Develop Bugs

[Q] Recovering from unusual boot loop

Let me preface this by saying yes I know there are dozens if not more threads on boot loop problems. I have recovered from boot loops before. This is very different.
I rooted my incredible with unrevokedForever and had cyanogen 6 on it. Everything was fine until yesterday I woke up to it in a boot loop, but not the cyanogen boot animation, the white HTC Incredible screen. I can only get to HBOOT, once I try to enter recovery, use an update.zip, or anything after the HBOOT page it goes into its loop. Should I pursue the RUU and find a windows computer or will that not help me?
I think I may have to bite the bullet and buy a new phone. As obviously they will not replace an S-OFF phone. Any help is appreciated.

jenic said:
Let me preface this by saying yes I know there are dozens if not more threads on boot loop problems. I have recovered from boot loops before. This is very different.
I rooted my incredible with unrevokedForever and had cyanogen 6 on it. Everything was fine until yesterday I woke up to it in a boot loop, but not the cyanogen boot animation, the white HTC Incredible screen. I can only get to HBOOT, once I try to enter recovery, use an update.zip, or anything after the HBOOT page it goes into its loop. Should I pursue the RUU and find a windows computer or will that not help me?
I think I may have to bite the bullet and buy a new phone. As obviously they will not replace an S-OFF phone. Any help is appreciated.
Click to expand...
Click to collapse
As long as you can still get into HBOOT and Recovery, you should be okay. Your best bet is to get the RUU and go back to stock/s-on, then re-root/s-off (if you want). I had to do this once, and it's pretty straight forward. Just do a search for Bezerker7's Ultimate Get Back to Stock Thread. It has all the info you'll need on how to do it.

RMarkwald said:
As long as you can still get into HBOOT and Recovery, you should be okay. Your best bet is to get the RUU and go back to stock/s-on, then re-root/s-off (if you want). I had to do this once, and it's pretty straight forward. Just do a search for Bezerker7's Ultimate Get Back to Stock Thread. It has all the info you'll need on how to do it.
Click to expand...
Click to collapse
The problem is I can only get into HBOOT, not recovery. It would be a fairly simple matter if I had access to recovery features. Would RUU work without access to recovery?

jenic said:
The problem is I can only get into HBOOT, not recovery. It would be a fairly simple matter if I had access to recovery features. Would RUU work without access to recovery?
Click to expand...
Click to collapse
Looks like you'd need recovery to flash back to s-on first. First you could try flashing a recovery image using fastboot, go here for that information. You'd also need to find a 2.5.x.x recovery image, go here for the 2.5.1.2 image. Don't worry about renaming it, you won't have to do that here like the page says to.
Then, you could go here for instructions on using the RUU to flash back to stock.

RMarkwald said:
Looks like you'd need recovery to flash back to s-on first. First you could try flashing a recovery image using fastboot, go here for that information. You'd also need to find a 2.5.x.x recovery image, go here for the 2.5.1.2 image. Don't worry about renaming it, you won't have to do that here like the page says to.
Then, you could go here for instructions on using the RUU to flash back to stock.
Click to expand...
Click to collapse
Your concise post is most appreciated. I will do as you instruct and post results back here when finished.

RMarkwald said:
Looks like you'd need recovery to flash back to s-on first. First you could try flashing a recovery image using fastboot, go here for that information. You'd also need to find a 2.5.x.x recovery image, go here for the 2.5.1.2 image. Don't worry about renaming it, you won't have to do that here like the page says to.
Then, you could go here for instructions on using the RUU to flash back to stock.
Click to expand...
Click to collapse
Hit an unfortunate snag right away. fastboot (nor adb) is detecting the device. Screen is showing XC SHIP S-OFF as it should, it is in FASTBOOT USB mode and my computer detects the USB itself just fine.
dmesg output:
[346853.772041] usb 2-6: new high speed USB device using ehci_hcd and address 17
[346853.922917] usb 2-6: configuration #1 chosen from 1 choice
Click to expand...
Click to collapse
Thank you though that was a great suggestion! (Was very hopeful for a second there

I've never used the fastboot command before, but I seem to recall that sometimes my PC's don't report connection from ADB, but I haven't checked recently... Hmmm...
Just checked and it does report a device using ADB. Did you try typing the fastboot command to flash the recovery image file: fastboot flash recovery /path/to/<recovery.img file> anyways to see what happens? I am assuming if it isn't detecting the connection, it may fail...
EDIT: Did you pull the battery out, put it back in and try to get into recovery again? If you, try doing a user/factory reset + dalvik cache before trying to install a ROM from your SD card.

