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nexus s not booting up .. stuck on bootlogo

Hello,
I tried rooting it with one click root and it worked fine.
then i tried going into recovery and falsh cm7 ... but it dint boot up
i cant even get to recovery anymore .. shows me a android sign with a box showing a arrow outwards
i can go into bootloader though
and the worst part is its my friends phone. Can somebody please help me to get this fixed pls

I believe its time for odin
Sent from my SPH-D700 using xda premium

gtuansdiamm said:
I believe its time for odin
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
Are you talkin about the unrooting section of this thread?
http://forum.xda-developers.com/showthread.php?t=1088494

you need to flash a recovery via fastboot, go into recovery and wipe the phone, flash the latest cyanogenmod, and flash the latest gapps.
there are a bunch of guides in the nexus s general forums, and in the development forums.

See this is why I hate one click root methods. When something goes wrong you don't know how to fix it.
Flash a recovery using fastboot. Then wipe data factory reset, wipe cache, wipe dalvic cache. Mount storage and transfer the rom you want to flash. Then choose install from zip. Then reboot and you should be up a d running.
Sent from my Nexus S 4G using xda premium

Rem3Dy said:
See this is why I hate one click root methods. When something goes wrong you don't know how to fix it.
Flash a recovery using fastboot. Then wipe data factory reset, wipe cache, wipe dalvic cache. Mount storage and transfer the rom you want to flash. Then choose install from zip. Then reboot and you should be up a d running.
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
which recovery should i flash for the fido nexus s canada?
can u guys pls provide me the link . tried to look for it. i have flashed recovery but still not able to boot up with
http://forum.xda-developers.com/showthread.php?t=1033269
this recovery image..
and if i go by odin method i get no radio. since mine is nexus s not nexus 4g
any help?

Pls help fido users.. i have spent almost 8 hours on this now .. still no success
edit : now i am able to boot up and now it shows a roaming icon on the network?

need help!!!anyone

im having trouble with my phone...really need some one to guide me to get my phone working again...i have DHD...im not sure whether i've install a rom correctly...now when i turn on my phone it's just stays on the boot screen...pls need some advised n help

crusified said:
im having trouble with my phone...really need some one to guide me to get my phone working again...i have DHD...im not sure whether i've install a rom correctly...now when i turn on my phone it's just stays on the boot screen...pls need some advised n help
Click to expand...
Click to collapse
Did you wipe the dalvik cache after flashing the rom? And what do you mean by: "im not sure whether i've install a rom correctly"?

it sounds like you didn't wipe it first... Boot into recovery and then hit wipe system and cache. After that hit sellect zip from sd card and select your rom. That should give you a fresh system install
Sent from my HTC Glacier using xda premium

tp2215 said:
it sounds like you didn't wipe it first... Boot into recovery and then hit wipe system and cache. After that hit sellect zip from sd card and select your rom. That should give you a fresh system install
Sent from my HTC Glacier using xda premium
Click to expand...
Click to collapse
Try wiping the dalvik cache first, then rebooting before you do ^this^. If you still get stuck at the boot screen, then do a clean install.

Tutorial for flashing/installing a kernel

Hi
I just bought my first android phone which is a Google Nexus S, and I guess flashing/installing (I never know which is the correct term to describe this action!) a kernel from XDA can give better performance or some extra features, e.g. BLN
However, I don't seem to be able to find a complete tutorial of how to flash/install a kernel, can anyone help me with this please?
Thanks in advance

First you need root.
Reboot into recovery and wipe Dalvik cache maybe twice.
Then find the kernal in your SD and install
Reboot
Sent from my Nexus S 4G using XDA App

wipe dalvik cache once. then proceed to flash kernel

http://forum.xda-developers.com/showthread.php?t=1229794
[ACS] [HOW TO] Root, Unroot, Flash Roms/Kernels/Themes, and CWM! (17 videos) 12/16/11
Sent from my Nexus S 4G using xda premium

Is this the same guy that made multiple accounts just to make it seem like his thread was very active? If so your bad.
Sent from my Nexus S 4G using XDA App. Developer of brickROM, and OP of XDA Thread of The Year 2011.

wipe dalvik cache??
Does it mean I will lose all my data please?

double Wipe

weylon said:
double Wipe
Click to expand...
Click to collapse
Does it mean I will lose all my data please?

Wiping cache does not delete your data.
Unlocking the bootloader to get a custom recovery will wipe everything.

albundy2010 said:
Wiping cache does not delete your data.
Unlocking the bootloader to get a custom recovery will wipe everything.
Click to expand...
Click to collapse
so in this case, flashing a kernel will NOT delete my data, correct? since I don need custom recovery, and I have already rooted

U dont need to wipe cache. Simply wipe delvik cash then flash your kernel on your sensation.
Sent from my MIUI.us Sensation 4G using XDA App

luckyvictor said:
so in this case, flashing a kernel will NOT delete my data, correct? since I don need custom recovery, and I have already rooted
Click to expand...
Click to collapse
You don't have a custom recovery? I suppose you could use Flash Image GUI but you're really gonna wanna get a custom recovery. Especially since you want to make a backup before you flash in case something goes awry.
*if you didn't wipe /system and /boot it is NOT A FULL WIPE*

Doesnt matter just wipe dalvik cache and ur good. Through custom recovery
Sent from my MIUI.us Sensation 4G using XDA App

clockwork recovery is the base for flashing anything.
http://forum.xda-developers.com/showthread.php?t=1007782
use this guide to install CWM(See Part 3 of the Guide)
once done just wipe dalvik cache in CWM and flash any kernel .zip file

you dont need to wipe dalvik cache, cache, or anything else. as these dont have anything to do with the kernel. you can flash kernels via recovery(in .zip form), or with fastboot/terminal emulator(in boot.img form).

