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# hekate - Nyx
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Custom Graphical Nintendo Switch bootloader, firmware patcher, tools, and many more.
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## Bootloader folders and files
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| Folder/File | Description |
| ------------------------ | --------------------------------------------------------------------- |
| bootloader | Main folder. |
| \|__ bootlogo.bmp | It is used when custom is on and no logopath found. Can be skipped. |
| \|__ hekate_ipl.ini | Main bootloader configuration and boot entries. |
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| \|__ patches.ini | Add external patches. Can be skipped. A template can be found [here ](./res/patches_template.ini ) |
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| \|__ update.bin | If newer, it is loaded at boot. For modchips. Auto updated. Can be skipped. |
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| bootloader/ini/ | For individual inis. 'More configs...' menu. Autoboot is supported. |
| bootloader/res/ | Nyx user resources. Icons and more. |
| \|__ background.bmp | Nyx - custom background. |
| \|__ icon_switch.bmp | Nyx - Default icon for CFWs. |
| \|__ icon_payload.bmp | Nyx - Default icon for Payloads. |
| \|__ icon_lakka.bmp | Nyx - Default icon for Lakka. |
| bootloader/sys/ | For system modules. |
| \|__ emummc.kipm | emuMMC KIP1 module. Important! |
| \|__ libsys_lp0.bso | LP0 (sleep mode) module. Important! |
| \|__ libsys_minerva.bso | Minerva Training Cell. Used for DRAM Frequency training. Important! |
| \|__ nyx.bin | Nyx - Our GUI. Important! |
| \|__ res.pak | Nyx resources package. Important! |
| bootloader/screenshots/ | Folder where Nyx screenshots are saved |
| bootloader/payloads/ | For payloads. 'Payloads...' menu. Autoboot only supported by including them into an ini. All CFW bootloaders, tools, Linux payloads are supported. |
| bootloader/libtools/ | Future reserved |
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| sept | Sept folder. This must always get updated via the Atmosphère release zip. Needed for tools and booting HOS on 7.0.0 and up. Unused for booting HOS if `fss0=` key is defined. |
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**Note**: Sept files for booting 7.0.0 and up are expected at /sept folder at root of sd card.
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## Bootloader configuration
The bootloader can be configured via 'bootloader/hekate_ipl.ini' (if it is present on the SD card). Each ini section represents a boot entry, except for the special section 'config' that controls the global configuration.
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There are four possible type of entries. "**[ ]**": Boot entry, "**{ }**": Caption, "**#**": Comment, "*newline*": .ini cosmetic newline.
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You can find a template [Here ](./res/hekate_ipl_template.ini )
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### Global Configuration keys/values when boot entry is **config**:
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| Config option | Description |
| ------------------ | ---------------------------------------------------------- |
| autoboot=0 | 0: Disable, #: Boot entry number to auto boot. |
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| autoboot_list=0 | 0: Read `autoboot` boot entry from hekate_ipl.ini, 1: Read from ini folder (ini files are ASCII ordered). |
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| bootwait=3 | 0: Disable (It also disables bootlogo. Having **VOL-** pressed since injection goes to menu.), #: Time to wait for **VOL-** to enter menu. |
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| autohosoff=1 | 0: Disable, 1: If woke up from HOS via an RTC alarm, shows logo, then powers off completely, 2: No logo, immediately powers off.|
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| autonogc=1 | 0: Disable, 1: Automatically applies nogc patch if unburnt fuses found and a >= 4.0.0 HOS is booted. |
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| bootprotect=0 | 0: Disable, 1: Protect bootloader folder from being corrupted by disallowing reading or editing in HOS. |
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| updater2p=0 | 0: Disable, 1: Force updates (if needed) the reboot2payload binary to be hekate. |
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| backlight=100 | Screen backlight level. 0-255. |
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### Nyx Global Configuration keys/values for (nyx.ini):
| Config option | Description |
| ------------------ | ---------------------------------------------------------- |
| themecolor=167 | Sets Nyx color of text highlights. |
| timeoff=100 | Sets time offset in HEX. Must be in HOS epoch format |
| homescreen=0 | Sets home screen. 0: Home menu, 1: All configs (merges Launch and More configs), 2: Launch, 3: More Configs. |
| verification=1 | 0: Disable Backup/Restore verification, 1: Sparse (block based, fast and mostly reliable), 2: Full (sha256 based, slow and 100% reliable). |
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| umsemmcrw=0 | 1: eMMC/emuMMC UMS will be mounted as writable by default. |
| jcdisable=0 | 1: Disables Joycon driver completely. |
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| newpowersave=1 | 0: Timer based, 1: DRAM frequency based (Better). Use 0 if Nyx hangs. |
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### Boot entry key/value combinations:
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| Config option | Description |
| ---------------------- | ---------------------------------------------------------- |
| warmboot={SD path} | Replaces the warmboot binary |
| secmon={SD path} | Replaces the security monitor binary |
| kernel={SD path} | Replaces the kernel binary |
| kip1={SD path} | Replaces/Adds kernel initial process. Multiple can be set. |
| kip1={SD folder}/* | Loads every .kip/.kip1 inside a folder. Compatible with single kip1 keys. |
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| fss0={SD path} | Takes a fusee-secondary binary and `extracts` all needed parts from it. kips, exosphere, warmboot and sept. |
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| fss0experimental=1 | Enables loading of experimental content from a FSS0 storage |
