@lakotaubp Finally! Success! I thank you for your encouraging comments as I stumbled on thru the fog on this frustrating experience, caused by my lack of understanding assuredly. I think my error was in not understanding that when it rebooted, during the early part of the install process, that the Android Recovery page with its Ubuntu Action and Android Action was the target and I should have left it alone at that point! What a long strange trip it has been! I hope the powers that be decide to incorporate it going forward as it is good advertising as 3T_Ed noted.

Re: Ubuntu Touch on the Galaxy S5 helpitalicised text

If you have UT Tweak Tool installed be sure to check SSH settings under UTTT/System/SSH settings...

Not an intuitive step...

I have the "echo on the caller's end" problem also... I find using earbuds seems to solve the problem... ymmv.

@gischpelino Thank you for your observation. Indeed I did install TWRP in order to install "Powered by Ubuntu Touch" flash screen. Being informationally challenged i somehow had both UBports Recovery and TWRP which evidently caused the update to fail. When I reinstalled the OS as Lakotaubp recommended then TWRP vanished thankfully.

@lakotaubp I reinstalled using UBports installer and now showing OTA-19 with no updates pending

@lakotaubp I experimented with the various channels, except edge, and now have 2 updates that will not update no matter what, versions 7 & 37 respectively allegedly downloaded, and one marked "Update failed" and Cancelled Making progress evidently but in the wrong direction

2 Q:
Do you have TWRP on your device?
Would a reset be of any benefit or is the reinstall you mentioned the best/only option?

@lakotaubp Given it a good while but nothing happens... just stays on the top menu waiting on an input.

@moem Which is your daily use phone?

@lakotaubp Thanks for your response. It boots into TWRP's top menu and then just sits there presumably awaiting a user input. I'll leave it alone for a while and see what , if anything, happens

@moem Correct, my apologies...
OnePlus 3T it is Congrats on your OP3

I'm back again! OP1 3T Ubuntu 16.04 (OTA-18) Under Updates it reports Update Available: Ubuntu touch (sic) version 7 Downloaded and Install button is shown.

Instructions from the Install button offer a "Restart & Install" option. Pressing this boots in to TWRP and selecting "Reboot" from the main screen and then "System" it reboots and looking under Updates nothing has changed... the update is still reported as Downloaded and the Install button is still there.

Q. Where are downloaded system updates located?

Thank you in advance for any pointers