Should I root? - Xoom Q&A, Help & Troubleshooting

Should I root? - Xoom Q&A, Help & Troubleshooting

I just bought a wifi only xoom and I'm loving the awesomeness of the device. I don't think I'm a noob, I've rooted all of my android devices but I'm a alitle hesitant. Besides that small eclair update I can't remember the last time we had an unfinished os. Don't get me wrong I still love this device and won't trade it for anything but is is worth rooting just yet? Once we get the next honeycomb update can we update with root? I don't think you can but will will the root process for any updated version be quite easy because of the nature of the xoom? Just a a few questions, thanks...
Sent from my Xoom using Tapatalk

I haven't rooted either. My phone is rooted and rommed but I'm hesitant with my Xoom

YES!
There have been a lot of threads with that question:
http://forum.xda-developers.com/showthread.php?t=1008674&highlight=root
http://forum.xda-developers.com/showthread.php?t=1039304
http://forum.xda-developers.com/showthread.php?t=1036185
http://forum.xda-developers.com/showthread.php?t=1017223
There are other threads that have helpful information embedded so just search for "root" and you will find a lot of stuff!

First off the fact that you are on XDA leads me to believe that you will eventually root your Xoom. There are not really any clear cut advantages of leaving it stock. There will be an update in the future to enable the SD card and being stock may make that easier to apply, but you probably know as well as the rest of us that we ROOTED users will see that update in a flashable .zip file. The advantages of Rooting are pretty clear however, Superuser permissions to remount the system folder as R/W in order to add more features, such as Ad-hoc network connectivity. Over Clocking which in my opinion not terribly important but it's nice to have the option. We can flash a custom recovery to make nandroid backups as well as aid in further customization. We can enable USB host mode and use 3rd party accessories. And last but not least we have SD card usage before everybody else. So there you are, there are lots of reasons to Root your Xoom. It's super easy and the sooner you do it the better because unlocking the bootloader will wipe your storage. Have fun and please reply back if you decide to root it.

mr_wrong_0 said:
There will be an update in the future to enable the SD card and being stock may make that easier to apply, but you probably know as well as the rest of us that we ROOTED users will see that update in a flashable .zip file.
Click to expand...
Click to collapse
Has there been any indication of when that update will come out? I am personally thinking it will be easier for me to wait and root my Xoom after we get that (and then it should be possible to use an update.zip type root). On the other hand, if it's still several months away it might be time for me to take the plunge

Related

How to Root Non-Sprint (Cellular South, Bluegrass Cellular, etc) CDMA Hero

Update (October 7, 2010)
Use ngholson's guide to root: http://forum.xda-developers.com/showthread.php?t=581869&page=53#post8358998
Posts in the first 40 or so pages of this thread are old old old. Try browsing through the last 10 or so pages if you have any problems.
I may put a guide for using an App to root in this first post, but I don't have time right now.
OLD OLD OLD Manual Root:
This will still work, but ngholson's guide is a lot easier and you should definitely try it first.
NOTICE / WARNING / READ THESE:
1. I give no guarantees for anything that may or may not result from following these instructions (or any mistakes made).
2. Doing this will probably void your warranty, BUT as long as you don't run some other carrier's RUU (not talking about ROMs here, talking about the official upgrade files. what's important is that your hboot version doesn't change) you can always just flash your carrier's RUU to go back to unrooted completely stock.
Known issues:
NONE! This is a clean procedure that leaves your current rom as is. Any issues you have will be related to whatever ROMs you choose to flash or additional packages you choose to flash to your current rom
Steps:
1. Upgrade to 2.1
We know this works with the initial 2.1 updates, but later updates may patch it. If you have installed additional updates from your carrier, you may have to flash the original RUU to be able to root.
2. Download and extract the Android SDK
http://developer.android.com/sdk/index.html
You really only need this for the adb binary. If anyone can suggest a better way to get it than downloading the entire SDK, let me know.
3. Download and install HTC Sync
Some carriers have specific versions of HTC Sync (I know Cellular South does).
You could also just install the adb drivers.
4. Download the hack and extract it to your SDK tools directory. (or wherever you have adb)
It's attached to this post.
5. Turn on USB Debugging on your phone
Settings -> Applications -> Development -> USB Debugging
6. Plug your phone in USB
7. Run the script
For Windows this is runindos.bat. You should be able to just double click it.
That's it. This will flash the Darch version of AmonRA's recovery.
8. BACKUP
At this point you should probably backup your current stock rom (see Recovery guide below) and backup your PRL. (navalynt has good instructions on this in his root guide).
Now you can flash a custom rom or just flash the provided su.zip (see Recovery guide below) for Superuser Permissions (root) within your current rom.
Recovery
Recovery is where you can backup, restore, and flash ROMs or additional app zips.
To enter Recovery mode on your phone, power the phone off. Then hold home and press the power button. Keep holding home until you get the recovery screen.
You'll see several options, but the first thing you'll want to use is Backup.I've always used the nandroid option, not sure of the differences between it and bart. Backing up does exactly what you'd expect: copies your current ROM to your sd card. It doesn't change anything on the phone. It does take a few minutes so be patient.
Most roms will suggest you wipe first, and there is a menu option for that in recovery also. Just choose wipe, then factory reset. This does nothing to your sd card and only wipes application data (app installed from the market, settings for any app, etc).
After you've backed up, Recovery is also where you flash new ROMs or additions to your current ROM. It's easiest to pick a rom you want on your pc, and transfer it to your phone over usb. you can either do this the normal way, or if you're already in recovery, there is a USB-MS option you can use. Some Recoveries require flashable zips to be in the root of your sd card (not in any directory). After the ZIP is on your sd card, choose "install zip from sdcard" and pick the zip of the ROM you want. That's it. After it's done flashing, reboot your phone. If you wiped and flashed a full ROM, the first will take several minutes.
If you flash a ROM and either get stuck in a boot loop or just don't like it, go back into recovery under the Backup option and choose nandroid restore. Pick the option you get (it's a directory named with your phone's serial number) and you'll see a list of backups named with the date/time they were created. Choose which one you want to restore, wait a few minutes, then reboot and you'll be back to exactly where you were.

