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I have little doubt that it could be reprogrammed via the CAN bus, the problem being figuring out the commands, which would be a lot of work, and only worthwhile if this was a common enough problem to be worth spending the time on.
In the JSON file for PEB ecu, I have found these functions :

{
"name": "DataRead.Vehicle_Identification_Number",
"replybytes": "618100000000000000000000000000000000000000",
"deny_sds": [],
"receivebyte_dataitems": {
"Vin In Ascii": {
"ref": true,
"firstbyte": 3
},
"Vin CRC": {
"ref": true,
"firstbyte": 20
}
},
"minbytes": 21,
"sentbytes": "2181"
}

{
"name": "DataWrite.Vehicle_Identification_Number",
"replybytes": "7B81",
"deny_sds": [],
"sendbyte_dataitems": {
"Vin In Ascii": {
"firstbyte": 3
},
"Vin CRC": {
"firstbyte": 20
}
},
"minbytes": 2,
"sentbytes": "3B8100000000000000000000000000000000000000"
}

I'm not a DDT4ALL expert, but maybe it's an idea?
 

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Yeah - depends on the category of writeoff: What is an insurance write-off? Your Guide to Cat A, B, S (C) & N (D) | RAC Drive
I had my car written off, bought it back from the insurance company, got it repaired to make it totally safe, leaving some minor cosmetic damage and drove it for another 4 years. The money the insurance company gave me was more than the cost of repairs + buying the car back so I was quids in. Just note that you then can't part-exchange the car and will struggle to sell it on again later, as the writoff will appear in any checks done, so its value is fairly low.
Yes I had a BMW 5 Series Smacked up the back on December morning on the way to work and was written off but bought it back for £35 (2016) taken out of the £1300 pay off which was reduces by 40% for minor cosmetic scuffs. A body shop replaced the boot and bumper with part from a BMW specialist breaker and straighten the boot seal and boot floor. He then resprayed the back end and did paint correction on the rest of the car and it cost only £760 parts and labour so I was well chuffed. I kept it for a further 3 years. Always asked for the buyback after an insurance company declares your car a write off in the unfortunate event of an accident. They are in most instances just an uneconomic repair. Especially with an EV as the battery is a valuable asset and even if you don't wish to repair the vehicle yourself there is a ready market for these for classic conversions.
 

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Though

Though it's possible a manufacturer could include internal software that requires a regular "call home" and disables charging or running, or limits performance if it doesn't manage it, though they'd get such bad publicity that it would be a really stupid move. Look at what's happenned in the agrigultural machinery market with makers like John Deere - if you replace a module you have to get a tech out to enable it.
However if this happens on any mainstream car, it will inevitably get hacked to remove such restrictions.
Tesla disable writ off cars from using their Supercharger network and they aren't bothered by publicity and I doubt it will bother any other. On the positive side if your car were to be stolen perhaps it would be a good idea to have it disabled remotely?
 

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I had a bus bar replaced when DC-DC was replaced, I think he said there was some kind of coating on it that had cracked (but I might be Chinese Whispering it or thinking of some other part)

Kind of miss having a windscreen heater. Just have to be a little more patient when it's misted up :)
Something else missing from the MG ZS EV then :(
 

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Tesla disable writ off cars from using their Supercharger network and they aren't bothered by publicity and I doubt it will bother any other. On the positive side if your car were to be stolen perhaps it would be a good idea to have it disabled remotely?
This is hit and miss as a lot don't seem to in the UK
 
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