Develop Bugs

return to stock rom

hi, I did a trade with some here on the XDA for a galaxy nexus. The phone comes with BAMF ROM but I am thinking of returning to the completely stock rom. Since I do not know much information on this phone, I thought I will ask before doing anything stupid.
I am not sure exactly if this is a international or playstore phone (I think it is international) but I do know it is a GSM phone.
Also, it appears to me that the phone is already unlocked (and I think rooted but cannot be sure).
So my question is how exactly should I go through to get the completely stock as I kind of want to try stock JB first. Do I need to relock it and download the image from google (which image as I see there are two version of phone.
I may try different rom in the future so can I just download teh image and flash the rom without relock it? Or I should still lock the phone, flash, unnlock, unroot?
A little bit of background. I am using the phone on T Mobile's network here in the US, so I want to be able to continue using hte phone on the same T MO.
Thanks a lot for all of the helps guys.

Link to the step-by-step, amazing, descriptive guide here

thanks a lot. I follow that thread and I think I have returned the phone to the stock rom.
Quick question, I think my bootloader is still unlocked as when I checked the bootloader, it looks it still says unlocked. Now after I have flashed the stock rom, should I still root it and also install the recovery if I ever plan to play around with the different roms? As of now, when I into recovery, I see the little andrid icon but no selection.
thansk a lot guys.

PUTALE said:
thanks a lot. I follow that thread and I think I have returned the phone to the stock rom.
Quick question, I think my bootloader is still unlocked as when I checked the bootloader, it looks it still says unlocked. Now after I have flashed the stock rom, should I still root it and also install the recovery if I ever plan to play around with the different roms? As of now, when I into recovery, I see the little andrid icon but no selection.
thansk a lot guys.
Click to expand...
Click to collapse
If/when you want to root and mess with ROMs, you'll be using a custom recovery like CWM. You don't need to flash it until you choose to do those things.

thanks. Would I need to root again? The phone is already unlocked (as I did not lock it again). So, I would just have to root and then flash the custom recovery then?
BTW, I notice there's a very nice tool on the sticky that does everything. I am curious if I use that tool and let say choose to unlock it again or root again and such, would that be any issue? Ie, if it's already unlocked and you run unlock again, would that relock, etc?

PUTALE said:
thanks. Would I need to root again? The phone is already unlocked (as I did not lock it again). So, I would just have to root and then flash the custom recovery then?
BTW, I notice there's a very nice tool on the sticky that does everything. I am curious if I use that tool and let say choose to unlock it again or root again and such, would that be any issue? Ie, if it's already unlocked and you run unlock again, would that relock, etc?
Click to expand...
Click to collapse
You can easily root too if you want to in the future
I think you're talking about the toolkit... Me and others here don't recommend using that... Unlocking/locking the bootloader is easy anyways...
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

PUTALE said:
thanks. Would I need to root again? The phone is already unlocked (as I did not lock it again). So, I would just have to root and then flash the custom recovery then?
Click to expand...
Click to collapse
Flashing a custom recovery is part of the rooting process.
BTW, I notice there's a very nice tool on the sticky that does everything. I am curious if I use that tool and let say choose to unlock it again or root again and such, would that be any issue? Ie, if it's already unlocked and you run unlock again, would that relock, etc?
Click to expand...
Click to collapse
Don't use 1-click toolkits. You know how to do it manually, do it manually.

got it, thanks a lot guys. Will have to read up more on the root and flashing rom. Android is still relativly new to me.

