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I have used two type ZMEAUZB1 and ZMEARAZ2.
After i buy them, upgrade ZMEAUZB1 to SDK version 5.27 then . i can use for KR/TW/JP and connect to other zwave devices(KR)
but ZMEARAZ2 can't upgrade till version 5.27, now ZMEARAZ2 is upgraded 5.23. Firmware 5.23 is latest version?
Still I haven't used ZMEARAZ2 board for KR/TW/JP

It was not yet released

So, you mean i can't use for KR now. when 5.27 version will release?

Hello,

the latest Version of Razberry is in the moment 5.23.

Please, change the frequency in Zway with follow command:

http://YOUR_RASPI:8083/ZWave.zway/Run/ZMEFreqChange(8)

or with ssh

echo -ne "\x01\x04\x00\xF2\x08\x01" > /dev/ttyAMA0


Best regards
Z-Wave Support