Hello XDA!
This morning, I attempted to flash Cyanogenmod 12 (CM12) onto my Google Nexus 6 using this youtube tutorial that I cannot link in this post, because I am a new member. The title of the video is "How to install CyanogenMod 12 Official Lollipop on the Nexus 6" It can be found on youtube.
Whenever I boot up the phone, it shows the "Google" screen. then the Cyanogenmod boot animation appears. A white popup shows up saying "Android is Starting Up. Finishing Boot" The entire screen then comes to life with cyanogen's default background. Finally, an error message consumes the screen saying "ENCRYPTION UNSUCCESSFUL. Encryption was interrupted and can't complete. As a result, the data on your phone is no longer accessible. To resume using your phone, we need to preform a factory reset. When you restore your phone after the reset, you'll have an opportunity to restore any data that was backed up to your google account." The only button shown on the screen says "RESET PHONE". If clicked, the phone reboots, but before it can boot it gets stuck loading the TWRP Recovery application. What happens is, it'll show the TWRP logo, then the screen will turn off, then it'll show the TWRP logo again, then this loop will repeat endlessly. The only thing that I could do was reboot the phone into the boot loader by holding down the power button, and the volume down button. From here, I attempted to boot into recovery mode. The same thing happens, the TWRP screen loads, then disappears, and that just repeats itself endlessly. I also tried to preform a factory reset, but that didn't work.
As you can see, I really need some help.
The encryption failing may be caused because I came off of a custom ROM where I had the phone's encryption disabled.
THANK YOU VERY MUCH, and if I can provide any information, please ask.
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The unit has been used for about 2 months and remains quite new. It was quite stable before. Yesterday night, about half an hour after plugged in for charging and with WiFi Hotspot turned on for sharing 3G data to another netbook, the unit suddenly rebooted itself. It then stopped at the start-up screen and remained there for several minutes. I kept holding the power button for a few seconds to turn it off but it then automatically reboot itself afterwards, and stopped at the start-up screen again. It means that even complete turning off is not possible.
Trying to enter into recovery mode showed the following few lines:
# MANUAL MODE #
-- Updating application...
Copying Common Apks.
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and then it automatically rebooted again. It means that it can't enter into recovery mode normally.
It was possible to enter into download mode. And it was the first time this machine went into download mode. I run Odin Downloader and flashed the official stock ROM. After showing "Pass", the device rebooted itself. Unfortunately, it still stopped at the start-up screen, just showing "Samsung Galaxy Tab 7.0 plus". It is really troubesome. I have experience playing several Android devices before and it is the first time I face such troublesome problem.
The device is an official product. The biggest problem is that the original purchase invoice was lost and most likely that I couldn't get official support, repair service or replacement.
May I ask if anyone would kindly provide me some help or advice. Thanks!
Instead of going into download mode go into recovery mode and see if there are any errors. Your scenario is sounding very similar to the one I had in the past.
I just ran into a nasty snag at boot logo as well. nandroid, stock kernel and factory reset were no help. Try Odin back to Stock, it still may not get past boot logo, hold vol up and power to get into recovery and factory reset. Hope it works for you.
Unfortunately I was unable to get into recovery mode even after odin flashing stock ROM.
It rebooted itself a few seconds after displaying some lines of text. I can't see the normal recovery menu.
I have the AT&T variant (D800), and got a popup that a software update from AT&T was available, so I tried to install it. The phone was rooted, and I think I had the stock recovery. I tried to flash CWM using ROM Manager from the Play Store, but everytime I tried to boot into recovery I got the "Error: boot certification error" on the LG logo screen.
So I tried to get the software update, which turned the phone off. It didn't boot up for like half an hour, so I tried to turn it on. I got the "Boot certification error," and then the phone went to the black screen. If I shut down by holding the power button and then turn it on again, same thing happens. Before, doing this would have booted the phone into the OS. Now it just repeats the error. What can I do? I'm getting it warrantied tomorrow, but if it's possible I'd like to avoid it.
I was in snapchat when all of a sudden my nexus 5x totally froze and rebooted (which is normal considering how much snapchat sucks.)
