UPDATES NOT COMPLETING DUE TO BATTERY LEVEL

[Firn]

Fwiw I would strongly recommend charging the battery disconnected from the truck and using a decent quality 12v battery charger. Then installing and resetting the BMS. IMO you want to ensure the battery was 100% fully charged and letting it run, or getting a new battery, does not make certain the battery is fully charged for the bms reset.

Also, have you had the lvb bms replacement performed?

Beyond that, if you almost always use the truck for short trips either remote start regularly, or let it run while you up town performing errands.

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[metzgerc]

MY23 Lariat. I tried to just charge 12 volt battery and let schedule update take over but it failed. Called Ford prior to below steps and they said run the truck for 45 minutes then let it update on schedule but had already done that without success.

Here’s what I did to get the frunk security update on Sep 9 to succeed:

-Charge 12 volt battery with external $25 trickle charger(see other posts on where to connect charger) overnight.
-Start charging the vehicle.
-Initiate software update “now” while vehicle is charging.

Worked on first try. Will update post if next update fails with same error of low battery issue.

 

[Storm Breaker]

MY23 Lariat. I tried to just charge 12 volt battery and let schedule update take over but it failed. Called Ford prior to below steps and they said run the truck for 45 minutes then let it update on schedule but had already done that without success.

Here’s what I did to get the frunk security update on Sep 9 to succeed:

-Charge 12 volt battery with external $25 trickle charger(see other posts on where to connect charger) overnight.
-Start charging the vehicle.
-Initiate software update “now” while vehicle is charging.

Worked on first try. Will update post if next update fails with same error of low battery issue.

how do you trickle charge with the frunk closed

 

[Adventureboy]

how do you trickle charge with the frunk closed

I simply closed the frunk on the extension cord initially. After that I permanently mounted a battery maintainer on the back of the access panel and ran a cord from the 12v battery bay to a permanently installed 120v socket in the front air scoop. I plug it in any time I'm not going to drive for a couple of days.

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