[Q] stuck on nexus logo after 4.3 update - Nexus 7 Q&A, Help & Troubleshooting

i have a rooted nexus 7 32gb 3G model running 4.2.2. rooted using nexus 7 toolbox and was running stock rom and kernel with TWRP RECOVERY and unlocked bootloader
last night i got the update for 4.3 and i agreed to reboot n install the update. it booted into twrp recovery and installed the update n after finishing it did not boot rather it came bak to the menu of twrp i manually pressed boot system n it asked to swipe to fix permissions for su binary i swiped the button and it just booted and and came to the nexus logo and was stuck there. i thought first time it might take time left it for half an hour was just stuck there and I switched it off n put it bak on after sometime still doesnt go any further from the logo.
if i had a backup i would hav just restored it but the update started off directly i didnt get an option to backup n i didnt backup before doing it=|
please tell me how to fix it. i dont mind going back to 4.2.2 but i need my data i dont want to factory reset
thanks in advance!

Have the same problem here..

please someone help soon=(

Same here.
How can i get a new Custom Rom on my Nexus 7 if it doesn't start?

i have similar problem when flashed bad radio to my phone but i can start recovery/
but nexus start very fast and i can not enter to recovery
so sad, my device only 2 weeks old and i crack the void.

sambistt said:
i have similar problem when flashed bad radio to my phone but i can start recovery/
but nexus start very fast and i can not enter to recovery
so sad, my device only 2 weeks old and i crack the void.
Click to expand...
Click to collapse
if ur able to boot to recovery u can get it bak dont worry! just hold down power button and volume down till the device comes into fast boot. and if ur stuck at the logo and not able to shut down (by removing the battery on other phones) just hold down power button and volume down button for a while i think its 5 seconds but it could be a little more not sure. hold it down till u boot into fast boot and in fast boot u can shut it down or enter the recovery.
and since u say ur device is new n if u dont hav much data then u will be able to simple flash the stock rom and hav a fresh new device.
use this toolbox it'll help u do everything. but im not very sure u might loose all the data on it
http://forum.xda-developers.com/showthread.php?t=1809195

i can not enter fastboot - if i held power button and volume - it only wake up and show Google logo - and after 15 SECOND OF HELDING - GO TO apx MODE
google nexus toolkit cAN NOT help - the device start to logo and ADB or FASTBOOT can not detect device

shoaib30 said:
i have a rooted nexus 7 32gb 3G model running 4.2.2. rooted using nexus 7 toolbox and was running stock rom and kernel with TWRP RECOVERY and unlocked bootloader
last night i got the update for 4.3 and i agreed to reboot n install the update. it booted into twrp recovery and installed the update n after finishing it did not boot rather it came bak to the menu of twrp i manually pressed boot system n it asked to swipe to fix permissions for su binary i swiped the button and it just booted and and came to the nexus logo and was stuck there. i thought first time it might take time left it for half an hour was just stuck there and I switched it off n put it bak on after sometime still doesnt go any further from the logo.
if i had a backup i would hav just restored it but the update started off directly i didnt get an option to backup n i didnt backup before doing it=|
please tell me how to fix it. i dont mind going back to 4.2.2 but i need my data i dont want to factory reset
thanks in advance!
Click to expand...
Click to collapse
If you can go into the bootloader, go to recovery and flash CleanROM or CM10.2 or even a 4.2.2 ROM. Seems to be your only option now. Also flash an appropriate kernel for the ROM right after the flash.
Try a dirty flash at first.

i can - it freeze on logo and reboot after pressing on power and volume

sgt. meow said:
If you can go into the bootloader, go to recovery and flash CleanROM or CM10.2 or even a 4.2.2 ROM. Seems to be your only option now. Also flash an appropriate kernel for the ROM right after the flash.
Try a dirty flash at first.
Click to expand...
Click to collapse
yes i can get into bootloader and recovery. and i hav a few questions...
1. if i flash another rom will my files on the virtual sd in the internal memory get wiped?
2. there is option for backup in TWRP recovery i can backup DATA SYSTEM CACHE and usb otg.
after flashing a new rom can i restore the backup for DATA and get bak the apps?
3. is there any way i can copy the files in the internal memory saved in the virtual SD to my comp or anywhere else through recovery or bootloader? 4. there is an option for factory reset in TWRP recovery which says it will clear data and wipe cache and will not clear internal data. i just want to be sure if the files in the virtual sd wont get deleted if i do this? and by using this factory reset option will i be able to fix the problem?

sambistt said:
i can not enter fastboot - if i held power button and volume - it only wake up and show Google logo - and after 15 SECOND OF HELDING - GO TO apx MODE
google nexus toolkit cAN NOT help - the device start to logo and ADB or FASTBOOT can not detect device
Click to expand...
Click to collapse
oh im so sorry=| i didnt know wat apx mode was just read abt it. try giving it to google and check if theyll fix it? they might charge for it though?

shoaib30 said:
yes i can get into bootloader and recovery. and i hav a few questions...
1. if i flash another rom will my files on the virtual sd in the internal memory get wiped?
2. there is option for backup in TWRP recovery i can backup DATA SYSTEM CACHE and usb otg.
after flashing a new rom can i restore the backup for DATA and get bak the apps?
3. is there any way i can copy the files in the internal memory saved in the virtual SD to my comp or anywhere else through recovery or bootloader? 4. there is an option for factory reset in TWRP recovery which says it will clear data and wipe cache and will not clear internal data. i just want to be sure if the files in the virtual sd wont get deleted if i do this? and by using this factory reset option will i be able to fix the problem?
Click to expand...
Click to collapse
1. If by virtual sd you mean Internal Storage (the place where you copy files to normally via PC), no. It won't wipe anything there.
2. Although this is possible, it is highly discouraged.
3. From bootloader or recovery you can try adb pull to grab a backup of your sdcard's contents. Don't do this unless you are 100% sure you know what you are doing.

sgt. meow said:
1. If by virtual sd you mean Internal Storage (the place where you copy files to normally via PC), no. It won't wipe anything there.
2. Although this is possible, it is highly discouraged.
3. From bootloader or recovery you can try adb pull to grab a backup of your sdcard's contents. Don't do this unless you are 100% sure you know what you are doing.
Click to expand...
Click to collapse
ok i shall avoid restoring backup of data. so ill factory rest it from twrp recovery? it should fix the problem right?
and by virtual sd i meant the internal storage where we copy files from the comp sorry i didnt know how to descirbe it...
and no im not so good at adb so ill avoid tht since u told nothing in the internal memory gets wiped

Go to TWRP>Wipe. And then just swipe. Don't try Advanced or Internal Storage or whatever there is. Should do the job.

sgt. meow said:
Go to TWRP>Wipe. And then just swipe. Don't try Advanced or Internal Storage or whatever there is. Should do the job.
Click to expand...
Click to collapse
im so sorry one last question. if i factory reset n restore only data to get bak the apps.. if it works well n good if it doesnt ill factory reset again.. but does restoring data cause damage tht could brick my device?