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| exofatal={SD path} | Replaces the exosphere fatal binary for Mariko |
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| kip1patch=patchname | Enables a kip1 patch. Specify with multiple lines and/or as CSV. If not found, an error will show up |
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| fullsvcperm=1 | Disables SVC verification (full services permission) |
| debugmode=1 | Enables Debug mode. Obsolete when used with exosphere as secmon. |
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| atmosphere=1 | Enables Atmosphère patching. Not needed when `fss0` is used. |
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| emupath={SD folder} | Forces emuMMC to use the selected one. (=emuMMC/RAW1, =emuMMC/SD00, etc). emuMMC must be created by hekate because it uses the raw_based/file_based files. |
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| emummcforce=1 | Forces the use of emuMMC. If emummc.ini is disabled or not found, then it causes an error. |
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| emummc_force_disable=1 | Disables emuMMC, if it's enabled. |
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| stock=1 | Disables unneeded kernel patching and CFW kips when running stock or semi-stock. `If emuMMC is enabled, emummc_force_disabled=1` is required. emuMMC is not supported on stock. If additional KIPs are needed other than OFW's, you can define them with `kip1` key. No kip should be used that relies on Atmosphère patching, because it will hang. If `NOGC` is needed, use `kip1patch=nogc` . |
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| id=idname | Identifies boot entry for forced boot via id. Max 7 chars. |
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| payload={SD path} | Payload launching. Tools, Linux, CFW bootloaders, etc. |
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| logopath={SD path} | If no logopath, `bootloader/bootlogo.bmp` will be used if exists. If logopath exists, it will load the specified bitmap. |
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| icon={SD path} | Force Nyx to use the icon defined here. If this is not found, it will check for a bmp named as the boot entry ([Test 2] -> `bootloader/res/Test 2.bmp` ). Otherwise default will be used. |
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### Boot entry key/value Exosphère combinations:
| Config option | Description |
| ---------------------- | ---------------------------------------------------------- |
| nouserexceptions=1 | Disables usermode exception handlers when paired with Exosphère. |
| userpmu=1 | Enables user access to PMU when paired with Exosphère. |
| cal0blank=1 | Overrides Exosphère config `blank_prodinfo_{sys/emu}mmc` . If that key doesn't exist, `exosphere.ini` will be used. |
| cal0writesys=1 | Overrides Exosphère config `allow_writing_to_cal_sysmmc` . If that key doesn't exist, `exosphere.ini` will be used. |
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**Note1**: When using the wildcard (`/*`) with `kip1` you can still use the normal `kip1` after that to load extra single kips.
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**Note2**: When using FSS0 it parses exosphere, warmboot and all core kips. You can override the first 2 by using `secmon` /`warmboot` after defining `fss0` .
You can define `kip1` to load an extra kip or many via the wildcard (`/*`) usage.
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**Warning**: Never define *fss0 core* kips when using `fss0` and make sure that the folder (when using `/*` ), does not include them.
This is in case the kips are incompatible between them. If compatible, you can override `fss0` kips with no issues (useful for testing with intermediate kip changes).
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### Payload storage:
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hekate has a boot storage in the binary that helps it configure it outside of BPMP enviroment:
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| Offset / Name | Description |
| ----------------------- | ----------------------------------------------------------------- |
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| '0x94' boot_cfg | bit0: `Force AutoBoot` , bit1: `Show launch log` , bit2: `Boot from ID` , bit3: `Boot to emuMMC` , bit7: `sept run` . |
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| '0x95' autoboot | If `Force AutoBoot` : 0: Force go to menu, else boot that entry. |
| '0x96' autoboot_list | If `Force AutoBoot` and `autoboot` then it boots from ini folder. |
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| '0x97' extra_cfg | When menu is forced: bit5: `Run UMS` , bit7: `Run Dump pkg1/2` . |
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| '0x98' xt_str[128] | Depends on the set cfg bits. |
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| '0x98' ums[1] | When `Run UMS` is set, it will launch the selected UMS. 0: SD, 1: eMMC BOOT0, 2: eMMC BOOT1, 3: eMMC GPP, 4: emuMMC BOOT0, 5: emuMMC BOOT1, 6: emuMMC GPP, |
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| '0x98' id[8] | When `Boot from ID` is set, it will search all inis automatically and find the boot entry with that id and boot it. Must be NULL terminated. |
| '0xA0' emummc_path[120] | When `Boot to emuMMC` is set, it will override the current emuMMC (boot entry or emummc.ini). Must be NULL terminated. |
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If the main .ini is not found, it is created on the first hekate boot.
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```
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hekate (c) 2018, naehrwert, st4rk.
(c) 2018-2020, CTCaer.
Nyx GUI (c) 2019-2020, CTCaer.
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Thanks to: derrek, nedwill, plutoo, shuffle2, smea, thexyz, yellows8.
Greetings to: fincs, hexkyz, SciresM, Shiny Quagsire, WinterMute.
Open source and free packages used:
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- FatFs R0.13a, Copyright (c) 2017, ChaN
- bcl-1.2.0, Copyright (c) 2003-2006, Marcus Geelnard
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- Atmosphère (Exosphere types/panic, prc id kernel patches),
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Copyright (c) 2018-2019, Atmosphère-NX
- elfload, Copyright (c) 2014 Owen Shepherd, Copyright (c) 2018 M4xw
- Littlev Graphics Library, Copyright (c) 2016 Gabor Kiss-Vamosi
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```
