[Q] Please help! Stuck on boot screen! - Nexus 7 Q&A, Help & Troubleshooting

I attempted to flash a Liquid Smooth rom yesterday. I rebooted into the bootloader, and chose recovery mode. I wiped all cache, then installed the zip. I followed this by installing the gapps zip immediately, which I think I shouldn't have done.
When I rebooted it, it was stuck on the liquid smooth screen for a while, I know this is normal, but when it sat there for an hour and fifteen minutes I knew something was wrong. If I hold down both volume keys and the power button I can reboot into the bootloader again, but when I now choose recovery mode, it gets stuck on the google load screen.
Can anybody help me out?

danlk2 said:
I attempted to flash a Liquid Smooth rom yesterday. I rebooted into the bootloader, and chose recovery mode. I wiped all cache, then installed the zip. I followed this by installing the gapps zip immediately, which I think I shouldn't have done.
When I rebooted it, it was stuck on the liquid smooth screen for a while, I know this is normal, but when it sat there for an hour and fifteen minutes I knew something was wrong. If I hold down both volume keys and the power button I can reboot into the bootloader again, but when I now choose recovery mode, it gets stuck on the google load screen.
Can anybody help me out?
Click to expand...
Click to collapse
Plug the N7 into your PC before you boot into the bootloader.
You were correct to flash gapps immediately after flashing the ROM. Maybe the ROM didn't flash correctly because you only wiped caches. If you are coming from a different ROM you will need to do a factory reset. If you didn't back up your apps and don't have a nandroid, then you might want to wipe caches, format system, and reflash the previous ROM and try to boot in and backup your apps. Might not work but worth a shot if you got stuck where you are now with no app backups.

irishrally said:
Plug the N7 into your PC before you boot into the bootloader.
You were correct to flash gapps immediately after flashing the ROM. Maybe the ROM didn't flash correctly because you only wiped caches. If you are coming from a different ROM you will need to do a factory reset. If you didn't back up your apps and don't have a nandroid, then you might want to wipe caches, format system, and reflash the previous ROM and try to boot in and backup your apps. Might not work but worth a shot if you got stuck where you are now with no app backups.
Click to expand...
Click to collapse
Wow, that didn't even cross my mind, I did this and I've got the rom up and running now. Thanks a lot.

Related

[Q] question: infinite boot image with custom rom

I know it has been asked before, and I have searched the threads. reverting to stock is not a problem.
nexus 7 grouper when installing a custom rom (liquid smooth v2.9 specifically) I get stuck on the liquid boot image.
I have successfully installed v2.7 and am able to revert back to stock or custom.
after a data format, factory reset, and wiping all caches, installing the zip file from abd sideload, or directly from the device the new rom that has flashed will not get past the boot image. am I doing something wrong, or could I do something differently so that the new v2.9 boots up correctly?
I know it has been asked, but the most common answer is to go back to stock. okay, I get that. but I know this rom will run (it is flawless on my s3,) but I cant seem to get it working on the nexus.
thank you.
aircooledbusses said:
I know it has been asked, but the most common answer is to go back to stock. okay, I get that. but I know this rom will run (it is flawless on my s3,) but I cant seem to get it working on the nexus.
Click to expand...
Click to collapse
There have been numerous reports of bootup problems with "clean" LiquidSmooth ROMs in v2.7, 2.8 and 2.9.
Some possible solutions are:
Dirty flash on top of a LS ROM that boots (for instance dirty flash 2.9 on top of 2.7). When doing this you DON'T clear data and cache, but flashes new rom directly, along with gapps and kernel, and boots up. This has worked for some.
Another option when you get stuck on boot screen is to boot into recovery, and do factory reset and clear caches one more time, and try to reboot. It might take several times booting into recovery, and clear data/caches before it boots up, but again this has worked for some.
Finally you could also try the order in which you flash stuff. For instance try ONLY flashing rom, then reboot. If it works, then flash gapps. If it gets stuck, try flashing both rom and gapps in recovery, then reboot etc.
Hope that gives you something to play with! And I'm pretty sure that if you're insistent enough, you will eventually get it to boot! :good:
ameinild said:
There have been numerous reports of bootup problems with "clean" LiquidSmooth ROMs in v2.7, 2.8 and 2.9.
Some possible solutions are:
Dirty flash on top of a LS ROM that boots (for instance dirty flash 2.9 on top of 2.7). When doing this you DON'T clear data and cache, but flashes new rom directly, along with gapps and kernel, and boots up. This has worked for some.
Another option when you get stuck on boot screen is to boot into recovery, and do factory reset and clear caches one more time, and try to reboot. It might take several times booting into recovery, and clear data/caches before it boots up, but again this has worked for some.
Finally you could also try the order in which you flash stuff. For instance try ONLY flashing rom, then reboot. If it works, then flash gapps. If it gets stuck, try flashing both rom and gapps in recovery, then reboot etc.
Hope that gives you something to play with! And I'm pretty sure that if you're insistent enough, you will eventually get it to boot! :good:
Click to expand...
Click to collapse
I will keep trying. getting liquid to run on the fascinate was curious as well, but after a few flashes it took. I'll keep trying on the nexus.
Update: yes, persistence is the key. thanks
What I did was from v2.8 a factory reset, wipe cache and dalvik and flash from sideload
as expected it boot looped. manually booted into fastboot and flashed v2.9 again with only a cache and dalvik wipe.
this time it booted and I flashed gapps.
at the reboot I set up the rom to my liking and it seems to boot normally now.
aircooledbusses said:
at the reboot I set up the rom to my liking and it seems to boot normally now.
Click to expand...
Click to collapse
Yes, after it boots through the first time, I've only seen it boot normal from that point on.