This may or may not help, but I had a similar issue of not having the phone recognized by fastboot while playing with a friends EVO Shift. I was able to use the program described in this thread to uninstall all HTC drivers. Then, when the phone was recognized and new drivers installed automatically, fastboot worked as expected.
http://forum.xda-developers.com/showthread.php?t=532719

RMarkwald said:
I've never used the fastboot command before, but I seem to recall that sometimes my PC's don't report connection from ADB, but I haven't checked recently... Hmmm...
Just checked and it does report a device using ADB. Did you try typing the fastboot command to flash the recovery image file: fastboot flash recovery /path/to/<recovery.img file> anyways to see what happens? I am assuming if it isn't detecting the connection, it may fail...
Click to expand...
Click to collapse
My ADB daemon would always recognize it in the past, when the phone was working. Yes I tried the command anyway, even though fastboot devices did not return anything. It hung there waiting for the device to be connected.
RMarkwald said:
EDIT: Did you pull the battery out, put it back in and try to get into recovery again? If you, try doing a user/factory reset + dalvik cache before trying to install a ROM from your SD card.
Click to expand...
Click to collapse
Yes, I pulled battery out multiple times, and when installing the rom I factory reset, cleared dalvik and normal cache through Clockwork. Cyanogen was working fine for weeks, this is a freak concurrence that happened without warning. I woke up to find it this way, or rather, it woke me up with its constant rebooting. lol.
cf9182 said:
This may or may not help, but I had a similar issue of not having the phone recognized by fastboot while playing with a friends EVO Shift. I was able to use the program described in this thread to uninstall all HTC drivers. Then, when the phone was recognized and new drivers installed automatically, fastboot worked as expected.
http://forum.xda-developers.com/showthread.php?t=532719
Click to expand...
Click to collapse
I appreciate the help however I am using Linux, and that seems to be a windows issue. I have not had issue detecting the device until this problem arouse. The sentiment is of course appreciated though, please do not feel that I am ungrateful! You have both been very supportive. I think I have just about resigned to dump money on a new phone. This time I will leave it stock for awhile and see if this occurs a third time.

jenic said:
My ADB daemon would always recognize it in the past, when the phone was working. Yes I tried the command anyway, even though fastboot devices did not return anything. It hung there waiting for the device to be connected.
Yes, I pulled battery out multiple times, and when installing the rom I factory reset, cleared dalvik and normal cache through Clockwork. Cyanogen was working fine for weeks, this is a freak concurrence that happened without warning. I woke up to find it this way, or rather, it woke me up with its constant rebooting. lol.
I appreciate the help however I am using Linux, and that seems to be a windows issue. I have not had issue detecting the device until this problem arouse. The sentiment is of course appreciated though, please do not feel that I am ungrateful! You have both been very supportive. I think I have just about resigned to dump money on a new phone. This time I will leave it stock for awhile and see if this occurs a third time.
Click to expand...
Click to collapse
This happened to me and many other people. It has nothing to do with the fact that you rooted as my replacement from verizon did the same thing even before I rooted. Finally on my 2nd replacement (my 3rd DINC), it has stopped happening.
You're going to have to take it to the store. The guy who looked at my phone looked right at the HBOOT (where it says s-OFF) and then said "we're going to have to send you another one."
So you may get lucky. Your other option (if you're nervous about the store seeing the s-OFF) is just to call Verizon and ask them to send you a replacement. My experience has been that the folks in the Verizon store have no idea what the f they're doing, and you'll probably be just fine taking it in.

jaba14 said:
This happened to me and many other people. It has nothing to do with the fact that you rooted as my replacement from verizon did the same thing even before I rooted. Finally on my 2nd replacement (my 3rd DINC), it has stopped happening.
You're going to have to take it to the store. The guy who looked at my phone looked right at the HBOOT (where it says s-OFF) and then said "we're going to have to send you another one."
So you may get lucky. Your other option (if you're nervous about the store seeing the s-OFF) is just to call Verizon and ask them to send you a replacement. My experience has been that the folks in the Verizon store have no idea what the f they're doing, and you'll probably be just fine taking it in.
Click to expand...
Click to collapse
That was definitely a laugh. Thank you I will see if I can get it replaced! I've been kinda just ignoring the fact that I do not have a phone all this time... Thankfully I had setup the phone to forward calls to google voice. It has been a lifesaver.

