Idea E303D dongle comes with firmware version 21.157.71.02.356 and carries dashboard version UTPS21.005.20.06.356_MAC&LNX21.005.20.03.356.
I have already provided Idea NetSetter E303 (E303D) customized dashboard which supports Windows and Linux version.
Presently my team is working on this modem as no firmware works with this dongle. Means, there is no solution for unlocking of Idea NetSetter E303/E303D/E303Ds-1 is available yet. Once working solution found, this post will be updated accordingly.
(To repair Idea E303D damaged modem)