Unhappy Help me : Samsung S4 E300K FW 4.3 error imei 00000/01 !!!

S4 E300K Samsung phone I have updated many of the Stock rom 4.3 but still imei is 0000000/01. can anyone help me with Dum. thanks very much please. Who can file "baseband" file original or "Modem" for me please. I just found the file file. tar. can not find the file small file containing PDA, CSC, MODEM. respectfully request everyone to help.