[Q] Turn on, gray screen with "U" and gets hung up 99% - Nook HD, HD+ Q&A, Help & Troubleshooting

This morning I woke up, and turned on the nook HD. It was charged last night. Now it just turns on to a gray screen with in upside-down U and then counts quickly to 99% and gets stuck there forever. Won't shut off.
What is going on?

Related

G1 won't turn on

Hi,
This happened a while ago but never thought to post it. So, all of a sudden one night my phone turned off. I tried to turn it back on, and it didn't respond. I kept trying, no dice. When I plug in the charger the LED changes to red for a few seconds, only to go away soon. Occasionally, it will boot to the G1 screen, but then turn off, and other times into recovery, only to turn off a few seconds later, same with fastboot. I've tried 2 batteries as well. It was the day after flashing CM 5.0.8 I believe.
Thanks!

[Q] is my battery dead? Please help.

Hi, I was using my XZ yesterday flawlessly and then out of no where it just turned off. I did everything I could find on the forums but it just sits there with the red Led permanently on. I left it charge overnight, when I woke up the led was green and the screen said it had a full charge. I turn it on, it gets to the lock screen and then shuts down again. It's sitting there again with the red led on as if the battery was drained completely in 1 min! What can I do about it? THANKS!
ripadram said:
Hi, I was using my XZ yesterday flawlessly and then out of no where it just turned off. I did everything I could find on the forums but it just sits there with the red Led permanently on. I left it charge overnight, when I woke up the led was green and the screen said it had a full charge. I turn it on, it gets to the lock screen and then shuts down again. It's sitting there again with the red led on as if the battery was drained completely in 1 min! What can I do about it? THANKS!
Click to expand...
Click to collapse
Hmm... Try doing this:
Get it charged till you get the led green, KEEP charging, and then turn it on. See if you can use it for 5 mins, 10 mins, even an hour. See if it turns off automatically. If it works fine while plugged, then that shouldn't be the problem of your ROM. Then, unplug the charger, and see if it shuts down soon. If it does, we can make sure it's the problem of your battery.
ripadram said:
Hi, I was using my XZ yesterday flawlessly and then out of no where it just turned off. I did everything I could find on the forums but it just sits there with the red Led permanently on. I left it charge overnight, when I woke up the led was green and the screen said it had a full charge. I turn it on, it gets to the lock screen and then shuts down again. It's sitting there again with the red led on as if the battery was drained completely in 1 min! What can I do about it? THANKS!
Click to expand...
Click to collapse
Check this thread credits to @AhmedZadjali
So this happened...
androidtweaker1 said:
Check this thread credits to @AhmedZadjali
Click to expand...
Click to collapse
I'm gonna check that out thank you! .. and I'm pretty sure it's a ROM problem because it was fully charged and yet it shut down never to be woken up again til 5 min ago that I connected it to the PC and it briefly showed me the charging screen (battery completely drained) and then the Red Led came back on and the screen went away as soon as I disconnected it from the PC. I connected it to the wall charger but the screen didn't come on again. Thoughts about this? (also the computer briefly recognized the phone and then it didn't anymore) right now is plugged to the wall charger to see if the battery picks up, so I can proceed with all the flashing stuff.
What causes this type of problems? I really had high hopes with this phone, it's gorgeous to look at (the best design on a phone IMO) but it failed me

[Q] Help! Phone will not charge...!

I was talking on the phone on my way home. The battery lasted all the ride home, that's good, but it died on me just as I got home. So I plug it to the charger and it turns on like normal on the charging screen with the horizontal color battery animation, and the orange charging light pulses. Then it changes to the other battery animation, the all white vertical one, and the orange light stays solid, like normal. The issue is, the phone doesn't even last a second charging, the orange light turns off, and the phone reboots, only to repeat what I just wrote... So I tried to turn it on as soon as the second battery animation comes up, then the orange light goes on solid for less than a second, and it manages to turn on. It goes through the splash screen and the boot animation, no problem. But as the boot anim fades and its supposed to finish booting and start charging again, neither does it finish booting nor does it start charging... The orange light starts to pulse twice quickly, as if telling me it's not charging, and then shuts down... The phone is rooted but running stock everything, AT&T 4.4.2... Any ideas???? After some attempts, I'm able to get it as far as into recovery, but I really don't know what to try as this definitely doesn't seem like a Rom error or anything that flashing or RUU would fix????

[Q] Anyone else's screen stay on while charging?

I never noticed this before tonight. I have the Samsung wireless charger so I assumed the light I was seeing from behind me (I have it on my bookcase headboard and the base lights up in blue while charging and turns green when done) was from that. Tonight, I have the phone physically plugged in and sitting on the coffee table next to me. The screen won't stay off while charging. I push the power button to turn it off, it goes off for a few seconds and then comes back on.
Is this normal? I have the screen timeout set to 30 seconds, don't have Daydream turned on (anymore) and Stay Awake is turned off in Developer Options.
I went and put it back on the wireless charger and confirmed that the light won't stay off there either.
If it matters, I'm running Rapture 2.1 (COF8/5.1.1)
Disregard. It was caused by Cellmapper.

Phone Not On Show Only Red Light

Honor 10 Lte
My phone had a 5% charge. When I charged it, the phone went off. Since then the phone is not turned on, only the red light is on.

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