Most 8227L units use or PC flash tool (not OTA).
Do chase "Android 11" for 8227L – it is almost always fake. A properly configured Android 8.1 or 10 (Go) firmware will be faster and more stable. 8227l Android 11 Firmware Download
: Insert the media and power on the unit. Some units will auto-detect the file. If not, tap the center of the screen repeatedly during boot until "detected" appears in green. Most 8227L units use or PC flash tool (not OTA)