Before you spend hours trying to change your ZTE MC801A’s IMEI, consider the following:
Since the MC801A is built on the chipset, it can often be accessed through Qualcomm diagnostic tools.
Replace \x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15 with the new IMEI in hexadecimal format. For example, if you want to change the IMEI to 123456789012345 , you would use the following command: echo -ne "\x31\x32\x33\x34\x35\x36\x37\x38\x39\x30\x31\x32\x33\x34\x35" > /dev/block/mmcblk0p1
