Ver. 4.0.3

Pairing operation process of rear derailleur and dual control lever of some units cannot be completed, when the firmware version of ST-R9270 is lower than ver. 4.0.2.
If pairing operation process cannot be completed, use one of below applications to update the firmware version of ST-R9270 to ver. 4.0.3 or higher.
* Following is the firmware updating procedure of each application, E-TUBE PROJECT Professional Ver.5.0.2 or higher, or E-TUBE PROJECT Cyclist Ver.5.0.2 or higher.
Procedure using the E-TUBE PROJECT Professional:
* Use SM-PCE02 to connect the PC and the dual control lever by wire, next, update the firmware, and finally do the pairing.
* In case SM-PCE02 is not available, please contact the place where you purchased the product.
Update: https://si.shimano.com/iUM/7J4WA/update/toc_task_nnp_xs2_g4b
Pairing: https://si.shimano.com/iUM/7J4WA/pairing_process/TOC_PAIRING_PROCESS
Procedure using the E-TUBE PROJECT Cyclist:
* Connect the rear derailleur and the dual control lever by wire, next, update the firmware, and finally do the pairing.
Update: https://si.shimano.com/iUM/7J4WA/update/toc_task_nnp_xs2_g4b
Pairing: https://si.shimano.com/iUM/7J4WA/pairing_process/TOC_PAIRING_PROCESS

Ver. 4.0.2

Firmware released.