Since official codes are unavailable, the most common "working" method is through paid third-party services. How it works:

If your Nova 5T is still on EMUI 10 (Android 10) or EMUI 11 (without the 2024+ patches), the free tool might work. This exploit targets the Huawei USB 1.0 mode vulnerability.

Both DC-Unlocker and HCU Client were legends for Kirin devices. However, as of January 2026:

. It bypasses the need for an official code by using a "testpoint" on the motherboard.

Despite the difficulty, why do users still try?

Use a tool like PotatoNV (open-source) to generate or set a custom 16-digit unlock code. Third-Party Paid Services