> More and more systems have ways to recover from a bad update, especially when the manufacturer offers OTA updates, but in the case like article where an the ECU is not designed to be updated by end-consumers, a bad flash/update can lead to the device being left useless.
and there is no way to obtain the original ROM? and flash it and everything is ok again?
> and there is no way to obtain the original ROM? and flash it and everything is ok again?
If it was permanently bricked, then no. The device would be in a state that it could not restart the flash process.
If reflashing were possible with the original ROM, it would not be considered permanently bricked.
It would be possible that an OEM or advanced specialist may have the ability to salvage a permanently bricked device, through special equipment, and/or repair/replace components. However for all practical purposes, if a (update/patch/hacking) process can leave a device "permanently bricked", an end-user cannot recover from that state.
and there is no way to obtain the original ROM? and flash it and everything is ok again?