If you factory reset, only stuff in /data will get wiped (game saves etc.) Not your sdcard stuff though.
And restoring a data backup from a different ROM may lead to bootloops.

sgt. meow said:
If you factory reset, only stuff in /data will get wiped (game saves etc.) Not your sdcard stuff though.
And restoring a data backup from a different ROM may lead to bootloops.
Click to expand...
Click to collapse
now im factory restting so rom wont change so restoring data i mean the saved games etc itself should work? its just for info im mostly gonna stick with just factory reset for now... doing it now

factory reset didnt work
i did a factory reset but it still isnt comin on=(still stuck in the logo... anything else i can do? i dont want to flash a custom rom can i flash the stock 4.2.2 rom? n not loose anything from internal storage?
edit: to flash any rom how to copy the zip file into the internal storage?

i checked in the nexus 7 toolbox to flash stock image it tells the internal memory will be erased as well=| any other method to flash stock rom?
i havent tried it but my friend told me tht he can mount his external sd in recovery and hes able to view the files on the comp. is it possible to view files of the internal storage on the comp n copy them onto a comp. ?

shoaib30 said:
i checked in the nexus 7 toolbox to flash stock image it tells the internal memory will be erased as well=| any other method to flash stock rom?
i havent tried it but my friend told me tht he can mount his external sd in recovery and hes able to view the files on the comp. is it possible to view files of the internal storage on the comp n copy them onto a comp. ?
Click to expand...
Click to collapse
how can i add a rom if i cant mount my n7 to my computer, I have twrp and all but i never had a custom rom to begin with and im stuck on the N7 logo screen

Related

Solved:I guess I'm stuck in boot loop....now what?

