OTA (Over-The-Air) Update Support
The XDA Automotive sub-forum is the gold standard. Search for "MT8227L" or "Android Head Unit." Users often post "unbricking" packs and OEM firmware here. mtk 8227l firmware link
If your unit still boots, you can create a full backup without any external link: mtk 8227l firmware link
to create a full memory dump (ROM backup) before attempting any flash. This is your only safety net if the update fails. Check Memory Specs mtk 8227l firmware link