@Kindol:
1. Had no chance to work, it requires a factory FW, not a production one

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2. That's not the right file, you need to look inside that first tarball for the main-htmlviewer.tar.gz one.
(Alternatively, it's been updated and uploaded as-is in @BD's release thread).
That should basically resolve all your troubles

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Note that if by "reset", you mean "factory reset", you will *have* to reinstall the factory fw, because that reset will switch a factory FW to a production one.