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‎11-15-2021 04:12 PM

HP Recommended
Product: Designjet T770
Operating System: Microsoft Windows 10 (64-bit)

In the driver download page for the the Designjet T770 the checksum of the "TT6-TTAJ_08_04_00.1_mvl40-x86-opt_B.signed.fmw" firmware is reported as "c4d17d8fe878bff5436812913f34471a" .

 

The checksum calculation using fciv.exe and WinMD5Free  reports  as follows:

c5c347059780d80918ff7b3dce09a33c tt6-ttaj_08_02_03.3.90_mvl40-x86-opt_b.fmw
600ef5ee87ae29907a3d1a7242594625 tt6-ttaj_08_04_00.1_mvl40-x86-opt_b.signed.fmw

 

The files was downloaded twice, using two different internet connections.

 

The firmware update using "...08_02_03..." is accepted.

The firmware update using "..08_04_00..." is rejected with "invalid file" error.


Does anyone have an idea what I'm doing wrong?

 

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