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Old 05-25-2020, 04:44 PM   #401
THX0849
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Quote:
Originally Posted by brettjson View Post
If you don't have wifi then it does have to be updated via USB. I think technically the dealer is suppose to do it. It is silly, because the maps on the nav unit can be updated by the user via USB, but not the firmware. Not sure if the dealer charges for it or not.



I did it myself with my salvaged headunit using the service bulletin and the firmware file from a forum user. It worked fine for me. If you do do it, make sure the engine is running (not in a closed space) because if the power fails during the update it could a big problem. Note that the firmware does check to make sure the USB contains the correct firmware before it uploads it. That made me feel better about it. I personally think this is pretty safe to do yourself, but anyone who tries is doing so at their own risk.



Instructions:

https://www.dropbox.com/s/36jz97a06y...-0001.pdf?dl=0



Firmware file (base headunit):

https://www.dropbox.com/s/dqjd7kz6cu...mOnly.zip?dl=0
You rock! And thanks will try that a little later if it ever stops freaking raining! And yes, i know the disclaimer, well versed with "at your own risk"when flashing custom roms on phones, LOL.
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Old 05-26-2020, 07:34 AM   #402
THX0849
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Tried the update but got the "USB authentication was unsuccessful" message on the screen. seems that might be the wrong update file for my unit according to the instructions. Looking at the pictures in the instructions maybe I'm supposed to use the "MID" file?
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Old 05-26-2020, 07:59 AM   #403
brettjson
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Originally Posted by THX0849 View Post
Tried the update but got the "USB authentication was unsuccessful" message on the screen. seems that might be the wrong update file for my unit according to the instructions. Looking at the pictures in the instructions maybe I'm supposed to use the "MID" file?
You're probably right, I thought your headunit looked like base, but maybe it is mid. Here is the MID file:

https://www.dropbox.com/s/58bztv0nx4...mOnly.zip?dl=0
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Old 05-26-2020, 08:36 AM   #404
THX0849
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brettjson - you DA MAN!! gonna try it in a few, thanks!
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Old 05-26-2020, 10:04 AM   #405
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So i got this far and in the next screen it says to "retry USB unplugged". Will in definitely not unplugging itv at any time and tried the slot best to it as well. Maybe the hub itself is having issue and that is why i have to plug-replug the phone
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Old 05-26-2020, 10:24 AM   #406
brettjson
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That is the correct screen when you have the correct firmware. If it is saying after that the USB hub may well be the issue. On mine after I hit accept it went no trouble.

Although, I did have to format my USB as a FAT32 and not an NTFS. The tech bulletin says try NTFS and if it doesn't work try FAT32. However, when I did NTFS it didn't even get to the authenticate part and definitely not the "Install Now" screen so I don't think that is your issue.

I would reach out to your dealer if you haven't already. This should be covered under warranty. I would just say you get random USB disconnects.

The other thing to check is the dealer interface in the headunit. If you hold "Tune" down and hit "Home" twice about 1 second apart (while holding "Tune") then release "Tune" a second later you enter a diagnostic mode on the headunit. It will show if there are any errors with connections. Try that when you have a good USB connection and again when it fails. That may show you if it is the connection or not.
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Old 05-26-2020, 11:14 AM   #407
THX0849
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Quote:
Originally Posted by brettjson View Post
That is the correct screen when you have the correct firmware. If it is saying after that the USB hub may well be the issue. On mine after I hit accept it went no trouble.



Although, I did have to format my USB as a FAT32 and not an NTFS. The tech bulletin says try NTFS and if it doesn't work try FAT32. However, when I did NTFS it didn't even get to the authenticate part and definitely not the "Install Now" screen so I don't think that is your issue.



I would reach out to your dealer if you haven't already. This should be covered under warranty. I would just say you get random USB disconnects.