Help phone stuck at boot screen

Hello. I just tried to unlock the bootloader on on Verizon Galaxy nexus. Now it's stuck at the bootscreen with the lock image. I did a search and couldn't find a exact answer for my issue. I hope I haven't bricked my phone. Anyway, any help would be appreciated.
I wasn't trying to root just unlock the bootloader. It appeared everything went ok but, now I'm stuck. I used the same method for unlocking the bootloader on my GSM G-nex and it worked.
I know I've done something wrong or this may be something simple. I just need help so I can use my phone.

are you able to boot into the bootloader? if so you should be able to recover and can't worry a little less.

same thing here... I posted a request for a LTE boot.img since can still get into the bootloader

Goat_For_Sale said:
are you able to boot into the bootloader? if so you should be able to recover and can't worry a little less.
Click to expand...
Click to collapse
No I don't believe I can. When I type fastboot it just says "waiting on device" I can hold the volume down & power buttons and get to the screen were it says "start" at the top and below that "downloding"

Yea, that was what I was eluding too, The device just came out and google released the GSM image. I am sure that it will appear online in the near future.
if you are able to get into the bootloader does it say that its unlocked ? is your google splash screen showing the unlocked padlock ? you could also try fastboot flash recovery to get cwm on there and provide additional potential solutions.
---------- Post added at 11:40 AM ---------- Previous post was at 11:39 AM ----------
qnet said:
No I don't believe I can. When I type fastboot it just says "waiting on device" I can hold the volume down & power buttons and get to the screen were it says "start" at the top and below that "downloding"
Click to expand...
Click to collapse
That is download mode used for odin.
hold BOTH volumn buttons and power to get into the bootloader/fastboot

Goat_For_Sale said:
Yea, that was what I was eluding too, The device just came out and google released the GSM image. I am sure that it will appear online in the near future.
if you are able to get into the bootloader does it say that its unlocked ? is your google splash screen showing the unlocked padlock ? you could also try fastboot flash recovery to get cwm on there and provide additional potential solutions.
---------- Post added at 11:40 AM ---------- Previous post was at 11:39 AM ----------
That is download mode used for odin.
hold BOTH volumn buttons and power to get into the bootloader/fastboot
Click to expand...
Click to collapse
Yeah, when I did the procedure it said that it was unlocked. Everything looked ok , it booted show the unlock symbol under Google. It then went to the colorful animation and was stuck there. At that time I pulled the battery and, it's been stuck at the screen showing google and the unlock image.

qnet said:
Yeah, when I did the procedure it said that it was unlocked. Everything looked ok , it booted show the unlock symbol under Google. It then went to the colorful animation and was stuck there. At that time I pulled the battery and, it's been stuck at the screen showing google and the unlock image.
Click to expand...
Click to collapse
you should have let the animation run for like 10 minutes the phone has to rebuild the first boot can take like 15 minutes sometimes.
try booting into the bootloader see if that works still

Sorry I wasn't paying attention and didn't read the part were you told me how to get to the fastboot screen. I'm there now. Can I just relock or fix the bootloader from problem there? It shows it unlocked at the fastboot screen.

qnet said:
Sorry I wasn't paying attention and didn't read the part were you told me how to get to the fastboot screen. I'm there now. Can I just relock or fix the bootloader from problem there? It shows it unlocked at the fastboot screen.
Click to expand...
Click to collapse
you could try fastboot oem lock and see if that works but if the phone wasn't booting i don't know if that will fix it but worth a shot.
try it out and see. it shouldn't do any harm to try

I had the issue with the failure to boot up after doing the fastboot oem unlock (I had to use the pda net drivers to get my device recognized to get even that far). I did a lot of things like pulling the battery, locking again and then unlocking and nothing worked until I went here http://rootzwiki.com/topic/11732-galaxy-nexus-root-procedure-adb-method/, then downloaded the files following their directions and doing the fastboot boot boot.img command. It took a LONG time to boot up, but it did boot finally.