Reboots cause loops, TWRP cant mount data

ive tried a whole bunch of roms and the behavior seems to be very consistent.
Here's the scenario, same for every rom:
-boot into TWRP, advanced wipe -> wipe everything
-flash rom over adb sideload
-reboot system
-rom comes up just fine the first time, log into google, restore apps
-any time i reboot after, it sits on "Galaxy s4" boot screen, if I then reboot into recovery, TWRP asks for password because it can't mount partitions.
-only way ive found to get out of this is to format data, then reflash.. only until the first reboot again.
stock rom works flawless, the only custom rom that also worked flawless was task650's AOKP 4.2 rom, which was strange but i used it for couple months. now since i i updated to his latest 4.3 release the same issue came up, so i tried again a number of different roms.. no luck
ive exausted my google-fu and these forums, can someone please help... is this a kernel issue? bad hardware? am i just doing something very simple very wrong?
In twrp, just do the standard wipe, the one that you just swipe the wipe. I think your wiping too much.
Then install the Rom, kernel, and what else you may need, no need to side load it
jd1639 said:
In twrp, just do the standard wipe, the one that you just swipe the wipe. I think your wiping too much.
Then install the Rom, kernel, and what else you may need, no need to side load it
Click to expand...
Click to collapse
same thing, except this time it didnt even boot once, stuck on "galaxy s4" logo, then rebooting back into TWRP prompted a password coz it couldnt mount anything...
i think it gets stuck on boot logo because it cant mount partition same way TWRP cant, but i have no idea why it wouldnt be able to after a reboot or what could be screwing it up
Why don't you try flashing a new recovery?

