Insert the battery, ensuring the gold contacts align with the phone's connectors, and snap the back cover back into place. : Hold the Power/End key to turn the device on.
The Samsung Star 3 Duos (GT-S5222) is a classic dual-SIM feature phone known for its compact design and physical home button. Essential User Guide (Instruktsiia) samsung star 3 duos instruktsiia
If the phone freezes, you can perform a soft reset by removing and re-inserting the battery. Insert the battery, ensuring the gold contacts align