!full! | How+to+use+secret+codes+on+samsung+galaxy+a7+2+work

Using secret codes on your Samsung Galaxy A7 (2018) is easy. Here's how:

*#0228# Action: Displays detailed battery information. Data shown: Voltage, temperature, battery level percentage (raw), and charge/discharge cycles. Warning: Do not press the "Quick Start" button unless you want to calibrate the battery (this can cause temporary voltage drops). Just read the data and press "Back." how+to+use+secret+codes+on+samsung+galaxy+a7+2+work