[Q] Xt907 Freezes at bootloader unlock screen on 4.3 Roms

Hi guys I've been searching and cant seem to find an answer. My xt907 is rooted and my boot loader is unlocked I'm running CWM. If i install any 4.3 roms they work great for initial boot but as soon as i reboot it hangs at the warning boot loader unlocked screen. And the only way i can get the phone working again is to get to ap fastboot and use the DROID_RAZR_M_Utility_1.20 to factory reset everything. If i flash a 4.2.2 rom i don't have any problems. Any ideas guys ? Ive searched and cant seem to find an answer anywhere. Thanks in advance!
My first flash of 4.3 did this... after that I used twrp and haven't had it happen since...
Sent from my XT907 using xda app-developers app
The latest TWRP+mounting system prior to data/system wipes will probably solve your problems. Also, if you have a backup stored, you shouldn't need to fastboot every time.
I've been having the same problem. I thought it might be because I was using CWM, so I thought I'd give it a go with TWRP 2.323. I made a backup, wiped System, Formatted Data and wiped cache and Dalvik cache and installed [ROM][4.4.1][Official][OSE Rom][XT907].
It installed and booted up fine. After a restart, it hung on the bootloader screen. After booting up into TWRP and restoring the backup, it's still hanging on the bootloader unlocked screen. Doh!
I just reinstalled the new ROM and will hope I don't have to restart while I'm out today. Any ideas on things I can try to get things working?
Ryan F said:
I've been having the same problem. I thought it might be because I was using CWM, so I thought I'd give it a go with TWRP 2.323. I made a backup, wiped System, Formatted Data and wiped cache and Dalvik cache and installed [ROM][4.4.1][Official][OSE Rom][XT907].
It installed and booted up fine. After a restart, it hung on the bootloader screen. After booting up into TWRP and restoring the backup, it's still hanging on the bootloader unlocked screen. Doh!
I just reinstalled the new ROM and will hope I don't have to restart while I'm out today. Any ideas on things I can try to get things working?
Click to expand...
Click to collapse
twrp 2323???
You need twrp 2630
see my goodies.
aviwdoowks said:
twrp 2323???
You need twrp 2630
see my goodies.
Click to expand...
Click to collapse
Okay, I downloaded xt907-twrp-2.6.3.0. In trying to flash with fastboot, it's hanging on <waiting for device>. USB Debugging is enabled and the device is showing up. Thanks for the help!
Ryan F said:
Okay, I downloaded xt907-twrp-2.6.3.0. In trying to flash with fastboot, it's hanging on <waiting for device>. USB Debugging is enabled and the device is showing up. Thanks for the help!
Click to expand...
Click to collapse
Fastboot!
Extract the recovery.img from the zip.
But why do that, just flash the zip from your twrp you now have installed
Ryan F said:
Okay, I downloaded xt907-twrp-2.6.3.0. In trying to flash with fastboot, it's hanging on <waiting for device>. USB Debugging is enabled and the device is showing up. Thanks for the help!
Click to expand...
Click to collapse
I believe the one that Avi has is a .zip, not a .xml, so it needs to be flashed in recovery. Load it up on your SD, boot into the recovery you have now, flash the new recovery, and then reboot recovery.
TWRP 2.6.3.0 flashed successfully. Unfortunately, that didn't help at all. My phone still froze on the boot screen. I then booted into the new recovery, wiped everything and reinstalled the rom. Now it won't even boot the first time into the ROM, it just freezes on the boot screen. Help!
*EDIT
I just reinstalled it again and formatted data on top of the wipes this time. It booted into the new rom this time, but it did not get past the boot screen after restarting still.
Ryan F said:
TWRP 2.6.3.0 flashed successfully. Unfortunately, that didn't help at all. My phone still froze on the boot screen. I then booted into the new recovery, wiped everything and reinstalled the rom. Now it won't even boot the first time into the ROM, it just freezes on the boot screen. Help!
*EDIT
I just reinstalled it again and formatted data on top of the wipes this time. It booted into the new rom this time, but it did not get past the boot screen after restarting still.
Click to expand...
Click to collapse
If your rom DL is corrupt?
Also
Arrrghhh has advice on twrp 263, http://forum.xda-developers.com/showthread.php?goto=newpost&t=2573153
It should apply to our 263 also.
---------- Post added at 11:40 PM ---------- Previous post was at 11:29 PM ----------
I use their version (Q)(EDIT ONLY 261 HAS USB MOUNT) and it has usb mount! But it is hard to navigate but I am used to it
Ryan F said:
TWRP 2.6.3.0 flashed successfully. Unfortunately, that didn't help at all. My phone still froze on the boot screen. I then booted into the new recovery, wiped everything and reinstalled the rom. Now it won't even boot the first time into the ROM, it just freezes on the boot screen. Help!
*EDIT
I just reinstalled it again and formatted data on top of the wipes this time. It booted into the new rom this time, but it did not get past the boot screen after restarting still.
Click to expand...
Click to collapse
Many people ran into this issue when 4.3 came out and then someone realized that we were forgetting something when wiping. It was something that we did when the BL was first unlocked, but everyone seemed to forget about it. We were forgetting to mount system, prior to performing wipes of the data/caches. Like Avi said, first, I would DL the ROM again and then place it in your SD. When you wipe, do the FDR option first. After that, go into mount and mount system. Then, go into the advanced wipe options and wipe data, system, cache/dalvik, and format data again. At this point, you can install the ROM as normal, don't re-mount system prior to installing, though. When I am done wiping, I always reboot recovery, but you don't have to do that.
aviwdoowks said:
If your rom DL is corrupt?
Also
Arrrghhh has advice on twrp 263, http://forum.xda-developers.com/showthread.php?goto=newpost&t=2573153
It should apply to our 263 also.
---------- Post added at 11:40 PM ---------- Previous post was at 11:29 PM ----------
I use their version (Q)(EDIT ONLY 261 HAS USB MOUNT) and it has usb mount! But it is hard to navigate but I am used to it
Click to expand...
Click to collapse
Okay, I downloaded the zips again to make sure. This freezing at bootloader screen has happened with every of the dozen or so roms I've tried installing over the past 6 months since I unlocked the bootloader.
RikRong said:
Many people ran into this issue when 4.3 came out and then someone realized that we were forgetting something when wiping. It was something that we did when the BL was first unlocked, but everyone seemed to forget about it. We were forgetting to mount system, prior to performing wipes of the data/caches. Like Avi said, first, I would DL the ROM again and then place it in your SD. When you wipe, do the FDR option first. After that, go into mount and mount system. Then, go into the advanced wipe options and wipe data, system, cache/dalvik, and format data again. At this point, you can install the ROM as normal, don't re-mount system prior to installing, though. When I am done wiping, I always reboot recovery, but you don't have to do that.
Click to expand...
Click to collapse
Could you clarify a little bit?
1.) Mount system
2.) Wipe (Factory Reset: data, cache, dalvik)
3.) Format data
4.) Install zips
What's the FDR option?
---------- Post added at 09:21 AM ---------- Previous post was at 09:07 AM ----------
Ryan F said:
1.) Mount system
2.) Wipe (Factory Reset: data, cache, dalvik)
3.) Format data
4.) Install zips
Click to expand...
Click to collapse
Following the above steps didn't solve it The rom installs fine, boots up for first time normally, but still freezes on the bootloader screen after a restart.
Try geting to the bootloader options & choose normal pwr up.
The new twrp will stick at the big M sometimes.
Then the file is bad or you are missing the install steps. FDR (Factory Data Reset) is the first option you get when you go into the wipe menu, before you go into advanced options. Make sure you're wiping system too, after you mount. If it doesn't work, then it's a bad file or you're still doing something wrong. Upgrading to the most current TWRP and mounting system fixed the issues for 99% of the people. The other 1% just have one of those phones that is "quirky."
okay not sure if your still having this problem. But i never did solve my issue just kept using 4.2.2. But i just flashed the new jbx kernel and a KitKat rom the other along with the newest version on safestrap and i have no issues. Everything flashed and installed perfectly and it boots like a champ. So maybe just skip over 4.3 like i did and see if you still have the issues. Sorry didnt see you were trying to flash 4.4. Only thing i can suggest is make sure you have newest safestrap and wipe out the old etc. But im sure everyone already touched on this stuff before me
beady1 said:
okay not sure if your still having this problem. But i never did solve my issue just kept using 4.2.2. But i just flashed the new jbx kernel and a KitKat rom the other along with the newest version on safestrap and i have no issues. Everything flashed and installed perfectly and it boots like a champ. So maybe just skip over 4.3 like i did and see if you still have the issues. Sorry didnt see you were trying to flash 4.4. Only thing i can suggest is make sure you have newest safestrap and wipe out the old etc. But im sure everyone already touched on this stuff before me
Click to expand...
Click to collapse
Part of your problem is because you are using SS. If you're BL is unlocked, get rid of SS and use CWM or TWRP. SS is not a real recovery replacement, your stock recovery is still there. That's probably part of the reason you had issues.
possibly but i have 0 issues now so its not a big deal.
I have the stable Cyanogenmod 10.1 installed on my phone now. I'm able to restart my phone without any consequences finally. Yay.
I also tried the cm-11-20131221-NIGHTLY-xt907.zip build. That one would initially start up fine, but a restart gave me the frozen bootloader screen. I tried it twice, redownloading it, too. Gah, it's frustrating not being able to try out different roms, but at least I have one that works!
Well, thanks for the help guys. I'd still like to be able to install other roms, so if anyone else has something I can try, I'll do it!