Ok guys..... newbie here .... literally I'm new to Boot unlocking, root, Flashing etc.
Anyway I have followed this forum for so long that I decided to take plunge yesterday and get my hands dirty.
Here is what I did:
Unlock bootloader, root and install recovery on my Atrix 4G. Atrix was @ 2.3.4 and 4.5.91 during unlocking & root.
Rebooted the phone and everything seems to be in place. Atrix loaded like the way I bought it 7 months back. No problem until now.
Also created a restore folder on my external SD. Worked fine and was successful in creating backup with time stamp
Now here are my steps and subsequent issues that I'm facing:
1. Downloaded CM9 zip file from this thread(http://forum.xda-developers.com/showthread.php?t=1500535) along with Gapps to my external SD
2.Entered recovery mode during bootup and tried to flash CM9 and Gapps. Flashing seem to have gone well and completed (note I did not do clear data, clear cache or clear dalvik cache under advanced options being a newbie)
3. Reboot the phone and can only see red Moto logo and unlocked on top. Left for about 5 minutes and nothing happened.
4.Did a battery pull and entered recovery mode. wiped data, cache & cleared dalvik cache
5.Went to Install zip from sdcard option and tried to reflash CM9. Flashing seems to have gone well and completed
6. Reboot phone and again can only see Moto Red logo with unlock on top and nothing more.
7.Battery pull followed by recovery. But This time I tried to restore from my external SD. also wiped data, cache & dalvik cache
8.Restore took about 3 minutes and completed.
9.Reboot the phone. Now the phone boots and goes to Rethink possible screen and get sstuck.
10. Left it for 1 hr....nothing.
11.tried steps 7-9 again and still stuck in "Rethink possible" screen during boot.
What did I do wrong? Did I soft brick the phone? I can still enter recovery mode and read my internal and external SD and can see all files. i hope I didn't brick my phone doing this. If I did, I would regret!
Here are my options:
1.Try a stable ROM like CM7 and see what happens. I didn't want to do too much damage so haven't tried this option yet.
2.I know there is a way to hide 'unlock' during boot up (if someone can point to it obviously). Hide the 'unlock' and return the phone to ATT and tell them that phone would not boot after 2.3.6 update and get a refurbished one
Please let me know what your thoughts are. I'm currently crapping on my pants
Edit: I just tried Newtrino rom and stuck @ Moto screen which says unlock.
Edit 3/4/2012: Please go to the last post for the solution. Tenfar's CWM is old and cannot deal with latest ROMs. Use ROMRACERS latest CWM or touch based Koush's CWM for future ROM flashing.
Old CWMs will give you sleepless nights!
Ok tried restore again after wiping data, cache & dalvik cache.
Now after reboot, My Moto Logo screen says unlock and just starts flashing.
I can still get into recovery......
can someone please help me......
What you can do is: install a "stable" ROM of Gingerbread:
--Go in recovery, put a .zip of the ROM on your sdcard (with your computer), and after wiping data, install it .zip.
--Or you install a new ROM with fastboot
Anyway, be careful with your battery, because if it is empty, with no ROM on your phone, it'll be crap!
vsg005 said:
What you can do is: install a "stable" ROM of Gingerbread:
--Go in recovery, put a .zip of the ROM on your sdcard (with your computer), and after wiping data, install it .zip.
--Or you install a new ROM with fastboot
Anyway, be careful with your battery, because if it is empty, with no ROM on your phone, it'll be crap!
Click to expand...
Click to collapse
thank you for your response. However I tried that already Nutrino GB ROM. Again, I would go to 'M' screen which says unlocked and its stuck there for ever.
I used tenfar's CWM. Not sure if I need to use any other CWM. Also since my phone doesn't boot, I'm not sure how I can install any other CWM
Masterguy said:
thank you for your response. However I tried that already Nutrino GB ROM. Again, I would go to 'M' screen which says unlocked and its stuck there for ever.
I used tenfar's CWM. Not sure if I need to use any other CWM. Also since my phone doesn't boot, I'm not sure how I can install any other CWM
Click to expand...
Click to collapse
Don't worry, soft bricks are easy to recover on the Atrix thanks to us being able to access fastboot.
For flashing a new recovery:
While your phone is off, press Volume Up + Power to power up, then release when a menu appears on your screen and navigate with volume down until you see Fastboot, select it with the volume up key.
Get the necessary files for fastboot, place them all in a folder called "moto" in your C: drive, and type in the following in a cmd window (assuming you're using windows and that the recovery image is called recovery.img):
C:/Moto> fastboot flash recovery recovery.img
C:/Moto> fastboot -w
C:/Moto> fastboot reboot
Now access your recovery wipe dalvik cache, cache, factory reset and then flash a new ROM. It SHOULD boot without issues. I personally use Koush's Clockworkmod Touch, also remember that Neutrino tends to get "stuck" sometimes after the first attempt to boot and requires a battery pull and then you try to boot again. (It takes a while)
littleemp said:
Don't worry, soft bricks are easy to recover on the Atrix thanks to us being able to access fastboot.
For flashing a new recovery:
While your phone is off, press Volume Up + Power to power up, then release when a menu appears on your screen and navigate with volume down until you see Fastboot, select it with the volume up key.
Get the necessary files for fastboot, place them all in a folder called "moto" in your C: drive, and type in the following in a cmd window (assuming you're using windows and that the recovery image is called recovery.img):
C:/Moto> fastboot flash recovery recovery.img
C:/Moto> fastboot -w
C:/Moto> fastboot reboot
Now access your recovery wipe dalvik cache, cache, factory reset and then flash a new ROM. It SHOULD boot without issues. I personally use Koush's Clockworkmod Touch, also remember that Neutrino tends to get "stuck" sometimes after the first attempt to boot and requires a battery pull and then you try to boot again. (It takes a while)
Click to expand...
Click to collapse
Many people also seem to have suggested RACEROM CWM. Which one would you suggest? I'm so nervous about all this now. Just have this butterfly in my stomach
flash the latest recovery and wipe everything in recovery and flash neutrino again. It should work after that. try neutrino 2.2 though. 2.5 still has it's kinks.
1st off, relax. It's difficult to brick your phone from this point Just don't get any bright ideas with .sbfs lol.
As others have said, make sure you're on latest recovery.
Question: are you installing from internal or external SD? Internal is recommended for flashing most ROMs.
Sent from my MB860 using xda premium
Masterguy said:
Many people also seem to have suggested RACEROM CWM. Which one would you suggest? I'm so nervous about all this now. Just have this butterfly in my stomach
Click to expand...
Click to collapse
As someone else said, the ONLY thing you should NEVER do is flash an .sbf or go through an OTA update, that's a surefire way to hard brick your phone. From this point on it's VERY DIFFICULT to completely brick your phone using software only.
RomRacer's CWM is based I think on v5.0.2.7? Koush's latest recovery is v5.8.1.5. I honestly couldn't name any tangible differences other than the touch interface, which is the reason I use it in the first place. (I hate mashing volume keys like a madman) It really doesn't matter which CWM you use, but when I soft bricked my phone I recovered with CWM Touch.
I would recharge your battery to 100% before trying to recover it, as that is one less headache to worry about, but if your phone starts saying 'Battery is too low to flash', do not panic, you only need a USB cable you don't mind sacrificing (doesn't have to be new). I will go into detail in case you actually need to do this.
Just make sure you use the fastboot -w command and wipe EVERYTHING through CWM before trying to flash anything else.
Solved:boot loop issue
littleemp said:
As someone else said, the ONLY thing you should NEVER do is flash an .sbf or go through an OTA update, that's a surefire way to hard brick your phone. From this point on it's VERY DIFFICULT to completely brick your phone using software only.
RomRacer's CWM is based I think on v5.0.2.7? Koush's latest recovery is v5.8.1.5. I honestly couldn't name any tangible differences other than the touch interface, which is the reason I use it in the first place. (I hate mashing volume keys like a madman) It really doesn't matter which CWM you use, but when I soft bricked my phone I recovered with CWM Touch.
I would recharge your battery to 100% before trying to recover it, as that is one less headache to worry about, but if your phone starts saying 'Battery is too low to flash', do not panic, you only need a USB cable you don't mind sacrificing (doesn't have to be new). I will go into detail in case you actually need to do this.
Just make sure you use the fastboot -w command and wipe EVERYTHING through CWM before trying to flash anything else.
Click to expand...
Click to collapse
Thanks I was able to fix my boot up issue using ROMRACERS CWM. I didn't use any command prompt or anything. I just downloaded zip file from this thread, entered recovery mode -->Install Zip from SD card --> Chose ROMRACERS zip --> it automatically flashed the recovery and I then rebooted recovery under advanced options.
After that Wiped data,cache & Dalvik Cache and proceeded to install CM9 and it booted up up flawlessly.
I'm kind of surprised that tenfar didn't add a not to use his CWM as the latest ROMs use latest ext format.
That seems to be issue. However, I'm pleased with your guidance and final output. Thanks a lot dude.
Masterguy said:
Thanks I was able to fix my boot up issue using ROMRACERS CWM. I didn't use any command prompt or anything. I just downloaded zip file from this thread, entered recovery mode -->Install Zip from SD card --> Chose ROMRACERS zip --> it automatically flashed the recovery and I then rebooted recovery under advanced options.
After that Wiped data,cache & Dalvik Cache and proceeded to install CM9 and it booted up up flawlessly.
I'm kind of surprised that tenfar didn't add a not to use his CWM as the latest ROMs use latest ext format.
That seems to be issue. However, I'm pleased with your guidance and final output. Thanks a lot dude.
Click to expand...
Click to collapse
Thank you sooo much. I was having this exact problem. I did what you suggested and my phone works. Thanks!