I've learned that the exploit used on the Sprint Hero doesn't work on the CS Hero because it uses mmap_min_addr. This means that exploits which rely on a null pointer dereference (like the Sprint exploit) won't work.
So here's what I think I need:
1) I'll be watching bugtraq, etc... for non null pointer dereference local kernel vulnerabilities. (I don't think I know 100% what that means yet.)
2) I also need to learn how to know if a vulnerability is applicable. Like this one http://www.securityfocus.com/bid/36834 . I don't even know really where to begin to see if I can use that.
3) Once I've found a vulnerability, how do I exploit it? I realize there will probably be proof of concept for the exploit, but how will I turn that into something that executes a specified command like asroot2 does. Is the source available for asroot2?
4) I wonder if I need to bother figuring out if the source used to build the kernel for CS is different from Sprint. Is a change in config.gz enough to legally require HTC to provide me with source specific to the CS version?

Keep up the good work
I know there aren't many of us, but I'm really hoping to root my hero sometime soon. I wish I could help but I picked my engineering field because it didn't require learning any computer languages haha

cdiamond333 said:
I know there aren't many of us, but I'm really hoping to root my hero sometime soon. I wish I could help but I picked my engineering field because it didn't require learning any computer languages haha
Click to expand...
Click to collapse
Glad to see at least one person interested enough to join XDA!
Though I'm afraid we're going to end up waiting until someone roots the Droid and/or Droid Eris and hope that works for us as well.
Can anyone give us an idea about where to find the RUU specific to Cellular South? Do those come from HTC, the carrier, or do they just "magically" make their way to the net from whoever happens to have access to them?

Really Like To See a Root
I would also like to see some success to this post as well... I have been with cellular south for years and this is the best phone they have produced! It only needs root access! Im a computer engineer a Miss. State, and I would love to see what I could do with this phone.
Maybe I could find an exploit... but it might take me longer to find it seeing that I am still in the beginning stages of my discipline.
But all I wanted to say is: LETS GET THIS ROOT!!

Root cellular south hero
I agree I have the htc hero from cellular south and would like to share the internet with my computer but cant tether unless phone is rooted

Hey guys!
I, too, am a CellSouth Hero haver... and I'm searching high and low for the procedure as well! I'll be checking back here and also searching round and posting anything I find.
If anyone gets an update, please email me at [email protected]

Help
I too own a CS hero and i am looking all over the net for a way to root this phone. if a way can be found will any roms work on it or will new CS specific roms have to be developed. If that is the case then i am afraid we CS users won't gain access to this for awhile as the customer base is quite small compared to sprint

OBSt4l0n said:
I too own a CS hero and i am looking all over the net for a way to root this phone. if a way can be found will any roms work on it or will new CS specific roms have to be developed. If that is the case then i am afraid we CS users won't gain access to this for awhile as the customer base is quite small compared to sprint
Click to expand...
Click to collapse
Well I've been surprised by the response to this thread, so hopefully there is more interest specific to CS than we may realize.
Ideally, ROMs made with Sprint Hero in mind will work on the CS Hero. I haven't put much effort into it without having root access yet, but when I get a chance I'm going to take the time to compare things like the radio image, etc and see just how much they differ from one to the other. If nothing else, hopefully we can replace the different pieces in the custom ROMs and be able to use them.
I will update this thread with what I find, and hopefully others will contribute as well.

??
Any news??

MrDanger said:
Any news??
Click to expand...
Click to collapse
I know, right? Seriously, is anyone out there?
i have posted treads at various sites, and they all get buried fairly quickly.
Would love to solve this issue... surely someone out there would find this to be a challenge worth taking up...
i hope.
Oh, and happy thanksgiving...

markachee message
Check Ur profile for a message that I left u.

It's just going to be a waiting game.
First someone has to find an exploit, most likely in the Linux kernel. This doesn't have to be something specific to our phone. It's more likely that it will be a generic thing that will work for us, Droid, and Droid Eris (as well as Linux in general).
It's not likely I'd be able to discover one of these exploits, so I'm watching for exploits coming out (bugtraq, etc) that might work for us. There really hasn't been anything at all since the pipe.c vulnerability that worked for the Sprint Hero.

Really one thing we need that we should be able to get now is an RUU specific to Cellular South's Hero. From what I understand, an RUU lets you reset your phone to a factory/updated image in the event something goes wrong. It wouldn't directly help us get root, but it would be a "safety net" for those of us screwing with our phones trying to get root.
Anything you guys could help dig up on where/how to find it would be awesome.

This looks promising. At least have some people in this thread that know enough to be able to compile for the phone:
http://forum.xda-developers.com/showthread.php?p=5034122
Also, realized I never mentioned I was looking at the "enlightenment" exploit set from http://www.grsecurity.com/~spender/

Just chiming in, had my Cell South hero for about a month and have been following this thread with the hope of seeing our phones rooted. I am a technician/admin with some coding and linux experience, but I am unfamiliar with rooting cellphones. anything I can do to help let me know.

tether
you can usb tether useing pda net from the market without root

I have seen pda net, i'm not interested in just tethering but thank you.

mine comes in tuesday

markachee said:
This looks promising. At least have some people in this thread that know enough to be able to compile for the phone:
http://forum.xda-developers.com/showthread.php?p=5034122
Also, realized I never mentioned I was looking at the "enlightenment" exploit set from http://www.grsecurity.com/~spender/
Click to expand...
Click to collapse
Here's the compiled programs within that exploit

Rooted my Xoom 3.2...now what?

Let me start off by stating that I'm not totally new to rooting android devices. I own a EVO 4G and have been messing around with root for a while on it. The DEV community is huge and there are a overwhelming amount of options available.
Like I said, I already rooted my stock 3.2 Xoom and have d/l all the essential ROOT apps like Titanium, MyBackUp Pro and a few others. However, I'm not quite sure where to go next. There doesn't seem to be too many options in term of ROMS and I'm not quite grasping what the ROMS have over rooted stock.
I'm not asking this in a nasty way, I genuinely want to know what the next logical steps are to maximize the use of my Xoom.
Besides that general question I have a few more specific questions:
1. Can I download ClockWorkMod Recovery through the app?
2. Can I overclock using SetCPU?
3. Haven't put a MicroSD card into this thing yet but am I able to save apps to the SD with rooted stock?
Sorry for the noobiness!

