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[Q] Root and Custom ROMs - Where to start?

I'm not the person that buys a new phone every 6 months. I'm probably going to use my Nexus S for 2 years or more. And because of that, I want it optimized so that I won't get jealous at those multi-core phones.
I can optimize the OS by just downloading something like Launcher Pro, but I want more. I like applications like Adfree and ShootMe, and VooDoo sound also looks very nice. But, I want more! Custom ROMs increase the speed, and then I could always overclock. So Cyanogen Mod 7 is also on my list.
But the problem is, I don't know where to start. There are SO MANY options in the world of Android. Of course, with some Googling I can find the best Custom ROM (CM7), but the internet isnt very clear about it all. I am an average user, so I don't want to much risks. I also don't understand 'geek language' (you know what I mean ), so these forums don't help me much either.
I know how to root (there are tons of youtube videos), and I can probably find a youtube video for installing CM7 as well, but like I said, I don't know where to start. Can somebody give me a push in the right direction? I hate to ask, but I couldn't find something like a noob guide...

Go to the android development section for nexus S and all topics are covered

willcpfc said:
Go to the android development section for nexus S and all topics are covered
Click to expand...
Click to collapse
Hmm I see you can root with or without fastboot oem unlock. I know fastboot oem unlock wipes all data, but if you do it when you get your phone, that isnt a problem. Is there any other (dis)advantage?
It seems there are a lot of methods to root. What is the best one (not the fastest)? I like the one from AllGamer, but it says 'via Clockwork Mod'. I don't know what that is, or what it does. I know I look like an idiot now, but I really can't find good explanations on the internet. Everyone supposes that you know a lot of stuff already.

Androyed said:
Hmm I see you can root with or without fastboot oem unlock. I know fastboot oem unlock wipes all data, but if you do it when you get your phone, that isnt a problem. Is there any other (dis)advantage?
It seems there are a lot of methods to root. What is the best one (not the fastest)? I like the one from AllGamer, but it says 'via Clockwork Mod'. I don't know what that is, or what it does. I know I look like an idiot now, but I really can't find good explanations on the internet. Everyone supposes that you know a lot of stuff already.
Click to expand...
Click to collapse
All the guides get you to the same result: root and a custom recovery with the exception of distortedloop's guide which keeps the bootloader locked and avoids an initial wipe. If you read through each thread, you'll realize that they all do the same thing. Some just helps you avoid terminal work, which is as easy as retyping what you see. Just pick one and follow all the steps. No reported advantages or disadvantages to unlocking the bootloader other than the wipe you are aware of.
Sent from my Nexus S using XDA App

Go to theunlockr.com It has alot of beginner friendly videos.
http://theunlockr.com/category/howto/android_how_tos/nexus-s-how-tos/
Sent from my Nexus S using XDA App

Thanks, both of you!
Unlocking the bootloader is needed for flashing ROMs, right? If that's true, I think I'll unlock it right away when I don't have any data/apps installed. The only thing that will suck is the ugly padlock sign when you start your phone, but who starts his phone anway...
By the way, changes a unlocked bootloader anything else except for a slightly different boot animation?
Some other questions: will you get OTA updates from Google when you have root enabled? And what if you use a Custom ROM? And what if you use a Custom Kernel? And what if you use Clockworkmod (that is a custom recovery, right?)?
And where do you need a custom kernel for? Is it only to overclock your device? I saw it is also necessary for VooDoo sound, which I like very much. Same question about Clockworkmod: if it's a custom recovery, what does it do? Is it for back-up/rom switching?

Androyed said:
Thanks, both of you!
Unlocking the bootloader is needed for flashing ROMs, right? If that's true, I think I'll unlock it right away when I don't have any data/apps installed. The only thing that will suck is the ugly padlock sign when you start your phone, but who starts his phone anway...
By the way, changes a unlocked bootloader anything else except for a slightly different boot animation?
Some other questions: will you get OTA updates from Google when you have root enabled? And what if you use a Custom ROM? And what if you use a Custom Kernel? And what if you use Clockworkmod (that is a custom recovery, right?)?
And where do you need a custom kernel for? Is it only to overclock your device? I saw it is also necessary for VooDoo sound, which I like very much. Same question about Clockworkmod: if it's a custom recovery, what does it do? Is it for back-up/rom switching?
Click to expand...
Click to collapse
Unlocking the bootloader is not required for flashing roms. On previous devices, it was necessary but we have a method in distortedloop's guide which can work around that.
You can still get OTA updates with root, however updating will cause you to lose root. Custom roms usually have a script to disable OTA updates. Kernels and custom recovery will not affect OTA updates.
Custom kernels are "custom" in itself and often offer more features such as the ability to overclock, file system hacks, as well as sound/graphic hacks which may not be included in a previous developer's custom rom. It leaves room for the user to pick what is suitable for him/her.
Custom recoveries are recoveries with extended features. These features may include the ability to backup/restore, wipe device between ROM builds, and more. Its main feature which I enjoy the most, is the ability to navigate between folders of your storage and choose a ZIP file to flash. Standard recovery requires anything flashed to be in the root of your storage as well as named "update.zip". Custom recoveries eliminates this requirement and lets you keep the name of your zip files as well as organize them in folders. There are more features, but that's up to you to discover and see what you'll actually use.

