I found this site, pakphones.com with a link for the US730. Right now, unfortunately, cloudflare can’t reach the ul.to host, but if you haven’t tried this one, one could hope it actually works some day.
I also found a (possibly dead) link at this site, lg-firmwares.com, though it’s cookie, captcha and waiting time protected, and the download doesn’t begin for me right now…
Your search string also lead me to this forum thread, where I found a relevant filename to look for: LG730ZV8_05.S8_00.P61009.cab
1-LGExtract -kdz name of flash file with kdz extention(as :LGExtract -kdz US73011b_03.S11b_03.P15107.kdz) 2-result of 1 is a file as: LG730ZV8_05.S8_00.P61009.cab 3-extract [it] by winrar here 4-LGExtract -wdb name of flash file with wdb name of flash file with dll asLGExtract -wdb US73011b_03.S11b_03.P15107.wdb US73011b_03.dll).
This lead me back to the pakphones blog, where I found these (possibly dead) links to relevant files on this page:
LG Venice LG730
Flasher LGNPST Store & Lab.zip
Firmware LG730ZV8_05.S8_00.P61009.cab [mirror]
Components & DLL LGNPST_Components_Ver_5_0_20_0.zip LGNPST_GenericModels_Ver_5_0_12_0.zip LG730_120831.rar
Service Manual EN_LG730_SVC_ENG_120919.pdf
User Manual RDL-1209-00011_LG730_Boost_UG_EN_V1.0_120925.pdf
You have probably already seen all or most of this, but maybe there’s some missing puzzle piece somewhere in this information?
Note: the .cab files mentioned in this post are not URLs, even though (at least my) Lemmy client formats them as that.
Like a fridge or kitchen appliance that rejects foods from your local store, your neighbours’ or your own produce… Pretty useless.