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: Perform simple checks first, such as the "Process of Elimination".

: If the device won't start, check the power cord, outlet, and surge protector. Download Depannage Guide Complet pdf

: Ensure all cables (USB, HDMI, etc.) are securely connected and pins are not bent. : Perform simple checks first, such as the

Effective troubleshooting is sequential and follows a specific logic to ensure efficiency and safety. : Perform simple checks first

: List potential reasons (e.g., loose cables, software conflict, hardware failure).