: Shows real-time battery health, voltage, and capacity details. *#9900#
The Samsung Calculator app (pre-installed on Galaxy devices) has a few "secret" behaviors that are built-in but not immediately obvious. samsung calculator secret codes
Displays the current PDA, CSC, and MODEM firmware versions installed on the device. 3. Advanced Connectivity & Network Codes : Shows real-time battery health, voltage, and capacity
While some "calculator codes" refer to hidden app menus, most classic Samsung "secret codes" are entered via the . These codes are crucial for hardware verification before buying a second-hand device. : Shows real-time battery health