@lakotaubp Noted, thanks.

@lakotaubp installef in the last week. The probem was update setup had some sort of bug I think. In the mean time I have reinstalled and things become okay. Now I have update channel options. I set it to development channel and the system take update and few small priblem solved (like flash light etc). Thanks.

Fresh install 20.04 RC on Pixel 3a XL never update, do not have update channel option too. Plz help

SOLVED -- Re: Best file system format for Micro SD Card with Ubuntu Touch? [Solved]

SYSTEM UT 16.04: I was failing to mount sdcard FAT32 etc. Later tried (for 64GB sdcard) formatted to GPT and partition with exFat, UT properly detect and mount it on /media/phablet/ and WORKING. Hope it will be helpful (try).

I have installed 20.04 RC (working execellent). Now want to test 16.04 stable. Can any one instruct me the rightway to do it? Also, how to get back (install again) to 20.04 RC untill the release of stable one. Infact it is important to know install / reinstall process. Thanks in advance.

Re: Libertine
Can not find Libertine on Pixel 3a XL with newly installed 20.04 RC. Is it compatible or not?