Product & feature guides

If your device will not start.

• Charge with the original charger for at least 30 minutes and check the indicator.
• Try a suitable alternative outlet or compatible cable.
• Follow the model instructions to try a restart by holding the power key for about 10 seconds.
• With the device off and following the manual, remove accessories, SIM or SD cards and try again.
• If there is still no response, provide the model, serial number and indicator status for diagnosis.

Do not charge, replace batteries or open port covers in a hazardous atmosphere. Follow the device manual and explosion-protection documentation in a safe area.

Need engineering support?

Have your model, serial number, software build and issue description ready so the team can identify the right documents and service arrangements.