[Q] do i need to unlock before rooting galaxy s3 (at&t)

Hi, I have been reading up about how/why i should unlock/root my android smart phone. I found interesting tidbit saying...some phones need to be unlocked before rooting and the rest don't. What about my samsung galaxy s3 (at&t) phone? is unlock required before rooting?
I tried following instructions for mrRobinson's method at http://www.xda-developers.com/android/how-to-root-the-samsung-galaxy-s-iii-xda-developer-tv/ .
But I ended up with an unstable phone. I kept getting pop-up error messages on the phone about a "android.process.acore" being stopped. I did a reset with power+volup+home and got things back to normal (lost by apps etc but i expected that). I re-tried with the same end result. Any idea on what went wrong here?
I will wait on a response before i try the second method (Chainfire) in the link mentioned above.
thanks in advance.

achincho said:
Hi, I have been reading up about how/why i should unlock/root my android smart phone. I found interesting tidbit saying...some phones need to be unlocked before rooting and the rest don't. What about my samsung galaxy s3 (at&t) phone? is unlock required before rooting?
I tried following instructions for mrRobinson's method at http://www.xda-developers.com/android/how-to-root-the-samsung-galaxy-s-iii-xda-developer-tv/ .
But I ended up with an unstable phone. I kept getting pop-up error messages on the phone about a "android.process.acore" being stopped. I did a reset with power+volup+home and got things back to normal (lost by apps etc but i expected that). I re-tried with the same end result. Any idea on what went wrong here?
I will wait on a response before i try the second method (Chainfire) in the link mentioned above.
thanks in advance.
Click to expand...
Click to collapse
Did you go to the following link: http://forum.xda-developers.com/showthread.php?t=1739426 ?
I rooted my at&t SGS 3 with this method and had no issues. I downloaded ODIN and the latest JellyBean ROM and it went flawless on the first attempt. My phone was and is not unlocked (figured I would wait at least 2 or 3 months after purchasing to request). If you think unlocking your phone might help, call AT&T direct first and ask for the unlock code. If you are potentially looking at a trip or vacation overseas then say so. They have worked with me on multiple occasions in the past. My wife is a foreign national so I really did take trips. Worse case scenario is that AT&T will tell you no and you have to unlock via other means.

aybarrap1 said:
Did you go to the following link: http://forum.xda-developers.com/showthread.php?t=1739426 ?
I rooted my at&t SGS 3 with this method and had no issues. I downloaded ODIN and the latest JellyBean ROM and it went flawless on the first attempt. My phone was and is not unlocked (figured I would wait at least 2 or 3 months after purchasing to request). If you think unlocking your phone might help, call AT&T direct first and ask for the unlock code. If you are potentially looking at a trip or vacation overseas then say so. They have worked with me on multiple occasions in the past. My wife is a foreign national so I really did take trips. Worse case scenario is that AT&T will tell you no and you have to unlock via other means.
Click to expand...
Click to collapse
Thanks..rooting went well with the JellyBean version. Not sure what the problem with ICS was... my phone did come with ICS from factory.

Unlocking your phone is a separate process and should not interfere with rooting. It seems like something else funky was going on there. The only reason to unlock your phone is for use with other carriers. Many of us here just root without unlock like myself.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

[Q] Installing a custom rom question

Hey guys,
I've never installed a custom rom and I was thinking of getting Cyanogen so I rooted my phone and got 6.xxxxx (forgot the number but the most recent one) CWM recovery but the recovery didn't work and it said "Long time no see". I did some research and I figured out that I need to unbrick my phone in able for CWM to function properly. Can someone just confirm and perhaps briefly explain why i need to do this. It seems hard and dangerous and if I could I would prefer to avoid doing it to get a custom rom. If I do need to do it, is the stickied unbricking guide up to date and working?
On another note, I have unlocked my phone (using Rogers on a Bell phone). Will installing a custom rom do anything to stop that from working?
Thanks!

