Black screen after bootanimation - Storage read-only - G 2014 Q&A, Help & Troubleshooting

So I was playing with my phone and charging with fast charge on. The power went down and it was too late when I noticed. The battery percentage was at 0 % and it turned off. I charged it and when I tried to power it on after the bootanimation it only showed a black screen. I entered recovery and tried to wipe everything but I realized that somehow storage had turned to read-only. There's nothing I can do. I tried wiping through bootloader and flashing stock but still I cant make changes to storage. Please help.

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[Q] Phone won't charge, instead it goes to recovery when I plug it in

Hello,
Yesterday my Incredible S was booted into android, when I found it didn't charge anymore. The LED worked (showing red), and also it said "Charging", however the percentage only stayed the same, or went down. Since it reached 0% I can't get it to boot anymore. When I plug in the charger, the red LED blinks shortly and then boots into recovery (Clockworkmod 6), where it appears to be stable as long as I keep the charger in, and when I remove the plug it stays on for a minute or 5.
I can't boot into android or even into fastboot, but it will only (automatically) boot into recovery. I've tried different chargers and outlets, and i've also tried cleaning the cache and factory reset.
My current rom was android 4.4.4 (http://forum.xda-developers.com/showthread.php?t=2519414) though I don't think the rom is the problem.
Has anyone ever experienced something similar? Is my battery faulty and can I just replace it, or is this probably not it? Any ideas?
Thank you in advance.
PS: my recovery seemed to have changed it's menu since I experienced my problem: Some options seem to have changed, including that I can not select the "Wipe battery stats" anywhere anymore.
cakedev said:
Hello,
Yesterday my Incredible S was booted into android, when I found it didn't charge anymore. The LED worked (showing red), and also it said "Charging", however the percentage only stayed the same, or went down. Since it reached 0% I can't get it to boot anymore. When I plug in the charger, the red LED blinks shortly and then boots into recovery (Clockworkmod 6), where it appears to be stable as long as I keep the charger in, and when I remove the plug it stays on for a minute or 5.
I can't boot into android or even into fastboot, but it will only (automatically) boot into recovery. I've tried different chargers and outlets, and i've also tried cleaning the cache and factory reset.
My current rom was android 4.4.4 (http://forum.xda-developers.com/showthread.php?t=2519414) though I don't think the rom is the problem.
Has anyone ever experienced something similar? Is my battery faulty and can I just replace it, or is this probably not it? Any ideas?
Thank you in advance.
PS: my recovery seemed to have changed it's menu since I experienced my problem: Some options seem to have changed, including that I can not select the "Wipe battery stats" anywhere anymore.
Click to expand...
Click to collapse
Let me guess is your recovery is TWRP 2.6V?
If it is it is a known bug :fingers-crossed:
I recommend using CWM 5.0.xxV

[Q] My Phone is stuck on a Bootloop and I can't Reset it.

I own a Moto G 2nd generation running stock lollipop, no modifications, and a couple days ago the battery drained completely kind of quickly (it even turned off when it had 5% left). when i charged it again, it turned on but it charged only up to 1%. i left there for hours and it didn't charge more than it, when i took off the charger it turned on almost imediately so it wasn't a display bug, it really had 1% left. i tried changing chargers and cables but no luck. also when it turned on it displayed the CQATest app which is a Motorola diagnostics app that isn't supposed to show to the end user and it didn't get mobile signal (I didn't have wifi and i didn't check if it was still working). i left it a couple hours turned off to see if the battery drained completely but it didn't fix. after it I left charging the whole night and by the morning it was on the same situation.
When i switched airplane mode on and off, it got mobile signal, but still it had 1% battery and the CQATest app. after it, I took a shower and when i came back the screen was turned on, but completely black. when i turned off and on it remained the same. when i took off the carger it turned off suddenly, and when I put it on again the cellphone turned on imediately even if i didn't press any button. I turned on and off several times throughout the day and only once it turned on, but when it did it kept displaying messages like "the process com.android.whatever has stopped" several times per second, sometimes variating the process. when i turned off and on it went back to the black screen.
So i was willing to factory reset it, and i could access the fastboot menu, but since it only had 0 or 1% battery i couldn't activate recovery mode to do the wipe and reset. On the motorola support for the first generation it says that you can press the power button for 2 minutes to reset, but when i tried it, it kept turning on, then off then on again several times and it didn't reset. i had the debugging mode activated but my computer doesn't even recognize the device so i guess i couldn't try adb. what else can i do?
TL;DR my phone is stuck on a bootloop with 1% battery and can't use adb or recovery mode. how can i reset it?
Delibird Rulez said:
I own a Moto G 2nd generation running stock lollipop, no modifications, and a couple days ago the battery drained completely kind of quickly (it even turned off when it had 5% left). when i charged it again, it turned on but it charged only up to 1%. i left there for hours and it didn't charge more than it, when i took off the charger it turned on almost imediately so it wasn't a display bug, it really had 1% left. i tried changing chargers and cables but no luck. also when it turned on it displayed the CQATest app which is a Motorola diagnostics app that isn't supposed to show to the end user and it didn't get mobile signal (I didn't have wifi and i didn't check if it was still working). i left it a couple hours turned off to see if the battery drained completely but it didn't fix. after it I left charging the whole night and by the morning it was on the same situation.
When i switched airplane mode on and off, it got mobile signal, but still it had 1% battery and the CQATest app. after it, I took a shower and when i came back the screen was turned on, but completely black. when i turned off and on it remained the same. when i took off the carger it turned off suddenly, and when I put it on again the cellphone turned on imediately even if i didn't press any button. I turned on and off several times throughout the day and only once it turned on, but when it did it kept displaying messages like "the process com.android.whatever has stopped" several times per second, sometimes variating the process. when i turned off and on it went back to the black screen.
So i was willing to factory reset it, and i could access the fastboot menu, but since it only had 0 or 1% battery i couldn't activate recovery mode to do the wipe and reset. On the motorola support for the first generation it says that you can press the power button for 2 minutes to reset, but when i tried it, it kept turning on, then off then on again several times and it didn't reset. i had the debugging mode activated but my computer doesn't even recognize the device so i guess i couldn't try adb. what else can i do?
TL;DR my phone is stuck on a bootloop with 1% battery and can't use adb or recovery mode. how can i reset it?
Click to expand...
Click to collapse
google it but forced turn on + reset if I remember correctly is plug in a usb charger and hold power button for 2 minutes + this force turns on and resets / wipes

