Chromeleon License File -

Symptom: Chromeleon opens, but you cannot control your HPLC or GC. Error: "Feature not available."

Cause: The license file does not contain the correct instrument drivers or modules (e.g., missing "VWD" or "MS" feature codes). chromeleon license file

Fix: Review the license file in a text editor. Look for lines starting with FEATURE. Compare against your purchase order. Contact Thermo to add missing features; you will receive a new license file. Symptom: Chromeleon opens, but you cannot control your

If you have no backup and the drive is dead, you need a Rehost. Look for lines starting with FEATURE

Cause: A user opened the .lic file in Notepad and accidentally added a space or a carriage return. Fix: Request a fresh copy from Thermo Fisher or restore from a known-good backup. Do not try to edit the file manually.