[Q] All methods of factory/hard reset seem to work, but then boots into old system

I'm having the weirdest problem and I'm wondering whether it is hardware or software. I have searched everywhere and only found one person with a similar situation and he had already sent it back for repair before anyone responded with things for him to try.
My 16gb Nexus 7 is rooted/unlocked using the Nexus Root Toolkit and at the latest OTA version. It had been working fine for months. Suddenly one day I had serious problems (which I can discuss if anyone cares, but I don't think the original problems are relevant at this point.) I gave up troubleshooting and decided to do a factory reset. But no matter what method I do, the next time I boot the device it comes back into my same buggy system and nothing was wiped or reset at all. All of these methods appear to work and give the normal messages you would expect, but then nothing changed. It's like the Flash ram is somehow set to read-only so attempts to write to it are failing.
What I have tried:
Settings Factory Data Reset and press the Erase Everything button. The tablet pauses a while, then shuts down and reboots. The old system comes back.
I go into recovery mode, choose function wipe data/factory reset, scroll down to Yes to confirm it. A bunch of progress messages show on the screen that the partitions are being formatted. I boot afterwards and the old system comes back.
I follow all the steps in articles like this: http://forum.xda-developers.com/showthread.php?t=1907796
Every fastboot command completes normally with progress messages showing that it worked. I reboot and the old system comes back.
Here is another clue: The fastboot oem lock command completes normally, but nothing changes. The padlock icon at the next boot is still open.
That's why I say that the tablet is acting as though the Flash memory is set to read-only somehow because nothing ever changes. Is it possible that this is a hardware problem, or is there something else I can do in software?
Bump One for OP
hope your problem gets solved...
I go into recovery mode, choose function wipe data/factory reset, scroll down to Yes to confirm it. A bunch of progress messages show on the screen that the partitions are being formatted. I boot afterwards and the old system comes back.
Click to expand...
Click to collapse
1. If you wipe this way and then do not install another rom, then the old system will just reload.
2. Which recovery are you using TWRP or CWM? Maybe try an alternative recovery?
3. Go into recovery/mounts and storage/ then select format system and then install another rom such as stock and see what happens..
killall said:
1. If you wipe this way and then do not install another rom, then the old system will just reload.
2. Which recovery are you using TWRP or CWM? Maybe try an alternative recovery?
3. Go into recovery/mounts and storage/ then select format system and then install another rom such as stock and see what happens..
Click to expand...
Click to collapse
1. I guess my wording was ambiguous. When I said that the old system comes back, I didn't mean only that the old OS comes back, but that EVERYTHING comes back immediately including all my apps, settings, wallpaper, widgets, everything looks like it always did. I don't get the first-time screens inviting me to log in, or anything like that. The system boots completely normally as though I hadn't used those methods of wiping the user data.
Also one of the things I tried was loading a new system using fastboot commands and the new system seemed to get loaded OK. But I reboot and the buggy system is back and my user data has not been wiped.
2. I'm not sure what you mean and will research that later this evening. For now, I can tell you that I used the Nexus Root Toolkit and I am using whatever it installed.
3. I'm not sure what you mean, but will research that and if I can figure it out, I will try it this evening.
Is it a clue that the command "fastboot oem lock" seems to work, but the lock status doesn't change?
What I am trying to say (very badly) is the system on your phone will hold all your settings along with the OS. When you factory reset/wipe data, it will clear everything out....but, if you then reboot the phone, it will have to reload the old OS as it has nothing to load otherwise. This will include all your previous apps and settings.
When you have wiped all your data, you need to install another 'system/rom' to allow the phone to boot it. Or as I said, it will just reboot the old one.
Try looking for a rooted stock rom in a zip file like this one and put it on your sd card. When you have entered recovery and wiped data/factory reset, then select install from sd card, find the zip and select. The recovery will then flash it and when you reboot, you should be at the setup pages.
Using the Nexus toolkit and ADB is challenging at the best of times. Maybe it is easier if you just use the recovery method as explained above.
killall said:
What I am trying to say (very badly) is the system on your phone will hold all your settings along with the OS. When you factory reset/wipe data, it will clear everything out....but, if you then reboot the phone, it will have to reload the old OS as it has nothing to load otherwise. This will include all your previous apps and settings.
When you have wiped all your data, you need to install another 'system/rom' to allow the phone to boot it. Or as I said, it will just reboot the old one.
Try looking for a rooted stock rom in a zip file like this one and put it on your sd card. When you have entered recovery and wiped data/factory reset, then select install from sd card, find the zip and select. The recovery will then flash it and when you reboot, you should be at the setup pages.
Using the Nexus toolkit and ADB is challenging at the best of times. Maybe it is easier if you just use the recovery method as explained above.
Click to expand...
Click to collapse
When I go into the recovery mode at boot time, the menu says I am using "Android system recovery <3e>"
According to all documentation I have seen, erasing the user partition is all I should need to do to wipe out all of my data, and this works perfectly on a different tablet that I have. I really shouldn't need to do anything else, which is why my situation is so strange.
The Nexus 7 doesn't have an SD card slot so I can't do the things you are saying that involve installing things from sd. Maybe there is a way to do the same thing via the portion of Flash that simulates an sd card, but the recovery menus don't have any way to do that, at least not that I can find.
I saw that you are rooted then I assumed you were using a custom recovery like Clockworkmod or TWRP.
When I wrote SD I meant the internal storage, sorry for the confusion.
I would be flashing a recovery again, it seems to be causing the problem. You can do this through Nexus tools.
killall said:
I saw that you are rooted then I assumed you were using a custom recovery like Clockworkmod or TWRP.
When I wrote SD I meant the internal storage, sorry for the confusion.
I would be flashing a recovery again, it seems to be causing the problem. You can do this through Nexus tools.
Click to expand...
Click to collapse
When you say to use "Nexus tools", do you mean the the tools that are part of the Nexus Root Toolkit? I did use those tools to format and rebuild the recovery partition, and it didn't help at all.
If you mean tools that I need to install as apps within Android, that isn't possible at the moment because the tablet is so unstable that when I reboot, I get all my old stuff for a few seconds so I know nothing changed, and then it reboots before I have a chance to do anything.
If you mean that I should mount the Android flash ram as a folder on my PC, I only seem to be able to do that for the few seconds that the system is booted and then the folder drops off. The only mode where I can keep the tablet powered on and stable is the boot menu and the recovery menu. Is there a way to mount the drive at that time?
Phonetrips said:
When you say to use "Nexus tools", do you mean the the tools that are part of the Nexus Root Toolkit? I did use those tools to format and rebuild the recovery partition, and it didn't help at all.