GirLuvsDroid said:
I had the issue with the failure to boot up after doing the fastboot oem unlock (I had to use the pda net drivers to get my device recognized to get even that far). I did a lot of things like pulling the battery, locking again and then unlocking and nothing worked until I went here http://rootzwiki.com/topic/11732-galaxy-nexus-root-procedure-adb-method/, then downloaded the files following their directions and doing the fastboot boot boot.img command. It took a LONG time to boot up, but it did boot finally.
Click to expand...
Click to collapse
Thank you, I'll try that.

I have another question. One of the selections on the fastboot screen is recovery mode. Can I try that or is this something were you have to have a rom stored on a sd-card?

qnet said:
I have another question. One of the selections on the fastboot screen is recovery mode. Can I try that or is this something were you have to have a rom stored on a sd-card?
Click to expand...
Click to collapse
you could download the recovery image from
http://forum.xda-developers.com/showthread.php?t=1392336
then when connected in fast boot flash it with
fastboot flash recovery recovery.img
(rename the file from the linked thread to recovery.img)
this should write your custom recovery partition.
once you have that though you are still not going to be able to boot but it would allow you to flash a nandroid backup if someone made one for you or a LTE based rom
EDIT: you could also try a factory data reset and wipe dalvk cache from withing cwm. that may fix your boot problem

I had this problem, too.
I downloaded Clockwork Recovery and used 'fastboot boot LTErecovery_cwr.img' to boot into it, I wiped data and cache / factory reset and then rebooted. It rebooted twice, but after ten minutes or so I was back to the ICS Welcome screen. All of the files I'd put on my internal storage were wiped (during the oem unlock, I assume) but I'm in the stock rom but Superuser was installed and I have root access.
Hope it helps.
EDIT: looks like this is the same thing Goat_For_Sale posted above, but his command flashes CWM where mine temporarily boots into it. Since most of us will be installing CWM anyway I'd recommend using his command instead.

mixedlemon said:
I had this problem, too.
I downloaded Clockwork Recovery and used 'fastboot boot LTErecovery_cwr.img' to boot into it, I wiped data and cache / factory reset and then rebooted. It rebooted twice, but after ten minutes or so I was back to the ICS Welcome screen.
Hope it helps.
Click to expand...
Click to collapse
where did you get the lterecovery_cwr.img ? could you link to it please

I linked to the thread in my post, but here's a link to the mediafire upload from that thread: http://www.mediafire.com/?mdf0mtacskob5yg

mixedlemon said:
I linked to the thread in my post, but here's a link to the mediafire upload from that thread: http://www.mediafire.com/?mdf0mtacskob5yg
Click to expand...
Click to collapse
Thanks, my bad I didn't realize you were refering to the recovery image, thought it was the boot image for the LTE device.

Goat_For_Sale said:
Thanks, my bad I didn't realize you were refering to the recovery image, thought it was the boot image for the LTE device.
Click to expand...
Click to collapse
Ahh no problem.
I got pretty worried for a second that I'd already broke my shiny new Nexus, so I'm really hoping I can help out someone else that had the same problem.

Solved
I believe it's fixed now. I use the method that GirLuvsDroid posted from the Rootzwiki forum. Once it rebooted, I stopped there and didn't root the phone. I was just happy to get it booted.
It's downloading all my apps and settings now. Thanks to everyone who tried to help me, I really appreciate. This was a good learning experience for me.

qnet said:
I believe it's fixed now. I use the method that GirLuvsDroid posted from the Rootzwiki forum. Once it rebooted, I stopped there and didn't root the phone. I was just happy to get it booted.
It's downloading all my apps and settings now. Thanks to everyone who tried to help me, I really appreciate. This was a good learning experience for me.
Click to expand...
Click to collapse
So you were just able to go through the Rootzwiki method? Were you stuck at "Downloading...Do not turn off target !!" screen when you went to boot screen originally? My device still can't be detected :/

Help me fix my BRICKED Galaxy Nexus. (REWARD if you want...))

