: Provides real-time data on battery health, voltage, and level. *#9900#
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While Samsung’s settings menu shows battery usage, this code provides a deeper technical log. : Provides real-time data on battery health, voltage,
Some carriers (especially in the US like Verizon) disable specific diagnostic codes by default. Dialer App: These codes often only work in the original Samsung Phone app , not third-party dialers from the Play Store. Safe Usage Tips Information Only: Use codes like freely for device specs. Avoid Settings Changes: In menus like Service Mode how+to+use+secret+codes+on+samsung+galaxy+a7+2+work