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unleashed-firmware/documentation/KeyCombo.md
Albert Kharisov 84410c83b5
[FL-2183] [FL-2209] Dolphin Deeds, Level up, assets generation, refactoring (#965) 
* Desktop: cleanup headers
* Get loader pubsub via record
* [FL-2183] Dolphin refactoring 2022.01
* Restruct animations assets structure
* Rename assets
* Cleanup headers
* Update Recording animation
* Add BadBattery animation
* Provide loader's pubsub via record
* Fix load/unload animations
* Scripts: add flipper format support, initial dolphin packager rework. Assets: internal and external dolphin.
* Sync internal meta.txt and manifest.txt
* Reorder, rename dolphin assets
* Split essential generated assets
* Add ReadMe for dolphin assets
* Separate essential blocking animations
* Scripts: full dolphin validation before packaging
* Assets, Scripts: dolphin external resources packer
* Github: update codeowners
* Scripts: proper slots handling in dolphin animation meta
* Scripts: correct frames enumeration and fix compiled assets.
* [FL-2209] Add Dolphin Deeds points and many more
* Remove excess frame_rate
* Change dolphin assets directory
* Scripts: add internal resource support to dolphin compiler
* Scripts: add internal assets generation, renaming
* Scripts: correct assert, renaming
* Code cleanup, documentation, fixes
* Update Levelup animations
* Rename essential -> blocking
* Fix Unlocked hint
* Scripts: rewrite Templite compiller, replace regexps with token parser, split block types into code and variable blocks. Update dolphin templates.
* Documentation: add key combos description and use information
* Scripts: cleanup templit, more debug info and add dev comment

Co-authored-by: あく <alleteam@gmail.com>
2022-01-29 12:20:41 +03:00

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Key Combos

There are times when your flipper feels blue and don't respond to your commands. In that case you may find this guide useful.

Basic Combos

Hardware Reset

  • Press LEFT and BACK and hold for couple seconds
  • Release LEFT and BACK

This combo performs hardware reset by pulling MCU reset line down. Main components involved: Keys -> DD8(NC7SZ32M5X, OR-gate) -> DD1(STM32WB55, MCU)

There is 1 case when it's not working:

  • MCU debug block is active and holding reset line from inside.

Hardware Power Reset

  • Disconnect USB and any external power supplies
  • Disconnect USB once again
  • Make sure that you've disconnected USB and any external power supplies
  • Press BACK and hold for 30 seconds (Only will work with USB Disconnected)
  • If you have not disconnected USB, then disconnect USB and repeat previous step
  • Release BACK key

This combo performs reset by switching SYS power line off and then on. Main components involved: Keys -> DD6(bq25896, charger)

There is 1 case when it's not working:

  • Power supply is connected to USB or 5V_ext

Software DFU

  • Press LEFT on boot to enter DFU with flipper boot-loader

There is 1 case when it's not working:

  • Flipper Boot-loader is damaged or absent

Hardware DFU

  • Press OK on boot to enter DFU with ST boot-loader

There is 1 case when it's not working:

  • Option Bytes are damaged or set to ignore OK key

DFU Combos

Hardware Reset + Software DFU

  • Press LEFT and BACK and hold for couple seconds
  • Release BACK
  • Device will enter DFU with indication (Blue LED + DFU Screen)
  • Release LEFT

This combo performs hardware reset by pulling MCU reset line down. Then LEFT key indicates to boot-loader that DFU mode requested.

There are 2 cases when it's not working:

  • MCU debug block is active and holding reset line from inside
  • Flipper Boot-loader is damaged or absent

Hardware Reset + Hardware DFU

  • Press LEFT and BACK and OK and hold for couple seconds
  • Release BACK and LEFT
  • Device will enter DFU without indication

This combo performs hardware reset by pulling MCU reset line down. Then OK key forces MCU to load internal boot-loader.

There are 2 cases when it's not working:

  • MCU debug block is active and holding reset line from inside
  • Option Bytes are damaged or set to ignore OK key

Hardware Power Reset + Software DFU

  • Disconnect USB and any external power supplies
  • Press BACK and LEFT for 30 seconds
  • Release BACK
  • Device will enter DFU with indication (Blue LED + DFU Screen)
  • Release LEFT
  • Plug USB

This combo performs reset by switching SYS power line off and then on. Then LEFT key indicates to boot-loader that DFU mode requested.

There are 2 cases when it's not working:

  • Power supply is connected to USB or 5V_ext
  • Flipper Boot-loader is damaged or absent

Hardware Power Reset + Hardware DFU

  • Disconnect USB and any external power supplies
  • Press BACK and OK and hold for 30 seconds
  • Release BACK and OK
  • Device will enter DFU without indication
  • Plug USB

This combo performs reset by switching SYS power line off and then on. Then OK key forces MCU to load internal boot-loader.

There are 2 cases when it's not working:

  • Power supply is connected to USB or 5V_ext
  • Option Bytes are damaged or set to ignore OK key

Alternative ways to recover your device

If none of the described methods were useful:

  • Ensure battery charged
  • Disconnect battery and connect again (Requires disassembly)
  • Try to Flash device with ST-Link or other programmer that support SWD

If you still here and your device is not working: it's not software issue.