Well, I bricked my Galaxy Nexus after rooting it and installing a custom Kernel. I did not make a back up so I can not just restore it to how it was before. I really need my phone for tomorrow seeing that I am going on a trip and right now, all I can do is power it on and let it freeze on the screen that says google in white letters or get into the bootloader. I cant do anything more. I have checked a few videos out but I cant seem to do anything right. If it helps, I have a windows computer and a mac. I would prefer doing it on the mac because on windows, it wont read my device when I plug it in because I dont have the right drivers but any one will do if you can find them for me. I have tried pretty much anything. I have went into the bootloader and I clicked on all the things like delete system **** and all. What Can I do. Help me out. I really need this.
I will do anything. thanks a bunch in advance.

pull battery, then insert it back in, then pretty vol up and down and power at the same time. youre in bootloader, then click up to go into recovery, then click data wipe/factory reset, reboot
---------- Post added at 12:38 AM ---------- Previous post was at 12:38 AM ----------
if that doesnt work there are threads on how to get your gnex back to factory using command prompt and bootloader mode

I tried that and it is still stuck on the google on boot up. Thanks anyways, i guess...

Boot into the bootloader, use fastboot, and flash a stock Google image. There are some guides around here for that.
Sent from my Galaxy Nexus using XDA App

and this is why im scared ****less to root a phone

subxero123 said:
and this is why im scared ****less to root a phone
Click to expand...
Click to collapse
Then you absolutely shouldn't!

You rooted your phone so I will assume you can use fastboot on your mac..
If so, go here:
http://code.google.com/android/nexus/images.html
If you are using the phone for Verizon, download the "toro" images. If you are not using the phone on Verizon, download the "maguro" images.
When you have downloaded these files, unzip them and place them in THE SAME FOLDER as your fastboot file.
From here, you use fastboot flash commands to flash each piece of the stock image. I'm not positive on all of the components of the stock images, but the kernel is flashed with
" fastboot flash boot boot.img "
Without the quotation marks. You would follow a similar sequence for all components of the stock images such as
" fastboot flash recovery recovery.img "
Do all of this and see what happens.

subxero123 said:
and this is why im scared ****less to root a phone
Click to expand...
Click to collapse
its really not that scary if you do some research first, and read everything you can. don't just read one article. read em all. xda & google search are your friends. 90% of the 'bricked' phones here are people not fully reading the articles provided or following the directions exactly.
oh, an always backup, and never try to flash or root your phone if you know you HAVE to use it the next day. its like plumbing; never start after 3pm, because its a guarantee everything will break after all the stores are closed.

A "bricked" phone is a phone that literally will not respond to any kind of input. A brick, if you will. If your phone responds in any way, shape, or form, it is not bricked. Bricked literally means it is dead like a brick. If it turns on in any fashion, that **** ain't bricked. Sorry to be so redundant, but damn that term is over used.
Fastboot flash a new image and you will be fine most likely.

Step 1. http://forum.xda-developers.com/showthread.php?t=1366806
Instructions are for GSM version, for Verizon version, go to http://code.google.com/android/nexus/images.html and download the Verizon Image, extract it and use the file names from the image.
Step 2. Give me the reward.

If you can get into the bootloader, you are not bricked. This device is really hard to brick. So chillax and let us know how you get on.

GN not starting

hi,
i need help my GN is not starting after I flashed a theme all i can just get into clock mode recovery even i didn't have any back up or any restore point it just shows google logo when i start. Please helppppppppppppppppppp pleaseeeeeee
thankzzz
now i am stuck on below attachment please help thnkzz so much for all reply till now

since you didn't do a Android your basically screwed so all you data is gone you only hope is to transfer a file through fastboot(can you even do that?) Or boot to Odin mode and flash a stock image
Sent from my Galaxy Nexus using XDA App

GSM or LTE Gnex? What ROM were you running?

Golden rule: Do a backup before doing anything to your phone!
Now all you can do is to download EXACTLY same ROM as you were using by now, wipe cache/dalvik-cache, flash this ROM once again and hope that i'll boot. If it won't you'll have to wipe /data is well.

Sleuth255 said:
GSM or LTE Gnex? What ROM were you running?
Click to expand...
Click to collapse
HI
its gsm i tried to flashed the same rom but still the same only i can access is to recovery

cordell507 said:
since you didn't do a Android your basically screwed so all you data is gone you only hope is to transfer a file through fastboot(can you even do that?) Or boot to Odin mode and flash a stock image
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
tnkz bro but i am new to android please help how to do it with Odin

well since you can boot into recovery try searching in your sdcard folders if youve left a ROM .zip there laying around and if this is the case just flash it and youre back on track

nonione said:
well since you can boot into recovery try searching in your sdcard folders if youve left a ROM .zip there laying around and if this is the case just flash it and youre back on track
Click to expand...
Click to collapse
unfortunatly i delete system file and data file also in recovery i tried to flash the zip update but no result helpppppppppppppppp

salym said:
unfortunatly i delete system file and data file also in recovery i tried to flash the zip update but no result helpppppppppppppppp
Click to expand...
Click to collapse
This will help you get back to stock
http://forum.xda-developers.com/showthread.php?t=1392310
Sent from my GNex {GSM} T-Mobile

