How to Solve JLR SDD2 V146 error “Device not opened”

here is the tips to help user solve “Device not opened” error of FLYOBD JLR SDD2 SDD V146 diagnostic & programming software for Jaguar and Landrover.

Online activation:

Device not opened


Click on PROgrAM, then this error pops up. Click on Close, and the LED light on JLR SDD2 scanner turns green


Analysis from engineers:

Possibly it’s a driver issue.

Please check your JLR SDD V146 driver installation.

Usually the driver is automatically installed, after the Jaguar and Land Rover software installation success

So check the Computer Management:

Check COM port

(PC would select it automatically; COM number depends on different PC)


Done well, problem solved, hope it can help you!


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