Solution: You flashed the wrong resolution. Re-enter recovery (hold RST + power) and flash the correct 8227l firmware for your screen size.
Warning: Do not download from random file-sharing sites or YouTube links in descriptions without scanning. Many contain ransomware or corrupted partition tables. 8227l Android 11 Firmware Download
Do not download any firmware until you collect this data. Using the wrong MCU or resolution will kill your touch screen or cause a black screen. Solution: You flashed the wrong resolution