[Q] Stuck on Google logo after manual flash of Lollipop - Nexus 7 (2013) Q&A

A few weeks ago, before the OTA release of Lollilpop for my Nexus 7, I booted into fastboot mode and manually flashed the razor factory images for Android 5.0. Everything worked fine until the N7 crashed (from a fully working state) and rebooted. When it rebooted, it would not progress past the Google logo. All I can access is the fastboot screen.
I've now come back to try and fix it. I've tried erasing the system and flashing the old (and new) stock Android images using fastboot. This process completes without errors but the N7 will still not boot past the Google logo. I've also tried flashing a custom recovery but the N7 will not enter recovery mode.
My bootloader is unlocked and is currently version FLO-04.02. Does anyone have ideas for what to try next?

Related

[Q] Galaxy Nexus won't boot up! Restarting after google logo!

Hello to all
I have Samsung Galaxy Nexus 4.2.1 stock and unlocked.
It worked perfectly to two years! From yesterday i have problem with it! My GN won't boot anymore, I can see just google and X (nexus) logo after that GN restart itself! This is repeated without stopping until I put out battery.
I have tried to clear cache, wipe data/factory reset in Recovery Mode but problem has continued!
I have unlocked bootloader and update to android 4.3 stock (non rooted) through ADB (google SDK), updated successfully but when phone has reboot problem has continued, GN restart non-stop!
In Fastboot mode/Recovery Mode phone it never restarted! I have left in this mode with hours to try if restarted but no It works without any problems in this mode! It restart only when phone boot up!
Can this problem to be hardware failure or not?!
Can anyone help me? What can i do to boot my GN again?
I hope in your your support
visar.r said:
Hello to all
I have Samsung Galaxy Nexus 4.2.1 stock and unlocked.
It worked perfectly to two years! From yesterday i have problem with it! My GN won't boot anymore, I can see just google and X (nexus) logo after that GN restart itself! This is repeated without stopping until I put out battery.
I have tried to clear cache, wipe data/factory reset in Recovery Mode but problem has continued!
I have unlocked bootloader and update to android 4.3 stock (non rooted) through ADB (google SDK), updated successfully but when phone has reboot problem has continued, GN restart non-stop!
In Fastboot mode/Recovery Mode phone it never restarted! I have left in this mode with hours to try if restarted but no It works without any problems in this mode! It restart only when phone boot up!
Can this problem to be hardware failure or not?!
Can anyone help me? What can i do to boot my GN again?
I hope in your your support
Click to expand...
Click to collapse
Don't panic, this problem is called bootloop and it's normal. Just download factory images from here and flash them by using this awesome guide by efrant!!
Also bookmark this link for future reference.
http://forum.xda-developers.com/showthread.php?t=1812959
started having the same problem yesterday after 6 months of stability on a custom 4.3 rom.
oem lock then unlock to format, nothing, tried various methods of flashing back to stock via ADB with mixed results, normally more boot looping with it occasionally booting into a rom for ~5 seconds. so SOMETHING is working.
I tried Efrant's method about an hour ago, but its been sitting at the google logo since, I'm at a lost, I'm no stranger to boot loops when installing borked roms but this is the strangest problem I have ever had with an android device.
should I just chock it up to hardware failure?
Mostly yours USERDATA partition is corrupted.
Use FASTBOOT to reflash the USERDATA IMG and it should do the trick.
Sent from my Galaxy Nexus using xda app-developers app
did a total stock reflash again, got to the setup screen before it rebooted after ~15 seconds, bootlooping again. flashed the userdata img with a few different ones.
I'm trying to read my logcat but when I run the ADB command in clockwork It finds nothing.
I've done all steps by this awesome guide by efrant! But same problem here
I've tried to install 4.2.2 stock, 4.3 stock, all comands works but in the end when i press fastboot reboot my nexus it's in bootloop again restart restart and restart
Any other solutions :crying::crying::crying:
I've waited about 30 minutes after restarting non-stop, my GN boot to system i saw home screen of android but after 5 sec restarted again :crying:
I'm getting into my system once every 10 or so reboots. managed to turn off wifi in case that was the problem but still boot looping. I'm inclined to think it might be hardware related as I started having trouble in the middle of a text after several months of rom stability.