SantinoInc said:
Let me start off by stating that I'm not totally new to rooting android devices. I own a EVO 4G and have been messing around with root for a while on it. The DEV community is huge and there are a overwhelming amount of options available.
Like I said, I already rooted my stock 3.2 Xoom and have d/l all the essential ROOT apps like Titanium, MyBackUp Pro and a few others. However, I'm not quite sure where to go next. There doesn't seem to be too many options in term of ROMS and I'm not quite grasping what the ROMS have over rooted stock.
I'm not asking this in a nasty way, I genuinely want to know what the next logical steps are to maximize the use of my Xoom.
Besides that general question I have a few more specific questions:
1. Can I download ClockWorkMod Recovery through the app?
2. Can I overclock using SetCPU?
3. Haven't put a MicroSD card into this thing yet but am I able to save apps to the SD with rooted stock?
Sorry for the noobiness!
Click to expand...
Click to collapse
1. No. You have two choices and you can find them by looking here: http://forum.xda-developers.com/showthread.php?t=1074979 and here: http://forum.xda-developers.com/showthread.php?t=1235170
2.Yes, once you are rooted and have installed either a Tiamat rom or kernel or Rogue kernel. You will find them in the Xoom Heaven thread in the begining of the General section.
3 Not without doing 2., above. That's one reason to root and mod. FYI, most Honeycomb apps aren't initially setup to write to the external sdcard and require a bit of fooling with, and most, if not all apps need to be run from internal storage (sdcard). I couldn't do without the external sdcard though...I use it to flash fliled, backup nandroid, and have TB backing up my apps and data to it, as well as playing my music, and video collection from it.

[Q] First android, very overwhelmed. A Question about SD cards.

This is my first android and only my second smart phone. My first was iphone 3GS.
I've had the phone for just a few days now and I'm beginning to understand things but I still have a bunch of questions. I'm sure it's answered in a guide somewhere already but I'm having trouble understanding the lingo to understand the guide...
So this phone obviously doesn't have an SD card port. But does that mean there is no way to create a virtual SD card? Is there one already on the phone that I don't understand how to access it?
In apps that require other files stored on an SD card it often brings up a browser with the location /SD card/. Is this an actual folder location? How can I access it and how can I put files there?
I apologize in advance because I probably will not be able to understand your directions since I just don't understand android talk yet.
I have no idea what sort of info you guys might need so here it all is.
HTC One X
AT&T 4G LTE
USA
Rooted using [ROOT] 1.85 One Click Root! - ACT NOW, MAY NOT LAST FOREVER! (I'm not sure how I did this or if I was supposed to. Just following instructions...)
I have no idea what a bootloader is, just that it can be unlocked. Should I do this? What does that mean?
I have a vague idea of what a rom is and i'm running the vanilla stock one. Any advice of what the advantages are of changing my rom and how to do it? Again I looked at the guides but I can't understand it...
I have no idea what a kernal is.

PhatCrits said:
This is my first android and only my second smart phone. My first was iphone 3GS.
I've had the phone for just a few days now and I'm beginning to understand things but I still have a bunch of questions. I'm sure it's answered in a guide somewhere already but I'm having trouble understanding the lingo to understand the guide...
So this phone obviously doesn't have an SD card port. But does that mean there is no way to create a virtual SD card? Is there one already on the phone that I don't understand how to access it?
In apps that require other files stored on an SD card it often brings up a browser with the location /SD card/. Is this an actual folder location? How can I access it and how can I put files there?
I apologize in advance because I probably will not be able to understand your directions since I just don't understand android talk yet.
I have no idea what sort of info you guys might need so here it all is.
HTC One X
AT&T 4G LTE
USA
Rooted using [ROOT] 1.85 One Click Root! - ACT NOW, MAY NOT LAST FOREVER! (I'm not sure how I did this or if I was supposed to. Just following instructions...)
I have no idea what a bootloader is, just that it can be unlocked. Should I do this? What does that mean?
I have a vague idea of what a rom is and i'm running the vanilla stock one. Any advice of what the advantages are of changing my rom and how to do it? Again I looked at the guides but I can't understand it...
I have no idea what a kernal is.
Click to expand...
Click to collapse
Welcome to the world of Android!
Our phone's file system is as follows:
2gb for Apps (in the /data location)
10gb for User Data (known as the "sdcard", in the /sdcard location, basically a virtual sd card)
4gb for system files and such.
Use any file explorer to acces the files in /sdcard. However, you can only edit the other "partitions" (as they are called, basically the other parts of the file system as described above) with root.
Root is basically giving you access to those other parts of the system so that you cant usually access so that you can modify your system
Bootloaders are the things that load the device firmware. If you unlock them, you can write custom things to boot the system up, such as custom recoveries (used to install custom ROMs, back your system up, etc) and custom kernels.
If for now you aren't going to use any custom ROMs then don't worry about Bootloader Unlock. If you want to use custom ROMs then you will need to unlock your bootloader and install a custom recovery.
Custom ROMs really come in two different types: ones that remove extra crap that AT&T/HTC install on there but are still very stock looking and give you a faster stock experience, and also those ROMs that completly deviate from stock and have an entirely different look and feel.
The second category of ROMs also can be broken up into two categories. One of them is AOSP (Android Open Source Project) ROMs that give you the vanilla look of what Ice Cream Sandwich is supposed to look like (look up screenshots of a Galaxy Nexus to see what it looks like). An example of ROMs like this are CM9 and AOKP. They both give you extremely high customizability. There are also ROMs that deviate from the standard type of different ROMs, such as the MIUI ROM. These give your phone a completely different look and feel like the AOSP Roms except they aren't trying to mimic AOSP. Check out screenshots of the MIUI ROM to see what I mean of a different ROM.
Ask any more questions you have.

