[Q] Firmware question not new to Android but OMG!

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Guys,

Recently ditched my Desire HD which I've had alot of fun with for (what I considered to be) a far superior phone but basically got a little fed up with the display after catching a glimps of the SGS2's screen, haven't had the HD on since!

Although I considered myself adapt at flashing and rooting, I have to admit to finding myself a little confused here as to what exactly I can do with my phone. Yep, I've searched, nope, I don't want flamed, just need a few things cleared up then I'm off to have some fun!

Details from my phone...

PDA: I9100XWKF3
PHONE: I9100XXKH3
CSC: I9100CPWKD1

I'm rooted using CF matched Kernel and have remained on that, does no harm as far as i'm aware except for yellow triangle at boot..

I'd like to go from 2.3.3 to 2.3.4 too and wondering about what to flash and what would fit, my CSC is Carphone Warehouse would that be correct? How important is it to match CSC?

Regards Baseband, doesn't really matter does it but no harm in trying modems is there?

And firmware, thought about Frankenstein XXKF3 or 4 or am I getting things totally wrong? Think it's the WK to XX and not sure what impact that'll have.

And on that note, does the firmware version stiplulate which ROM I can load? So if i go to 2.3.4 (XXKH3 or 4) am I then limited to flashing only XXKH3 or 4 ROM's? Does it matter what I flash over my phone? I've also read that some ROM's contain Kernels and may have to flash a stock kernel after flashing the ROM to match firmware or even re-root?

Actually the more I read back on that, appears I know nothing at all and that's not even funny! Even went back to the original SGS forums in the hope that I'd find what I need there.

I know that unless I move back to stock (which I am at the moment), Kies wont off the eventual 2.3.4 update but to be honest I'm not fussed as developers and cooks here do a much better job and that's experience from my HD days.

I have flashed MIUI as that's the ROM I used longest on the HD, loved it but quickly went back the more I satrted to read and to be honest, would prefer to stay stock for a while and get used to the phone, is that do-able with a flash from the developers forum?

So does the ROM have to match the firmware I'm currently using, can I upgrade to 2.3.4 firmware, choose a kernel of my choice and any rom?

Obviously not picking something up, hopefully someone has the answer I need without the links to pages read allready, want to start having some fun and soon!

Cheers!

I

'd like to go from 2.3.3 to 2.3.4 too and wondering about what to flash and what would fit, my CSC is Carphone Warehouse would that be correct? How important is it to match CSC?

csc is what contains your data settings and is need for internet you should keep the one you have for best internet quality.

Regards Baseband, doesn't really matter does it but no harm in trying modems is there?

no it does not matter if you use different modems.

And firmware, thought about Frankenstein XXKF3 or 4 or am I getting things totally wrong? Think it's the WK to XX and not sure what impact that'll have.

firmware is read by the last three letters KF3 is what you currently have.

there is no problem upgrading to KH4.

And on that note, does the firmware version stiplulate which ROM I can load? So if i go to 2.3.4 (XXKH3 or 4) am I then limited to flashing only XXKH3 or 4 ROM's? Does it matter what I flash over my phone? I've also read that some ROM's contain Kernels and may have to flash a stock kernel after flashing the ROM to match firmware or even re-root?

no your not limited to flashing any rom, you can mix and match arounding to your needs and preferences.

after rooting they reflash the kernal to get rid of the yellow triangle, there is a tuturial for that chainfire's rooting thread, 2nd post.

So does the ROM have to match the firmware I'm currently using, can I upgrade to 2.3.4 firmware, choose a kernel of my choice and any rom?

no the rom does not match the firmware, yes you can upgrade to 2.3.4.

yes you choose the kernal and rom that you prefer.

All roms contain a kernel .

CSC is not really required as long as you enter the settings for your network manually but stick to cwm or xeu for UK ..

CSC are not upgraded and are often much older than the rom version .

KH3 probably the best current modem .

Rom is the whole firmware kernel modem OS etc .

You can have a KF2 firmware and swap kernel to KH2 and modem to KG2 in theory and it will work most of the time for varying combinations .


USB jif is better than flashing kernel to remove warning triangle as it also resets rom counter to zero

Me >>Cognition 1.51 rom based on KH3 and i have KG2 modem and no CSC .
Kernels have swapped just the kernel about four times on this and swapped and tried every rom on here .
Rom backed up using Nandroid via CWM recovery and apps backed up using Titanium pro .
Even a failed boot is usually recoverable with ease on SGS2 .

jje