How to upgrade my 2012 Prius head unit

I have a 2012 Prius 3. I just got a new Samsung phone and when I connect it via Bluetooth it will work over the car speakers until I stop the car (gas, coffee stop, etc), and when I resume my trip I have to pair again. This didn't happen with my older phones - and the older phones still show in the phones connected list (even though I have removed them several times). This makes me think that the Entune (I'm assuming this car uses Entune, it's what I've been reading online but not entirely sure) operating system needs upgrading. I follow links to the download files I have found online to put them on a USB dongle but none of these links work anymore, plus I want to be sure I am doing the right thing for my car. Where can I go to find the updated files to update my head unit and which version of the update is appropriate? I think it must be the car system that needs upgrading so it stops forgetting my phone every time I stop the car because the phone is a brand new Samsung recent model (22+) and the phone doesn't forget other Bluetooth connections that have been established like earbuds. Thanks for your help on this! It is so annoying to have to pair repeatedly for every car drive!

 

Thanks for this tip. I have looked on the internet for directions on how to do this on my Samsung phone and I can't find anything that tells me how to do it! Is it an easy step process that you might describe how this is done? Thanks again.

 

Sounds like a great fix. I would need help installing, so that would drive up that basic cost of $110. I called a local shop and could get a new unit installed for between $250 and $300....and was very tempted. But instead I went back to the dealer and paid the $80 they wanted to install an update patch on the head unit. That seemed like highway robbery to stick a thumb drive into my dash and voila, but if it worked then it would be a lot cheaper, and no need to tear the dash out. And Toyota wouldn't guarantee that it would fix my problem once I did the update patch. Well, good news, it worked! Now my phone automatically logs on every time. So for the investment, that was the way to go and I was happy......Good luck!