Step 1. Log into FlashLine from either http://www.kent.edu or http://flashline.kent.edu.
Step 2. Click "Settings" in the Navigation Pane
Step 3. In the "My Profile" section, click "Update Password"
Step 4. In the "Account Setup" field, enter your non-Kent alternate email address twice for verification, then enter your new password twice for verification
For more details, please check out the Knowledge-base article.