@Flohack

OK, i'll see that, thanks

@Lakotaubp

Thanks.

Didn't know it was possible the "no wipe" option with the installer.

What folder do i need to backup to save my data (contacts, sms/mms, etc) ? Is it all in home/phablet?

Hi everyone.

First of all, be cool with my english, i'm a froggy
Second : thanks a lot to all devs that keep this system alive and progressing, GAFAM stuff is really not mine...

I have a MX4 with Ubuntu since this device was released with that os on stock.
Last update i have is 15.04 (OTA-15) from canonical.
I installed open-store since official store is deprecated, but now even that way, apps won't update, because my system's to old.

I'd like to know if i can update with last ub port "on the air" by any way?
Or, if i must use the flasher, what files i need to save in order to keep my datas (all of it)?

Thanks.