Can an ELM327 adapter be used to flash a VIN?

Question

Can a Bluetooth ELM327 adapter be used to flash a VIN?

It's claimed here that

The vin number is about the only thing in the PCM that's not a protected value.

Answer 1

My understanding is ... yes, you can. Don't go away so fast though ... there are caveats:

• The ELM327 device is only a passthrough. It is just a connection from your device to the PCM. There is no way (to my knowledge) to use just the ELM327 device for this.
• You have to have software to read, modify, and write the new VIN back into your PCM. Most often, the read/write software is different from the modifying software.
• This will not work on every vehicle. Some require specialized equipment.

The guy in this video briefly talks about using an ELM327. He uses other equipment to do it. You can see what he has to do to get the VIN changed on the GM PCM.