Change your spark plugs.
Sent from my Nexus in Texas.

spaceman860 said:
This will help you get back to stock
http://forum.xda-developers.com/showthread.php?t=1392310
Sent from my GNex {GSM} T-Mobile
Click to expand...
Click to collapse
Hi bro i tired with Odin but stops on userdata any help thnkzzzz

salym said:
hi,
i need help my GN is not starting after I flashed a theme all i can just get into clock mode recovery even i didn't have any back up or any restore point it just shows google logo when i start. Please helppppppppppppppppppp pleaseeeeeee
thankzzz
Click to expand...
Click to collapse
i am stuck on this now please help

ouch... softbrick.
put your phone down.
take a deep breath or two.
If you are old enough, grab a beer and relax for a bit. Think calming thoughts.
Now, start learning about how to mod your GNex. We can help.
Here's your First assignment:
find out if you still have a bootloader by booting into fastboot mode. Report back with your findings and a screenshot!

Sleuth255 said:
ouch... softbrick.
put your phone down.
take a deep breath or two.
If you are old enough, grab a beer and relax for a bit. Think calming thoughts.
Now, start learning about how to mod your GNex. We can help.
Here's your First assignment:
find out if you still have a bootloader by booting into fastboot mode. Report back with your findings and a screenshot!
Click to expand...
Click to collapse
Still have a bootloader? Are you serious? You need to learn how to use an android device as well.
To the OP: Do a factory reset in Clockwork and go to mounts
and format /system. Flash the ROM zip. Profit.

Absolutely serious. Have you been reading this thread? The OP needs to start at ground zero and stop just trying every tool he/she sees. My purpose was to get this person to do some research and I was establishing a knowledge baseline. One plan I was considering was to help the OP install the GNex toolkit then locate stock images and obtain a working build. Your cryptic one liner bit should prove vastly more useful to this guy though. I'll let you have at it and go back to my dev work. lol at least this post was a good way to make sure gapps/root capabilities are properly cooked into my latest test build ....
Sent from my Full AOSP on Toro using xda premium

Sleuth255 said:
ouch... softbrick.
put your phone down.
take a deep breath or two.
If you are old enough, grab a beer and relax for a bit. Think calming thoughts.
Now, start learning about how to mod your GNex. We can help.
Here's your First assignment:
find out if you still have a bootloader by booting into fastboot mode. Report back with your findings and a screenshot!
Click to expand...
Click to collapse
U r right i am not good in android but i tried to be and this happens, meanwhile nothing shows after i start the device it shows the !!!! mark with device the PC logo,this happens due to ODin actually the SUMSUNG ADB interface shows ! mark because i cant debug from device even no bootloader works any more thnkz for replying

*facepalm*
OP, you are holding it wrong.
I can think of at least 2 ways to recover from a situation like this. Both are well described in these forums (search works 99% of the time).
....
Oh come on, you don't have the zip of the last rom you flashed, get another one, hey, its free right? **** we dont know nothing about but we'll flash it anyways!
Man...If you have cwm recovery, you're safe. No need to go messing with fastboot (forget odin) just yet. Now stop wasting everybody's time and learn to help yourself.
Here's a few tags to get you started:
cwm, recovery, adb, bootloader, fastboot

bk201doesntexist said:
*facepalm*
OP, you are holding it wrong.
I can think of at least 2 ways to recover from a situation like this. Both are well described in these forums (search works 99% of the time).
....
Oh come on, you don't have the zip of the last rom you flashed, get another one, hey, its free right? **** we dont know nothing about but we'll flash it anyways!
Man...If you have cwm recovery, you're safe. No need to go messing with fastboot (forget odin) just yet. Now stop wasting everybody's time and learn to help yourself.
Here's a few tags to get you started:
cwm, recovery, adb, bootloader, fastboot
Click to expand...
Click to collapse
i tried more than one day on this issue its only starts with !!! mark on it nothing else, i have attached the pic i cant access any bootloader or any cwm or any thing all i did with Odin and stuck to attached pic even i start the device its shows the same pic.
http://www.youtube.com/watch?v=WdM2M8Nz6QQ this I used on Odin
thnkzz

