Firmware upgrade procedures are illustrated on page 37 of the W4K User Guide which can be downloaded from our global website via the following direct link: https://download.schneider-electric.com/files?p_enDocType=User+guide&p_File_Name=AR1740_EdK_User_Wiser_for_KNX_EN.pdf

The latest W4K (Wiser for KNX) firmwares can be found on our global website via the following direct links:
https://download.schneider-electric.com/files?p_enDocType=Firmware+-+Released&p_File_Name=Wiser_for_KNX-2.4.0_hw1.xx.zip&p_Doc_Ref=FW2_4_0-HW_1_X_X-w4k
https://download.schneider-electric.com/files?p_enDocType=Firmware+-+Released&p_File_Name=Wiser_for_KNX-2.4.0_hw2.xx_hw3.xx.zip&p_Doc_Ref=FW2_4_0-HW_2_X_X_HW_3_X_X-w4k

Released for:Schneider Electric Nigeria