Uhm, did you delete ";" before the line "dmnt_cheats_enabled_by_default = u8!0x1"?
yeah I did:
; Disable uploading error reports to Nintendo
[eupld]
; upload_enabled = u8!0x0
; Control whether RO should ease its validation of NROs.
; (note: this is normally not necessary, and ips patches can be used.)
[ro]
; ease_nro_restriction = u8!0x0
; Atmosphere custom settings
[atmosphere]
; Reboot from fatal automatically after some number of milliseconds.
; If field is not present or 0, fatal will wait indefinitely for user input.
; fatal_auto_reboot_interval = u64!0x0
; Make the power menu's "reboot" button reboot to payload.
; Set to "normal" for normal reboot, "rcm" for rcm reboot.
; power_menu_reboot_function = str!payload
; Controls whether dmnt cheats should be toggled on or off by
; default. 1 = toggled on by default, 0 = toggled off by default.
dmnt_cheats_enabled_by_default = u8!0x0
; Controls whether dmnt should always save cheat toggle state
; for restoration on new game launch. 1 = always save toggles,
; 0 = only save toggles if toggle file exists.
; dmnt_always_save_cheat_toggles = u8!0x0
; Enable writing to BIS partitions for HBL.
; This is probably undesirable for normal usage.
; enable_hbl_bis_write = u8!0x0
; Enable reading the CAL0 partition for HBL.
; This is probably undesirable for normal usage.
; enable_hbl_cal_read = u8!0x0
; Controls whether fs.mitm should redirect save files
; to directories on the sd card.
; 0 = Do not redirect, 1 = Redirect.
; NOTE: EXPERIMENTAL
; If you do not know what you are doing, do not touch this yet.
; fsmitm_redirect_saves_to_sd = u8!0x0
; Controls whether to enable the deprecated hid mitm
; to fix compatibility with old homebrew.
; 0 = Do not enable, 1 = Enable.
; Please note this setting may be removed in a
; future release of Atmosphere.
; enable_deprecated_hid_mitm = u8!0x0
[hbloader]
; Controls the size of the homebrew heap when running as applet.
; If set to zero, all available applet memory is used as heap.
; The default is zero.
; applet_heap_size = u64!0x0
; Controls the amount of memory to reserve when running as applet
; for usage by other applets. This setting has no effect if
; applet_heap_size is non-zero. The default is 0x8600000.
; applet_heap_reservation_size = u64!0x8600000