And again, thanks!
After reading the post above and an awesome explanation on a dutch forum, I now know what all those 'custom' things do.
First of all, I'm interested in root. There are some very useful applications that can only be used with root. After that, I'm going to flash a kernel (not overclock it), probably Netarchy's, for some speed improvement and most important of all, voodoo sound improvement! The last looks very promising.
If I'll get bored after that, (I probably tried out dozens of homescreen replacements and their themes by then), I'm going to flash a Custom ROM, and experiment with custom ROM themes. This is probably going to be Cyanogen Mod, but I'm going to wait till a stable release comes out for the Nexus S. If I'm still bored (we are probably talking about 1.5 years ahead), I'm going to overclock for optimal performance...
This is why I love Android. Why would you buy a new device every couple of months? There is so much to tweak! When I tried to find some information about flashing ROMs, I sure have learned how many possibilities Android has. It isn't easy for the average user, but if you get something awesome like voodoo sound in return, it is defenitely worth it!

Sorry, I got still two questions left:
Custom ROMs don't change anything from the outside, right? They are only deodexed? Or is there a difference between, let's say, MoDaCo's ROM and CM7, from the outside?
I heard some Custom ROMs have certain themes, but I suppose you could just as easy install the stock Gingerbread theme when for example MoDaCo ships with a different theme. Custom ROMs support themes after all.
Also, what is the difference between a theme from a homescreen replacement and a theme from a Custom ROM? Themes from Custom ROMs can change apps, because it is a deodexed ROM, so themes will probably also change the looks of the dialer for example. And themes from homescreen replacements will only change the homescreen. But will a theme from a homescreen replacement also change the notificationbar and the icons? Or do you have to install a Custom Rom for that?
Thanks in advance!

Tips and Help for a Beginner please?

Hey guys, I literally just got my Samsung Galaxy S a few days ago, and I never realized how good Android really was until stepping away from iOS - now, I used to jailbreak my iPhone, and I've heard that I can root/lagfix my Galaxy S.
I'm REALLY stuck at what to do, there's threads on how to do it on here, I fully understand that but most of them are completely outdated and I'm not sure whether to trust it. I'm alright with ROM's, I'm not entirely interested in Custom ROM's as per say, but I'm interested in rooting and getting rid of the lag via the Voodoo Lag Fix.
I got as far as downloading z4root, and putting it on my phone ready to install, but I thought to myself, I don't have a clue what I'm doing after I permanently root it. I came to ask some questions.
Why should I root my phone?
Voodoo Lag Fix, it's not on the Market anymore, where would I get that from and install it for my current version?
Custom ROM's are they safe and what is the advantage of doing so?
I'm in the UK and I know that Samsung are releasing 2.3 Gingerbread onto all Galaxy S devices by the end of March, so I'm not sure if it's worth waiting for that?
Any tips, or how to suggestions would be much appreciated!
Many Thanks in advance.

Anybody at all? =/

There are already loads of threads on the benefits of root vs no root, use the search function.
The voodoo lagfix is now a complete custom kernel.
It is a really good kernel and i can't say anything negative about it.
Rooting is not permanent either, it can be undone.
The advantage of custom roms is total customisation.
New versions of android are usually available as custom roms alot earlier as the official rom releases from samsung.
You could instal just a new kernel (like voodoo's) which will increase performance, or a whole new rom if you find something you like. Just take a look at the development forums. Roms from the kitchen are nice, or darkys rom.
My suggestion would be to read this and flash voodoo's kernel.
After you have done that you have increased performance, can easily get root through a market app and also you will have clockworkmod recovery (CWM).
CWM is basicly needed to get custom roms, or change themes etc.
You would basicly be good to go for anything
Maybe also read some of the threads here and make sure your 3Button downloadmode is working.