rohan32 said:
Welcome to the world of Android!
Our phone's file system is as follows:
2gb for Apps (in the /data location)
10gb for User Data (known as the "sdcard", in the /sdcard location, basically a virtual sd card)
4gb for system files and such.
Use any file explorer to acces the files in /sdcard. However, you can only edit the other "partitions" (as they are called, basically the other parts of the file system as described above) with root.
Root is basically giving you access to those other parts of the system so that you cant usually access so that you can modify your system
Bootloaders are the things that load the device firmware. If you unlock them, you can write custom things to boot the system up, such as custom recoveries (used to install custom ROMs, back your system up, etc) and custom kernels.
If for now you aren't going to use any custom ROMs then don't worry about Bootloader Unlock. If you want to use custom ROMs then you will need to unlock your bootloader and install a custom recovery.
Custom ROMs really come in two different types: ones that remove extra crap that AT&T/HTC install on there but are still very stock looking and give you a faster stock experience, and also those ROMs that completly deviate from stock and have an entirely different look and feel.
The second category of ROMs also can be broken up into two categories. One of them is AOSP (Android Open Source Project) ROMs that give you the vanilla look of what Ice Cream Sandwich is supposed to look like (look up screenshots of a Galaxy Nexus to see what it looks like). An example of ROMs like this are CM9 and AOKP. They both give you extremely high customizability. There are also ROMs that deviate from the standard type of different ROMs, such as the MIUI ROM. These give your phone a completely different look and feel like the AOSP Roms except they aren't trying to mimic AOSP. Check out screenshots of the MIUI ROM to see what I mean of a different ROM.
Ask any more questions you have.
Click to expand...
Click to collapse
Thank you Rohan and Kleeman.
So I'm gonna keep asking if you don't mind. It seems to me that if I were to keep the stock rom then I would not be getting all I could out of the device. I think cleanrom is for me, but would I be missing out on features by sticking with SenseUI? Could you point me in the direction of a very very very dumbed down way to unlock it, preferably device specific? Simple google searches brought guides but not one I could follow. Oh, and when should I backup and how?

[Q] 100% Original Stock ROM backup before root?

Hi there,
I am new to xda and new to Android hacking.
What I wanna ask is, (I guess it's of most newbies concern as well), can we have a 100% backup of our system (stock ROM)? Obviously, it is important because:
If we perform an official (OTA) update to a new Android version. And we don't like it. It is possible to get back to the old original one which we are used to. (not everybody likes new things, and/or not every new thing is good)
If our phones are having some problems. And we have to give it back to the company for a fix. In most cases they will flash a new ROM for us. If we wanna keep using the old one (explained in #1), we have to keep a copy of it by ourselves.
If we want to try new custom ROMs, we may want to switch it back after trying.
Whenever we do any modifications, it's always better to keep a backup/roll-back point. In case anything goes wrong, we have a safeguard.
For the official warranty issue.
Yup I do see there are some official stock ROMs downloads for some particular phones. But those are not really a backup of our original ROMs. And it's always hard to verify if those downloads are the original official releases. And, if those downloads are 100% stock ROMs, this means some guys out there could make it, so what is the way to do so?
Or, how those mobile phone companies do it in their labs?
I have been doing researches on this topic for a few days. Some posts claim that their methods are "backup stock ROM" or "backup before rooting". But after digging into it, they requires rooting and/or flashing CWM. Here comes a few questions:
Questions
Rooting will in fact changes some files/data of the system. So backup after root is NOT getting the original stock ROM. Is it?
Is there a method to "un-root", so ALL the changes are TOTALLY reverted?
Installing/flashing things like CWM in phone requires rooting, which would make the ROM not original. Is there a way to extract the system backup from a computer externally?
In addition, I have found some related pieces. which could be useful to anyone viewing this post, and might be useful for you to solve this (my) question. :fingers-crossed:
* as I'm a new user, I can't post links directly. Please delete the blank spaces in between.
ht tp://www .modaco .com/topic/351269-backup-original-rom/
In reply #5, user C3C0 raised a method of backing up the original stock ROM without root. But it seems he is flashing CWM and that method is only for ZTE Skate.
adb backup tool of Android SDK
At the first sight i came across this approach, I thought it is the official method to do whole system (ROM) backup (WOW - how nice!). But after studying for a few more posts, I think adb backup can only backup app+app_data, and possibly some system settings only. Am I correct? And also, adb backup is only for ICS (Android 4.0), isn't it?
adb backup usage: ht tp://forum.xda-developers .com/showthread.php?t=1420351
(But mentioned in the bottom of #1 the poster is having some issues on using adb backup. Perhaps there are some bugs and not reliable(?)
One more question on adb backup: Can it backup just one app+app_data, and restore just one app+app_data, without affecting other things? If yes, we don't need to root and don't need Titanium Backup (which requires root) for backup app+app_data. Isn't it?
** In case I have said anything or any terms wrongly in this thread, please DO correct me, for helping me and helping others.
P.S. i am using LG Optimus 3D.
Thanks a lot, wholeheartedly,
midnite_

Backup phone before root
Hello all this is my first post here...woohoo!:fingers-crossed: This forum is amazing as to the amount of information available. I just wish that in looking for what I need to do I did not need to look in so many places. I feel that if I want to root my T-Mobile GS3 that all the information should be in one subsection of the forum, but it is not that simple I guess....lol Anyway any help would be greatly appreciated.
I have a Samsung GS3 with T-Mobile that I want to root. Everyone says to back up the phone before you do it but I am not really seeing how to make a backup before I start. It appears that most of the guides to root just say to backup without telling you how to fo it. Another thing (correct me if I am wrong) I see the nandroid backup that I think is a backup of the phone however it seems to be done after you make changes to the phone and I thought the backup was supposed to be done before you do anything. Is it that there is not a way to make a complete backup with an unrooted phone?
My question is basically the same as the OP here. I have been reading and reading and reading posts here in the forum. There is much information here and much of it is duplicated with slight variances in some of the duplicates. I am not certain as to which rooting method I should use. There seem to be so many choices. As a new person to this forum I will say that you can find just about everything about any phone which is awesome. The hard thing is sifting through the many options to pick one to use for your issue.
I do see that Mr. Robinson has a thread with backups of the original roms. The only thing is that they are default roms that are like an out of the box phone and not my phone with my apps and my settings. That is what I want to backup...My phone with my settings and my apps.
:good: Thank you in advance for any one that can shed some light on this for me and the OP'er