i9505 always booting into recovery/download mode

I downloaded Imperium ROM from a thread on xda and installed it. I wiped data, wiped cache and dalvik and installed zip. Then I rebooted and it showed a downloading screen, after a little bit of research it's called download mode or ODIN mode. Now what's happening is whenever I try to reboot, it shows the S4 i9505 screen (i think it's called a splash screen, thats what someone called it) and freezes. After about 10-15 seconds, reboots into recovery. I've got CWM installed and I've ran out of ideas. The volume buttons are not being touched and for some reason recovery and download mode are always being booted into, never the OS.
I'm also new so anything I've done wrong, I'd love to know.
CWM recovery is outdated and should not be used anymore. Instead only use TWRP. Flash it trough Odin in the same way you flashed CWM.
You say that you only wiped data, cache and dalvik. You also HAVE to wipe /system. Otherwise the rom will probably not boot.
Lennyz1988 said:
CWM recovery is outdated and should not be used anymore. Instead only use TWRP. Flash it trough Odin in the same way you flashed CWM.
You say that you only wiped data, cache and dalvik. You also HAVE to wipe /system. Otherwise the rom will probably not boot.
Click to expand...
Click to collapse
Update I tried to install albe95's s6 port. I've noticed something and it's that both ended up with Statuc 7 or some word that started with "S" and had the number 7. Googled that and turns out it's bad. I formatted /System and installed the ROM, it worked!
I guess there was just no OS to boot into. Going to try installing Imperium now.
Status 7 errors can occur if the recovery is outdated. What recovery is on the phone?