TheAndroidinator said:
Hey guys,
I've never installed a custom rom and I was thinking of getting Cyanogen so I rooted my phone and got 6.xxxxx (forgot the number but the most recent one) CWM recovery but the recovery didn't work and it said "Long time no see". I did some research and I figured out that I need to unbrick my phone in able for CWM to function properly. Can someone just confirm and perhaps briefly explain why i need to do this. It seems hard and dangerous and if I could I would prefer to avoid doing it to get a custom rom. If I do need to do it, is the stickied unbricking guide up to date and working?
On another note, I have unlocked my phone (using Rogers on a Bell phone). Will installing a custom rom do anything to stop that from working?
Thanks!
Click to expand...
Click to collapse
Yes you are correct you need to use the unbricking guide here: http://forum.xda-developers.com/showthread.php?t=2044645
The reason for this is LG locked the boot loader for ICS as a result it can only be installed through gingerbread. If you have Windows 7 and not xp you could get errors during the kdz install portion. If that's the case use this to install the kdz file: http://forum.xda-developers.com/showthread.php?t=2149211
Then return to hereric's guide to complete the process. Good luck.
In regards to your 2nd question it shouldn't. But to be on the safe side it can only be unlocked from a stock ROM so I would install one of the many cwm installable cwm based on v20(x) first. ie. V20c, d, e or f. Then go to any ROM.
Sent from my LG-P930 using xda app-developers app

Thanks
Thanks Ok i guess I understand it now, so this whole unbricking is just downgrading your OS.
And I have windows 8 that wasn't an option Anyway i'm in the process of unbricking atm following your instructions i'm currently installing the kdz. I'll let you know how it goes but thanks a lot for the help, I really appreciate it.

[Q] Is my i927 partly-unlocked? (wanna update to ICS, hence asking)

Well, first things first...
I am a noob, and this is the first time I am using an android phone (moving from the Nokia N97 and Nokia C6). So please be patient (and tolerant).
The dealer I got this phone from wasnt sure if it was soft-unlocked (the ones which get locked if you update OS) or otherwise, and he most certainly didnt have (or give me) the unlock code.
The phone has been a delight for the past 3 months, and I love the the stunned look on the faces of everyone around, when I slide open the keyboard!! However, after doing a google search I discovered that there's an ICS update for the i927. And that has resulted in me googling to find out the likelyhood that my phone will re-lock to ATT.
To my surprise (or inability), I couldnt find a definite answer/guide as to what users of unlocked i927s, who do not have the unlock code, should do exactly, to "safely" update to ICS.
I have downloaded most of the tools (Odin 3.07, EFS 2.0.7 and the "I927UCLJ3_I927ATTLJ3_ATT" stock from samfirmware). And I had KIES and the drivers installed from day 1.
But the problem is that I dont have a road-map. Or a troubleshooting guide, in case I encounter unanticipated errors/crashes.
The other thing is uncertainty about the phone getting "re-locked". Some mobile repair guys say I should flash the update with my eyes closed (it wont re-lock to ATT, they say). However, the other side disuades me, and I have yet to find an across-the-counter shop which will give me an unlock code.
Of course, I think I can live without the update if I have to. But, I was hoping for a bit of help (or a step-by-step or link-by-link guide).
The other thing I want to know is whether flashing the ATT ICS update can also corrupt my IMEI details (and hence the need to back up with EFS)??
Finally, I would like mention that my phone is an un-rooted i927 (ATT) running Android 2.3.6.
Any help would be really be appreciated.

Not sure what to make of this..
The lack of replies has made me (even more) doubtful if a noob like me would be able to update my i927. I hope someone can tell me if my i927 is "updateable" or is the ICS update preferably for only the "authentic" i927 handsets??

sachnadkarni said:
The lack of replies has made me (even more) doubtful if a noob like me would be able to update my i927. I hope someone can tell me if my i927 is "updateable" or is the ICS update preferably for only the "authentic" i927 handsets??
Click to expand...
Click to collapse
If you have a SIM card from something not using the AT&T network, put it in. That will tell you if your phone is SIM unlocked or not (I think that's what you're asking).
In theory, applying the ICS update may re-lock your phone; it depends on how it was SIM unlocked in the first place.
My recommendation is:
1) Update to ICS (it's worlds better than GB)
2) If the phone re-locks to AT&T, then just buy and unlock code for a few dollars

