Suunto have discovered a software bug in their D9 and D6 computers. On rare occasions the bug can cause the instruments to incorrectly track dive time. The following serial numbers are affected:
- D9 – 62102582 and below
- D6 – 62103693 and below
They strongly recommend that if you have one of these units, you don’t dive it until the software has been upgraded. The good news is that as a complimentary service, at the same time they upgrade your software, Suunto will apparently replace the battery and perform a pressure test free of charge.
You can find out more detail here.