maxon mn 1(mx 3204)

[wild]

i have maxon mn1 (mx 3204). when i put sim card the phone says "insert sim card". i think sim card IC 939 is not working ... i search this IC but i cant find , anybody know what equivalent / (the same like) IC for this type 939????<br />thanks<br />best regards

[alpha]

Hi<br /> Try to change IC 1555 (is near sim reader )<br />this IC is found in Bosch 607, 509.

Try this . working !!!