Troubleshooting flowNo backlight for display or/and keysContextThere are 3 kinds of statuses: No backlight for both display and keys; No backlight for only display; Nobacklight for only keys.Troubleshooting flowRM-298; RM-299Baseband Troubleshooting InstructionsPage 3 –18 COMPANY CONFIDENTIAL Issue 1Copyright © 2007 Nokia. All rights reserved.