phone's current status
scotte9999 said:
If you have a SIM card from something not using the AT&T network, put it in. That will tell you if your phone is SIM unlocked or not (I think that's what you're asking).
In theory, applying the ICS update may re-lock your phone; it depends on how it was SIM unlocked in the first place.
My recommendation is:
1) Update to ICS (it's worlds better than GB)
2) If the phone re-locks to AT&T, then just buy and unlock code for a few dollars
Click to expand...
Click to collapse
I am already using a local SIM card on the phone (Airtel) since the day I bought the phone. All the features are working on the phone, except the WiFi tethering, which is also the biggest reason for my doubts (and reluctance) about flashing the ICS update. The WiFi tethering feature does not recognise my Airtel data connection (2G), making me to believe some features are still AT&T specific (like the ringtones feature).
The other thing is, re-locking is a significant concern, but its not the biggest concern (for me). Since I first visited the "Captivate Glide" section on this forum, I have read about problems like the IMEI number (or other important phone data) corrupting, bricking my phone (which I know no one in the world can guarantee against), or the phone getting stuck in the start up mode (read it somewhere here, although I dont know if it was an OS update related failure).
Anyways, I hope that clears up the current status of my i927, and thanks for replying.

A bit more help please...
I know I asking basic noob questions about updating, but I was hoping for a bit more guidance actually...
Like what do I do with the I927UCLJ3_I927ATTLJ3_ATT.zip file?? Do I unzip it, or just copy it the phone memory and reboot into Odin??
The other thing is I started the EFS app on my PC and connected my phone to it, but the IMEI and other numbers are just all 0s. So, I am thinking, I did something wrong there as well...
I am well aware that no one in the world can guarantee against bricking a phone. I just want to have a proper guide on how to update, so that I have the best odds possible

sachnadkarni said:
I know I asking basic noob questions about updating, but I was hoping for a bit more guidance actually...
1. Like what do I do with the I927UCLJ3_I927ATTLJ3_ATT.zip file?? Do I unzip it, or just copy it the phone memory and reboot into Odin??
2. The other thing is I started the EFS app on my PC and connected my phone to it, but the IMEI and other numbers are just all 0s. So, I am thinking, I did something wrong there as well...
I am well aware that no one in the world can guarantee against bricking a phone. I just want to have a proper guide on how to update, so that I have the best odds possible
Click to expand...
Click to collapse
1. It seems you're trying to upgrade your Glide via Odin. Unzip the zip, get all the files, put them in Odin folder (NOT the SD card, Odin is a PC-based tool) in the forums to proceed.
EDIT: Google is man's best friend. This is the Odin guide I followed when just a week ago I'm still new to my Glide: http://androidromupdate.com/2012/11/10/i927uclj3-new-ics-4-0-4-for-samsung-sgh-i927-captivate-glide/
2. Your EFS may already be dead Or I don't know, never used that tool before.
Sent from Samsung Captivate Glide @ I927UCLJ3

Okay I'll still advice you use the efs tool to. Back up your efs foder,then put your phone in download mode, using Odin flash the stock ICS ROM when its through flash any of the recovery through Odin again then allow the phone to reboot. you can now flash any of the ROMs I prefer the lite ROM anyways.
Good luck.
Sent from my SGH-I927 using xda premium

Stuck on Samsung boot screen

I rooted my old milestone many years ago but havee been keeping my devices stock ever since, until today that is. Today I decided I wanted to try to root my Samsung SGH-I747M with Telus and everything seemed to start off smoothly. Once installed the SuperSU stopped working. I tried fixs I had read online such as updating the app, but this did not work. I read on a forum that you could flash something to disable know to help fix the problem. When I tried going this avenue I was not able to reboot my phone. I tried restoring from a backup taken before flashing, but I havent done any of this in so long im not entirely sure the backup took properly. At one point I got a message saying no OS was installed but after restoring this seemed to go away. I apparently do not remember anything about rooting from my milestone and am hoping someone may be able to help me get out of this mess. I am currently downloading the stock firmware and I think I will try flashing it tomorrow. I also was hoping someone could point me in the direction of a thread on xda that went into a more detailed explanation of how rooting works, what specifically roms and flashing all is and does. Any help is greatly appreciated.