If you mean tools that I need to install as apps within Android, that isn't possible at the moment because the tablet is so unstable that when I reboot, I get all my old stuff for a few seconds so I know nothing changed, and then it reboots before I have a chance to do anything.
If you mean that I should mount the Android flash ram as a folder on my PC, I only seem to be able to do that for the few seconds that the system is booted and then the folder drops off. The only mode where I can keep the tablet powered on and stable is the boot menu and the recovery menu. Is there a way to mount the drive at that time?
Click to expand...
Click to collapse
Fast boot a custom recovery. Fastboot recovery c:/path/recovery.IMG
Path being whatever path you have to the recovery you chose to download. Then wipe data/factory reset, maybe wipe cache and dalvik since you're there. Then reboot, see what happens. Still buggy, download another ROM, there are stock-ish ones out there, or you can choose cm or AOKP
Sent from my Nexus 7 using xda app-developers app
VonEsch said:
Fast boot a custom recovery. Fastboot recovery c:/path/recovery.IMG
Path being whatever path you have to the recovery you chose to download. Then wipe data/factory reset, maybe wipe cache and dalvik since you're there. Then reboot, see what happens. Still buggy, download another ROM, there are stock-ish ones out there, or you can choose cm or AOKP
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Iv'e done all that and nothing changes whatsoever. The problem isn't that I have a buggy Android system, but rather that all commands to format and erase that system are ignored.
Actually I was wrong, I never did load a recovery image like you said, although I did at one point use one that the Nexus Root Toolkit installed.
So I found a recovery image, downloaded it, and did this:
fastboot flash recovery openrecovery-twrp-2.3.3.0-grouper.img
But nothing changes, partly because maybe I don't know what to do with this thing that I just loaded. If I use the menu to go into recovery mode, I get the normal recovery menu I have always gotten.
Phonetrips said:
Actually I was wrong, I never did load a recovery image like you said, although I did at one point use one that the Nexus Root Toolkit installed.
So I found a recovery image, downloaded it, and did this:
fastboot flash recovery openrecovery-twrp-2.3.3.0-grouper.img
But nothing changes, partly because maybe I don't know what to do with this thing that I just loaded. If I use the menu to go into recovery mode, I get the normal recovery menu I have always gotten.
Click to expand...
Click to collapse
Flash the cwm one, maybe that will work?
Sent from my Galaxy Nexus using xda app-developers app
Phonetrips said:
Iv'e done all that and nothing changes whatsoever. The problem isn't that I have a buggy Android system, but rather that all commands to format and erase that system are ignored.
Click to expand...
Click to collapse
VonEsch said:
Flash the cwm one, maybe that will work?
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Before I try a different one, can you please tell me what is supposed to happen after I give that fastboot command to flash the recovery image, Should the tablet go into that recovery manager immediately, or do I need to do something first to make it show up?
I went ahead and found/downloaded the cwm one. The same thing happened: I don't see it running and if I go into recovery mode I get the normal recovery, not this one.
killall said:
What I am trying to say (very badly) is the system on your phone will hold all your settings along with the OS. When you factory reset/wipe data, it will clear everything out....but, if you then reboot the phone, it will have to reload the old OS as it has nothing to load otherwise. This will include all your previous apps and settings.
When you have wiped all your data, you need to install another 'system/rom' to allow the phone to boot it. Or as I said, it will just reboot the old one.
Click to expand...
Click to collapse
Sorry, but this is completely wrong. When you do a factory reset, it wipes /data and /cache, which doesn't affect the OS at all because the OS resides on the /system partition. When you do a factory reset and reboot, you will run into the initial setup screen for whatever ROM you have installed. No user data/apps will be present.
Phonetrips said:
Before I try a different one, can you please tell me what is supposed to happen after I give that fastboot command to flash the recovery image, Should the tablet go into that recovery manager immediately, or do I need to do something first to make it show up?
I went ahead and found/downloaded the cwm one. The same thing happened: I don't see it running and if I go into recovery mode I get the normal recovery, not this one.
Click to expand...
Click to collapse
This seems really screwy. I'd say either your device is defective, or... Well I don't really know what else it could be. The fact that fastboot commands fail is a good indicator that something is screwed up. Have you tried wiping things through fastboot? It may be worth a shot, just know how to flash a ROM through it when you're done. I'm talking "fastboot erase -----" where ---- is replaced by system, data, or whatever. Just DO NOT erase the bootloader. Boot, however, is fine.
If all of this fails, it would seem that the device memory is defective.
About your recovery question, it will only go into recovery when you tell it to either from bootloader or ADB. And stock Android will try to remove CWM, so first time you need to go to recovery straight from the bootloader and let it make itself permanent when it asks.
Sent from my Nexus 7 using Tapatalk HD
korockinout13 said:
Sorry, but this is completely wrong. When you do a factory reset, it wipes /data and /cache, which doesn't affect the OS at all because the OS resides on the /system partition. When you do a factory reset and reboot, you will run into the initial setup screen for whatever ROM you have installed. No user data/apps will be present.
Yes, this is what is supposed to happen, but on my machine when I do all those things, there is absolutely no change and the system continues to boot exactly as it was.
This seems really screwy. I'd say either your device is defective, or... Well I don't really know what else it could be. The fact that fastboot commands fail is a good indicator that something is screwed up. Have you tried wiping things through fastboot? It may be worth a shot, just know how to flash a ROM through it when you're done. I'm talking "fastboot erase -----" where ---- is replaced by system, data, or whatever. Just DO NOT erase the bootloader. Boot, however, is fine.
If all of this fails, it would seem that the device memory is defective.
About your recovery question, it will only go into recovery when you tell it to either from bootloader or ADB. And stock Android will try to remove CWM, so first time you need to go to recovery straight from the bootloader and let it make itself permanent when it asks.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
I have used fastboot erase ---- and fastboot format --- for system and everything else. Whether or not I flash new code to those partitions, all of this is ignored and the system continues to boot as it always has, with all my stuff.
After flashing the alternate recovery images, absolutely nothing changes when I choose Recovery Mode from the fastboot menu.
I talked to Google Play support and they sending out a replacement one. They never asked whether I had ever unlocked or rooted it and I didn't volunteer anything, just told them the symptoms I am having. But I have to send the old one back after I receive the new one, and there is a chance they won't accept if for warranty service when they see it,
Phonetrips said:
I talked to Google Play support and they sending out a replacement one. They never asked whether I had ever unlocked or rooted it and I didn't volunteer anything, just told them the symptoms I am having. But I have to send the old one back after I receive the new one, and there is a chance they won't accept if for warranty service when they see it,
Click to expand...
Click to collapse
That is true, since you can't change anything, they will probably know you voided the warranty. The only thing you could do is brick it permanently by erasing the bootloader... Not sure if that would work/help.
Sent from my Nexus 7 using Tapatalk HD

