[Q] Rom Dev question ??? - Android Q&A, Help & Troubleshooting

This goes out to any and all coders / dev's for android or anyone else who may have a clue . I have stepped into the world of developing roms for the android platform as I "program" as a hooby (java,html,flash, etc ) i have designed a rom based on ics for the galaxy s2 everything seemed to work find once i flashed to my phone all apps worked aside from a couple of force close the install went smooth as silk but for some reason it relocked my sim card. The phone is a galaxy s2 I777 from AT&T unlocked being used on tmobile i have built and rebuilt the rom trying different kernels/aosp / stock etc it does not seem to matter it always relocks the simcard. I have searched high and low to try and find an answer if anyone knows what i may be doing wrong or at least point me in a direction I could look o would be greatful. i would really like to release this rom but without getting rid of that bug i fear i will never release it.

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[Q] ICS default Stock UI on Galaxy S2, Is it possible, How ?

Hi All,
I am new to this forum and also to this Smartphone world
I am planning to buy Galaxy S2 , but want to use ICS Stock UI ( I can wait for official ICS update or use some ICS ROM ) , but what I want to know is that how can I use default ICS Stock UI on my Galaxy S2.
And another question when we use unofficial ROM on our Android phone , what are the risks we should consider in terms of our personal data security and also the stability of our phone ?
Thanks,
Maverick
mavericki said:
Hi All,
I am new to this forum and also to this Smartphone world
I am planning to buy Galaxy S2 , but want to use ICS Stock UI ( I can wait for official ICS update or use some ICS ROM ) , but what I want to know is that how can I use default ICS Stock UI on my Galaxy S2.
And another question when we use unofficial ROM on our Android phone , what are the risks we should consider in terms of our personal data security and also the stability of our phone ?
Thanks,
Maverick
Click to expand...
Click to collapse
If you do some reading around the SGS2 forum, you'll find all of the information you seek. Or you could try google...either way, the powers that be here at XDA aren't very friendly to those who don't bother trying to research, read, or use the search function. I'm trying to be a bit more personable.
At the moment, ICS is in either the Alpha or Beta stage...meaning that it's still buggy and doesn't really function as a daily driver yet.
To get ICS right now, you have to flash a ROM...which involves root access. The risks are pretty high. You have the risk of bricking your phone, if you don't read the instructions and follow them exactly, which isn't always easy because you're not very likely to find exact instructions for your specific phone (the hardware specs will match, but the ROM/Radio/Modem numbers may be different which can lead to confusion). You also run the risk of voiding your warranty, which is a pretty significant one.
I flashed an ICS build yesterday, and then my S2 wouldn't charge. I eventually flashed back (thank God I had made a backup yesterday, and 2 days ago as the one from yesterday didn't work!)
As far as security goes, nothing really to worry about. Dev's don't build in Carrier IQ and don't really want your personal data. But the flip side is, that they don't get paid for what they do...so if you have a problem or 'eff something up, you're pretty much on your own. You can ask for help, but again, sometimes the dev's don't want to be bothered with a question if it's already been answered or if you could've found the answer by searching for it. This is where it gets rude, sometimes.
That's the long answer. The short answer is READ, READ, READ...everything about your phone and flashing ROM's. Start at the beginning of the forum, as that's where the 'stickies' are and work your way thru. ICS will be released officially and stably later.
Hope that helps.
Thanks ,
I have googled it and read some threads on this forum and on others as well... thats how I came to know that you can root your phone with unofficial ICS ROM... but wasn't sure that in that case , will I get ICS with TouchWiz or Stock UI...
And 2nd thing that if I screwed up what will happen to my personal data...
anyhow thanks for replying my (dumb ? ) question

