[Q] Need help - I cannot turn on nexus - Nexus 7 Q&A, Help & Troubleshooting

I used this instruction and used this file "4.2.1-StockUI.zip" from here
I have hardly pressed "reboot" when nexus turned off. When I'm trying to turn on it now, It appears google logo and many-colored "X", then loading stops and it likes to hang...
What can I do? Help...

Did you make a backup in recovery before you flashed that.. If so boot back into recovery and restore backup .. if not Look in top STICKY post in Q&A forum area... there is adb/fastboot instructions.. You can also use wugs root tool kit to flash back to stock... in is in android development forum..
post more info and you can get more help
erica renee

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[Q] HELP NEEDED: I think I am bricked, not sure

I was attempting to run this lag fix on my Vibrant and now my phone does not boot past the large S, it just sits there with the center of the S glowing every few seconds, then the screen goes black. I can then click the Home key and the keys all light up but screen stays black and the lighted keys never turn off.
I can also hold volume keys and power at this point and boot to Android system recovery screen but can't do much there because either a reinstall packages or reboot causes same issue at the big S. Is there any way to replace the update.zip (for lag fix) sitting on the internal memory so I can reload stock?
Note: I got to the part of that lag fix where it tells you to choose the top option in the MCL Scripting program (6:45 in thee video), while it was in there running the phone rebooted at some point and was extremely slow booting up. I was able to get to a "power-off" prompt there and since then have been stuck at the big S ever since.
Thanks for any help.
I was able to get back to the phone running again by doing a wipe (unfortunately) but now after booted I get an error like so:
Sorry!
------------
The application Web (process com.android.browser) has stopped unexpectedly. Please try again.
dumpstate_app_201008192123_com_android_browser.log has been saved. Use *#9900# to copy out log.
How can I flash my Vibrant back to stock now? I think this is kinda hosed the way it is now. Thanks!
Odin and stock kernel is your option.
Did you make a nandroid backup before you ventured into the lag fix?
EDIT: it should not be in this section
Took me a bit of time but I figured out how to use Odin and boot the phone in download mode and flash it with the stock kernel. Thanks for your help!
mgiusto said:
Took me a bit of time but I figured out how to use Odin and boot the phone in download mode and flash it with the stock kernel. Thanks for your help!
Click to expand...
Click to collapse
can you please help a noob out and give me detailed steps on how you did this =]
if you want to learn to use odin read some of the faq threads there one in each of the galaxy s variants development forums just follow the instructions and it should work

desire hd can not start

hi dudes can you help?
My desire hd stucks on htc logo when i start it... and also when i go to recovery mode to install a new ROM (when pressed power button and volume down key) it shows me a mobile picture with red triangle with "!" and can't go further... What should i do, so i install i new Android ROM... Thankyou for your replies
How exactly did this happen in the first place?
Secondly I think you should try to flash a new recovery from fastboot. I have forgot how to do it but that is the way forward. Somebody should reply with details on that
king_slavcho said:
when i go to recovery mode to install a new ROM (when pressed power button and volume down key) it shows me a mobile picture with red triangle with "!"
Click to expand...
Click to collapse
That is the stock recovery. Either you don't have a custom recovery installed or you haven't rooted & removed S-OFF.
Use [TOOL] Advanced Ace Hack Kit (UPDATED 25-10-2011) to root & flash a custom recovery.
how do i install it... as i came up to conclusion - i should copy the zip file into my mobile and then install it from recovery... but as i said when i start the recovery mode, it stucks on a mobile pic with red exclamation in triangle and here, i am stuck, so as further as i know i should flash it from PC... Can you explain me completly what should i do with this hack kit... Thanks for your replies
Or, how about you go to the Development Section, read through the guides, including the one I provided a link to and learn how to do it. Its not rocket science. If after reading through it you still think its too hard, sadly Custom ROMs aren't for you.
king_slavcho said:
how do i install it... as i came up to conclusion - i should copy the zip file into my mobile and then install it from recovery... but as i said when i start the recovery mode, it stucks on a mobile pic with red exclamation in triangle and here, i am stuck, so as further as i know i should flash it from PC... Can you explain me completly what should i do with this hack kit... Thanks for your replies
Click to expand...
Click to collapse
Download the hack it, and extract it if you need to. There will be a file called the 'Effen Manual' which you need to read before you do anything. It gives you instructions for Windows, OSX and Linux, so pick the relevant one.
It's really quite simply, just follow the guide, which involves running a script from the cmd or terminal, and wait for it to do its thing. Takes about 6-10 minutes on average.
Hope it goes well
hmm i read the effen manual done everything it says but one thing i cant do... Can't turn on the debugging mode because android does not start... Is there any other way to turn the debugging mode on?

