Start by powering off your Motorola Moto G30 completely. Once the device is off, use a SIM card eject tool or a paperclip to remove the SIM tray from the side of the phone.

Using a heat gun or hairdryer, gently heat the edges of the phone's screen to soften the adhesive. Move the heat source in a circular motion and avoid overheating one spot to prevent damage to the internal components.

Attach a suction cup to the lower part of the screen and pull gently to create a small gap. Insert a plastic opening tool into the gap and carefully slide it around the edges to release the adhesive. Proceed slowly to avoid cracking the screen further.

Once the screen is loose, open the device slightly and locate the battery and screen connectors. Use a Phillips #00 screwdriver to remove the screws securing the connector bracket. Gently lift the bracket and disconnect the battery and screen connectors using a pair of tweezers.

After disconnecting the connectors, remove the old screen completely. Be cautious of any remaining adhesive or fragments of glass that may be attached. Clean the frame of the phone with a cloth to ensure it's free of debris and old adhesive.

Align the new screen with the frame of the phone. Connect the screen and battery connectors to the motherboard, ensuring a snug fit. Replace the connector bracket and secure it with the screws.

Apply adhesive strips or double-sided tape around the edges of the frame. Carefully place the new screen onto the frame, pressing gently to ensure it adheres well. Use a plastic tool to press down the edges and secure the screen in place.

Reinsert the SIM card tray into the device. Power on your Motorola Moto G30 to test the new screen's functionality. Ensure the touch screen is responsive and the display is working correctly.