot, and holdind the buttons power+vol up. Nothing worked. But when i have tried the combination power + vol up + cammera shutter and plugged the cable. at first nothing happend. but after i have relesed the buttons the logo apeared and started charging. after that i powerd on my phone normaly
My phone does that everytime it charging and I remove the plug when it's in sleep mode. I have to remove the battery and it's power on normally.
Sent from my Motorola XT720 using Tapatalk
Hi
I have a Mediacom 910 tablet that i flashed with a CM9 rom.
Worked fine for weeks, i turned the screen off to go to sleep one evening and the next day it would not turn on.
Put it on the charger and waited several hours.
Now when i press the power button all i get is a white battery icon in the middle of the screen. Inside the battery is an orange triangle with an exclamation mark inside.
What can i do to revive this unit...It must have charged the battery because now it will turn on like i mention above without the charger inserted.
I also measured that the charger is giving out 5 volts and the same thing happens when i plug in the micro usb cable to charge with that.
Anyone have any ideas what to do (Besides throw it away )
I've the same problem. I've opened the device to check if the battery link was ok. Any suggestion?
today i woke up like any other day, turned on my Infuse after having a fully charged battery and after doing my morning routine i went to work. on the car i did a random screen unlock, and lock (just to see the battery level), but when i get to work my phone didnt turn on; so i removed the battery thinking it froze, and when i tried to turn it back on after re-inserting the battery nothing happened. i tried plugging into the charger but nothing happens (no vibration, no bottom lights). when plugged into wall charger, after a couple of minutes, (the right side of the back camera) starts heating up for no apparent reason. plz anyone knows whats wrong or any ideas???????
Looking for any help or guidance here. I searched the forums and have found limited info fitting my situation.
My S3 is rooted running Jelly Beans Build 15, today I was sitting here playing a game the phone was in use for a while so it was warm to the touch as it can normally become... mid game there was a slight flicker of the screen and it DIED.
Since then I can not get any power back. I pulled the battery, and tried to power up I get a vibe then nothing happens. I've tried to reboot into DL or recovery all it will do is vibe then nothing happens.
I plugged it into the charger and it will vibe, the LED doesn't come on, and the battery icon on the screen will flash on and off the screen, each time it appears there is a short vibe.. with all that the phone won't boot.
I've had it about a year. SO did it just sh!t the bed on it's own??
JFrawls said:
Looking for any help or guidance here. I searched the forums and have found limited info fitting my situation.
My S3 is rooted running Jelly Beans Build 15, today I was sitting here playing a game the phone was in use for a while so it was warm to the touch as it can normally become... mid game there was a slight flicker of the screen and it DIED.
Since then I can not get any power back. I pulled the battery, and tried to power up I get a vibe then nothing happens. I've tried to reboot into DL or recovery all it will do is vibe then nothing happens.
I plugged it into the charger and it will vibe, the LED doesn't come on, and the battery icon on the screen will flash on and off the screen, each time it appears there is a short vibe.. with all that the phone won't boot.
I've had it about a year. SO did it just sh!t the bed on it's own??
Click to expand...
Click to collapse
My first S3 did almost the same thing one day. My wife and I both got them on launch day and mine always seemed to run out of battery a bit faster than hers. One day, it got really warm in my pocket and the battery started draining out of control, it dropped 10% in a few minutes and just kept going until it was dead. Plugging it into USB to charge, it vibrated, I got the big battery icon on the screen, then reboot, vibe, icon, over and over again. I had to exchange it with Verizon.
JFrawls said:
Looking for any help or guidance here. I searched the forums and have found limited info fitting my situation.
My S3 is rooted running Jelly Beans Build 15, today I was sitting here playing a game the phone was in use for a while so it was warm to the touch as it can normally become... mid game there was a slight flicker of the screen and it DIED.
Since then I can not get any power back. I pulled the battery, and tried to power up I get a vibe then nothing happens. I've tried to reboot into DL or recovery all it will do is vibe then nothing happens.
I plugged it into the charger and it will vibe, the LED doesn't come on, and the battery icon on the screen will flash on and off the screen, each time it appears there is a short vibe.. with all that the phone won't boot.
I've had it about a year. SO did it just sh!t the bed on it's own??
Click to expand...
Click to collapse
Any chance you could get your hands on a different battery to try? I was in class once playing some dumb mini putt game some guys played next to me, and my phone just completely shut off. I couldn't get it to turn back on and at the time it turned off I had ~half battery. I got back to my room and put a different battery in it and it worked fine. I charged the battery that wouldn't work and it now works fine again. Not really sure what the problem is though...
But yeah. Find another battery to use to get it to boot back up
So the phone is alive and working. It seems there may have been an issue with the battery level and a bad reading. When the phone died it read 20%, I hooked it up to a usb power cable on my pc and work and it didn't work.
When I got home I plugged it into the OEM charger and it was showing the battery was essentially dead and charged the phone back up...
That's all that happened... strange but true
JFrawls said:
So the phone is alive and working. It seems there may have been an issue with the battery level and a bad reading. When the phone died it read 20%, I hooked it up to a usb power cable on my pc and work and it didn't work.
When I got home I plugged it into the OEM charger and it was showing the battery was essentially dead and charged the phone back up...
That's all that happened... strange but true
Click to expand...
Click to collapse
Then it didn;t brick itself..... it had help.
I think you have the same problem I did. When my phone completely dies and I plug it to the charger the battery charging icon goes on and off or if I get lucky stays on and charges it. But I put the same battery o. Another phone it charged instantly. I got a replacement from verizon.
Sent from my SCH-I535 using xda premium
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.