ASharpEdge said:
Hello all this is my first post here...woohoo!:fingers-crossed: This forum is amazing as to the amount of information available. I just wish that in looking for what I need to do I did not need to look in so many places. I feel that if I want to root my T-Mobile GS3 that all the information should be in one subsection of the forum, but it is not that simple I guess....lol Anyway any help would be greatly appreciated.
I have a Samsung GS3 with T-Mobile that I want to root. Everyone says to back up the phone before you do it but I am not really seeing how to make a backup before I start. It appears that most of the guides to root just say to backup without telling you how to fo it. Another thing (correct me if I am wrong) I see the nandroid backup that I think is a backup of the phone however it seems to be done after you make changes to the phone and I thought the backup was supposed to be done before you do anything. Is it that there is not a way to make a complete backup with an unrooted phone?
My question is basically the same as the OP here. I have been reading and reading and reading posts here in the forum. There is much information here and much of it is duplicated with slight variances in some of the duplicates. I am not certain as to which rooting method I should use. There seem to be so many choices. As a new person to this forum I will say that you can find just about everything about any phone which is awesome. The hard thing is sifting through the many options to pick one to use for your issue.
I do see that Mr. Robinson has a thread with backups of the original roms. The only thing is that they are default roms that are like an out of the box phone and not my phone with my apps and my settings. That is what I want to backup...My phone with my settings and my apps.
:good: Thank you in advance for any one that can shed some light on this for me and the OP'er
Click to expand...
Click to collapse
Hi ya,
It's so nice that you are having the same concern as I do.
As far as i know, the approaches of rooting differ from phones to phones. So we may have to find our own specific rooting method in the phone model sub-forums. It won't be hard for your popular S3
I would like to have a look at that Mr. Robinson's thread. If he can backup the stock ROM, those app+app_data wont a big issue (i guess).
cheers,
midnite_

midnite_ said:
Questions
Rooting will in fact changes some files/data of the system. So backup after root is NOT getting the original stock ROM. Is it?
Is there a method to "un-root", so ALL the changes are TOTALLY reverted?
Installing/flashing things like CWM in phone requires rooting, which would make the ROM not original. Is there a way to extract the system backup from a computer externally?
Click to expand...
Click to collapse
Hi midnight, welcome to a new and exciting world of Android and trying new things. First, let me assure you, what you want is NOT something new. People have been doing this type of thing for years. That is flashing and testing roms. As you will learn, it actually becomes quite addictive. We call those folks that get addicted to flashing: Flashaholics or crackflashers, lol
First let me talk about "root". This process consists of unlocking a lower level of the Android system known as the bootloader. Unlocking the bootloader of your device allows you to flash a custom recovery, flashing a custom recovery allows you to flash the Superuser binary and Superuser.apk, This is what allows you to use apps that require "root". The bootloader is not an OS file. So when you are unlocking your bootloader you are not modifying your stock rom. Only when you have flashed the Superuser package have you modified your stock rom. And even that isn't really modifying anything. When you flash the Superuser package, it adds two files to your rom at certain locations of the file system. It adds the Superuser.apk file to system/app and it adds the SU binary to system/bin. Basically you CAN have a totally S-OFF (unlocked) bootloader and still have an entirely stock rom if you want. But the real benifit is flashing a custom recovery like ClockworkMod Recovery and then flash the superuser package.
As far as extracting the stock system, you should try giving adb a go. Do it right now if you like. Ensure you have the android sdk installed and properly set up on your computer and your computer can recognize your phone. Ensure your phone is in debugging mode, connect your phone to your computer, open up a command window, and run this command:
Code:
adb pull \
This command will pull everything off your phone except for data which is where your market or Google Play apps are stored.
Beyond XDA there are aso more resources to learn from. For example, http://www.android.com is a good place to start, and to learn more about adb check out http://developer.android.com/tools/help/adb.html
If you need to learn how to setup the sdk here is the place to learn how: http://developer.android.com/sdk/index.html
I'm sure others will add to this as well which is the good thing about this community.
Welcome to XDA, I hope you have fun learning, and maybe share back someday things you learn along the way.

wildstang83 said:
Hi midnight, welcome to a new and exciting world of Android and trying new things. First, let me assure you, what you want is NOT something new. People have been doing this type of thing for years. That is flashing and testing roms. As you will learn, it actually becomes quite addictive. We call those folks that get addicted to flashing: Flashaholics or crackflashers, lol
First let me talk about "root". This process consists of unlocking a lower level of the Android system known as the bootloader. Unlocking the bootloader of your device allows you to flash a custom recovery, flashing a custom recovery allows you to flash the Superuser binary and Superuser.apk, This is what allows you to use apps that require "root". The bootloader is not an OS file. So when you are unlocking your bootloader you are not modifying your stock rom. Only when you have flashed the Superuser package have you modified your stock rom. And even that isn't really modifying anything. When you flash the Superuser package, it adds two files to your rom at certain locations of the file system. It adds the Superuser.apk file to system/app and it adds the SU binary to system/bin. Basically you CAN have a totally S-OFF (unlocked) bootloader and still have an entirely stock rom if you want. But the real benifit is flashing a custom recovery like ClockworkMod Recovery and then flash the superuser package.
As far as extracting the stock system, you should try giving adb a go. Do it right now if you like. Ensure you have the android sdk installed and properly set up on your computer and your computer can recognize your phone. Ensure your phone is in debugging mode, connect your phone to your computer, open up a command window, and run this command:
Code:
adb pull \
This command will pull everything off your phone except for data which is where your market or Google Play apps are stored.
Beyond XDA there are aso more resources to learn from. For example, ht tp://www .android .com is a good place to start, and to learn more about adb check out ht tp://developer .android .com/tools/help/adb.html
If you need to learn how to setup the sdk here is the place to learn how: ht tp://developer .android .com/sdk/index.html
I'm sure others will add to this as well which is the good thing about this community.
Welcome to XDA, I hope you have fun learning, and maybe share back someday things you learn along the way.
Click to expand...
Click to collapse
Hi Wildstang,
Thanks very much for your warm welcome and very informative reply. So are you a Flashaholics or Crackflashers yet?
As I am a newbie, please forgive me if I am asking dumb questions.
As far as I understand,
The steps of root is
1. Unlock the bootloader
2. Flash Superuser binary & Superuser.apk
** does "flash a custom recovery" means "flash Superuser binary & Superuser.apk"?
"Flash Superuser binary & Superuser.apk" is just "add SU binary to system/bin" and "add Superuser.apk to system/app". Then why not just copy them into place?
I just found on the web that "flashing" means replacing the OS of the phone with a new ROM. Would that still keeping the stock ROM?
To have a backup of the original stock ROM, can I
1. Unlock the bootloader
2. Flash Superuser binary & Superuser.apk
3. Perform the backup
And later, after I have flashed a new ROM, or whatever I do, as long as I didn't brick it, when I want to rollback my phone to its original, I can
1. Restore the backup
2. Delete "SU binary in system/bin" and "Superuser.apk in system/app"
3. re-lock the bootloader
Is this correct?
I don't mean to challenge you. But does adb pull \ really backup the system, or just all the files?
Thanks very much again!
midnite_

