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Home / Beta Firmware / iOS / 19F77

Release Notes

iOS 15.5 includes the following improvements and bug fixes:

  • Wallet now enables Apple Cash customers to send and request money from their Apple Cash card
  • Apple Podcasts includes a new setting to limit episodes stored on your iPhone and automatically delete older ones
  • Fixes an issue where home automations, triggered by people arriving or leaving, may fail

Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222

Download IPSW

How to Install

iTunes / Finder

macOS & Windows
  1. Download the .ipsw file to your computer.
  2. Connect your iPhone9,3 to your computer via USB.
  3. Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina+) and select your device.
  4. Hold Option ⌘ (Mac) or Shift (Windows) and click Check for Update or Restore iPhone…
  5. Select the downloaded .ipsw file and follow the on‑screen instructions.
  6. Wait for the process to complete — do not disconnect the device.
Restoring will erase all data on the device. Back up with iCloud or Finder/iTunes before proceeding.

DFU Mode

Recovery tip

If your device is stuck in a boot loop or not recognised by iTunes/Finder, enter DFU (Device Firmware Update) mode first, then select the .ipsw file as normal.

iPhone 8 / X and later

  1. Quickly press & release Volume Up
  2. Quickly press & release Volume Down
  3. Hold Side button until screen goes black
  4. Hold Side + Volume Down for 5 s
  5. Release Side, keep holding Volume Down for 5 more seconds
  6. Black screen = DFU active

iPhone 7 / 7 Plus

  1. Hold Sleep/Wake + Volume Down for 8 s
  2. Release Sleep/Wake, keep holding Volume Down for 5 s
  3. Black screen = DFU active

iPhone 6s and earlier

  1. Hold Sleep/Wake + Home for 8 s
  2. Release Sleep/Wake, keep holding Home for 5 s
  3. Black screen = DFU active

SHSH Blobs

Unsigned — too late to save

SHSH blobs are personalised cryptographic tickets Apple issues for a specific device and firmware. Saving blobs for a currently signed build lets you restore to it later using tools like futurerestore. iOS 15.5 RC is no longer signed.

blobsaver GUI

A free open-source GUI app for macOS, Windows and Linux. Connect your device and save blobs with one click.

Download blobsaver
tsschecker CLI

Command-line tool by tihmstar. Requires your device ECID and board config.

tsschecker -d iPhone9,3 --buildid 19F77 -e [ECID] --save

Other Devices with 19F77

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