Sony Xperia Z3c 5.1.1 root step by step (easy)

Hey folks out there... I have made a step by step tutorial video on how to root 5.1.1 of our z3c... Hope it will help everyone :)
Link: https://www.youtube.com/watch?v=aue_zS779W8

Making a New ebay Fire Phone (ATT) initial set-up guide- please help with "step 3"

My Fire Phone will be arriving from Ebay tomorrow (new, ATT unlocked version) and wanting to figure out the best steps to optimize it before it auto-updates to 4.6.4. Lots of great info in these threads, but I'm a bit uncertain about the correct steps to take once my phone arrives. Figured a bunch of people are in the same boat, so I'm trying to write a quick guide and hope to draw from people's experience here.

Step 1:
Activate Phone with Amazon to get free year of Prime. Follow guide at: spinyourfire.com/fire-phone-tips-and-tricks/register-fire-phone/

Step 2:
Unlock phone using code from Ebay seller.

***Step 3:
This is where I'm a bit confused. I know that gApps work best with 4.6.3, but that ATT versions automatically update to 4.6.4, which is not gApps friendly. It sounds like downgrading from 4.6.4 is time consuming...
So what do people rec is the best initial step? Should I turn off automatic updates or is there a better course of action? Maybe I need to install root/Safestrap and then use the stock 4.6.3 image?

Step 4:
Install gApps following the guide at spinyourfire.com/fire-phone-tips-and-tricks/turn-fire-phone-into-android-phone

Step 5:
Conserve battery life:
Disable Tilt/Swivel/Dynamic Perspective/Peek/Auto-scroll – Go to Settings > Display > Configure low motion settings – Enable ‘Low Motion Mode’
Disable Bluetooth, NFC and any other features you are not using.

Step 6:
consider more advanced options such as Root/Safestrap in order to make CM11 or SlimKat possible (see developer threads.) Also consider adding an alternative start screen and/or Google Now.

need step by step guide - installing latest kodi and have icon on home screen

i want to update my version of kodi, i think i have an old verison installed. how can i update it and maintain the icon on homescreen?

is there a guide? the last time i did it was months ago and unsure if there have been changes to doing this / easier method...
to be honest i can't remember exactly, but i am using a llama / ikon tv replacement i believe)

thanks

step to root advan vandroid S35D

Advan Vandroid S35D is bearable, already kitkat, but still contained a shortage, the size of the RAM, the ROM is very small, the effort to root would be done, but there a little problem before root in this android, perhaps the master knows how to backup ROM on android, in recovery mode contained no menus backup / restore, thank you.
Model Number : S35D
Android Version : 4.4.2
Build number : WG3588-S35D_V1.0-2015.03.12

Point me to the right place for root steps by step

I'm on Build 1545VRUFNK4 and 4.4.2> tried towelroot but says device is not supported (tired 3 times). Aslo could not get Kingoroot to work.