I believe that new flash id exists now.
got 2 samsung s5230 from Phones 4 U (UK) which were locked to vodafone. They went to dead when I tried to flash them with MultiLoader_V5.62.exe in order to chanage language. I noticed actually boot files were flashed sucesfully. but cant go to download mode any more and nothing happens when you press power button.
Tried to fix them via z3x and spt* both failed. tried GT-S5230_UART_Downloader.exe and BCM213x1_Downloader_v0.88(C).exe with different interface (infinity box* z3x* nspro* ustpro2* vygis )* no luck.
Got 3rd samsung s5230 from Phones 4 U in the morning and working on it now.