iOS 12.3.1 (16F203) for iPhone 6s

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✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

Release DateMay 24, 2019
Upload DateMay 22, 2019
FilenameiPhone_4.7_12.3.1_16F203_Restore.ipsw
Filesize3.0 GiB
SHA256sum70e51aa0e3caa1cf5f41d5fbfba4c2042312ce6744bf5513995d3507d012a313
MD5sum1ad6e98e23966a3650a3c27a92aae0b1
SHA1sumd94c3d41c1b2b2541cd7ef7b4ebe16e60ac51266
IdentifieriPhone8,1
Download (3.0 GiB)

iOS 12.3.1 Release Notes

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

iOS 12.3.1 includes bug fixes for your iPhone and iPad. This update:

  • Fixes an issue that could prevent making or receiving VoLTE calls

  • Fixes issues in Messages that could cause messages from unknown senders to appear in your conversation list even though Filter Unknown Senders is enabled

  • Fixes an issue that could prevent the Report Junk link from appearing in Messages threads from unknown senders

For information on the security content of this update, please visit this website: https://support.apple.com/kb/HT201222

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