Making sure I understand all this rooting stuff

Hi, I am waiting for my HTC Sensation to arrive from eBay. New to android and have been reading about rooting. Just want to make sure I am getting this clear:
So, to root, I'll need to to the S-off thing with revolution, then clockwork recovery, then SU to actually root it right?
I am not sure whether I need to root it, but I am interested in unlocking it for SIM and I read there's a way to do it if the phone is rooted. Also, I probably don't need some of the T-mobile apps and want to delete it. However, do I have necessarily have to flash a custom ROM after I rooted it? Can I just use what came with the HTC?
However, if I do this, I guess I can't update through HTC/T-mobile anymore right? So I'll have to flash some ROM, but does it have some modify ROM, or can I use the ROM that's official from HTC?
Can someone please correct me if I misunderstood the process? And also, can I reverse all this if I decide I just want to use it the way it was shipped except simunlocked, and be able to update newer version of the OS from HTC.
Thanks

Sensation rooting
I was just like you about a month and half ago. im new to android aslo but i'll help you. first- your right about using the revolutionary method and installing clockwork and super user. as for unlocking it for a SIM you might need super cid check this out http://forum.xda-developers.com/showthread.php?t=1192300
to remove some tmobile apps use titanium backup (it's in the market)
As for roms im using stock but it's rooted. but before you root please update to 2.3.4 because it really improve your phone but yes you would have to flash update roms after you root. but you can find the official one's here if you look for them as soon as they come out.

pretty much yes to your questions...even if you root you can stay with your stock rom and just use titanium backup to delete all the junk u dont want. Also, even if you cant get updates officially, devs here are nice enuf to post the newest stock roms for you to flash so dont worry. so i suggest you read these three threads to start off and have fun (just read directions very carefully)
http://forum.xda-developers.com/showthread.php?t=1192300
http://forum.xda-developers.com/showthread.php?t=1137311
http://forum.xda-developers.com/showthread.php?t=1232107
edit: ah, i guess someone else was replying too

darryll4sh0 said:
I was just like you about a month and half ago. im new to android aslo but i'll help you. first- your right about using the revolutionary method and installing clockwork and super user. as for unlocking it for a SIM you might need super cid check this out http://forum.xda-developers.com/showthread.php?t=1192300
to remove some tmobile apps use titanium backup (it's in the market)
As for roms im using stock but it's rooted. but before you root please update to 2.3.4 because it really improve your phone but yes you would have to flash update roms after you root. but you can find the official one's here if you look for them as soon as they come out.
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Click to collapse
Thanks for the quick reply. So I can only remove some t-mobile apps if it's rooted right? I was thinking of updating to the newest version before considering rooting. I think I will be kinda in the same situation as you....so when you say stock rooted rom...it's basically the same ROM as what t-mobile has with SENSE etc...but can be apply to a rooted phone without losing root right?
Finally, since you're not using any custom ROM and stuff... do u find it worthwhile rooting? what other advantage have you notice if you're using the stock ROM?
Thanks again!

rooting sensation
My rom is the same one that comes when you first get the phone. the only expectation is that it's updated to 2.3.4 instead of 2.3.3 and that it's rooted. When you root imagine like it's a window's pc and instead of using the guest account where stuff is limited, your now able to use the administrator account which lets you do anything.
As for advantages, i wanted to improve it's speed and battery life. the update helps but you'll find out that tmobile has alot of apps running in the background which slows it down and uses more battery and they also included useless app or two of the same kind of app. Right now im looking at other roms because im kinda tired of sense but i wish i could keep it's widgets.

darryll4sh0 said:
My rom is the same one that comes when you first get the phone. the only expectation is that it's updated to 2.3.4 instead of 2.3.3 and that it's rooted. When you root imagine like it's a window's pc and instead of using the guest account where stuff is limited, your now able to use the administrator account which lets you do anything.
As for advantages, i wanted to improve it's speed and battery life. the update helps but you'll find out that tmobile has alot of apps running in the background which slows it down and uses more battery and they also included useless app or two of the same kind of app. Right now im looking at other roms because im kinda tired of sense but i wish i could keep it's widgets.
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Click to collapse
Great. I think I'll just stick with the 2.3.4 firmware for now before considering flashing any custom ROMs etc.
So just so I am clear, I should update the unrooted phone to 2.3.4 when I get it. then I can perform the S-off, clockwork, superuser to get it rooted and just leave it as it is and use the existing ROM as it came with the phone. Until I need to update to a higher version, I will then flash a rooted version of whatever t-mobile came out with from here. Is that the deal?
Finally, what's superCID? Do I need that?
Thanks again.. you guys been a great help! I can't wait to play around with this when I get the phone this weekend

