i didn’t update my phone for 30 months because of reports about the Bluetooth having issues and i don’t really care as long as Firefox/Whatsapp/phone calls/mails work as intended.
today i went through all the updates seamlessly and every thing seems to function great,even better then before,including Bluetooth.
so Kudos.
i did have to delete and recreate my Gmail account.
What a question!
Bypassing the stop releases (while updating at the CLI) is bound to break the phone fully or partially, causing problems immediately or during the next update.