Getting Confused more and more..Need Help

Hi Guys as my title Says..
i need Help very Badly.
First of all MODS and USERS i'm sorry i didn't knew where to post this thread so if its in in-appropriate section please move it to correct section. THanks
OK my problem is this.
i recently (less than a week ago ) bought a Samsung Galaxy S2 its by Bell Canada and its i9100M. i bought it online since my service provider is Rogers.
i guess this phone is already rooted to unlock it and i can see CWM and SU icon there.
Well i'm a Hardcore Blackberry Fan and have been using Blackberries from last 6 years. I loved the new samsung because of it looks and its screen.
I Had Lot of Problem with it like setting up my yahoo as push email, setting the Ringtone Profile, setting up the Custom Ringtones for Text Messages..
Having wrong time stamps on Recieved TEXT Message.. well i fixed all those by installing apps from market and forwarding my yahoo to my gmail...
i Hated doing all that but infront of the beauty of this phone i had to compromise but today it took 3 hours to find my gps location and day by day im using it i'm hating it .....
SO OK I DID MY RESEARCH AND FOUND OUT ALOT... the more i'm researching the more i'm getting confused...
first of all what is the difference between custom ROM and KERNEL.
i know custom rom could be like operating system but customized by unofficial person.
what the h is KERNEL..
to install rom's or kernel do i really have to root.
To unlock do i have to root or is there a paying method.
also i want to know if i'll go back to stock rom can i still unlock it.and recieve all the updates from samsung or google specially when ICS will be launched.
after unlocking and installing custom root. can i unroot it
and lastly which is best custom kernel and which is the best rom availble.
since been a blackberry user i have very basic needs. i don't play any games or download much apps and if an app is paid..i'll pay for it.. i don't want to jailbreak anything .
all i need is better battery life, gps and network coverage.
Thanks for taking time to read and reply.
Hi there.
I'll try and get through your questions as simply as possible,
Imagine your phone is like a car
A kernel is like the engine of a car - it's the low level machinery that keeps it going.
The Rom is like the body of the car around the engine. Roms can be official (or Stock Roms), or they can be customised by other people.
So, when you install a stock rom - you're installing the kernel, but you're also installing the radio (called a modem or baseband) and the registration (or the CSC which is location specific information) as well as the unique 'body' of the car for that rom - tweaks, default software, etc.
You don't have to have rooted your phone to install a Rom. When you update your phone via Kies, you are, literally, installing an stock rom. You can even install stock roms from elsewhere without rooting your phone. Because stock roms are released in different regions at different times, lots of people update their phones to the latest official roms via this method - no root required.
However, to install a custom, unofficial rom, you will need to root your phone as they will require access to the 'root level directory' of your phone's file system - which is what root really means.
You can find everything you need to know about that, how to root and also lots of stock roms you can install without rooting here:
Some shops will root you phone for you if you want to go down that path and don't want to risk it. But it's easier than you think and the galaxy s2 is very hard to break. There's lots of help available on XDA - just remember to search before you ask so you don't ask a common question the millionth time.
If you have installed a custom rom you can easily re-install a stock rom over it that will still work with Kies and thus be updateable when ICS turns up.
There is no 'best' Rom or kernel. Some Roms go 'as is' and some are customisable to the nth degree if you like fiddling with your phone non-stop. I personally use CheckRom because I like the kitchen app that lets you swap kernels, modems and mods with ease - but check out the Original Android Development threads and see which other roms you like the sound of.
Depending on what you are currently running, a new rom - even a stock one if you're running a very old one - could easily help with battery and range issues. For GPS - try installing FasterFix from the market and see if reassigning your GPS fix to a closer location helps.
Best of luck - it's a great phone once you open up its possibilities
Thanks a lot for the reply
well your reply did help me a lot...
my phone is been already rooted by someone else already from the person i bought it....
as for searching i did a lot.. and its been confusing me more and more ..well thanks for your answer
also as u said S2 is hard to break..i guess u mean is that the JIG thing on EBAY
and as for flashing the stuff i've played with other stuff just not android thing ive replaced the os on BB and jailbreaked iphones and installed macintosh on HP PC and also worked on most of the languages 10 years ago... and i believe nothing is impossible so going to someone else is never an option for me
just want to know as much as stuff i can before going further
well i have few more questions
how can i find which rom or kernel is already installed...
i mean is it possible to tell if its stock or its customized and its customized by which group.
and one last thing.. u know the words u used modem and baseband...
i read about it before...
but my question is ...
IS THE BASEBAND ANYTHING LIKE IPHONE BASEBAND???
u know in iPhones when baseband is updated u r screwed sometimes its hard to jailbreak and definately hard to unlock and reverting changes to baseband....
is it the samething in Galaxy S2 as well...
Thanks a lot for replying...i really appreciate all the time you took to reply.
Thanks once again.
Yeah baseband is the code that handles the phone part of your smartphone. Talking to your wireless provider, 3G, texts all these things are done by baseband.
Flashing a different baseband won't screw your root, and you'd still be rooted. Samsung doesn't make it hard to root as Apple does to jailbreaking. Even if something goes wrong with a new version, you can always revert back to old one using Odin(Samsung ROM flashing tool) and you are good to go.
Thanks a lot... about that quick reply...
i'm gonna collect more information and hopefully i'll be flashing it on weekend...
but how can i find which rom or kernel is already installed...
i mean is it possible to tell if its stock or its customized and its customized by which group
Everything you need to know can be found here. Most of it, anyway.
Backup your device with cwm when rooted ... So you can always restore to previous state. ;-)
Good luck there. But reading is a must.
SGS II - XDA
blackberryfan said:
thanks a lot... About that quick reply...
I'm gonna collect more information and hopefully i'll be flashing it on weekend...
But how can i find which rom or kernel is already installed...
In your dialer type *#1234#
info will apear. Now read chainfire's tutorial how to root your device ....
I mean is it possible to tell if its stock or its customized and its customized by which group
Click to expand...
Click to collapse
Setting went wrong when quoting
sgs ii - xda
also you can go settings - about phone - then look at the bottom fields to see kernel, baseband and build. Quote those and we should be able to tell what you have.
Sent from my GT-I9100 using XDA App