[Q] Phone on boot loop

So I tried to flash a rom today. Well, I tried to update it. I know I shouldn't have, but I aborted the process because it got hung up on the same thing for 10 minutes. Surprise, everything's screwed up. But don't worry, I fixed it. I literally re-constructed the system image through adb (the system folder was just deleted for some reason) and got the phone to boot again. But then the network wasn't working anymore, so I flashed the rom again and nope still not working. So then I flashed it AGAIN and my phone was low on battery and I was in class and it flashed fine, but then it shut off during boot. And now it's constantly turning on and booting over and over, and the battery is super low, and I can't access recovery. Or the bootloader. No combinations work, nothing. So here I am, completely at my own fault and stupidity. Ideas?
Here's the symptoms:
I plugged it in after class, 0% charge. Oops. Not supposed to do that.
Waited. Waited. Got to bootloader, tried to enter recovery. Not enough battery, waited.
Got to recovery, tried to boot normally, and now it gets the the "powered by android" screen for a couple of seconds, shuts down, and restarts the process.
My theory:
The phone is so low on battery it can't continue booting, so it shuts off. It uses what little battery it has to put the screen brightness on full and boot, repeat.
PDATE:
It's been a good hour or so, and the phone still shows 0% charge and wont boot. It's really hot.

Weird battery issue, has anyone else had this happen?

I noticed today that my phone has maintained a 100% charge, even hours after being unplugged. I tried rebooting, but that didn't fix it. I tried to boot into recovery (I have TWRP) to see if I can wipe battery stats, but once I selected recovery, an empty battery icon appeared and the phone shut off. I tried to boot up normally again, and the phone crashed outright during the boot animation and shut off.
After a minute the phone started up by itself, and went through optimizing apps (I plugged it into a charger out of curiosity). Now that the phone was able to boot, the battery is at 5% and finally charging again.
Has anyone else had this happen with their N6, or have any idea as to what might cause this? For reference, I'm running the latest stock image (LMY48I), just unlocked, rooted, and with custom recovery.
Only thing I have seen is apparently wireless charging screws it up. Go into bootloader>bootloader logs and reboot from there. May reset it.

Note 4 Black Screen and no boot - here's what worked for me

Today I received a call and my SM-N910T seems to have locked up while ringing. The screen was black, buttons did not work, power button did nothing. The ringer continued playing until I pulled the battery.
When I replaced the battery tried to restart, nothing happened but a the brief initial boot vibration. The screen remained black. I had the same result trying to enter download mode or recovery mode (after pulling the battery again for each try).
I read several articles about holding down power while the battery was out to "discharge remaining power", leaving the battery out for 10 minutes, etc. I tried booting to recovery and download maybe 10 or 20 times with varying delays with the battery taken out. Nothing worked. Always the same result - black screen, and the short vibration (sometimes it would keep repeating the vibration every few seconds). Other articles recommended factory reset and returning to Samsung.
Finally I plugged in a USB cable to a computer (with the battery inserted after another pull). The screen then activated and showed the battery charging icon. From there, I was able to press the power button and boot normally.
After booting, everything seems fine. I have no idea what the problem is or was. I hope this tip helps somebody else.
This happened to me again. Phone unresponsive - no boot, no download mode, no recovery mode, no display when charging. Trying any of these things just results in a short vibration, or a repeating vibration every few seconds. This time, plugging into the computer USB did not work. The phone immediately vibrated, but did not do anything else.
I kept trying multiple times, with the same result. No boot, no download mode, no recovery mode, no display for charging. Battery pulled between every attempt. Battery had a reasonable charge (75%). SD Card and SIM pulled.
Finally I had an idea and tried plugging it into the original Samsung fast charger. That caused it to display the battery charging image, and from there it booted normally.
I don't know if was the fast charger, the number of tries, or just luck, but that is what worked this time.
If anyone has other information on this problem, please post it. There are lots of "black screen" posts, but none seem to have a working solution.
life saver
timg11 said:
This happened to me again. Phone unresponsive - no boot, no download mode, no recovery mode, no display when charging. Trying any of these things just results in a short vibration, or a repeating vibration every few seconds. This time, plugging into the computer USB did not work. The phone immediately vibrated, but did not do anything else.
I kept trying multiple times, with the same result. No boot, no download mode, no recovery mode, no display for charging. Battery pulled between every attempt. Battery had a reasonable charge (75%). SD Card and SIM pulled.
Finally I had an idea and tried plugging it into the original Samsung fast charger. That caused it to display the battery charging image, and from there it booted normally.
I don't know if was the fast charger, the number of tries, or just luck, but that is what worked this time.
If anyone has other information on this problem, please post it. There are lots of "black screen" posts, but none seem to have a working solution.
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you are thi ONE

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