Bytes for Fiat 500 Proxy Alingment

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budgoz
Posts: 31
Joined: 14 Oct 2020, 23:09

Re: Bytes for Fiat 500 Proxy Alingment

Post by budgoz »

GTEX wrote: 18 Nov 2025, 23:28
budgoz wrote: 18 Nov 2025, 13:31
GTEX wrote: 16 Nov 2025, 13:28 Hello everyone, I have a 2019 Fiat 500 Lounge with Uconnect 7" and a single USB port. I have tried all the proxy codes I could find to activate Carplay without success. I reverse engineered the bytes but couldn't get it to work.

My configuration from the Engineering menu:

Serial OTF191083901276, SW Version 23.00.81.03, HW Version D6, Checksum (CRC), 7d8e

Hardware release 0.32.5.1, Firmware release 0.0.0.2, Serial number OTF191083901276, Production Date 2019-03-24

HWariant DAB eMMC GPS S&S USB BT LS CAN MIC1 dMIC 9V PhtSupl DT, FP

USB : 0x30001:Hub [2 Ports], 0x30102:Unknown Device, 0x30101:Mass Storage

My proxy stock :

33 32 31 35 30 30 34 36 36 37 39 4F 55 54 50 55 54 44 4A 49 54 20 18 12 17 4F 84 00 05 10 00 00 00 09 00 00 04 10 00 00 00 83 C7 71 06 FE 00 1C C0 00 00 00 16 00 01 00 94 06 41 01 00 40 00 82 00 75 41 0A 0C 0D 01 80 2E 24 00 00 00 00 31 05 11 03 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 74 00 94 00 22 00 04 88 00 00 20 80 00 00 44 00 D5 00 0F 00 00 00 00 01 00 60 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 44 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

193 bytes with uconnect on 44 and USB byte 115 on 00. I changed it to 05 01 01 and USB to 04, but without success. When I connect my phone, I have mobile phone display options that appear with iPhone, but when I click on them, nothing happens.

Excel Drive link for byte comparison: https://1drv.ms/x/c/cc9bc4f3da1db915/EQPHSG6-iuNHgD_NkPnBWOYBOd-eZimcQdsRJ4DVtrAU8Q?e=tuZUZ9

Does anyone have any ideas or could share their proxy code for a Fiat 500 or Abarth with a single USB port?
@Romain did you find a solution ? we have the same uconnect byte 44 and I did not see a lot this byte.
Hello,

unfortunately not all Uconnects 7" have the hardware for the Carplay.

Anyway your best shot is to update the firmware first (link: https://drive.google.com/file/d/1Y4irT-r9_FgREHnCzB6YPCEZ3VQtspgH/view?usp=sharing).
You need to extract all the fies in the root folder of a USB drive formatted in FAT32. After you insert it and wait for 60 seconds, the Uconnect will prompt you to start the update. It takes approx 30 minutes, you better do it while driving or with the battery connected to a charger. DO NOT TURN THE DASH/UCONNECT OFF DURING THE PROCESS.

After the upadte is done, you can try again with the proxy alignment.

You don not have the AUX port, right?

My suggestion is the following version:

Code: Select all

33 32 31 35 30 30 34 36 36 37 39 4F 55 54 50 55 54 44 4A 49 54 20 18 12 17 4F 84 00 05 10 00 00 00 09 00 00 04 10 00 00 00 83 C7 75 06 FE 00 1C C0 00 00 00 16 00 01 00 94 06 41 01 00 40 00 82 20 75 41 0A 0C 0D 01 80 2E 24 00 00 00 00 31 05 11 03 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 74 00 94 00 22 00 04 88 00 00 20 80 00 00 44 00 95 00 0F 00 00 00 00 01 00 C0 0C 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05 00 00 00 00 00 00 00 00 01 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Fingers crossed.
Hi,

Thanks for your reply and your time to help me. Yes, I think I don't have the right hardware for CarPlay, even though the car was built in 2019.

I don't have an aux port; I only have one USB port.

I'm still trying to find a solution and I wondered if CarPlay doesn't work, maybe Android Auto does. I tested it and it works!

I was inspired by this post: https://www.forum-fiat-tipo.net/viewtopic.php?f=22&t=2129&p=25611&hilit=carplay#p25611 (French version).

He uses an Android Auto AI box that can emulate CarPlay with a passthrough Android Auto.

I'm going to buy one and test it to get CarPlay. Maybe other peoples tried this option ? and can be able to use CarPlay on a large screen.
If Android Auto works, Carplay 100% works as well. It might be a cable issue, did you try with an originale one? And did you check if everything is enable on the iphone side?
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