Can OTA's be reversed if necessary

[tearitupsports]

I am curious to know if it is possible to revert back to older code in order to reverse out an OTA in case it has something that is not wanted in it.
In my specific case with my bi-directional charger, I am very hesitant to allow the truck to do update OBCC-AS.AU (which I have been offered) since it is specific to the DC charging. I am worried that the update could possibly break something and not allow bi-directional charging.
I would feel more comfortable doing the update if I knew it could be backed out to the previous version (even if that is not easy to do). Does anyone have absolute assurance of how this works one way or another?

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[TaxmanHog]

I am curious to know if it is possible to revert back to older code in order to reverse out an OTA in case it has something that is not wanted in it.
In my specific case with my bi-directional charger, I am very hesitant to allow the truck to do update OBCC-AS.AU (which I have been offered) since it is specific to the DC charging. I am worried that the update could possibly break something and not allow bi-directional charging.
I would feel more comfortable doing the update if I knew it could be backed out to the previous version (even if that is not easy to do). Does anyone have absolute assurance of how this works one way or another?

I've never heard of anyone being able to revert to prior code if the package was installed correctly.

 

[bmwhitetx]

If anyone could do it, it would be @Jesse-Infotainment !

 

[rugedraw]

I am curious to know if it is possible to revert back to older code in order to reverse out an OTA in case it has something that is not wanted in it.
In my specific case with my bi-directional charger, I am very hesitant to allow the truck to do update OBCC-AS.AU (which I have been offered) since it is specific to the DC charging. I am worried that the update could possibly break something and not allow bi-directional charging.
I would feel more comfortable doing the update if I knew it could be backed out to the previous version (even if that is not easy to do). Does anyone have absolute assurance of how this works one way or another?

For most modules, the short is answer is yes. But, it would require having the old files before the new files install. You would need FDRS to get the current files so when the new ones install, you can roll it back using alternative methods.

 

[Jesse-Infotainment]

Yeah you have the old Files.. to roll them back.. the AsBuild doesn't always change and on some of these modules there is no accessible configuration.

This particular OTA i believe is multi module.. I cant remember but I believe it is.. and all the modules involved would have to be rolled back.

The ONLY module I have never been able to roll back is the APIM.. I can roll back SOME of the files in that but it gets to be hard.

I have most all files.. BUT if you are concerned send me your VIN so Ican verify the update and that i have the files just in case. Ford pulls all old files off server once new once are available.

 

[RickLightning]

So, to be clear, the ansewer for anyone without FDRS access is "no, you cannot roll back OTA updates".

 

[rugedraw]

So, to be clear, the ansewer for anyone without FDRS access is "no, you cannot roll back OTA updates".

Unless Jesse or I (or anyone else) already have the files and can share them with you. I have some files to fix common issues that plagued job 1 F150's and Mach E's, but my database is very small. During the good old days before Ford messed up FDRS for us, getting the files was very easy. Had I known then what I knew now, I would have gotten all the files I could.

 

[Jesse-Infotainment]

So, to be clear, the ansewer for anyone without FDRS access is "no, you cannot roll back OTA updates".

FDRS will not roll back.. Only install currently pending updates.

 

[RickLightning]

Unless Jesse or I (or anyone else) already have the files and can share them with you. I have some files to fix common issues that plagued job 1 F150's and Mach E's, but my database is very small. During the good old days before Ford messed up FDRS for us, getting the files was very easy. Had I known then what I knew now, I would have gotten all the files I could.

FDRS will not roll back.. Only install currently pending updates.

So now I am really confused.

Bob gets an OTA update on his truck, and wants to roll it back. What are the steps that Bob, who has no access to any Ford systems, would need to do?

I'm thinking Bob is SOL.

 

[rugedraw]

So now I am really confused.

Bob gets an OTA update on his truck, and wants to roll it back. What are the steps that Bob, who has no access to any Ford systems, would need to do?

I'm thinking Bob is SOL.

Bob messages me or Jesse and in most cases, we'll figure it out. Bob would need FORScan. There are some valid cases were rolling something back was the only way to fix it and when that happens, we are happy to help. I helped someone roll back a module on the F150 forum earlier this week to address a known issue that affects the performance of deployable running boards.

 

[chl]

Does anyone know if the update in question would cause troubles for V2X bi0-directional systems?

"In my specific case with my bi-directional charger, I am very hesitant to allow the truck to do update OBCC-AS.AU (which I have been offered) since it is specific to the DC charging."

If not, then rolling it back wouldn't be needed and we could all breathe a sigh of relief.

Maybe someone could ask the State of Charge folks?

 

[chl]

Find someone who's had the update, hook them up to a V2X system like SIGEnergy, see if it still works, report back.

 

[potato]

Bob messages me or Jesse and in most cases, we'll figure it out. Bob would need FORScan. There are some valid cases were rolling something back was the only way to fix it and when that happens, we are happy to help. I helped someone roll back a module on the F150 forum earlier this week to address a known issue that affects the performance of deployable running boards.

FORscan? Sounds like you are talking about module configuration. The OP's question was about the module firmware itself.

 

[rugedraw]

FORscan? Sounds like you are talking about module configuration. The OP's question was about the module firmware itself.

Yes, I know. I'm also talking about the firmware. You can learn more about it on the FORScan forum if you're interested.

 

[Jesse-Infotainment]

We have Forscan verisons that will flash the VBF files.

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