As I suspected earlier, it appears that the OP may have trashed his bootloader partition when he tried using Odin to flash the 4.0.2 factory image (which includes a bootloader). At one point he had CWM but not any more since he can't boot to the recovery partition.
Another possibility is that the Odin tool itself places the device in this mode and it can't be manually reverted by starting up in fastboot mode. Looking at the picture, it literally appears that the phone is saying that a flashing operation is half finished but the phone has lost the PC connection... This would be a lot like what I've experienced with iPhones.
In either case, I can deduce that Odin is the tool to use to clear this softbrick.
Hopefully, it'll be flame-off now Sdobron. Perhaps you might want to help out here since I'm not up to speed on the Odin tool myself and would like to learn more about it.
@salym: I know this may be redundant but I need to establish your problem baseline empirically. Once again, can you verify that when you hold vol down/vol up then press power that you get the image you posted?

Use Fastboot!
Dude, it looks like your problem is with crappy boot sector.
While turning on your phone, hold both volume up and volume down buttons, and long press power button untill you feel single vibrate feedback.
Then connect your phone to the computer via USB, and if it doesn't detect drivers, google "samsung android usb driver". Additionally you can install PDANet application (X64 or x86 depending on you system).
THen download Fastboot - there are plenty of instructions how to flash it, and flash stock images (that come with radio, boot sector, rom itself, etc) - there are also plenty of discussions about how to do it. PM if you have any other questions!

[Q] Need help fixing my Gnex

Hi,
it is the second time my Gnex went into endless reboot loop sessions.
It will boot, load crash after few seconds and reboot again.
I had it unlocked in the store i bought it, and had stock rom (Not sure about the version).
Tried to do factory reset from fastboot, from recovery, and from android. Also tried to flash custom boot loader, Nothing works.
Although fastboot writes it successfuly completed the action so does the factory reset. The phone will work for few seconds but no more.
Also tried using WugFresh, for factory reset and for Flash Stock + unroot in soft-break status
I have no ideas what to do next,
Please help.
Mike

Hi Mike, I think more information is required.
- What action did you take immediately prior to having your phone get stuck in the bootloop? Were you trying to install a Custom Recovery or ROM?
- You mention that this is the second time this has happened. Do you know what caused it to bootloop the first time, and if yes what fixed it?
- When your Gnex is in Fastboot/Bootloader mode, and using a tool like Minimal ADB and Fastboot on your computer, does the tool recognize the Device ID after using the fastboot devices command?
You may also want to read through this thread.

AvidPhisherman said:
Hi Mike, I think more information is required.
- What action did you take immediately prior to having your phone get stuck in the bootloop? Were you trying to install a Custom Recovery or ROM?
- You mention that this is the second time this has happened. Do you know what caused it to bootloop the first time, and if yes what fixed it?
- When your Gnex is in Fastboot/Bootloader mode, and using a tool like Minimal ADB and Fastboot on your computer, does the tool recognize the Device ID after using the fastboot devices command?
You may also want to read through this thread.
Click to expand...
Click to collapse
Hi thanks for the reply, i am a simple user, prior to the bootloop i was using whatsapp, actually the android crashes few seconds after getting a whatsaap message (i recieve notification and it goes down). Previous time also i didn't do anything special. i never installed custom recovery or roms... previous time it was fixed by a lab the phone was on warranty.
And yes the tool recognize the device.

So your device receives a WhatsApp message/notification, restarts, and then gets stuck in a bootloop?
That is very strange, as personally I've only ever encountered bootloops after bad ROM flashes (usually after I accidentally skipped a step somewhere during the process). Bootloops usually don't happen to regular users who are just using their phone purchased as-is from a store/carrier.
If you can get it to boot back into Android, try uninstalling WhatsApp and see if that helps. Hopefully it's still under warranty, as you may have to take it back to the store and have them look at it.

