Where download the firmware for quectel modem?

@Martynas Where can I find version 1.2 or 1.4.9 of quectel_flash (QFlash) please? I am trying to revive a dead modem in RUTX11 fhat is stuck in EDL mode. V2.0 of quectel_flash is bugged in some way and hangs during the flash.

Thank you