Wismo 228 firmware update to L23


I’m unable to find firmware update tools and firmware L23 for Wismo 228.

Current L22 firmware has a few fatal bugs to our operation wich has been fixed in L23 according to release notes:

“If Embedded module is set not sending “+++” sequence as data to the peer by AT+WIPCFG: 2,13,1, data followed by ‘+’ character cannot be sent out.”

“If users send a 4 continuous-plus-sign (’++++’) to Embedded module in the data mode, it will escape from data mode to AT mode.”


Please contact your FAE or distributor.