[Q]Wont boot after failed 4.4 OTA Update (Bootloader Unlocked, CWR)

Hi guys,
I unlocked my Bootloader, installed Clockwork Recovery a while back. Still had Vanilla Android on it.
Today I updated it, there was an error shown in the Clockwork recovery during the update, I rebooted the device.
Now I am stuck in the 4.4 Bootscreen.
How can I get a Recovery Image on my Phone now? (Booting in Recovery works without any issues)
When I reset my device is all the data in the sdcard folder gone? If so is there a way to back some of it up now?
Thanks
acidr4in said:
Hi guys,
I unlocked my Bootloader, installed Clockwork Recovery a while back. Still had Vanilla Android on it.
Today I updated it, there was an error shown in the Clockwork recovery during the update, I rebooted the device.
Now I am stuck in the 4.4 Bootscreen.
How can I get a Recovery Image on my Phone now? (Booting in Recovery works without any issues)
When I reset my device is all the data in the sdcard folder gone? If so is there a way to back some of it up now?
Thanks
Click to expand...
Click to collapse
Its best to do a clean flash and delete all your data. Phone vs Pics? I'd take the phone. Besides, some stuff is backed up by Google servers. Follow this:
http://forum.xda-developers.com/showthread.php?t=2010312
You can't update OTA while having cwm. OTA can only be completed using stock recovery or twrp recovery. Cwm haven't had this ability yet. Just follow the guide given in a post above and flash kitkat factory images. All your problems will be solved. Or, you can use this guide ( http://forum.xda-developers.com/showthread.php?t=2527142 ) and delete the -w to save your data.
For your second question, if you factory reset using stock recovery, then yes, it will wipe clean your sd card. If you reset using cwm/twrp, then no, it won't wipe your sd card and your pics, music will all still be intact.
arffrhn said:
You can't update OTA while having cwm. OTA can only be completed using stock recovery or twrp recovery. Cwm haven't had this ability yet. Just follow the guide given in a post above and flash kitkat factory images. All your problems will be solved. Or, you can use this guide ( http://forum.xda-developers.com/showthread.php?t=2527142 ) and delete the -w to save your data.
For your second question, if you factory reset using stock recovery, then yes, it will wipe clean your sd card. If you reset using cwm/twrp, then no, it won't wipe your sd card and your pics, music will all still be intact.
Click to expand...
Click to collapse
thanks both of you i kept using this method, -w didnt seem to work properly so I wiped it comleetly now it boots up propperly
thanks again
acidr4in said:
thanks both of you i kept using this method, -w didnt seem to work properly so I wiped it comleetly now it boots up propperly
thanks again
Click to expand...
Click to collapse
How did you wipe your phone completely? I actually have the same problem you had.
aznpro said:
How did you wipe your phone completely? I actually have the same problem you had.
Click to expand...
Click to collapse
nvm, i figured it out.