The other thing to check is the dealer interface in the headunit. If you hold "Tune" down and hit "Home" twice about 1 second apart (while holding "Tune") then release "Tune" a second later you enter a diagnostic mode on the headunit. It will show if there are any errors with connections. Try that when you have a good USB connection and again when it fails. That may show you if it is the connection or not.
Awesome will try that but will definitely get ahold of the dealer about it. Got a good relationship with them.
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Old 05-26-2020, 02:53 PM   #408
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So i swapped usb sticks for with a couple different manufacturers and it worked! Thank you so much! Kingston and Patriot didn't work but a cheapy throw away did!
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Old 05-26-2020, 03:00 PM   #409
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Nice. Glad it worked! Let us know if the carplay disconnection problem is better.
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Old 05-26-2020, 08:11 PM   #410
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So I performed the update while at work during a quick break so i couldn't try it out at the time. Upon leaving work it worked on the first attempt which is good but again it would previously happen intermittently so i will update after a few days testing it out. HOWEVER it COMPLETELY changed the sound of my system. I've got after market everything other than the radio itself and after the update it sounds like i have no mid-range or mid bass! I wonder if the update changed the "tune" of the head unit along with the software. Gonna have to go to my DSP and check it what's happened, will follow up soon as i get an answer.

Last edited by THX0849; 05-26-2020 at 08:38 PM.
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Old 05-26-2020, 08:27 PM   #411
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Quote:
Originally Posted by THX0849 View Post
So I performed the update while at work during a quick break so i couldn't try it out at the time. Upon leaving work it worked on the first attempt with it good but again it would previously happen intermittently so i will update after a few days testing it out. HOWEVER it COMPLETELY changed the sound of my system. I've got after market everything other than the radio itself and after the update it sounds like i have no mid-range or mid bass! I wonder if the update changed the "tune" of the head unit along with the software. Gonna have to go to my DSP and check it what's happened, will follow up soon as i get an answer.
It may have reset any EQ settings you had previously had.
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Old 05-26-2020, 08:44 PM   #412
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No, I'm not taking about the "EQ" settings in the radio, as they're always flat and still are, I'm talking about the "sound" of the radio itself. These radios have an all-pass filter in them that puts a speaker out of phase at a certain frequency. My DSP settings were set for that but i think the update i performed changed the sound curve of the radio a bit and that'll take the DSP all out of whack.

You can see some of what I've done here;


https://r.tapatalk.com/shareLink/top...ink_source=app
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Old Yesterday, 07:10 PM   #413
brettjson
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Quote:
Originally Posted by THX0849 View Post
No, I'm not taking about the "EQ" settings in the radio, as they're always flat and still are, I'm talking about the "sound" of the radio itself. These radios have an all-pass filter in them that puts a speaker out of phase at a certain frequency. My DSP settings were set for that but i think the update i performed changed the sound curve of the radio a bit and that'll take the DSP all out of whack.

You can see some of what I've done here;


https://r.tapatalk.com/shareLink/top...ink_source=app
Man, you know a LOT more about car audio than I do. That seems like a nice set up you have there. I wonder if in an attempt to make the stock headunit sound better with stock speakers it messed up your tune. I hope you are able to get it sounding better.
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Old Today, 11:38 AM   #414
protivakid
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Originally Posted by silvergc View Post
I am currently discussing this issue with a local audio shop. They said they recently install a Kenwood in a 2018 WRX with the HK factory system and they used the axxess TYTO-02 to get it to work. They will have to take a look at the 2019 HU and see if they can get it to work with the TYTO-02.
Quote:
Originally Posted by protivakid View Post

I don't know if you took my earlier suggestion but taking a multimeter to the harness would tell you a lot. You could determine if in fact the amp is receiving power and perhaps even monitor if data is being sent. Take some readings hooked up to the 2018 radio, then take some hooked up to the 2019 and try to look for any differences.
@silvergc Did you ever make any progress either building a harness or using a multimeter to look at signals?
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Old Today, 11:53 AM   #415
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Quote:
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@silvergc Did you ever make any progress either building a harness or using a multimeter to look at signals?
No. Waiting to see how brettjson attempt at it turns out. Currently he is close to a solution. He currently has someone working on a harness and has the TYTO-02 on hand. I am trying to source one as well.
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Old Today, 09:25 PM   #416
brettjson
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The harness shipped but I am still waiting for it. I will still have to mate the TYTO harness to the one I had built. I will keep everyone updated.
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