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This is the safest and only recommended method for most users. Sunmi rolls out updates regionally; if an update isn't showing up, it usually means it hasn't been released for your specific device model variant yet.

PSAM, for more, professional fields. Supporting a PSAM Card, it is applicable for the check of the three meters (gas, electricity, 商米官网 SUNMI V2 PRO sunmi v2 pro firmware download

on their main consumer website. Unlike smartphone manufacturers, Sunmi primarily distributes firmware through two official channels: This is the safest and only recommended method