Rooting
Yep your correct....
As for super CID is something like a carrier unlock. This has something to do with updates i think. but by adding this you can flash any carrier's rom onto your phone. for example vodafone and orange are both 2 different europe phone companies and they both include different apps on their roms just like tmobile give there special apps. With super-CID you can put anyone of those carries rom on you phone regardless if it's a europe, usa, or asia sensation. but you don't need- i haven't put it on either.

[q] does sgii skyrocket have unlocked bootloader??

Alright, well today I finally decided to make the switch from the Atrix to a Skyrocket. I heavily modded the atrix and I'm used to having absolutely no freedom with my phone, so I have to hack my way through everything. With a bit or trial and error, I succeded. Anyway, to avoid soft-bricking my phone in less than 12 hours, I want to know everything I need to do in order to flash ROMs, kernals, and all that other good stuff. So far, all I've done s root and flash CWM. Am I done?
Thanks. Oh and before I leave, has anyone tested out that 1.89ghz OC kernal?

Hello fellow atrix user. I to came from the atrix . But have had samsung galaxy then sgs2 now sgs2 skyrocket. You rooted and installed cwm so your done. You can flash roms and kernels with cwm totally different world.then that pita atrix. For now best bet is to stay on stock rooted. People were havong some problems with alien rom. I have used the oc kernel. Up to 1.83ghz and got over 4200 quadrant with that ( not that quadrant really matters) but my phone did heat up alot while over clocking, and anything over 1.83 i got instant shutdown so i flashed stock rooted back. And im happy with it. And with sammy odin is your friend if u run into problems keep this thread handy it has easy to use directions how to odin back to stock and how to use odin to flash the tar and fix a soft brick http://forum.xda-developers.com/showthread.php?t=1342348

Perfect! thats exactly what I needed... a heck of a lot easier to do too! And i've already done my research for the crash course I take it the TAR/ODIN stuff is the Skyrockets equivalent of RSD Lite? Looks easy (enough) to use and I have everything I need incase something bad happens. Anyway thanks again for the help! I guess I'll wait it out before flashing alien. Oh and one more question (yeah I do that a lot), whenever I flashed themes on my atrix, it NEVER worked, but I never found out what was wrong with it. Is there anything special I need to do aside from rooting/CWM? Or once I have that, I have the power to do ANYTHING posted in the dev section (that applies to my phone model and all that)?

Nothing special you need to do after root and recovery. But some themes cause problems on some roms as im sure you know. Some work some dont .

[Q] Where to start?

I got myself a brand new nexus S and Ive got some questions
Im debating on using a custom ROM or just go stock ICS.
A good reason why people use custom ROMs is because of better battery because of the kernel. so would it be possible to flash a better kernel on stock ICS?
If I am going with Custom,
whats the most Recommended:
way of rooting(1 click or manual, and why)
Custom recovery
best kernel
best ROM
is it possible to save a custom UI(so you could do dual booting through custom UI u made)

