Press the following on your mobile *#06#and the International Mobile Equipment Identity (IMEI) number appears check the 7th and 8th digits 1 2 3 4 5 6 7 th 8 th 9 10 11 12 13 1415Phone serial no.xxx xxx??xxxxxxx IF the 7th & 8th digits are 02 or 20 that mean it was Assembled in Emirates which is very Bad quality IF the 7th & 8th digits are 08 or 80 that mean it' s manufactured in Germany which is not bad IF the 7th & 8th digits are 01 or 10 that mean it's manufactured in Finland which is Good IF the 7th & 8th digits are 00 that mean it was manufactured in original factory which is the best Mobile Quality ... IF the 7th & 8th digits are 13 that mean it was Assembled on Azerbaijan which is very Bad quality and very dangerous for health!!!