different volts in new sims 3v older sims have a higher voltage
chris
November 2008
Ok use this and it will fix it:
http://sghe900.50webs.com/flashings3.html
Get a new firmware then follow the instructions (to get optiflash - http://sghe900.50webs.com/software.html)
Let's just say..
March 2008
i just dont get it.... my phone is unlocked but... it doesent read my sim!! it it says "insert sim card" but it works with the old sim's and any other network!!! does anyone have a anwser.