OS wiped accidentally from TWRP recovery

I accidentally wiped the OS from advanced wipe option. How do I get my phone to work again. I tried to operate adb sideload from recovery but it failed. I have downloaded the stock rom but I do not know how to install it.
Please help.
Thanks.
Kalaxy said:
I accidentally wiped the OS from advanced wipe option. How do I get my phone to work again. I tried to operate adb sideload from recovery but it failed. I have downloaded the stock rom but I do not know how to install it.
Please help.
Thanks.
Click to expand...
Click to collapse
Just flash it from custom recovery, so download it into ur phone go to recovery and simply flash it and all should be good.
Sent from my Nexus 6P using Tapatalk
Exiwolfman said:
Just flash it from custom recovery, so download it into ur phone go to recovery and simply flash it and all should be good.
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
How do I download it to my phone if I cannot boot into it. Is there any way I can copy a zip file (rom) onto the phone's internal memory.?
Your phone should boot into recovery, so as long as it goes on and boots all u do u is use ur pc to move file over and flash it...
Sent from my Nexus 6P using Tapatalk
Kalaxy said:
How do I download it to my phone if I cannot boot into it. Is there any way I can copy a zip file (rom) onto the phone's internal memory.?
Click to expand...
Click to collapse
Boot into bootloader (hold power and system on), flash the though recovery through adb, mount your .zip,, flash your .zip through recovery. Sorry if that doesn't make sense, I've been drinking with the roommates, lol.
Edit: if that doesn't work, send me an IM and I will help you in the morning
Sent from my Huawei Nexus 6P using XDA Labs
Which state is your phone in right now? Is it bootlooping or in recovery?
Sent from my HTC 10 using Tapatalk
The same thing happened to me also! The whole /data (incl. sdcard) partition went corrupt (showed up in TWRP as eemc instead of ext4) & the /vendor failed to mount.
First I had to repair the /data partition (unfortunately the data was lost, as it repaired to a blank partition). I ended up having to go home (was at work at the time) & hook the phone up to the PC & download the ROM & transfer it onto the sdcard. I'm not entirely sure why/how this happened, but I believe it was because a corrupt vendor IMG. Although that theory doesnt include why the /data partition corrupted, it only explains why the /vendor partition failed to mount.
Fastboot flash system system.img
?
removed
I have the same issue. The problem is, that my computer will not recognize the phone in bootloader mode or in recovery mode(MTP enabled). How can install usb drivers without being able to boot into phone OS???? I've tried Nexus Toolkit with no success. Please help?
Have a look here how to load in bootloader, flash, etc.
http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928
So I did the same thing. I'm sitting in TWRP right now but have nothing on the phone. Will I be able to reboot from TWRP into the bootloader and just use the flash-all command to get my phone to boot back up, then just go through the process of custom recovery again?
Basically I'm worried about leaving twrp without an OS. I didn't wipe bootloader did I? Also, I tried to download a ROM and just drag it to internal memory, but I can't seem to add anything to the internal memory.
dbroer91884 said:
So I did the same thing. I'm sitting in TWRP right now but have nothing on the phone. Will I be able to reboot from TWRP into the bootloader and just use the flash-all command to get my phone to boot back up, then just go through the process of custom recovery again?
Basically I'm worried about leaving twrp without an OS. I didn't wipe bootloader did I? Also, I tried to download a ROM and just drag it to internal memory, but I can't seem to add anything to the internal memory.
Click to expand...
Click to collapse
Hi... Just boot into recovery and reflash system.img from the factory image of your choice in bootloader with fastboot. Also flash the vendor image from the same factory image. Done...
Or reflash the whole package with flash all (manually is better imho). But you'll waisted time... Let your phone reboot into Android and you'll have your internal storage back.
5.1 said:
Hi... Just boot into recovery and reflash system.img from the factory image of your choice in bootloader with fastboot. Also flash the vendor image from the same factory image. Done...
Or reflash the whole package with flash all (manually is better imho). But you'll waisted time... Let your phone reboot into Android and you'll have your internal storage back.
Click to expand...
Click to collapse
Thats what I thought. JUst wanted to make sure I could get into bootloader still
dbroer91884 said:
So I did the same thing. I'm sitting in TWRP right now but have nothing on the phone. Will I be able to reboot from TWRP into the bootloader and just use the flash-all command to get my phone to boot back up, then just go through the process of custom recovery again?
Basically I'm worried about leaving twrp without an OS. I didn't wipe bootloader did I? Also, I tried to download a ROM and just drag it to internal memory, but I can't seem to add anything to the internal memory.
Click to expand...
Click to collapse
Yes TWRP has a reboot to bootloader option available. So you can access fastboot via bootloader to flash the necessary images. Just don't forget to re flash TWRP image again in case the stock recovery image was flashed beforehand.
The odd thing was that I did choose that option to boot to bootloader in twrp and it didn't work. I ended up having to reboot to bootloader manually. Not a big deal. All is working now, but thought that was interesting.
Kalaxy said:
I accidentally wiped the OS from advanced wipe option. How do I get my phone to work again. I tried to operate adb sideload from recovery but it failed. I have downloaded the stock rom but I do not know how to install it.
Click to expand...
Click to collapse
Exactly which partitions did you wipe? system? data? Internal Storage (userdata)? all of the above? Hopefully you did not wipe userdata (all your stuff). Were you on a stock ROM? You should be able to d/l the Google image from the same build you were on, extract system and data and fastboot flash those. Don't flash userdata. All your stuff should be there. Follow the tutorial on how to set up fastboot and selectively flash partitions.
---------- Post added at 06:49 AM ---------- Previous post was at 06:44 AM ----------
This thread got hijacked at least 3 times. Let's hope OP can find his way back.
pocholo36 said:
I have the same issue. The problem is, that my computer will not recognize the phone in bootloader mode or in recovery mode(MTP enabled). How can install usb drivers without being able to boot into phone OS???? I've tried Nexus Toolkit with no success. Please help?
Click to expand...
Click to collapse
Try this Hope you get solution to your problem of installing adb and fastboot tools in the correct manner.
I just by mistake deleted my internal storage.
I have TWRP, how do i put the ROM on there and flash it? Someone please help.
Thanks

