I have a Teac 552E CD-Writer with 1.05 firmware version.
I tried to update to 1.14 using the firmware from Teac site.
I run the utility and in the end it tells me that the update process was successful.
After reboot when I checked the firmware version is still 1.05
I had this problem too when I tried to update to 1.09
The cd-writer is on Secondary IDE on a Ali Aladdin 5 mainboard
Do you have any idea?