I saw the warning about my bootloader being unlocked which was normal and it went to the Google screen, where it sat for about 5 minutes. Normally in every previous bootloop I've had in the past, the boot animation just loops forever and ever. I force shut it off and tried booting it up again and this time on the Google screen the phone totally shut off and restarted showing me the warning about my bootloader. I tried the recovery, but got the same results. So, I went home and plugged it in thinking maybe that would help but it still was shutting off and rebooting. It never got to the boot animation. I had all the adb and fastboot drivers so I just decided to flash the factory image. It flashed fine, and sadly the problem was still there. I'm so stuck, I can't get into the recovery to do anything and there's only so much that you can do over fastboot. I've found that if I press the power button every couple seconds while the Google screen is still showing and it doesn't reboot but the Google logo won't leave for the boot animation.
Seriously guys, please just give me any of your ideas.
My Karbonn Sparkle V appears to have bricked itself, I don't know why, I don't know how to fix it, and I don't have the money or time to replace it. I turned it off when I was going to a job interview, prior to which it was working fine. Afterwards I tried to turn it back on, and for the last 12 hours I've been fighting to get it working again with no success.
I can get into recovery mode, but nothing more. If allowed to try a normal boot, then it will either stay on the "Karbonn Smart" logo screen forever and ever amen, or it will APPEAR to boot, but once it reaches the lock screen it dies on its arse. The best-case is that the lock screen will stay up for about 3 seconds, then the screen will go black for another 3 seconds, and then we go back to the lock screen and the process repeats. OR, the lock screen comes up, 3 seconds, and then we go back to the bouncing dots loading screen forever and ever amen.
I tried a hard wipe from recovery mode - it's made absolutely no difference.
This is a stock phone which has only ever received the OTA updates; I've never rooted it, I don't have a custom recovery installed, and I've never used ADB before today.
I've downloaded a number of "stock ROMs" for this phone, but none of them actually work for me; it doesn't seem to matter whether I try to install them through Recovery mode\Apply update from ADB, or put them on the SD card and try "Apply update from SD card". For most of them, I get the error "failed to verify whole-file signature" and it won't install; I tried to install the stock file from https://forum.xda-developers.com/crossdevice-dev/android-one-general/ota-links-t3287707 but that doesn't get me much further; The error becomes
"Package expects build thumbprint of 6.0.1/MMB290/2459718:user/release-keys or 6.0.1/MMB29K/2419427:user/release-keys; the device has 6.0.1/MOB31E/3142026:user/release-keys"
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I have pretty much no idea what I'm doing here; Please help.
My S7 has suddenly rebooted and now it won't go pass Samsung logo. At the first few reboots I was able to see PIN unlock screen where it would eventually freeze and automatically reboot, but now as I removed SIM and microSD it will only boot to Samsung logo in best case.
I have tried to enter recovery mode, but it freezes after 7 seconds at initial screen stating "updating system files". I can only successfully enter download mode.
What should I do? The warranty is not valid anymore, could I flash it with odin? Is there any way to recover data from internal memory? Please help.
krneki10 said:
My S7 has suddenly rebooted and now it won't go pass Samsung logo. At the first few reboots I was able to see PIN unlock screen where it would eventually freeze and automatically reboot, but now as I removed SIM and microSD it will only boot to Samsung logo in best case.
I have tried to enter recovery mode, but it freezes after 7 seconds at initial screen stating "updating system files". I can only successfully enter download mode.
What should I do? The warranty is not valid anymore, could I flash it with odin? Is there any way to recover data from internal memory? Please help.
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Hey, same problem here !
I have, in addition of all that, the famous "Black screen & blue led" issue when i try to boot up my S7.
But my phone keep freezing when he try to boot. Keep freezing and rebooting 30 seconds after i unlock the screen with the pin (when he can boot), and for the recovery, it works for me, but only once in ten ...
Every times he freeze at the boot, i must wait when the battery hae 0% and shut down automatically
i already tried to wipe cache, but the situation doesn't change anymore.
i don't know too how to recover the internal storage data ...
If someone can help us .. :fingers-crossed:
(For me, my phone is entirely stock, and never flashed)