Unlocked Bootloader, installed TWRP, unable to boot except to recovery

I unlocked the bootloader, installed TWRP all went well, however upon rebooting I was back in recovery not the ROM, no big deal. I wiped data and installed a custom ROM, again all went well, however upon reboot back in recovery. Tried shutdown and restart, same thing. Tried a different ROM, same thing, starting to get worried now, as I do not seem to be able to boot except for into recovery, which I obviously do not want.
Last ditch:
Power, off, <volume> and Power -> start Same bootloader unlocked screen, then ... recovery.
Any suggestions as to what I'm doing wrong?
Thanks,
ERIC
egandt said:
I unlocked the bootloader, installed TWRP all went well, however upon rebooting I was back in recovery not the ROM, no big deal. I wiped data and installed a custom ROM, again all went well, however upon reboot back in recovery. Tried shutdown and restart, same thing. Tried a different ROM, same thing, starting to get worried now, as I do not seem to be able to boot except for into recovery, which I obviously do not want.
Last ditch:
Power, off, <volume> and Power -> start Same bootloader unlocked screen, then ... recovery.
Any suggestions as to what I'm doing wrong?
Thanks,
ERIC
Click to expand...
Click to collapse
Try to flash lazyflasher I may wrong though but that work for me
egandt said:
I unlocked the bootloader, installed TWRP all went well, however upon rebooting I was back in recovery not the ROM, no big deal. I wiped data and installed a custom ROM, again all went well, however upon reboot back in recovery. Tried shutdown and restart, same thing. Tried a different ROM, same thing, starting to get worried now, as I do not seem to be able to boot except for into recovery, which I obviously do not want.
Last ditch:
Power, off, <volume> and Power -> start Same bootloader unlocked screen, then ... recovery.
Any suggestions as to what I'm doing wrong?
Thanks,
ERIC
Click to expand...
Click to collapse
I did the same thing you did, and got stuck where you were. I believe what I had to do was wipe every partition under Advanced Wipe, then copy the ROM over, and then install the ROM.
egandt said:
I unlocked the bootloader, installed TWRP all went well, however upon rebooting I was back in recovery not the ROM, no big deal. I wiped data and installed a custom ROM, again all went well, however upon reboot back in recovery. Tried shutdown and restart, same thing. Tried a different ROM, same thing, starting to get worried now, as I do not seem to be able to boot except for into recovery, which I obviously do not want.
Last ditch:
Power, off, <volume> and Power -> start Same bootloader unlocked screen, then ... recovery.
Any suggestions as to what I'm doing wrong?
Thanks,
ERIC
Click to expand...
Click to collapse
Wich commands did You use to flash twrp?
Maybe did you flashed it in boot partition and not in recovery partition
Thanks, Trying again this and only this works seems to work.
Last ditch:
Power, off, <volume> and Power -> start Same bootloader unlocked screen, then ... Android
Anything else as in simply turning it on results in recovery. Thus it appears that the Android is correct, it seems to be that the default boot option is set to twrp and not the Android however. Selecting Power, off, <volume> and Power ->Recovery Mode goes to TWRP.
I formated, System, Data, Cache and reinstalled without any change to the way it boots.
I also tried RR 5.8.3, AOKP and both with the same result.
I flashed using fastboot recovery twrp-3.1.0-0-n3-potter.img
ERIC
Did you flashed the opt out dm verity? Read the guide carefully.
Enviado desde mi Moto G (5) mediante Tapatalk
maybr u have erased ur rom, flash stock rom
Maybe u have wiped ur stock os. go n flash stock rom n then try again
Got it working.
Restored stock and then re-fashed TWRP, since had the issue (i have 2 phones, on one the second time I flashed TRWP, but the other went fine). Repeated again on the second phone now all is well.
Thanks,
ERIC
egandt said:
Got it working.
Restored stock and then re-fashed TWRP, since had the issue (i have 2 phones, on one the second time I flashed TRWP, but the other went fine). Repeated again on the second phone now all is well.
Thanks,
ERIC
Click to expand...
Click to collapse
Hi, where can I get the stock rom, and what is the procedure to install it in fast boot? I can only boot into recovery mode as well.
Thanks

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