Here you will find all Service Bulletins issued by Telko.
| Number | Issue date | Bulletin | Severity | Affects | Status |
| 7 | 2022-04-27 | TECDIS TelReport issue |
Minor | TECDIS, COASTAL with Win 10 | Solution ready. |
| 6 | 2020-02-21 | TECDIS Slows down during Head Up mode | Major | TECDIS, TELCHART, COASTAL E | Solution is ready. |
| 5 | 2019-10-04 | TECDIS Failure of chart display suspectedly caused by INT1 presentation | Major | TECDIS 2138 A | Closed. Solved as part of Bulletin #6. |
| 4 | 2019-02-27 | TECDIS freeze during route activation | Major | TECDIS | Under investigation. |
| 3 | 2019-02-14 | BIOS shutdown issue | Major | TELCHART 2124 | Solution is ready. |
| 2 | 2018-10-19 | SSE 22 – Primar certificate error | Minor | TECDIS
TELCHART |
Solution is ready. |
| 1 | 2018-04-17 | TECDIS Startup USB error | Major | TECDIS 2138B | Solution is ready. |