Firmware Files

There are many different files contains in an IPSW firmware file.

IPSW File Formats

These are the various file formats used to store payloads inside an IPSW file.

• IPSW File
• Apple Disk Image (DMG)
• Apple Property List (PLIST)
• 8900
• IMG2
• IMG3
• IMG4
• iBoot Image

IPSW Files

Each file contained in an IPSW file has a specific purpose. Some are firmwares for the various chips in the device, while others are images ("glyphs").

• Root Filesystem
• Update and Restore Ramdisks
• ACI Bluetooth Firmware
• ACI Wi-Fi Firmware
• ADC Petra (image signal processor)
• Apple Neural Engine
• ANSF
• "Always On Processor" Firmware
• Apple Audio/Video Encoder
• Apple Logo
• Apple Maggie (vibration motor controller (Lattice iCE5LP4K-SWG36))
• ARM Firmware (GPU scheduler/command stream processor)
• Audio Codec
• Audio DSP Firmware
• Battery Charging
• Battery Full
• Battery Low
• DALI
• DCP (Display Coprocessor)
• Device Tree
• Glyph Charging
• Glyph Plugin
• Haptic Assets
• Homer Firmware
• iBEC (iBoot Epoch Change)
• iBoot (iBoot stage 2)
• iBoot Data
• iBSS (iBoot Single Stage)
• ISP Firmware
• Kernelcache
• Leap Haptics
• Liquid Damage Detection
• LLB (Low Level Bootloader; iBoot stage 1)
• Low Power Mode
• Low Power "Find My" Mode
• M Connector
• Multitouch Firmware
• Need Service
• Power Management Processor
• RANS
• Recovery Mode ("Connect to iTunes" graphic)
• RTP
• Secure Enclave Processor Firmware (SEP firmware)
• SmartIO Firmware
• Wireless Charging Controller
• What's the Firmware? (WTF)