Hey midnite_,
I am a newbie too and have a lot of blank spots in my understanding of what we can do with android. I also came here with same question. I found how to root, this isn't a secret. Like you, I want to know how do I fix it if I break it.
So, with regards to your questions.
1. Unlock the bootloader
Not clear on this one, as not every tutorial even mentions this part. My feeling is that this might be specific to some phones, like HTC.
2. Flash Custom Recovery (such as AmonRa, CWR, TWRP...)
Recovery is an intermediate stage of phone booting process after bootloader but before OS.
It is there to allow OTA (Over the air) updates. During those, the OS is halted and replaced with a newer one.
What this means for us is that the recovery is capable of replacing OS (ROM - are these terms interchangeable?).
Recovery is the same as hidden partition on windows, that is sometimes present on a PC. It has a limited interface.
It can replace one OS image with another. It probably checks the checksum and creates the new one after the update. It is probably the gatekeeper.
Stock recovery will not replace OS with an image from SD card or from PC through USB. Only OTA.
This is the reason for flashing the custom (hacked) recovery on.
Custom recovery is made to allow additional options, such as allowing image sources such as PC or SD card, and also a ROM backup (write OS image to PC).
3. Flash update file using "upgrade from SD card" function of custom recovery now in place.
In this step, the Superuser.apk and bin files are placed. Stock recovery will not let us do that.
Also, I think the reason we can't just use ADB to "copy" superuser package to phone is because the system is either running or exists as an image (compressed?), and is probably protective of its modification. (So, likely the superuser package also replaces the checksum that the OS uses to check if it has been compromised?) Yes, this modifies your rom.
I assume that unrooting could be done after this by updating again with a file that removes superuser package and that would make your rom stock again.
4 OR flash custom ROM, which usually includes superuser package. Of course using custom rom means you no longer have stock rom.
To have a backup of original ROM, you would :
1 Unlock bootloader,
2 Flash (install) custom recovery
3 superuser doesn't matter here
4 Use custom recovery function to back up your stock ROM.
I want to know the answers to the rest of your questions as well as some clarifications to mine.
Personally, I am looking for a way to backup the stock recovery as well.
I know there are some people asking about this. The procedure appears to be as follows:
(pieced together so don't take it as a tutorial)
1 Unlock bootloader (again, unclear on this. Also some mention S-OFF and others don't)
2 With USB debugging allowed (meaning connect as device requiring a driver), Connect to a PC with ABD, and a driver installed.
3 From ADB, issue a command "adb boot recoveryimage.name" instead of the usual "adb flash recoveryimage.name".
This will make the phone boot into a custom recovery image that is residing on PC, without first writing it to the phone.
4 Unclear how, but make that custom recovery now being live to back up stock rom to pc.
5 Unclear how, but make that custom recovery now being live to flash either root or custom rom to the phone.
6 Disconnect, reboot the phone. Once in OS, use root privileges to mount recovery partition ? (this makes it visible as drive)
7 Don't know how, but use root privileges to back up now visible stock recovery partition to PC as image.
( This should give you two out of three original parts.)
Keep in mind that even if my peace-by-peace "know-how" ever works, there is at least one clearly faulty step:
The back up of the original state of the boot loader has been never made. I do not know if it is easily can be toggled back and forth from lock to unlock and back without leaving any trace. Also, like yourself, I probably don't quite understand what am I talking about, but I have tried to make as much sense of what I have read here and there.
This is my first smart phone, and my experience with linux is limited to building a minecraft server on MineOS, which was pre-made so that not much was required to make it run. I have "mounted" a partition for the first time last week, trying to break Win7recovery, booting it with Knoppix. This is why I think this is probably will come in play here too, as the recovery partition on W7 was hidden. Until then I didn't understand what mounting means, as windows always does it for you. So, take everything I say with a bunch of salt.
Please, let me know too, if you find out more. I want to flash the hell out of my Prism, but I want to be smart about it.

bump... midnite_ r u still around?

