Help me understand File structure information when using TWRP

I've used twrp a couple times now don't understand the basic file structure of Android and what folders contain what.

If someone direct me to explanation of this it would be greatly appreciated.
I want to know the folder structure and be explained there basic content.

When using TWRP, to backup up or restore, I'm not sure what folders to select to be backed up or to restore and the concequence of selection the wrong ones.

Asus Zenfone 2 ZE500CL Information and questions?

So I made an account just for this as this seems to be the phone I'm gonna have to sit on for a while (sold my nexus 5 in a time of need.. regret now of course haha!).

Basically what I want to know is, is any development with the ZE500CL model in the progress or going to happen? I know this much

It can be rooted
xposed can be installled
Thats all i know.

A few questions I have are

Is it possible to switch the internal storage with the external sd on this device? Like using the external sd as internal storage default?

Will there be a custom rom for this model or is one being developed?

What will happen if you strip it of asus launcher and use stock android launcher or googles?

Sorry if this is the wrong forum or if I said something I shouldn't have, I've been lurkin since I was 14 but am just now making an account when I'm 18..

Information for Developpers

Hello to all,

I post this message in order to have the information.

This message is especially designed for ROM developers.

I explain to you :

1 / When I have my headphones and I listen to music, if I get a call I did not ring or vibration.And when I pick up my phone, the handsfree function is not working. So I can not answer a telephone call.

2 / I cover the screen of smart galaxy mega 6.3, the small window of cover normally when I receive a call I can accept or reject the call (a notification appears on my phone)View the photo

bdotcomsamsunggalaxymegaoriginalsviewflipcoverbdot com130620BdotCom1 - HostingPics.net - Hébergement d'images gratuit

3 / Do you have information on the next rom 6.0 Mashmallow ?

Here I would like to know if it is possible to correct these two little problems.

I still hold to thank the developers for their contribution and help us work for Rom,

I tested several Rom (pac-man, cm12.1, Temasek ....)

Here's my info tel:

I9205 Galaxy mega 6.3
rom 12.1 = MC (the last thank you silesh)
Official Cover samsung smart screen

Thanks for your help.

Cordially good week all

Post all information about Note PRO getting or not Android 6.0 Marshmallow here!

Hi everyone! I created this thread to collect any info about getting a Marshmallow update on our beloved Note PRO.
Did Sammy say anything about it?
Greetings!

New Motherboard SM-T310, How to get rid of pop up System Information ?

I replaced the mainboard of Galaxy Tab 3 8.0 SM-T310, it's new and no serial programmed in it. However, the pop up of system information keeps popping up and blocking the screen.
I tried re flash the newest stock ROM but not able to get rid of it. It's really annoying as it blocks the whole screen. Any help is appreciated.