Newbie Questions!

Hi everyone. So, this week my LG G2 is arriving and as i don't like stock roms cause of its bloatware and stuff, i want to make the processes to change to a good, smooth and fast ROM to get the maximum performance of this amazing phone.
i'm not a newbie on changing roms, but i AM newbie on this device. my old one was a motorola razr HD xt925 which for start i had to unlock bootloader to be able to flash any custom roms...so i gotta ask here, cause i didnt find a good thread for this (IF there is one, please post here!)

1 - is it needed to unlock bootloader first?
2 - when the phone arrives, what are the processes to direclty flash a custom rom?
3 - idk if this kind of question is allowed, but is there a ROM that stands out for better performance of the device? i like to play high graphic games!

for now that's it.
thanks guys!

Newbie Help Please.

Hi. I have been a long time iphone person, since the first one. I decided to switch and got an S6 edge. I love it. However i need some fundamentals please. Is there a thread or link someone can share please or just help me here. I need to know everything. I was able to root my device and figure out some basics but id like to know more. Such as why put a custom rom on my phone, what exactly is a custom rom, how to get into certain modes on my phone and why/what they are mean, whats a bootloader and what does it do. What can be formatted what cannot. I could go on but i hope everyone understands what i mean. Also im not asking for someone to do the work for me i just need to know what to read and whats what of what. Thank you.

Newbie Help Please.

Hi. I have been a long time iphone person, since the first one. I decided to switch and got an S6 edge. I love it. However i need some fundamentals please. Is there a thread or link someone can share please or just help me here. I need to know everything. I was able to root my device and figure out some basics but id like to know more. Such as why put a custom rom on my phone, what exactly is a custom rom, how to get into certain modes on my phone and why/what they are mean, whats a bootloader and what does it do. What can be formatted what cannot. I could go on but i hope everyone understands what i mean. Also im not asking for someone to do the work for me i just need to know what to read and whats what of what. Thank you.

Newbie + quick question

I recently bought an unlocked tab s 10.5 att variant (i'm on tmobile). I tried to update to lollipop but it's not available. Is there anyway I can still update to lollipop without rooting? Or is rooting + flashing my only way to get lollipop? thank you for your help

edit- oops, please move to Q&A, accidentally posted here in general section

Newbie: Help me choose a safe kernel (read post first)

Hi There!

Before redirecting me to Chasmodo´s Which kernel is safe/unsafe
safehttp://forum.xda-developers.com/showthread.php?t=1857556 please notice
that I am a newbie and I can´t understand all the stuff there. So stating clearly that the thread is useless to me and that no one seems to respond to my questions there I have just decided to open a new thread in search for the solution. So maybe any expert around here may drop me a hand. Let´s get to the point.

I have a rooted ICS 4.2.2 ROm with AOKP installed. My Kernel version is 3.0.85-NX-Kernel_1.4.1 neobuddy89@ubuntu #1
N7000XXLT3
STUNNER VERSION 2.7.13

The thing is that I´d like to install a ICS based stock rom. I have downloaded the latest FOP Rom from Sammobile for my country. Now .......I read here in the forum that some kernels are unsafe to flash from.....so I am in Panic!!
My first question is.............. which safe kernel should I download for my cell phone?. I don´t understand all the numbers and characters here for the different versions. Please let me know which kernel iI should download!.

Kind Regards,

Medved

stupid newbie bricked sgh-t999l

I'm an idiot. my t-mobile S3. I gave myself superuser status, then started erasing files I thought were crap. I accidentally erased a t-mobile file (can't remember which one) now it gives me the samsung logo then restarts. can't get it to do anything else. my question. can it ever be fixed by anyone, or do I need to buy a new one?

Please help newbie t805

Hi guys

Just bought a t805 and loving it atm. Few questions if anyone can help:

1. its a t805 but its got a octacore 5420 chip does that make a difference if I wnt to install custom recoveries/roms should I install for the t805 or t800?

2. Are there any good roms for battery and speed on the t805 worth flashing?, reason being don't want to trip know if theres nothing better than stock.

3. Any good tips for battery and speed if not?

4. Are there any fast chargers out there that are compatible i.e the charger that comes with the s6?

5. If I root without tripping knox can I get rid of all the bloatware that's installed my rom is T805XXU1BOC1?

6. Finally would love to make use of the sd card for more app installation any way of doing this.

Guys I appreciate that all this info is most probably in the threads but in all honesty came onto this tab quite late so will involve loads of reading and asking loads of questions so any help is really appreciated.

Many thanks
Mav