[Q] Help can't get into recovery and APX mode

First of all appologies if I started another thread on this topic. I am very green with Android and am now unable to get past my latest screwup! I had CMod 10 on my device but it kept freezing in the browser. I also had Skrillax recovery on it. I wanted to revert back to OTA stock Rom so got the following ROM from this Forum Post:
http://forum.xda-developers.com/showthread.php?t=1816560
Acer_A500_0.000.00_041.121.01_COM_GEN1: ftp://94.23.233.147/Tablets/A500/Ace...5_78277167.zip
I decrypted it, extracted the update.zip and applied it to my tablet as instructed in the post. Upon completion it restarts and goes into this loop at the Silver android screen! I tried to go into Recovery and get the dead Android with the red Exclamation mark. I can reapply the same update.zip file and it seems to go through things again but every time I get the same end result looping silver android loop. HELP! please! If I try to use another stock update file it only get me to the dead android guy with red exclamation mark. I have tried to put this into APX mode but it does not want to go there at all.
Is there anybody out there that can take a little pity on a fool like me to get this thing back up again?
I don't care about the data at this point and which version I get back to. I also do not have my CPUID and can't seem to get to it. Thanks in advance to anyone who could point me in the right direction or better yet walk me through this.
Dead android guy is what I get after root the tab and try to get to stock recovery WITHOUT unlocking the bootloader
DId you try the manual way to go APX, push the reset button with a paper clip and hold power button? If you can get to APX you can use A500 manager tool from this
http://forum.xda-developers.com/showpost.php?p=25891744&postcount=44
you can try unlocking the bootloader which then result in bootable recovery
or check out this guy
http://forum.xda-developers.com/showthread.php?t=1874345
similar problem trying to get stock ROM back
pinmemo said:
Dead android guy is what I get after root the tab and try to get to stock recovery WITHOUT unlocking the bootloader
DId you try the manual way to go APX, push the reset button with a paper clip and hold power button? If you can get to APX you can use A500 manager tool from this
http://forum.xda-developers.com/showpost.php?p=25891744&postcount=44
you can try unlocking the bootloader which then result in bootable recovery
or check out this guy
http://forum.xda-developers.com/showthread.php?t=1874345
similar problem trying to get stock ROM back
Click to expand...
Click to collapse
Ok so now can get in APX mode but it says debugging is not on, I can't get in to turn it on? Is there a way to get the bootloader back to the Skrillax version via update.zip file? I will keep reading these posts but still can't seem to get APX mode right.
mdlevesque said:
Ok so now can get in APX mode but it says debugging is not on, I can't get in to turn it on? Is there a way to get the bootloader back to the Skrillax version via update.zip file? I will keep reading these posts but still can't seem to get APX mode right.
Click to expand...
Click to collapse
First of all a million thanks to Happy who pointed me in the right direction! I appreciate the help buddy! I was finally able to get my device working by following the first post by manually installing Thors v1.7.3 bootloader. Once I got the bootloader back I just reinstalled one of the custom ROMS and voila! back in operation. Most appreciative...
The link again is the following and you do not have to have debug mode on to do the manual flash.
http://forum.xda-developers.com/showpost.php?p=25891744&postcount=44
Mike:victory:
mdlevesque said:
First of all a million thanks to Happy who pointed me in the right direction! I appreciate the help buddy! I was finally able to get my device working by following the first post by manually installing Thors v1.7.3 bootloader. Once I got the bootloader back I just reinstalled one of the custom ROMS and voila! back in operation. Most appreciative...
The link again is the following and you do not have to have debug mode on to do the manual flash.
http://forum.xda-developers.com/showpost.php?p=25891744&postcount=44
Mike:victory:
Click to expand...
Click to collapse
Congratulations! you successfully resurrected a dead droid!

