Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Allwinner/D1H/SYS_CFG/VER#0x0
FEL_SEL_PAD_STA=RUN_FEL
Version Register
Fel Select Pin Status
0 (RUN_FEL): undefined
1 (TRY_MEDIA_BOOT): undefined
https://github.com/cmsis-svd/cmsis-svd-data