4.2.1 - Nexus S Q&A, Help & Troubleshooting

I just got a nexus s after numerous problems with galaxy s 4g, I'm on Xenon HD 4.2.1 GSM T.Mobile, can I install any other 4.2.1 ROMs on top of this or will that result in a crash, someone please get back to me asap.
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You can flash any ROM any time. Make sure you do a factory reset. For better results, boot into cwm recovery and perform the following.
Factory reset
Go to mounts & storage. Format /system, /boot
Flash ROM, gapps
Flash kernel (optional)
Sent from my Nexus S

anshumandash said:
You can flash any ROM any time. Make sure you do a factory reset. For better results, boot into cwm recovery and perform the following.
Factory reset
Go to mounts & storage. Format /system, /boot
Flash ROM, gapps
Flash kernel (optional)
Sent from my Nexus S
Click to expand...
Click to collapse
Do you mean that as long as I do the CWM reset and everything, I can downgrade from 4.2.1 to 2.3?
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MrPapito429 said:
Do you mean that as long as I do the CWM reset and everything, I can downgrade from 4.2.1 to 2.3?
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Click to collapse
Yes you can. But do you really want 2.3?I wouldn't do that even in dreams. I may go back to 4.1.2. Nothing before that.
Sent from my Nexus S

I mean so I can get 4.1 for the sense ROM, so I do
Wipe Data/Factory Reset
Install Zip let's say 2.3 and that's it?
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Related

What is the latest version of CWM?

Ive recently ran into a problem where every time I installed a rom my Wi-Fi doesn't work. No matter what do( wipe davlik, wipe cache, wipe device) nothing seems to work. Plus if I reboot in CWM it boots right back into cwm. I'm currently on v5.8.3.4
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achandler2 said:
Ive recently ran into a problem where every time I installed a rom my Wi-Fi doesn't work. No matter what do( wipe davlik, wipe cache, wipe device) nothing seems to work. Plus if I reboot in CWM it boots right back into cwm. I'm currently on v5.8.3.4
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Click to expand...
Click to collapse
Flash different recovery.. try TWRP... I prefer it over CWM... its much better
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[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.
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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.
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Click to collapse
This but format SD through the computer first. This will wipe everything and make it "Zip" again.
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jayjay3333 said:
This but format SD through the computer first. This will wipe everything and make it "Zip" again.
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Click to expand...
Click to collapse
I completely forgot that step, and it is most definitely important.
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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.
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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?
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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.
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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
Click to expand...
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?
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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:
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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.
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Click to collapse
does that guide you have the the nexus s 4g as well?

Mobile Odin Pro: Should wipe data/cache?

Sorry for the noob question, but I intend to update my 8013 to JB and wonder whether it's needed to wipe data/cache? Thank you!
I moved forward without doing so and no issues yet...
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l think it depends what you're flashing.
Going from ICS to JB then no, don't wipe
Going from JB to ICS then yes otherwise it gets into a boot loop
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Yes like the member above said.
But also what rom are you on if you are on custom or customized stock rom and losing data is not a big issue then I would suggest a clean wipe and then install as that would clean you systems
I think a wipe always suggested but I had this same concern about data wipe.
I went from the stock German N8010 4.1.1 rom to the stock US N8013 4.1.2 rom using Mobile Odin, and I only wiped Dalvik (did NOT wipe data). I still have root, and all my data, and so far, I don't seem to have any issues with anything.
But of course, I had titanium back ups, and dropbox data back ups just in case..
hard brick?
Bulbous said:
l think it depends what you're flashing.
Going from ICS to JB then no, don't wipe
Going from JB to ICS then yes otherwise it gets into a boot loop
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Click to collapse
isnt it unsafe to do any wipe on a stock rom be it ICS or JB?wont it get hard brick by doing so?just wondering....
I haven't, not on my note 10.1... I used this method to get rid of the "Custom" status in my bootloader and about Settings. I also have a "0" flash count... I did run triangle away first though....

[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
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Yes I can enter recover y
The phones stuck at boot screen
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I did a system format from MOUNT partition in cwm
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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
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Click to collapse
Just reflash the ROM. And Google before posting a question next time please
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Encrypted? Have tried mostly everything.

I want start by saying that I did not take the 4.3 OTA from Verizon. I flashed my phone from 4.2.1 to 4.4.1 cm11 and various KitKat Roms. My last being mastamoons version. I wanted to flash back to a 4.3 TW ROM for stability. KitKat has been wonderful the days it decided to be 100% stable. But the myriad of issues plaguing my daily apps, freezing or phone rebooting warranted a flash to TW 4.3. I made a forum post because I was not entirely sure how to flash from 4.4 AOSP back to 4.3 TW and the advice given to me on CleanROM 8.1 thread was to format data, cache, dalvik and flash the zip. I did so and everything was fine. No bootloop (yet, kinda. Will get to that). So my phone rebooted and the first try got me to the start screen. Here is where things go wrong. It asks me for my PIN or Password as if it is encrypted. I've never encrypted my phone so I was perplexed. I thought maybe I triggered KNOX? But CleanRom 8.1 is touchwiz. But it doesn't not include KNOX from what I've read. I've wiped system and tried multiple methods of formatting the phone and I always get back to the same problem .
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The bootloop I solved after
I formatted /system. I even restored my previous cm10.2.1 backup which was on 4.3 and I did a manual factory reset from settings. Then I formatted data, cache, dalvik and still nothing.
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ErikFry said:
The bootloop I solved after
I formatted /system. I even restored my previous cm10.2.1 backup which was on 4.3 and I did a manual factory reset from settings. Then I formatted data, cache, dalvik and still nothing.
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Click to collapse
Try doing a complete wipe. What recovery are you using?
I have wiped system, data and cache. Isn't that a full wipe? I'm running the latest clockwork mod recovery. Thank you for your response.
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ErikFry said:
I have wiped system, data and cache. Isn't that a full wipe? I'm running the latest clockwork mod recovery. Thank you for your response.
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Click to collapse
Try another recovery maybe? I did get your PM
Sent from my S3 on AOKP
ErikFry said:
I have wiped system, data and cache. Isn't that a full wipe? I'm running the latest clockwork mod recovery. Thank you for your response.
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Click to collapse
You need to wipe your internal sdcard. Backup any important files to your external SD or a computer. Then wipe everything. System. Data. Internal SD card. Caches. Format system. Then flash the modem in the op if you haven't already. Should be in the op of the ROM you want to flash. Then flash the ROM. Might take up to 10-15 minutes for initial boot so be patient. You should be all good from there.
[email protected]'$ [email protected]@XY- eliminate white backgrounds and any form of ics/holo blue.
Thanks man. Will try tonight.
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