[Q] [HELP] Uninstalled Safestrap, installed CWM, hard brick and Odin is fail

I was unsatisfied with Safestrap( Only a few roms would work for me and the wifi never worked), so I uninstalled it using the built in uninstaller in the app. I installed ROM manager and installed CWM from it. I rebooted my phone and CWM and system reboot to the " Unauthorized software installed" screen, only download mode works. I attempted to install the stock firmware from Odin but it would say fail (auth). Nothing I do on Odin is working. What do I do?
After installing either the AMDL or AMDB it either says "Can't open the serial(COM) port." or "fail(auth)", always on the first step.
By AMDB or AMDL I mean the md5 files
MF3
Are you on the MF3 baseband...
kevinaker said:
I was unsatisfied with Safestrap( Only a few roms would work for me and the wifi never worked), so I uninstalled it using the built in uninstaller in the app. I installed ROM manager and installed CWM from it. I rebooted my phone and CWM and system reboot to the " Unauthorized software installed" screen, only download mode works. I attempted to install the stock firmware from Odin but it would say fail (auth). Nothing I do on Odin is working. What do I do?
Click to expand...
Click to collapse
Have you read anything that is posted in the forum? Considering everything in your above post has been covered many times (and you didn't follow the information already posted), I would say you have not. So the answer to your question, "What do I do?", is to take the time and read about what you should have done and what is now available for you to try. Start by reading the "pinned" threads in the General and Q&A section and then read any thread with "MF3" or "safestrap" in the title. You can also use the search function of the forum to find more information. Good luck.
scott14719 said:
Have you read anything that is posted in the forum? Considering everything in your above post has been covered many times (and you didn't follow the information already posted), I would say you have not. So the answer to your question, "What do I do?", is to take the time and read about what you should have done and what is now available for you to try. Start by reading the "pinned" threads in the General and Q&A section and then read any thread with "MF3" or "safestrap" in the title. You can also use the search function of the forum to find more information. Good luck.
Click to expand...
Click to collapse
:good:
I'll tell you this if you didn't manually uninstall SS you still have it.
Pull the battery and before putting the battery in hold the power and volume down ,let go of the power button and hold volume down it will go back to the unauthorized ATT screen again.now push volume down it should go to boot up and you should see the SS splash screen. Hit our menu button at that splash screen and it should go to SS recovery. I have done this plentty of times
sent from a I337 MF3 S4
jball said:
I'll tell you this if you didn't manually uninstall SS you still have it.
Pull the battery and before putting the battery in hold the power and volume down ,let go of the power button and hold volume down it will go back to the unauthorized ATT screen again.now push volume down it should go to boot up and you should see the SS splash screen. Hit our menu button at that splash screen and it should go to SS recovery. I have done this plentty of times
sent from a I337 MF3 S4
Click to expand...
Click to collapse
Can you make those instructions just a little bit more clear?
Like for example when do i put the battery back in?
U put the battery back in wile holding the power and volume down.give it a couple of seconds and let go of the power but still hold the volume down till the unauthorized ATT screen comes up.press the down option and it will boot in my case the custom with unlock icon followed by the SS splash screen. You should know by now what to do when you see the SS splash screen
sent from a I337 MF3 S4
jball said:
U put the battery back in wile holding the power and volume down.give it a couple of seconds and let go of the power but still hold the volume down till the unauthorized ATT screen comes up.press the down option and it will boot in my case the custom with unlock icon followed by the SS splash screen. You should know by now what to do when you see the SS splash screen
sent from a I337 MF3 S4
Click to expand...
Click to collapse
Ehh no luck.
Is it supposed to boot into download mode? then i select down and it reboots by itself?
I try on purpose to f??? Up my phone in a what I call a mantrum .and have installed using SS recovery any of the recoveries found for our phone.
Philz recovery
Auto loki cwm
Twrp image
And after each of the images I hit reboot recovery wile in SS recovery
And it always goes to download mode.
Than I do what steps I've provided for you and I'm using my phone to communicate with you now . hence the name Safestrap .
sent from a I337 MF3 S4
---------- Post added at 04:36 AM ---------- Previous post was at 04:28 AM ----------
Odischeese said:
Ehh no luck.
Is it supposed to boot into download mode? then i select down and it reboots by itself?
Click to expand...
Click to collapse
Check your private messages
sent from a I337 MF3 S4
jball said:
I try on purpose to f??? Up my phone in a what I call a mantrum .and have installed using SS recovery any of the recoveries found for our phone.
Philz recovery
Auto loki cwm
Twrp image
And after each of the images I hit reboot recovery wile in SS recovery
And it always goes to download mode.
Than I do what steps I've provided for you and I'm using my phone to communicate with you now . hence the name Safestrap .
sent from a I337 MF3 S4
---------- Post added at 04:36 AM ---------- Previous post was at 04:28 AM ----------
Check your private messages
sent from a I337 MF3 S4
Click to expand...
Click to collapse
I'm trying to respond to you lol
Give me a couple minutes.
Did you get the message? if not i'll just put it here.
So the problem here is that my phone won't enter recovery mode. I think it's because it's deleted. I installed safestrap and did a factory wipe but it gave me errors(something about datamedia/media) so i just deiced it's best to deal with it in the morning, so i rebooted. The phone stayed on my boot logo(Samsung Custom) and then things started to get worse. I hold the 3 buttons to boot into recovery, only problem is that the blue "entering recovery mode" text shows up for a split second and then gives me the android figure you would see if you were in download mode for another split second and then reboots.
I know that MF3 is having some flash problems so i can't flash the stock rom because i already tried with 2 different stocks rom. I also already tried to use the custom pit files that were used to fix the bootlop issue with kies or whatever (adonis.pit, MF3_BTL_FIX and SGS_I337_16GB), which came out with no luck.
If you can help me out with that then i'd be more than happy to make a skype call.

Help me unbrick ZTE V987 rooted and stuck on ZTE logo boot

Hi all,
My zte v987 is rooted and got stuck on zte logo boot.
Before it got stuck i was playing around with an app called "freedom" that hacks in app purchases. I went into settings and turned on the "freecore" it rebooted itself after and got stuck on zte logo forever. I am able to go into recovery mode but i dont have custom recovery installed i also dont have a backup of my stock rom or any kind of backup. I am clueless about flashing so i will really need a step by step instruction. I also tried resseting my phone back to factory settings but nothing happened. I also read some threads about flashing recovery using adb and fastboot but since im a noob on android i turned off (I dont know if you need it)usb debugging mode before this all happened and i dont know what to do now. I need help.
Thanks in advance also sorry for posting this twice since im a newbie and i really need help
Mod edit: THREAD CLOSED as duplicate of https://forum.xda-developers.com/showthread.php?t=2719620.

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