Can't update or install software

[bcnaz]

There are many methods and software Apps available to "restore" your system.

But at this point I was assuming you just want to "install" a system that works..?

but maybe you are mixing installation methods and restore methods ?

For a basic installation,  everything your phone needs to operate should be on the 'downloaded' image..
( It does NOT have saved information it needs from previous installs)
For sake of simplicity,  I suggest trying Mobian or Manjaro 'Phosh',  ... download a recent release,
    ...  use Balena Etcher to flash the image to a 16 or 32gb sd card.
put that sd card into your phone and try 'booting' from that.

When you do boot into a new system, the first time it will take a little longer to boot - as it will "Resize" your image to use the whole sd card.

Next check that you have made all the correct entries in "Settings"  including the choices in  'Regions & Languages' and your wifi information.
  (Need to put at least one good/working phone number into your 'Contacts' - using format: country code > area code > Phone number - for testing calls)
and you will need accurate information to correctly fill-in your APN information, for cellular data use.

Then do your updates, they should work directly from the software store, *(this does require an internet connection)
***  Only -  If the semi-automatic store updates do not work, * then try to install the Gnome package updater, and do updates  from there.
"Re-start your phone"  ** ( I let the timer 'time-out' instead of clicking on the option to instantly restart)
You should now be able to call and sms text

I think it would be easiest for you to do the sd card installation first, 
* AFTER  you have succeeded with the sd card,
  ***  it should be simpler for you to install to the phones eMMC later.

*** I suggest doing all the settings first, *  as a wrong or unmade choice can possibly  affect your ability to download updates.

There are a multitude of different methods that will work, * but the steps are not all inter-changeable.
 I chose Mobian and Manjaro OSes as I think your odds  for out of the box success, ... are best with those.
  ***(I would pick Arch over Manjaro personally, but sometimes Arch needs to be tweaked 'out of the box') 
For Test purposes the 16 & 32gb micro-sd cards work very well, *But you can use from 8gb to 2Tb micro-sd cards.
When I first started playing with the Pine Products (Pinebook Pro) I used an old Dell laptop with Ubuntu on it,  as that was easiest
for me to install a working copy of Balena Etcher on.
Since then,  I have had a 99+% success rate using Balena Etcher to do hundreds of micro-sd card flashes.
  Using the sd cards is great,  you can swap sd cards in about a minute to compare different OSes, or just different releases.

** There are a Lot of very smart members here on the forum, but sometimes their explanations are a bit too technical for us GUI users.
   As a GUI user I have been extremely successful in making my Pine products work.
See the thread  'Bookworm'  for some of my recent Mobian OS test results, * which recent releases work or do not work "Out of the Box".