imei slotA dual-SIM phone typically has two unique IMEI numbers: IMEI 1 and IMEI 2. Each number corresponds to a specific SIM slot — IMEI 1 for SIM slot 1 and IMEI 2 for SIM slot 2. TheseI see two IMEI numbers on my phone; do I need to provide both for exchange? No, you need to enter only one of them into the IMEI number field.