Mtk Nvram Editor Link

Manually edit or fix MAC addresses for WiFi and Bluetooth to resolve "authentication failed" or "searching" loops.

The remains one of the most powerful repair tools in the Android ecosystem. With this guide, you now have the knowledge to diagnose, back up, and repair NVRAM-related issues on any MediaTek device. Whether you're a hobbyist fixing your own phone or a technician running a repair shop, mastering this tool will pay dividends countless times over. mtk nvram editor

If you have a backup from a working phone (same model and chipset): Manually edit or fix MAC addresses for WiFi