Kelvin didn’t exploit it. Instead, he wrote a short guide on his shop’s blog: "How to unbrick B312-926 using universal firmware 10031H192SP9C00 – free tool included."
This specific build——is different. It appears to be a generic, unbranded Huawei release. Here’s what it unlocks: huawei b312926 firmware 10031h192sp9c00 universal work
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