SM-J510FN Dual Sim Stuck in TWRP recovery mode

Can anyone help, I rooted my phone last year and installed TWRP as part of the process, I did a backup at the time which I have on my SD card
the phone is stuck in the TWRP recovery mode, I can restore from my backup and it goes through fine but then goes back into recovery mode.
This all started when I tried to reset the phone back to factory defaults. I guess I wiped everything. Has anyone got any ideas how to get out of this.
I am not too familiar with TWRP, if anyone could point me in the right direction with a simple step by step guide it would be most appreciated.
RMEROY said:
Can anyone help, I rooted my phone last year and installed TWRP as part of the process, I did a backup at the time which I have on my SD card
the phone is stuck in the TWRP recovery mode, I can restore from my backup and it goes through fine but then goes back into recovery mode.
This all started when I tried to reset the phone back to factory defaults. I guess I wiped everything. Has anyone got any ideas how to get out of this.
I am not too familiar with TWRP, if anyone could point me in the right direction with a simple step by step guide it would be most appreciated.
Click to expand...
Click to collapse
Download a rom
Put it on your sd card
Put a sd card inside your phone
Then flash your rom
SM-J510FN
amirizad_7436 said:
Download a rom
Put it on your sd card
Put a sd card inside your phone
Then flash your rom
Click to expand...
Click to collapse
I did try that, I found a ROM j510fnxxs2aq14_j510fndbt2aq14_dbt.zip with size of 1,379,794Kb
when I tried to install it I get a failure could not find META-INF/com/google/android/update-binary in the zip file
Error installing zip file /external_sd/j510fnxxs2aq14_j510fndbt2aq14_dbt.zip
Which is why I asked for a bit more detailed advice on my problem. If you could point me in the direction of a suitable
ROM for my device which will work I would appreciate it.
RMEROY said:
I did try that, I found a ROM j510fnxxs2aq14_j510fndbt2aq14_dbt.zip with size of 1,379,794Kb
when I tried to install it I get a failure could not find META-INF/com/google/android/update-binary in the zip file
Error installing zip file /external_sd/j510fnxxs2aq14_j510fndbt2aq14_dbt.zip
Which is why I asked for a bit more detailed advice on my problem. If you could point me in the direction of a suitable
ROM for my device which will work I would appreciate it.
Click to expand...
Click to collapse
Was it stock rom??!!
You should install custom rom man first
amirizad_7436 said:
Was it stock rom??!!
You should install custom rom man first
Click to expand...
Click to collapse
I have tried several custom roms non of which work. What I don't understand is why when I restore from my one and only backup
it all goes through ok the size is 6036MB it reports restoring 7 partitions
then restoring boot then restoring data, at the end of it I get restore ok then it goes back to the TWRP recovery screen.
RMEROY said:
I have tried several custom roms non of which work. What I don't understand is why when I restore from my one and only backup
it all goes through ok the size is 6036MB it reports restoring 7 partitions
then restoring boot then restoring data, at the end of it I get restore ok then it goes back to the TWRP recovery screen.
Click to expand...
Click to collapse
Is your stock rom android 5 by any chance?
I don't know what my stock rom is, I can't access anything on my phone apart from the TWRP recovery screen
I do have another SM-J510FN which was bought at the same time which hasn't been rooted running Android 7.1.1
I don't know if that would help to determine what the stock rom is.
RMEROY said:
I don't know what my stock rom is, I can't access anything on my phone apart from the TWRP recovery screen
I do have another SM-J510FN which was bought at the same time which hasn't been rooted running Android 7.1.1
I don't know if that would help to determine what the stock rom is.
Click to expand...
Click to collapse
Sorry I misread the thread I thought it was 2015 model.
So what exactly did you do? Step by step.
Did you wipe anything in twrp?
RMEROY said:
I don't know what my stock rom is, I can't access anything on my phone apart from the TWRP recovery screen
I do have another SM-J510FN which was bought at the same time which hasn't been rooted running Android 7.1.1
I don't know if that would help to determine what the stock rom is.
Click to expand...
Click to collapse
I went into the TWRP recovery mode then to Wipe hoping to do a factory reset, that went through ok and came back into the TWRP recovery mode
I then tried Advanced wipe and ticked all the boxes except micro SD card. Nothing could get me out of the recovery mode so then I tried a restore from
an old backup and that seemed to go through ok, but it still came back to the recovery mode.
If it was me, I would remove the back cover and via TWRP menu turn off phone.
As soon as the screen goes black, remove battery.
Insert battery and power on and see what happens.
Have you tried that? Or how do you turn it off?
Tab_Triggerhappy said:
If it was me, I would remove the back cover and via TWRP menu turn off phone.
As soon as the screen goes black, remove battery.
Insert battery and power on and see what happens.
Have you tried that? Or how do you turn it off?
Click to expand...
Click to collapse
Many times
Okay... when screen goes black have you tried to quickly start pressing the key combination to enter download mode?
For my J500 it's Volume down + Home key + Power (keep pressing until download screen appears) should be same for J510.
If you can enter download you have the option to use Odin and flash either a stock ROM or a newer Recovery.
If you want, you could:
Advance wipe, everything except SD card and OTG Usb. (How much was backed up? Did you tick all boxes?)
Format Data
Restore backup from SD card again
Advance wipe, tick only 2 boxes, Dalvik + Cache
Restart
Report back
Oh, and just to clarify... when you manually go to Restart in TWRP, no matter what option you choose, the phone restarts into TWRP again?
Bare with me, I'm trying to understand and help.
Thats the problem, I can't get out of the TWRP recovery mode so am not able to use Odin, I presume when I did my original backup
I didn't tick all the boxes because it goes through a recovery with no problem I presume the boot sector is missing.
From the TWRP recovery mode I am able to go to install and select a previously downloaded file but then it fails.
I have searched for a suitable ROM to download but am struggling to find one for my phone
Ok, what TWRP version do you have?
Tab_Triggerhappy said:
Ok, what TWRP version do you have?
Click to expand...
Click to collapse
3.0.2-0
RMEROY said:
3.0.2-0
Click to expand...
Click to collapse
You can update your TWRP with a newer version from here:
https://twrp.me/samsung/j5xnlte.html
(Carefully check that I linked to your model!)
.img is what you want to put in your phone. BUT... I haven't done this myself, so it's your call.
In TWRP you choose to install img and locate the file on your SD card.
My thought is that your TWRP is too old for the ROMs you have tried... (anyone please correct me if I'm wrong).
RMEROY said:
Thats the problem, I can't get out of the TWRP recovery mode so am not able to use Odin, I presume when I did my original backup
I didn't tick all the boxes because it goes through a recovery with no problem I presume the boot sector is missing.
From the TWRP recovery mode I am able to go to install and select a previously downloaded file but then it fails.
I have searched for a suitable ROM to download but am struggling to find one for my phone
Click to expand...
Click to collapse
Man it's not a problem what custom rom you downloaded
Juat install it to system cames up then install stock rom via odin
Why you wasting your time??!!
I have the TWRP image file 3.4.0-0 which partition should I be flashing it to Boot or Recovery?
I would hate kill it after getting this far.
in reply to amirizad_7436 I don't understand, I can't install a stock rom via Odin as I can't get out of the TWRP recovery mode.
RMEROY said:
I have the TWRP image file 3.4.0-0 which partition should I be flashing it to Boot or Recovery?
I would hate kill it after getting this far.
in reply to amirizad_7436 I don't understand, I can't install a stock rom via Odin as I can't get out of the TWRP recovery mode.
Click to expand...
Click to collapse
You can. There is an option to reboot download mode from twrp (might be reboot bootloader)
That will put the device into download mode and you can flash with Odin.
Alternatively you could go to advanced wipe and wipe everything like you already did and then just flash a custom ROM. You wiped everything you said and then tried to reboot. That's why it went to twrp because you wiped system, there is no system to boot anymore.
garylawwd said:
You can. There is an option to reboot download mode from twrp (might be reboot bootloader)
That will put the device into download mode and you can flash with Odin.
Alternatively you could go to advanced wipe and wipe everything like you already did and then just flash a custom ROM. You wiped everything you said and then tried to reboot. That's why it went to twrp because you wiped system, there is no system to boot anymore.
Click to expand...
Click to collapse
Wow, that worked, I updated the version of TWRP and then installed a ROM that I downloaded "resurrectionremix-5.8.4-20190821"
and all seems to be working, both sims are recognised and operational all I need now is to get my head around the UI apart from that everything seems
good. Thank you everybody who helped me through this. I almost got to the point of binning an otherwise good phone.
Once again a big thankyou to everyone.

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