Yes. In most countries (USA, EU, Brazil, Australia), unlocking your CPE (Customer Premises Equipment) is legal under DMCA exemptions for router configuration. However, if you leased the HG8145V5 from your ISP, unlocking may violate your terms of service. If you brick it, you pay for a replacement.
Disclaimer: This article is for educational purposes. The author is not responsible for voided warranties or internet outages. Always keep a fallback router ready. huawei hg8145v5 unlock 2021
Looking back from today, the 2021 unlock wave was a stop-gap . By late 2022, ISPs started pushing firmware that disabled the Telnet enable vulnerability entirely. Many users who unlocked in 2021 found their ONT auto-updated via TR-069 they thought they'd killed (because the ISP can push a new root CA cert). Verdict for 2021: It worked, but it was a cat-and-mouse game. If you brick it, you pay for a replacement