Nec N342i hang
 

Hello.

I have one n342i that hangs after about 20s from power on. I tried a lot of codes from polar cracked, recalculated from polar cracked philips 586 codes, and aggty****** online calc codes - with no positive result. Just one code from the online calc says "executed": NCKKN 2: **00013*7735131331535379# - which is the simlock repair code; any other calculated code is not good and says: "Sim block mep failed" or "password not valid" . What should I try next?
Any help appreciated.
BR

use commercial soft like furious..