[Q] Need help

Hi, I have a Galaxy S3 GT i9300. I ordered it online, probably came from Germany since it came with a bunch of paper in German.
Anyway, I live in Portugal, and my carrier is TMN, and I'm really confused on how to root it, and unlocking the bootloader, which I don't know if it's really necessary or not, and then the ROM, which I'll bring up in a moment.
I updated all the way up to 4.1.2 now this is what I want to know:
1. The easiest way to root, I have questions about this cause there are so many ways, and I don't know which one is the best, or the right one cause I don't know if it's unlocked or not, but I'm guessing it is since I'm using a TMN (portuguese carrier) Sim card.
2. Do I need to unlock bootloader? If so, what's the easiest way?
3. Now I'd like to know of a stable ROM, preferably with 4.2.1, or 4.1.2, also I'd like to know if there is any way I could keep the Samsung Apps, and if not, if there is a way to get them back. All in all, I want a clean, fast and stable ROM.
Thank you all.
Nurega21 said:
Hi, I have a Galaxy S3 GT i9300. I ordered it online, probably came from Germany since it came with a bunch of paper in German.
Anyway, I live in Portugal, and my carrier is TMN, and I'm really confused on how to root it, and unlocking the bootloader, which I don't know if it's really necessary or not, and then the ROM, which I'll bring up in a moment.
I updated all the way up to 4.1.2 now this is what I want to know:
1. The easiest way to root, I have questions about this cause there are so many ways, and I don't know which one is the best, or the right one cause I don't know if it's unlocked or not, but I'm guessing it is since I'm using a TMN (portuguese carrier) Sim card.
2. Do I need to unlock bootloader? If so, what's the easiest way?
3. Now I'd like to know of a stable ROM, preferably with 4.2.1, or 4.1.2, also I'd like to know if there is any way I could keep the Samsung Apps, and if not, if there is a way to get them back. All in all, I want a clean, fast and stable ROM.
Thank you all.
Click to expand...
Click to collapse
i would have thought you would root it exactly the same as you would with all other i9300 devices, with cf auto root (http://forum.xda-developers.com/showthread.php?t=1957273) however it doesnt install a custom recovery which you need to install roms. for that a good option is phillz touch (http://forum.xda-developers.com/showthread.php?t=2002953) which is based on cwm after rooting while on android 4.1.2 there is normally a red exclamation mark in the top left corner on boot. this is due to a new bootloader which sammy introduced to help them find phones that have been rooted and sent in for repair. the way arround this is to download the old ice cream sandwich bootloader (i dont have the link but im sure you can find it, i forgot where i downloaded it from sorry ) you may not need this or not be bothered about this so its your choice as for rom it depends on weather your looking for vanilla android or a samsung based rom. however there are no perfect rom it is purely based on your own opinion although a widely used and stable vanilla rom is cyanogen mod (http://forum.xda-developers.com/showthread.php?t=1779426) and most sammy roms are stable as they are not really altered much from stock however i use android revolution and have had no issues with it (http://forum.xda-developers.com/showthread.php?t=1797334). hope i helped in some way and i hope that what i said isnt too confusing thank you for reading
why does everyone want being spoonfed? what happened to good ol' searching? you're asking the most basic questions, do you really think they haven't been answered?
and asking for a clran/stable/good rom is against the rules
Nurega21 said:
1. The easiest way to root, I have questions about this cause there are so many ways, and I don't know which one is the best, or the right one cause I don't know if it's unlocked or not, but I'm guessing it is since I'm using a TMN (portuguese carrier) Sim card.
No best no right you pick a method .
2. Do I need to unlock bootloader? If so, what's the easiest way?
So you dont even bother to read the basic faqs and guides .
3. Now I'd like to know of a stable ROM, preferably with 4.2.1, or 4.1.2, also I'd like to know if there is any way I could keep the Samsung Apps, and if not, if there is a way to get them back. All in all, I want a clean, fast and stable ROM.
BEST ROM posts are banned but you wont know have you have not bothered to read the rules or the faqs and guides .
jje
Click to expand...
Click to collapse
Nurega21 said:
3. Now I'd like to know of a stable ROM, preferably with 4.2.1, or 4.1.2, also I'd like to know if there is any way I could keep the Samsung Apps, and if not, if there is a way to get them back. All in all, I want a clean, fast and stable ROM.
Thank you all.
Click to expand...
Click to collapse
Thread closed. I think the responses above cover most of it
Please use search before posting and don't post Best ROM questions, they are frowned upon.

