You realized that it is
Qualcomm stuff? Like EF81, SXG75, SL91 from BenQ Siemens...
So working Tools are pretty the same...
Like:
BitPim
BMC (Brew Mobile Commander)
QPST (EFS Explorer)
QMAT/PSAS
.
.
many more
About Firmware...
I saw 2 leaked Versions... forgotten which Version...
Best Regards