vth 5221d-s2

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    I tried to upgrade VTH 5221D-S2 and failed

    Hi everybody, as in the title, I tried to upgrade my VTH monitor 5221D-S2, which had the following: System Version: General_MulLang_English_P_SIP_PART MCU Version: MCU_P_V1.105.0000001.0.R.20181217 Security Baseline Version: V2.0 I tried to load...
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