--- layout: devinfo app: TWL_EVA_PREWRITE altname: PREWRITE category: [TWL EVA] sequence: TRUE redirect_from: /dsidev/twl_eva_prewrite.html group: true --- This is most likely a test to see if HWInfo and the final firmware can be written or not. PREWRITE creates and signs HWInfo just like PREPARE does, though PREWRITE seems to have extra steps such as backing up/restoring logs during formatting. PREWRITE writes the following log entry which is not found in any DSi logs. This means PREWRITE is likely not used.
`0,PWRITE,OK,1.3, , , ,S/N=,`
This is the PREWRITE function list:

    09-07	RTC FAT TO RAW
    31-12	LOG BACKUP TO MMEM
    12-07	TP CALDATA TO MMEM
    28-01	FAT NORMAL FORMAT
    31-14	LOG RESTORE FROM MMEM
    28-08	MAKE TWLCFG.dat
    29-06	INIT HWINFO_S.dat
    29-07	INIT HWINFO_N.dat
    09-06	RTC RAW TO FAT
    12-08	TP CALDATA TO FAT
    28-07	CLEAR NOR DATA
    28-04	WRITE SDMC-LNC
    28-09	IMPORT TAD FILES
    28-05	LOAD MENU LAUNCHER
    28-06	WRITE MENU LAUNCHER
    31-15	WRITE PREWRITE LOG