[Q] Stuck at the Goolge Screen.

I was running Clean Rom and everything was working just fine. I flashed liquid and the touch wasn't working at all. I held the power down to reboot and the device would not completely reboot. It hung on the Google Screen, I booted into TWRP, the touch still wasn't working... At this point I attempted to flash 4.4.2 stock image, it hung on the google screen. I flashed it again. It booted up, went through the motions, then shut down, booted into fastboot to flash recovery, flashed recovery, hung at google. Since, I can not get passed the google screen and I have tried everything I could think of and everything I have found...
I have flashed stock images through cmd via fastboot, I have tried Wug's toolkit, I have tried android toolkit...
It'll boot into fastboot, but it will not boot into recovery, stock/custom.
I don't know what else to try..
Any ideas would be helpful.

[Q] Bootloop help - Nexus Root Toolkit flash failed

I have a 32gig flo, I was running 4.4.4 with TWRP and ElementalX kernel. I tried to flash 5.02 with NRT and it all went wrong. First, while flashing it got stuck at the bootloader screen - pics / screenshots here. Then I realized the bootloader was locked, so I tried to unlock the bootloader with NRT and it got stuck in a boot loop. I pulled battery and tried the “Flash Stock + Unroot” feature to go back to stock 4.4 and the command prompt came up and said it was successful, but it's stuck in another bootloop, and now I can't even get back to the bootloader menu. I didn't use force flash mode and it said to try that but i can't get to that point. am I screwed? :crying:
edit: got into bootloader menu, used force flash mode and it's stuck in a boot loop again.
I just realized there were some text documents in Simple Notepad that i would have liked to keep. Is there any way I can recover them?

Stuck in Boot

Watch gets past the ASUS Boot Screens but gets stuck in the Android Boot animation.
I've tried booting into recovery (swipe top right to bottom left) but it doesn't work.
I can get into Fastboot and from there I've tried wiping the cache, unlocking, and relocking the bootloader. None of those options seem to do anything.
Background:
I've got two Android watches of my own (360 and LG G) and was actually just helping a friend upgrade the firmware on his ASUS ZenWatch since he's got an iphone.
1) I tethered to my phone and began the firmware download from stock, but it kept throwing an error about running out of memory, even after a factory reset.
2) I booted into Fastboot unlocked and wiped the cache. After this it successfully downloaded and upgraded to Android 5.0.
3) Went to download the next version (5.1 is needed for iPhone) and kept getting an error (this time different, couldn't get any matches doing Google searches). Tried a factory reset and it went into this mode where it makes it to the Android Wear boot animation and stays there until the battery dies.
I'm thinking the watch has some sort of hardware defect since he says he bought the watch new and it's failing on all firmware upgrades and won't boot into recovery.
Any suggestions? I'm not aware of any stock recovery images.

Can't boot into recovery with TWRP

EDIT: I FIXED IT. I had to go back to an older version of TWRP[2.7xx] for it to work on my older firmware.
HTC One M8 AT&T running 4.4.2, unable to update because I haven't been on AT&T for quite a long time.
Yesterday I unlocked the bootloader on my M8 for the first time and attempted to install TWRP[EDIT: ver 3.0.2] so that I could root my phone. I have the proper SDK and ADB drivers installed, fastboot is working just fine. I used the following commands:
adb reboot bootloader
fastboot erase cache
fastboot flash recovery twrp.img
From there I have tried both rebooting into fastboot[which is what the TWRP website says to do] and also going back into bootloader and booting into recovery without restarting the phone. Neither option has worked. When booting straight into recovery after flashing the recovery, my phone just says "loading recovery" in pink letters with the HTC logo on the screen and stays like that. HOWEVER, I've somehow managed to get screenshots while force restarting my phone during that, and it shows the right TWRP screen, I just can't see it. Any advice at all would be appreciated. I did search through other forum posts but I could not find my problem of the screen I cannot see.

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