Went through for me, it's 0126 now (was 0104). Don't see any difference in terms of operation, but I did not have the problems above, so couldn't tell even if there was any difference.
2017 HP Spectre x360 15 i7-8550U GTX150 + GTX970@16Gbps-TB3 (HP Omen Accelerator) + Oculus Rift + Win10 [no guide]
HP Omen Accelerator Thunderbolt 3 enclosure legs stand removal walkthrough
Employed by HP, but my posts and opinions expressed on this forum are my own.
>> Does anyone have similar experiences or knows a way to solve this problem?
The same issue for me. I tried it 5 times with two different OMENS...
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Have you tried updating it again and checked what FW is installed when the update starts?
My update used to end like yours but next time I ran the update again, it was still on 104.
Anyhow it would still be nice to know how to install the FW cause I do have occasional bugs that I'd like to get rid of.
Greets
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My update initially reports 104 but then refreshes, saying I have 126, matching update version. It states PASS. Then fails update, presumably as already on 126. I also note the versions are 1.0A on HP site.
Device continues to work well. Looking forward to trying a 2080 out next half of the year 🙂
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Mine behaves in the same way. At first the update windows states PASS but then an error message pops up.
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.Did anyone find a solution to this? I'm a little disappointed by the sotware support HP offers.
The Omen Accelerator is one of the most promising eGPUs but fails especially when it comes to software (and build quality).
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I've got the same problem : firmware update passes and then shows a error popup...
Also having the firmware update failure. Any luck with hp support on this?
Also USB devices are lagging. Anyone able to fix that with active tb3 cable?
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.There seems to be a new installer available (march version) on the HP website.
I'll be able to test it tomorrow, maybe share your experience as well 
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.Thanks for the alert @golgo. Seems to work. Omen flicks on and off and I get system message saying update has been successful. I note the bin file is the same as the previous update which didn't seem to do much. HP_GA1_10_Accelerator_Shiva_AR_EP_A68_B1_rev25_W_TI83B_020_25_SEC1_sign.bin
The HP note only says "Fixes an issue where an update to the accelerator firmware does not install properly."
I'd try and see if the update fixes the I/O port problem but I can't be bothered - everything is working great with separate USB hub 🙂
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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