cdriver said:
I rooted my old milestone many years ago but havee been keeping my devices stock ever since, until today that is. Today I decided I wanted to try to root my Samsung SGH-I747M with Telus and everything seemed to start off smoothly. Once installed the SuperSU stopped working. I tried fixs I had read online such as updating the app, but this did not work. I read on a forum that you could flash something to disable know to help fix the problem. When I tried going this avenue I was not able to reboot my phone. I tried restoring from a backup taken before flashing, but I havent done any of this in so long im not entirely sure the backup took properly. At one point I got a message saying no OS was installed but after restoring this seemed to go away. I apparently do not remember anything about rooting from my milestone and am hoping someone may be able to help me get out of this mess. I am currently downloading the stock firmware and I think I will try flashing it tomorrow. I also was hoping someone could point me in the direction of a thread on xda that went into a more detailed explanation of how rooting works, what specifically roms and flashing all is and does. Any help is greatly appreciated.
Click to expand...
Click to collapse
General section is most likely the best place for that.
Here's a How-to that should get you started: http://forum.xda-developers.com/showthread.php?t=2538991
And here is the Sticky index: http://forum.xda-developers.com/showthread.php?t=1725839 Lots of good guides and info in there!

General section is most likely the best place for that.
Click to expand...
Click to collapse
The Only problem is I already attempted to follow this and my phone will no longer boot up. Also I tried navigating through the stickies. couldn't find much info for my device. I will be trying to flash the stock firmware tonight but I want to have a clear understanding on what flashing is and what the difference is between os firmware kernel and rom and such BEFORE flashing this firmware tonight. I hope someone will be able to help.

cdriver said:
The Only problem is I already attempted to follow this and my phone will no longer boot up. Also I tried navigating through the stickies. couldn't find much info for my device. I will be trying to flash the stock firmware tonight but I want to have a clear understanding on what flashing is and what the difference is between os firmware kernel and rom and such BEFORE flashing this firmware tonight. I hope someone will be able to help.
Click to expand...
Click to collapse
Well that info is already in the Sticky Index. Understanding what you're doing (or about to do) is really important but you gotta start reading, it's all there.
OS, firmware and ROM are the same thing.
When your phone boots, it basically goes: Bootloaders -> Kernel -> ROM (OS).
The kernel has pretty much all the "underground" controls (RAM, Mhz, governor, scheduler, BT, Wifi, etc).
I won't write everything but those are the basics.
Also, having a Canadian variant of the S3 (that's what the M is for), doesn't change much other than flashing bootloaders and stock ROM (which you'll wanna use the Canadian variant bootloaders and Telus ROM for stock). Everything else is basically the same.

Also, having a Canadian variant of the S3 (that's what the M is for), doesn't change much other than flashing bootloaders and stock ROM (which you'll wanna use the Canadian variant bootloaders and Telus ROM for stock). Everything else is basically the same.
Click to expand...
Click to collapse
Sweet I will definitely check that out. So I did flash twrp to my phone. Is it possible that I flashed the version say for the i747 but not the m version and that is why the phone wont move past the samsung screen? Also should I attempt to get rid of twrp before flashing the stock firmware. This should answer all my questions and then I will explore the stickies some more.

cdriver said:
Sweet I will definitely check that out. So I did flash twrp to my phone. Is it possible that I flashed the version say for the i747 but not the m version and that is why the phone wont move past the samsung screen? Also should I attempt to get rid of twrp before flashing the stock firmware. This should answer all my questions and then I will explore the stickies some more.
Click to expand...
Click to collapse
If flashing a stock ROM, flash the Telus one. If flashing a custom ROM, it doesn't matter (I747 or M variant), as long as it's D2LTE.
Your recovery doesn't change anything to flashing with Odin, it will overwrite it.

Flashing the stock firmware fixed my problems. Thanks for all of your help and I will definitely be checking out the links that you sent me before trying to root again tomorrow.