Hi Descent2,
Yes i am still around but i am busy with other stuffs at this moment. Thanks very much for your reply. You have studied a lot and you really did good summarisations. Very informative and I learnt a lot from it. Hope some of the masters or experienced ones would come by and bring us out of the mist
cheers,
midnite_
Descent2 said:
Hey midnite_,
I am a newbie too and have a lot of blank spots in my understanding of what we can do with android. I also came here with same question. I found how to root, this isn't a secret. Like you, I want to know how do I fix it if I break it.
So, with regards to your questions.
1. Unlock the bootloader
Not clear on this one, as not every tutorial even mentions this part. My feeling is that this might be specific to some phones, like HTC.
2. Flash Custom Recovery (such as AmonRa, CWR, TWRP...)
Recovery is an intermediate stage of phone booting process after bootloader but before OS.
It is there to allow OTA (Over the air) updates. During those, the OS is halted and replaced with a newer one.
What this means for us is that the recovery is capable of replacing OS (ROM - are these terms interchangeable?).
Recovery is the same as hidden partition on windows, that is sometimes present on a PC. It has a limited interface.
It can replace one OS image with another. It probably checks the checksum and creates the new one after the update. It is probably the gatekeeper.
Stock recovery will not replace OS with an image from SD card or from PC through USB. Only OTA.
This is the reason for flashing the custom (hacked) recovery on.
Custom recovery is made to allow additional options, such as allowing image sources such as PC or SD card, and also a ROM backup (write OS image to PC).
3. Flash update file using "upgrade from SD card" function of custom recovery now in place.
In this step, the Superuser.apk and bin files are placed. Stock recovery will not let us do that.
Also, I think the reason we can't just use ADB to "copy" superuser package to phone is because the system is either running or exists as an image (compressed?), and is probably protective of its modification. (So, likely the superuser package also replaces the checksum that the OS uses to check if it has been compromised?) Yes, this modifies your rom.
I assume that unrooting could be done after this by updating again with a file that removes superuser package and that would make your rom stock again.
4 OR flash custom ROM, which usually includes superuser package. Of course using custom rom means you no longer have stock rom.
To have a backup of original ROM, you would :
1 Unlock bootloader,
2 Flash (install) custom recovery
3 superuser doesn't matter here
4 Use custom recovery function to back up your stock ROM.
I want to know the answers to the rest of your questions as well as some clarifications to mine.
Personally, I am looking for a way to backup the stock recovery as well.
I know there are some people asking about this. The procedure appears to be as follows:
(pieced together so don't take it as a tutorial)
1 Unlock bootloader (again, unclear on this. Also some mention S-OFF and others don't)
2 With USB debugging allowed (meaning connect as device requiring a driver), Connect to a PC with ABD, and a driver installed.
3 From ADB, issue a command "adb boot recoveryimage.name" instead of the usual "adb flash recoveryimage.name".
This will make the phone boot into a custom recovery image that is residing on PC, without first writing it to the phone.
4 Unclear how, but make that custom recovery now being live to back up stock rom to pc.
5 Unclear how, but make that custom recovery now being live to flash either root or custom rom to the phone.
6 Disconnect, reboot the phone. Once in OS, use root privileges to mount recovery partition ? (this makes it visible as drive)
7 Don't know how, but use root privileges to back up now visible stock recovery partition to PC as image.
( This should give you two out of three original parts.)
Keep in mind that even if my peace-by-peace "know-how" ever works, there is at least one clearly faulty step:
The back up of the original state of the boot loader has been never made. I do not know if it is easily can be toggled back and forth from lock to unlock and back without leaving any trace. Also, like yourself, I probably don't quite understand what am I talking about, but I have tried to make as much sense of what I have read here and there.
This is my first smart phone, and my experience with linux is limited to building a minecraft server on MineOS, which was pre-made so that not much was required to make it run. I have "mounted" a partition for the first time last week, trying to break Win7recovery, booting it with Knoppix. This is why I think this is probably will come in play here too, as the recovery partition on W7 was hidden. Until then I didn't understand what mounting means, as windows always does it for you. So, take everything I say with a bunch of salt.
Please, let me know too, if you find out more. I want to flash the hell out of my Prism, but I want to be smart about it.
Click to expand...
Click to collapse

check here
All your answers can be found here: [REF] [GUIDE] Welcome to your device, the Galaxy S III. For more XDA related issues check here: [GUIDE] - XDA New User Guide - Getting started on XDA
Good Luck!
mf2112
XDA Moderator
ASharpEdge said:
Hello all this is my first post here...woohoo!:fingers-crossed: This forum is amazing as to the amount of information available. I just wish that in looking for what I need to do I did not need to look in so many places. I feel that if I want to root my T-Mobile GS3 that all the information should be in one subsection of the forum, but it is not that simple I guess....lol Anyway any help would be greatly appreciated.
I have a Samsung GS3 with T-Mobile that I want to root. Everyone says to back up the phone before you do it but I am not really seeing how to make a backup before I start. It appears that most of the guides to root just say to backup without telling you how to fo it. Another thing (correct me if I am wrong) I see the nandroid backup that I think is a backup of the phone however it seems to be done after you make changes to the phone and I thought the backup was supposed to be done before you do anything. Is it that there is not a way to make a complete backup with an unrooted phone?
My question is basically the same as the OP here. I have been reading and reading and reading posts here in the forum. There is much information here and much of it is duplicated with slight variances in some of the duplicates. I am not certain as to which rooting method I should use. There seem to be so many choices. As a new person to this forum I will say that you can find just about everything about any phone which is awesome. The hard thing is sifting through the many options to pick one to use for your issue.
I do see that Mr. Robinson has a thread with backups of the original roms. The only thing is that they are default roms that are like an out of the box phone and not my phone with my apps and my settings. That is what I want to backup...My phone with my settings and my apps.
:good: Thank you in advance for any one that can shed some light on this for me and the OP'er
Click to expand...
Click to collapse

Thanks mf2112. But those resources are seem only for GS3. And it seems it is not teaching us to backup our stock ROMs, it provides stock ROMs for us to download instead. Is there a general way to backup our stock ROMs?
Thanks,
midnite_
mf2112 said:
All your answers can be found here: [REF] [GUIDE] Welcome to your device, the Galaxy S III. For more XDA related issues check here: [GUIDE] - XDA New User Guide - Getting started on XDA
Good Luck!
mf2112
XDA Moderator
Click to expand...
Click to collapse

You must unlock your bootloader then flash a custom recovery. You will then use that custom recovery to make a backup of your rom. That backup will be stored on your sd card.
Now, I have tried to help you and so have a couple other folks. You expect us to just give you answers step by step. I am sorry but this is simply not how XDA works. XDA is set up in a way which makes it for any users to find quickly what they want to know. Use the search feature on the site and you will find many answers. I tell you to go do your own research now and be proud of what you learn on your own. And if you cannot, please do not try to modify your phone further, you may just brick it if you aren't careful.

