Why doesn’t the Xiaomi 15 display a MEID when checking phone information using * # 06 # ?

The Xiaomi 15 does not support CDMA networks, which is why it does not display a MEID (Mobile Equipment Identifier) when you check the phone information. MEID is a unique identifier assigned to CDMA phones, primarily used by CDMA carriers for network identification. Since the Xiaomi 15 operates on GSM and other non-CDMA networks, it uses the IMEI (International Mobile Equipment Identity) instead. The IMEI is a unique identifier for GSM, WCDMA, and LTE phones and is used globally for network and security purposes.
In summary, it is perfectly normal for the Xiaomi 15 to show only the IMEI and not the MEID, as it does not support CDMA technology.