How to create his own rom in 2017 ? - Galaxy S III Q&A, Help & Troubleshooting

Hello guys
I am very interrested in Android, and it's been a long time that I flashed custom roms in my Galaxy S3 i9300.
And now, I want to create my own rom
I saw this guide but you know it was in 2012... So I wonder if it's still up-to-date.
Maybe, the tools are not the same, the methods and so on...
So I want to know how to create custom roms like this or this , I mean great and beautiful roms.
Also, I want to know if is it better to create a rom in a Linux OS ? ( I use LinuxMint)
Tell me everything I need to know (even if is it hard) about creating a custom rom for the Galaxy S3 i9300 today in 2017 ^^
Thanks in advance for helphing
[PS : Sorry for mistakes in english, I am french]

Anyone to help me...?

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[Q] Help to de-odex GT-S5300

hello everyone, really need some help, I'm new to the android world, I have a samsung galaxy GT-S5300 pocket, rooted and CWM recovery, I installed some roms, and I really like a lot, but I would like to create my own rom, I read tutorials seen videos, and can not find how to create my own rom in a zip for flashing with cwm, and I have not been able to de-odex apk applications so that those who want to have a cooked rom GT-S5300 to help me teach me the way to do it by myself and thus be able to contribute to this great community, thank you all.
sorry for my bad English

running out of phone memory after installing custom rom

Sir,
i recently rooted my phone. After that i have install custom rom. And my problm is this that i had install custom rom one after another for 2 time. To see which one suits its better. But now i m seeing that i have only 25mb left in my galaxy y dous gt s-6102. Sir plzz help me i am in very panic situation dnt know how to deal with it. Plzzz help me ASAP.
Thanks in advance.
Mayur.
Help if I can
That sounds like a very frustrating situation! I have some experience flashing ROMS on different phones, but I am no expert. I am not familiar with that specific phone, but if its like other Samsung phones I am familiar with there is a detailed, listed procedure for flashing a ROM. Usually there is some type of system partition format or factory reset involved to remove files that may not be compatible with the new ROM. I suggest searching this forum for your specific model, then for a post with a step by step instruction to flash a ROM. It may be you missed a step. At the very least, you can try to reflash with confidence.
mayurmedalwar88 said:
Sir,
i recently rooted my phone. After that i have install custom rom. And my problm is this that i had install custom rom one after another for 2 time. To see which one suits its better. But now i m seeing that i have only 25mb left in my galaxy y dous gt s-6102. Sir plzz help me i am in very panic situation dnt know how to deal with it. Plzzz help me ASAP.
Thanks in advance.
Mayur.
Click to expand...
Click to collapse

[Q] Hello!

I have rooted my phone but I have another question, how do I flash my ROM into custom ROM? Tried many things from Youtube and not successful at doing so , So I need professional help how to do it correctly. I'm trying to flash it to cyanogenmod or something better, I dont know, lol I just need to look and figure which is best for me, Thank you

i would need a little help guys

new on the forum guys ! the community as allways been helpfull to me ! im in a lil trouble at the moment , if anyone cant help that would be awsome!
i just bought a samsung S5 sport previously locked on sprint witch i unlock using the metod provided on this thred
http://forum.xda-developers.com/spr...onfirmed-sim-unlocked-s5-sport-g860p-t3128965 worked just fine for the unlock but unfortunately my back up corrupted! and i cant go back to lolipop! ou flash any other rom that ising based on or ported for ( the ported ones always prompt me the warrenty set :kernel . warning at every boot & then bootloop) am not realy familiar with flashing bootloader if that is my problem to be honest am quite lost ahhaa if anyone can explane to me what kernel / bootloader i need to at least flash any custom rom (fusion 6.0 exp) i know how odin works i can get around my **** but not completely hahha i would like to know the right combination (kernel / firmware/ bootloader ) i need to get my phone off that ported sm-g900p rom that was only intended to simunlock my phone thanks for your time and help !
setting at the time
software v. G860PVPU2B0H1
ANDROID V. 4.4.4
BUILD. KTU84P.G900PVPU1ANI3
on samsung galaxy S5 Sport (SM-G860P) ROOTED

Custom rom for GT-S6790N

Hi guys , i want to thank you all for all the guides that helped me root my android. After that i searched for a custom rom , for my GT-S6790N , but the popular ones arent made for my phone ... I would like to find something that is as close to the classic android(the one from google without samsung changes, like the one from nexus phones)...If some of you can help me with that i would be very thankful.

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