midnite_ said:
Thanks mf2112. But those resources are seem only for GS3. And it seems it is not teaching us to backup our stock ROMs, it provides stock ROMs for us to download instead. Is there a general way to backup our stock ROMs?
Thanks,
midnite_
Click to expand...
Click to collapse
I put in the GS3 links since the OP was using that phone. Every phone will be different so I don't think a general way or guide would be practical.
Sent from my HTC Sensation 4G using xda premium

zte z990g (Rooted) Needing general information about su rights & commands

:fingers-crossed: ok so I've FINALLY been able to root my net10 zte merit z990g using a simple .zip install suggestr
d to me by a friend. (I know I took the easy way)
Since rooting it, I've went from the factory 2.3.5 stock and installed an ICS based verioson, which seems to be running great minor exception internet browser crashed & installation of opera web browser seemed to work smoothly on.
Since rooting it, I've bought another phone (Lg Optimus Dynamic) and activated it so that I may study the rooted device futher.
My questions are as follows:
1. Could someone possibly tell me the complete list of su commands are for my zte merit z990g and how to enter them? (Id like to use my su rights to explore the device componets, network (since its deactivated and has no working sim) and bootloader files/settings, etc for my own educational purposes to POSSIBLY futher my knowledge of the android based device. (quite new still yet to the whole technology mods, hacks & tricks) as well as explaining the whole shell thing?
2. Bootloader: how do I know if its unlocked, and if it isnt then what do I do to unlock it?
3. Is it possibe for one flash or install another custom rom or kernel to unlock a device? As stated I've went from gingerbread 2.3.5 to ICS . I first installed a .zip of TouchNav then a DexMeritRoot. zip, shortly after that I installed the ICS.zip. Though it seems to be stable, the battery drains extremly quick and there still is hardly any memory. Any ideas on a tweak setting to optimize
these issues?
4. Does anyone have another suggestion for a rom that I could try?
I ask advice as I know there are possibly other users out in the xda forum who are waaay more experienced with this device and could possibly share their wisdom with an inexperienced noob thats looking to expand her knowledge. So far, whats been done since the root, Ive enjoyed it (I use it to connect via wifi only to connect with friends and play online games when not tinkering with trying to enhance it to full potential) Ive just grown sightly accustomed to the udated zip of ICS and would like to try something new.
So, there it is guys, is there anyone who would like to offer their advice on the subjects? Id love to get some feedback.
Thanks in advance!!
ok, so I now know that I can install a .zip custom rom contaning no kernel since the merit is known to have issues rebooting and its linked to an "unstable kernel....but this confuses me. Doesnt the android based Zte Merit z990g have to have a kernel to function??
And I've come across the Stayboggy blue steel custom rom but Im apperhensive due to conflicting replies in the forum area I located it in. Dont get me wrong, he has some wonderful ROMS and software that Ive researched online. I just get a little nervous upon installing anything (Fear of drastic noob brick)
I've yet to find any real answers in my researches just yet, however I will continue to explore the device.
I guess upon reading Ive realized the bootloader thing has pretty much been addressed all on its own. Im guessing I wouldnt of been able to install the icecream Scamwhich custom rom, version of the ICS, would I??
Im still trying to find out the whole su commands, how to create shell etc so thats what Im tryin to grasp now.
Still would appreciate any opinions, and advice from others. on anything in the thread...

Okay so just to clear a few things up.
The bootloader for the merit is already unlocked due to Touch Nav being able to be flashed and replace the Stock Recovery with the update.zip. The bootloader would be the first menu that you "tampered" with in order to flash a permanent recovery that would allow you to use Touch Nav or ClockWorkMod recovery and then install ROMS. In my experience, I haven't ever come across a ROM being "pre-unlocked". This is because the way to unlock most phones is using the IMEI and being that is different in every phone it just can't be done until after the ROM is flashed. Some phones have apps for them like the Galaxy line and others are harder to unlock.
As far as running shell commands, you'll need to do that through ADB or a Terminal App. That's really the manual way of performing tasks on your device like pushing or pulling files with read/write privileges aka SuperUser. So it depends on what all is you want to try to learn to do manually. Like pulling system apps from your phone, replacing boot animations zip files, or what have you. In ADB, if your device is connected and have ADB debugging checked off you can try the command: "Adb devices". Minus the parentheses to check if can run other commands. "Adb help" will show you a quick command paragraph. You should still Google ADB commands or Android Terminal commands to explore further. Since your phone doesn't have a service, I recommend you trying a voip app to make calls through wifi just as neat thing to mess around with. Well that's just a bit of what I've gathered in my short time here in Xda Developers. If you like the challenge of research in the android/Linux world, this is really exciting way to start.
Oh and as far as the Ice scam Sandwich ROM, it is still Gingerbread. It's only themed system ui to look like ICS. There isn't an ICS based rom out for the ZTE Merit. Even SpeedFreak2.0 is Gingerbread. The low system storage issue was greatly addressed in SpeedFreak2.0 by creating an sd-ext3 partition on the micro sd. I had to create that in either TouchNav or ClockWorkMod and format. So backup all your data prior to doing this and installing the New Rom. I now have 4gb free of system storage and the Merit clocking at 864mhz. Pay close attention as I believe you install that ROM by restoring a backup file NOT flashing the. zip.
Now for the unstable kernel, I would recommend you download the 1.0 kernel I mentioned in another thread. The kernel comes in the ROM and it wouldn't run "without a kernel". Again, this would be after installing SpeedFreak2.0 by backup restore using ClockWorkMod that I believe is installed by flashing an update.zip that reboots TouchNav and let's you use a Temporary ClockWorkMod from which to backup(install) SpeedFreak2.0. You extract the SpeedFreak2.0. zip and get the backup file from there. I hope I made sense. I'm up late and I'll come back and check on you. Feel free to PM me if you find yourself lost.
Sent from my PantechP9090 using xda premium

Database Info

welcome