WoolyMarmot said:
I got myself a brand new nexus S and Ive got some questions
Im debating on using a custom ROM or just go stock ICS.
A good reason why people use custom ROMs is because of better battery because of the kernel. so would it be possible to flash a better kernel on stock ICS?
If I am going with Custom,
whats the most Recommended:
way of rooting(1 click or manual, and why)
Custom recovery
best kernel
best ROM
is it possible to save a custom UI(so you could do dual booting through custom UI u made)
Click to expand...
Click to collapse
You can flash a stock kernel on stock ICS, this is what i have done in the past and it was great. However I will note that the new ROM modifications that increase usable System RAM make a very noticeable difference with no negatives as far as i see. You also get things like notification power toggles, more lockscreen options and so on with a custom ROM.
Anyway, to answer your questions:
1) Best way of rooting: We have a Nexus device so i would not waste time using one clicks. Unlock the bootloader using fastboot, flash a custom recovery and then either flash superuser.zip or a custom ROM. This allows the most versatility when changing ROMs, mainly if you ever decide to flash or restore a stock ROM. The Nexus S allows you to lock the bootloader if you ever need to so warranty issues based on unlocked bootloaders are minimal.
2) ClockWorkMod is generally the most favorable, compatible and least buggy of the lot. TWRP, although good, has a couple of hidden bugs in it and is no longer being developed. Further, CWM now gives you the option between a Touch based recovery and a button based one. This is up to you as they're both essentially the same, but i still prefer the buttons.
3) There is no best kernel, just the best for you. Find the features you want in a kernel first, and then pick a handful and try them all. If you are using a ROM with fixes for the extra RAM (CM9, Slim, etc), you will need a kernel that supports this.
4) Same with kernels. CyanogenMod is generally a good choice. Although on the surface it looks just like stock it is heavily modified. Others have only minor modifications and additions, practically a stock experience with a couple of extra features. Pick a handful with features you want and try each for a couple of days. Feel free to switch kernels from the one that comes with each ROM.
Custom UI? If you mean bootloader or something like that, not really. There have been one or two devs who have tried to make this possible (not specific to the Nexus S) but i don't think their (working?) attempts have taken off. Don't get your hopes up here though.

Harbb said:
1) Best way of rooting: We have a Nexus device so i would not waste time using one clicks. Unlock the bootloader using fastboot, flash a custom recovery and then either flash superuser.zip or a custom ROM. This allows the most versatility when changing ROMs, mainly if you ever decide to flash or restore a stock ROM. The Nexus S allows you to lock the bootloader if you ever need to so warranty issues based on unlocked bootloaders are minimal.
4) Same with kernels. CyanogenMod is generally a good choice. Although on the surface it looks just like stock it is heavily modified. Others have only minor modifications and additions, practically a stock experience with a couple of extra features. Pick a handful with features you want and try each for a couple of days. Feel free to switch kernels from the one that comes with each ROM.
Click to expand...
Click to collapse
1. Im fairly new to android OS and while I do generally understand what youre saying its best you give me some links. The only root Ive done with a phone so far are 1 clicks
4. can you elaborate more of why cyanogenmod is a good rom. I hear about it alot and people recommend it,but why?
also, what ROM do you use yourself?

WoolyMarmot said:
1. Im fairly new to android OS and while I do generally understand what youre saying its best you give me some links. The only root Ive done with a phone so far are 1 clicks
4. can you elaborate more of why cyanogenmod is a good rom. I hear about it alot and people recommend it,but why?
also, what ROM do you use yourself?
Click to expand...
Click to collapse
It'll all make sense as soon as you do it, I assumed you had a read through some rooting guides for the Nexus S.
The Nexus S uses a little flashing utility called fastboot. fastboot gives us the ability to replace certain parts of our phone with customised versions. For example, you can replace the stock Recovery partition (which only lets you install Google-signed .zip files) with a custom one, such as TWRP or ClockWorkMod (which let you install any correctly-formatted .zip file). To be able to use fastboot, you need to unlock the bootloader. On our phones it is possible to lock it again afterward with no trace, but the phones warranty would technically be voided (<-- scare tactics). So basically, you unlock the bootloader, flash a custom recovery and then you can freely install a .zip file through the recovery which gives you root privileges. Afterward with this new recovery, feel free to install custom ROMs and the such straight through it.
I personally used Zedomax's guide found here. This does exactly what i stated above and gives you all of the tools to do it, as well as a video. Just follow the video to a T and you'll be fine, it is all pretty simply laid out. I personally use CWM recovery though, not TWRP as it is no longer being developed. I'm pretty sure i explained what each of the steps do above.
CyanogenMod, unlike most other ROMs, have a somewhat large team of developers working together. They add many features to many phones which are often ported to other ROMs, whether it be the concept or the code. It is a great ROM once stable with countless features and they generally do a great job making sure everything is just about perfect, and there is plenty of support and a large userbase. This doesn't mean it's the best, it is just one of the most known.
I personally use Slim ICS daily right now. Largest benefit at the moment is compatibility with CMs bigmem mod, the phone loves the extra RAM.

well in that case I dont wanna use cyanogenmod. I was thinking something as close to stock(or just simple) as possible because I plan on using themes and widgets to customize it.

1 more question before I root, does it matter which version of OS it has? For example, this guide: http://forum.xda-developers.com/showthread.php?t=1007782
nvm, phone already rooted
new question: is it possible to dual boot roms? Ive been reading and they say its possible with using particular apps and an SD card, but the nexus S has no sd slot so...