I accidentally read this article, we are a small assembly business in Vietnam, currently I have firmware of different versions.
V18.1.31.11.1-20210729 Using SOC Ingenic T21
V21.1.21.6.3-20210222 Using SOC Ingenic T31N
V21.1.28.16.3-20211201 Using SOC Ingenic T31N
If you need it, please contact...