[Q] Advice on rooting Galaxy Wifi 5 player (UK): Process & stable rom

hi.
not sure if this is the best place to ask but I thought I'd try; can anyone advise on the most up to date and stable rom available for the Galaxy Wifi 5 (UK)? I'm trying to root my Wifi 5 in order to install more recent software. I'm currently stuck on 2.2.2 (!)
I'd ask about a simple safe way to root as well but I'm hoping that the quagmire of information culled from the fora so far will serve me in good stead.
I have tried searching the various forums but frankly there's a hell of a lot and most of it seems overly complicated sometimes confusing and contradictory....
If this isn't the right place please let me know and I'll ask elsewhere.
Alternatively if you can advise on an alternative Android powered portable music hardware device even better
If you want stock ROM with little modification you can get the latest European here http://forum.xda-developers.com/showthread.php?t=1446774
They're already rooted.
About another Android player, well... Philips has one but with no camera.

[Q] A few questions about the Note 2

Hello, Im new here, Just heard about XDA and how its the best forum (knowledge-wise) out there. I dont have enough knowledge and experience with smartphones (Im more of a PC freak, building and hardware and stuff) but smartphones are a whole different subject.
lately Im having some "hangings" on my Galaxy Note 2 (N7100, 4.1.2 stock) it started when browsing firefox, and continuing to Whatsapp, it started freezing for a minute or so.. (which is quite a long period of time like u probably know.)
I started checking the whole Root&ROMs subject, and also found out that there's a way to update my phone to Android 4.3 JellyBean.
so here are my q's , What is the most CURRENT stable OFFICIAL OS (from what I saw online there's no 4.4.2 for Isarel-ILO (if it matters at all? Because I've seen a few official EU versions from various countries) and people just get a custom ROM of 4.4.2 to run it and also that quite a few ppl on here had some issues with it and were pretty happy about 4.3. So what do u think ?
also, I will probably need the best ROM for the OS you will recommend next (from what I read ROMs can boost phone performence) but I am not sure about it yet
but I am certain that I'm gonna root my phone, but can u tell me exactly how does rooting help ? I mean in which aspects and such..?
Thank you very much in advance, 73RM1N470R.
** just fyi, I figured I'd hard reset my phone and then update the Android to 4.3/4.4.2 which would help the hanging issue , and then root it. (not 100% sure about the ROMs..)

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