[Q] How To Prep Your Rooted Nexus S Phone Before You Sell/Gift It

I'm thinking of selling my phone and want to make sure that it's been cleaned of all personal data. My phone is rooted and on CM 10.0
Do I just do the following:
>>Reflash latest clockworkmod recovery, boot into recovery and wipe data + cache + dalvik<<
Is it preferable to sell the phone with the stock ROM? If so how can I do that (assuming it's possible).
Thanks.

I would probably do a full wipe and flash the factory images thru fastboot and lock the bootloader. This will return it to brand new out of the box software.
Sent from my ns4g using Tapatalk 2

p1gp3n said:
I would probably do a full wipe and flash the factory images thru fastboot and lock the bootloader. This will return it to brand new out of the box software.
Sent from my ns4g using Tapatalk 2
Click to expand...
Click to collapse
This but format SD through the computer first. This will wipe everything and make it "Zip" again.
Sent from my Nexus S using xda premium

jayjay3333 said:
This but format SD through the computer first. This will wipe everything and make it "Zip" again.
Sent from my Nexus S using xda premium
Click to expand...
Click to collapse
I completely forgot that step, and it is most definitely important.
Sent from my ns4g using Tapatalk 2

The best way would be to flash the factory image, which will return everything stock and new. I have a guide here for it.

jayjay3333 said:
This but format SD through the computer first. This will wipe everything and make it "Zip" again.
Sent from my Nexus S using xda premium
Click to expand...
Click to collapse
I've been formatting the SD through CWM.
What is the difference between formatting in CWM or a computer? CWM sees to wipe it clean, or am I missing something?

billford said:
I've been formatting the SD through CWM.
What is the difference between formatting in CWM or a computer? CWM sees to wipe it clean, or am I missing something?
Click to expand...
Click to collapse
Formating through the computer will wipe and defragment it as well. It is a 'true" format than with CWM. CWM just wipes but not like through the computer.
Sent from my Nexus S using xda premium

jayjay3333 said:
Formating through the computer will wipe and defragment it as well. It is a 'true" format than with CWM. CWM just wipes but not like through the computer.
Sent from my Nexus S using xda premium
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Click to collapse
i gotta question im selling my nexus s 4g rooted i want to keep the root on it but i want to wipe everything from it...should i just go into cwm and wipe factory reset and all that happy stuff? will this wipe everything?

subnoize soulja said:
i gotta question im selling my nexus s 4g rooted i want to keep the root on it but i want to wipe everything from it...should i just go into cwm and wipe factory reset and all that happy stuff? will this wipe everything?
Click to expand...
Click to collapse
I would format SD card through the computer than flash factory image from Google than root again by fastboot flash CWM and flash SU. This will ensure all is wiped and it will amaze the new user how fast it is. :thumbup:
Sent from my Nexus S using xda premium

DJBhardwaj said:
The best way would be to flash the factory image, which will return everything stock and new. I have a guide here for it.
Click to expand...
Click to collapse
does that guide you have the the nexus s 4g as well?

[Q] Accidently clicked Format system in CWM

while installing a custom roM
I accidently clicked on format system by mistake
Now my phone is stuck in d BOOT screen
can some1 plz temme hw to get my phone back
Im so screwed:crying::crying::crying:

jamieloboxperiazl said:
while installing a custom roM
I accidently clicked on format system by mistake
Now my phone is stuck in d BOOT screen
can some1 plz temme hw to get my phone back
Im so screwed:crying::crying::crying:
Click to expand...
Click to collapse
Can you get back to recovery to flash a new ROM?
I have flashed many ROMS recently to try them out and also had a similar issue with one or two of them.
On my Note 2 I hold power, home and volume up to cycle power and get back to recovery and simply flash a new ROM, presto...

everytime i.flash a rom. i format everything. it might be you flashed a corupt file. redownload reflash
Sent from my SGH-T989 using xda app-developers app

Yes I can enter recover y
The phones stuck at boot screen
Sent from my C6502 using xda premium

I did a system format from MOUNT partition in cwm
Sent from my C6502 using xda premium

Not sure what is going on but here is how I flash a ROM from recovery and so far so good.
Copy rom file to external sd card in phone.
Do a full factory wipe, cache and dalvik.
Install rom.
Install Gapps if necessary or desired.
Wipe cache and dalvik again.
Reboot
Note that some roms will give you a recommended list of what to wipe if doing a new install or upgrade of that rom, if such instructions exist its best to follow those instead but the above has worked for me for a while now.

jamieloboxperiazl said:
I did a system format from MOUNT partition in cwm
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Click to collapse
That's what is advised to do before flashing a completely different ROM anyway by some. From recovery, flash the ROM again, and if the ROM is not corrupted (check md5 or whatever comes with it), you should be good to go.

jamieloboxperiazl said:
I did a system format from MOUNT partition in cwm
Sent from my C6502 using xda premium
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Just reflash the ROM. And Google before posting a question next time please
Sent from my SGH-T959 using xda app-developers app