OBD2 vs. MOST port???

[Ret0102]

updates are really slow with obd2 connection, someone was telling me to use the most port for updates to be applied faster, I've looked everywhere I dont see any other ports?
Its a 2006 BMW 550I, if someone could help me locate this port I would be really greatful!!!



EDIT: I found the port, but could someone direct me to what kinda cable that I need? I cant update my CCC unit because the car is auto shutting off because it's taking so long to update.



EDIT#2 For anyone that'd like to know it's and ICOM-B cable.

[MysticRob]

You try keeping the seatbelt fastened, the ignition on (engine off), and a battery charger hooked up?

[Ret0102]

You try keeping the seatbelt fastened, the ignition on (engine off), and a battery charger hooked up?

After I updated the ECU with the proper vin and updated it I never had the issue again. Currently still working on getting all the new parts matched with proper vin and updated. Afterwards I'll likely do a post with the several issues I've had as well as how I fixed them, along with some videos I've discovered on youtube that helped me sort through this mess.

[Ret0102]

You try keeping the seatbelt fastened, the ignition on (engine off), and a battery charger hooked up?

Having the same issue again, can I update the CCC module with the car running? even with a battery maintainer the damn battery died. This is literally the last actual module I have to program in and it's being a pain in the ass to take care of.

[jclausen]

The bmw battery maintainer used during programming is proving power to support the car while it’s on and they are more than the average charger

[Ret0102]

The bmw battery maintainer used during programming is proving power to support the car while it’s on and they are more than the average charger

Thanks for the advice, I will check into this. The battery maintainer that I have isn't sufficient enough, I made it all the way to 70% and the maintainer gave out, wasn't reliable enough to keep the battery charged.

[jtbgonesailing]

Thanks for the advice, I will check into this. The battery maintainer that I have isn't sufficient enough, I made it all the way to 70% and the maintainer gave out, wasn't reliable enough to keep the battery charged.

Use a second car, with the engine running, jumped to your car. You don’t want to run your car when you’re trying to update/program modules.

[MysticRob]

Also try to ensure all unnecessary systems are off before coding.
DRLs, auto-headlights, fan/AC system, radio, iDrive screen, etc, are all battery killers.
I had a 0.25A battery tender that didn't keep up, but my 1.25A does:
https://www.amazon.com/Battery-Tende.../dp/B00068XCQU
Also ensure you've been charging a few hours at least before trying.

[Ret0102]

Also try to ensure all unnecessary systems are off before coding.
DRLs, auto-headlights, fan/AC system, radio, iDrive screen, etc, are all battery killers.
I had a 0.25A battery tender that didn't keep up, but my 1.25A does:
https://www.amazon.com/Battery-Tende.../dp/B00068XCQU
Also ensure you've been charging a few hours at least before trying.

Everything is off other than the Idrive screen, it comes on/off during the update, as well as the small dash lights. I've not attempted again, but I'm going to this weekend when I have time.