Use the serial number when contacting the manufacturer. The company that made the phone hardware gave your device its own serial number. This is usually just labeled “Serial” wherever it is found. Use the mobile ID when contacting the phone service company. Each wireless device with phone capability also has a second number, unique among all phones in the world. This will be labeled IMEI, MEID, or ESN.
Convert from MEID hex to MEID dec. The MEID number can be displayed in two different formats: a 14-digit “hexadecimal” MEID and an 18-digit “decimal” MEID. If you can only find one and your service provider asks for the other format, search online for an “MEID converter” to transform it. Visit your dial screen, where you enter phone numbers to call. This will work for most smartphones, but not for most non-smartphones. If the code does not appear within a few seconds, press the call button. If the serial code still doesn’t appear, move on to the next step.