Windows

1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
2. Type Get-FileHash iPhone_4.7_14.2_18B92_Restore.ipsw -Algorithm SHA1
3. The output of the command should match the following checksum: 459364ab61414b63eb41bf940d63756999b4f23b. If it doesn't, you may need to redownload the file.

macOS

1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
2. Type openssl sha1 iPhone_4.7_14.2_18B92_Restore.ipsw
3. The output of the command should match the following checksum: 459364ab61414b63eb41bf940d63756999b4f23b. If it doesn't, you may need to redownload the file.

Linux

1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
2. Type openssl sha1 iPhone_4.7_14.2_18B92_Restore.ipsw
3. The output of the command should match the following checksum: 459364ab61414b63eb41bf940d63756999b4f23b. If it doesn't, you may need to redownload the file.

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Checksums

SHA256sum	fdec486d498465a6ccb4ec004215fb95ae996b5b1f3ccc8171b00aa1612207fd
MD5sum	ee915cdbda3cb121d89e75b7b65b113b
SHA1sum	459364ab61414b63eb41bf940d63756999b4f23b

Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 14.2 includes the following improvements for your iPhone:

• Over 100 new emoji, including animals, food, faces, household objects, musical instruments, gender-inclusive emoji, and more
• Eight new wallpapers in both light and dark mode versions
• Magnifier can detect people nearby, and report their distance using the LiDAR sensor included in iPhone 12 Pro and iPhone 12 Pro Max
• Support for iPhone 12 Leather Sleeve with MagSafe
• Optimized battery charging for AirPods to slow the rate of battery aging by reducing the time your AirPods spends fully charged
• Headphone audio level notifications to alert you when audio level could impact your hearing
• New AirPlay controls to stream entertainment throughout your home
• Intercom support with HomePod and HomePod mini using iPhone, iPad, Apple Watch, AirPods, and CarPlay
• Ability to connect HomePod to Apple TV 4K for stereo, surround sound, and Dolby Atmos audio
• Option to provide statistics about Exposure Notifications, without identifying you, to participating Public Health Authorities

This release also fixes the following issues:

• Apps could be out of order on the Home Screen dock
• Camera viewfinder may appear black when launched
• The keyboard on the Lock Screen could miss touches when trying to enter the passcode
• Reminders could default to times in the past
• Photos widget may not display content
• Weather widget could display the high temperature in Celsius when set to Fahrenheit
• Next-hour precipitation chart description in Weather could incorrectly indicate when precipitation stops
• Voice Memos recordings are interrupted by incoming calls
• The screen could be black during Netflix video playback
• Apple Cash could fail to send or receive money when asked via Siri
• Apple Watch app may unexpectedly close when opened
• Workout GPS routes or Health data are prevented from syncing between Apple Watch and iPhone for some users
• Audio is incorrectly labeled as "Not Playing” in the CarPlay Dashboard
• Devices could be prevented from charging wirelessly
• Exposure Notifications is disabled when restoring iPhone from iCloud Backup or transferring data to a new iPhone using iPhone Migration

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222