Toshiba MQ02ABD100H (AAN), terminal connection problem

[AT3000_user]

Hello,

I have a Toshiba MQ02ABD100H (Drive REV. AAN) which has problem on accessing user LBA. I need to disable the internal flash permanent cache. Either from menu or using terminal command. In both cases terminal connection is necessary.
My problem is that, this revision doesn't allow terminal connection. I changed USB ports, Terminal adapters, TTL settings, cables..I even checked with new Terminal5 but it did not help. I can easily establish terminal connection with other revisions of the same model, such as MQ02ABD100H AAT, without any problem.
Do you have such experience with this revision? Have you ever found a solution?