Unsure of model and how to Jailbreak

Hi! I'm new to the forums. I'm unsure of the model of Kindle I acquired recently and how to jailbreak it.

It's 6", white, no buttons except the power/sleep button, and does NOT have a serial number on the back. The serial number starts with G000 KA05 XXXX XXXX. Firmware version 5.12.1. Wifi Capable (Not 3G).

My research says it the following model...

Kindle E-reader (Previous Generation - 8th) - Black, 6" Display, Wi-Fi, Built-In Audible - Includes Special Offers

Found here... https://www.amazon.com/Amazon-Kindle...017JG41PC?th=1

Someone said something about it being the New Kindle Version 2016? It's NOT a PW3 as far as I can tell.

Just trying to find the right page with info on how to jailbreak. I want the Kindle to be wht "I need", not what Amazon wants it to be. HAHA.

Thanks!