[PLUG] Upgrading rooted Samsung Android phone

[John Jason Jordan]

On Fri, 7 Jul 2017 22:02:21 -0700
carl day <carl0spamday at gmail.com> dijo:

>Normally if root android OS is upgraded
>ROOT needs to be reloaded. The wiki of keis
>sounds like a "sideloading" of the upgraded image.
>There is a TWRP version for that phone.
>I read XDA and used adb/fastboot when i did my roots.
>Most of the "1-click" roots are M$-Windoz based
>which i do not trust.

What is TWRP? If it is an image/software, where can I get it?

What are XDA and adb/fastboot?