Rooting Nokia 8110 - Success with trial and errors

This page doesn't tell the detail of how to do Rooting, but this is the addendum to make it.  Following is the lesson learned from trial & errors of rooting Nokia 8110, untold in the web site:  https://sites.google.com/view/bananahackers/home?authuser=0 This site is the only & wonderful source of how to do Rooting, I just added more comments on something untold or unclear for me. 1. Safe Method using Firefox 52.9ESR was not working for me with Nokia 8110 ROM 14.0, Under Windows 10 - Cannot do "Open package App: OmniSD", but Under Ubuntu - Cannot do "Remote Runtime at port 6000". Both OS are the latest as of 2019-04-01.  2. I recommend to use Alternative Way at Ubuntu (Windows doesn't support this ) :  https://sites.google.com/view/bananahackers/install-omnisd/alternative-jailbreak?authuser=0 , but you may suffer from one thing with an error : XPCShell : File Not Found. No solution for this with hours of googling, but some hint at this...