Vodafone K3770 Voice Activate

[Gintas]

I know about that but where can I find that firmware? There are no firmware in dc-files exactly compatible with K3770. Can you help me if you know please?

Sorry, we do not have firmware files either.

[iboware]

I know about that but where can I find that firmware? There are no firmware in dc-files exactly compatible with K3770. Can you help me if you know please?

[Vincentas]

You need to update firmware that support voice first. Then will be able to activate voice.

[iboware]

Found modem : K3770
Model : Vodafone K3770
IMEI : 356742045474233
Serial NR. : S8X5TB1171138602
Firmware : 21.023.04.00.11
Hardware ver. : CH1E173SM
Voice feature : not supported in current firmware
SIM Lock status : unlocked
Wrong codes entered : 10 (unlock attempts left : 0)

Hello, how can I activate voice for this modem? I tried E173 Firmware but I couldn't install it because of this error:
"The wireless terminal inserted on is not Firmware, update wizard can't work on."