AvidPhisherman said:
So your device receives a WhatsApp message/notification, restarts, and then gets stuck in a bootloop?
That is very strange, as personally I've only ever encountered bootloops after bad ROM flashes (usually after I accidentally skipped a step somewhere during the process). Bootloops usually don't happen to regular users who are just using their phone purchased as-is from a store/carrier.
If you can get it to boot back into Android, try uninstalling WhatsApp and see if that helps. Hopefully it's still under warranty, as you may have to take it back to the store and have them look at it.
Click to expand...
Click to collapse
Tried to uninstall whatsapp but it crashes before i manage to do so.
even managed to access memory via TWRP and delete whatsaap manually but somehow it appears again after restart.
Something is terribly wrong

Have you tried using Odin to repartition and restore to stock? Could be a corrupted partition. Check out this guide

nthnlee said:
Have you tried using Odin to repartition and restore to stock? Could be a corrupted partition. Check out this guide
Click to expand...
Click to collapse
Why???
Just use fastboot, Odin is evil. Nexus aren't Touchwiz crap phones.

beekay201 said:
Why???
Just use fastboot, Odin is evil. Nexus aren't Touchwiz crap phones.
Click to expand...
Click to collapse
When fastboot didn't work. i had to try something else. But, odin didn't work either.

mishkap said:
When fastboot didn't work. i had to try something else. But, odin didn't work either.
Click to expand...
Click to collapse
Let's see then. Be prepared to spend at least 30min reading, and re-reading, until you actually feel comfortable in what you're doing/typing in. If you're not sure about the technical terms and what lies behind them, read this thread's #1 First Post.
What's your device variant? maguro? toro? toroplus? This will tell which factory image you need to flash.
You need to flash latest factory image, which is (for maguro variant) Android Build 4.3 (JWR66Y). Read #1 First Post on this thread. And I mean, READ IT! Do not do anything else to your device until you do.
After you flash the factory image, that first boot will take a while to reach Android. Chill out. Go get yourself a drink. Take your time. It should have booted into Android already when you get back. It should be fine, but if not, you need to enable USB debugging under Settings > Developer Options, to check the system log.
If after 15min, it still has booted yet, pull the battery out, wait a few secs, put it back in.
Use the 3bc (3-button combo) to reach fastboot mode again. Flash a custom recovery. That's done by downloading the latest TWRP or CWM (i'll leave that choice up to you, be mindful that you might wanna try them both in the future), and running on the host (the PC):
Code:
fastboot flash recovery recovery_filename_here.img
Don't reboot the device. Use the volume keys to "Reboot to recovery" straight from fastboot. After a few seconds, you should be seeing the custom recovery you've flashed with the fastboot command above.
Now comes the part where ADB is required. I hope you've already read the answers to questions "Where do I get the driver for my PC?" and "Why do I need to install the driver twice?". If not, read them now. Also, read "What is ADB?". TIP: When a custom recovery is actually running on the device, ADB mode is already active by default, so when hooking up to the pc the device will show as an ADB interface, so installing the driver (if needed/not done yet) is piece of cake.
After you get ADB to recognize your device (like, you see your device's SN on the output of command `adb devices`).. You need to copy a custom ROM to your device, and flash it. That will get you, most likely than not, Android's USB debugging by default (read answer to "What is an insecure boot image?" on the first link), and that will allow you to see the system log, WHILE Android is booting up. Why do we wanna do this? Cos we want to see if any errors show up, something that may tell us what's failing.
When choosing a ROM from the Android Development section, ask around in the thread if the ROM has USB debugging enabled by default.
Read "What are the ADB commands?" in the thread I first linked to. You'll need to learn at least `adb push` for now.
Once you get the ROM in your /sdcard/ or whatever folder you like, disconnect the USB cable, wipe data/factory reset, then install zip from sdcard (that zip you pushed before).. Forget about gapps for now.
Connect the usb cable, reboot, and once you see padlock screen go away, start trying to run `adb devices`. Do you see your SN in the output? Once you see it, good, it already connected to adb on the device. Run `adb logcat` and try to look out for errors. Logcat is the system log.
To know how to grab that output to a text file so that you can share it with us.. Google it, my fingers hurt.

Thanks beekay201,
As a matter a fact. shortly before you posted this answer i gave up and gave my phone to a local lab.
But unfortunately they were useless and didn't manage to do anything claiming they don't have spares for my phone, tried to explain that it is not a hardware issue, but all in vain .
Anyway, ill go over your instructions and ill update the results soon.