I do NOT support "latest fw" at ALL. If you have one you should block updates on router and wait for it to STOP being "latest":) If you want me to help you please paste FULL log(s) to "spoiler"/"code" bbcodes or provide link(s) to pasted file(s) on https://pastebin.com Otherwise "NO HELP"!!!If you want root DISABLE internet access to your device!!!!DO NOT EVER INSTALL FIRMWARE UPGRADE !!!!
I was able to install samygo using USB method for e series.
It is not yet perfect as the autostart is not working but like sectroyer said, it might work 100% at some point.