Sorry if already posted :o , but I wasn’t able to find an answer to this.
With liteon burners it is not possible to flash to a previous version of firmware using official flasher. It is possible only using tools like eeprom utility and omnipatcher.
Referring to this thread, there is no tool to do a backup of benq firmwares.
On this thread pinto2 says that to restore a previous firmware it is sufficient to reflash with official flasher. Is it true also with 1640 firmwares?
I ask this because I want compare between BSHB and BSJB firmwares on discs of the same box, to choose what give me better results.
Finally (sorry if it is a dumb question ), how many times can I reflash without damage eeprom?