The trucks here that are on BC 1.4 did it with a combination of FDRS and FORScan. It has not been sent out OTA yet.
Hearing what you and others are saying about the power requirements, just blow my mind.
Looks like it’s Slim to None and Slim just left the building.
Yes, it pains me to say, but it’s been nearly a year since the original announcement of its coming availability in the fall of 2023.I find your words sad and painful.
This is the reason the updates for BC 1.4 are on hold. It bricked a few Mach E's in early access that got the update sent to it last December and radio silence since then. Even the 2.8.3 OTA that activated BC 1.0 on job 1 F150's was a nightmare to go through on the ICE trucks with the bigger battery a few years back. Eventually, Ford stopped sending the update completely and skipped to the 3.x.x updates leaving people who didn't get it to have to depend on the dealer to get BC working. I would not be surprised if this ends up the same way.
Obviously, I’m not an engineer, but it is so confusing to hear of cars with massive batteries dying. From lack of power. I understand the 12 V is separate, but is there not some mechanism to only allow the updates to install when the car is plugged in to, a charger or something?
I'm sure there's a reason, but why can't the HVB be connected and top up the LVB during the install? Or is it but it's not able to supply enough power?
When an OTA gets sent, there is a script within the update package that checks the capacity and state of charge of the LVB. If it meets the criteria, the update attempts to install. If it does not, then it will try again once a day for 30 days until the OTA trigger expires and you have to wait for it to be resent.
Not sure, but the HVB only charges the LVB while the vehicle is running. However, for OTA's that require the vehicle to be parked and inhibited while the update installs, this does not work. Maybe because when the vehicle is in inhibit mode, many modules within the network are in full sleep mode and perhaps this prevents whatever mechanism within the car is that allows the HVB to charge the LVB from functioning? Honestly, I don't know. Just like I don't know why the battery heat pumps turn on while installing updates with FDRS if the car is not running. Many people have reported the windshield wipers going off during certain module updates, too.
For this vehicle architecture, there is no mechanism to wake or sleep individual modules (PCM, BCM, APIM, etc.). It's all or nothing, all modules are awake or all are sleeping. So if you want to update the ABS module via OTA, you have to wake the whole vehicle. Having the whole vehicle awake creates a substantial load on the 12v battery. That's dumb, right? Legacy hardware only has this capability.
