The main logic board may have a loose connection or faulty firmware Operation Panel Cable:
: In rare cases, a defective controller board (CTL) or a faulty memory module may be the culprit. Step-by-Step Troubleshooting Guide
The main logic board may have a loose connection or faulty firmware Operation Panel Cable:
: In rare cases, a defective controller board (CTL) or a faulty memory module may be the culprit. Step-by-Step Troubleshooting Guide