iOS 15.7.3 ― Bug Fixes, Changes, and Improvements

[Banglazed]

iOS 15.7.3

Developer Release Date ― January 18, 2023
Public Release Date ― January 23, 2023
Build Number ― 19H307
Darwin Kernel Version ―

This update provides important security updates and is recommended for all users.

iOS 15.6 RC Release Notes

New Features & Changes
New Issues
Remaining Issues
Resolved Issues

Additional Notes

• Developers and testers can report bugs using the Feedback app. If you don't have the public or developer profiles installed, you can still open the app by entering the following URL in Safari:
  

  applefeedback://

• iOS Release Notes
• iOS Beta Release Notes
• iOS Security Updates

Spoiler: Modem Firmware

• Qualcomm iPhone 7/7 Plus: 9.01.00
• Intel iPhone 7/7 Plus: 6.01.01
• iPhone SE (1st gen): 11.01.02
• iPhone 6S/6S Plus: 9.61.00

Spoiler: Carrier Version

United States

• Verizon - 50.0.1
• Visible (MVNO Verizon) 46.0
• Verizon (iPad) - 41.0
• T-Mobile - 50.0.2
• AT&T - 50.0.2
• FirstNet - 50.0.1
• FirstNet (iPad) - 41.7.6
• Cricket - 40.5.2
• MetroPCS - 50.0.1
• U.S. Cellular - 46.7.24
• Sprint - 40.0
• TracFone/Straight Talk/Walmart Family Mobile - 50.0.1
• Xfinity Mobile 45

Australia

• Optus - 50.0.1
• Telstra - 50.0.1
• Vodafone AU - 50.0

Belgium

• BASE - 33.0
• Orange B - 32.5.7
• Proximus - 45.0
• Telenet - 44.1

Canada

• Videotron - 50.0
• Rogers - 41.0
• Fido - 49.0
• Bell - 48.5
• Telus - 50.0
• Freedom/Shaw Mobile - 49.0
• Fizz - 50.0
• Virgin Mobile - 50.0

Denmark

• 3 DK - 46.7.11
• TDC 50.0

France

• Bouygues Telecom - 40.0
• Orange France - 50.0

Germany

• Vodafone.de - 48.5
• Telekom.de - 50.0
• O2-DE - 48.5.1

Greece:

• Cosmote - 38.0

Guatemala

• TIGO GT - 49.0

India

• Airtel - 49.0
• Jio - 49.0
• Vi India (Vodafone Idea) - 50.0

Ireland

• Eir - 33.5
• Vodafone IE - 38.0

Mexico

• Mexico - Telcel - 50.0

Morocco

• Orange - 50.0

Netherlands

• KPN - 50.0
• Vodafone NL - 45.0

Poland

• T-Mobile -
• Orange - 49.6.3 (Voice & SMS)
• Play - 31.0

Portugal

• Vodafone P - 40.0

Southeast Asia

• Singapore Singtel -
• Philippines Globe - 46.0
• Philippines Globe (iPad) - 38.0
• Philippines Smart - 44.0
• Thailand AIS -
• Malaysia Umobile - 33.0
• Malaysia Maxis -33.0
• Malaysia Digi -
• Malaysia celcom -
• Hong Kong - 32.0
• Taiwan -

Sweden

• Comviq -
• Tre - 31.0

Switzerland

• Salt - 45.0
• Swisscom - 45.0

Turkey

• Turkcell (Lifecell) - 36.5.5
• Vodafone TR - 32.0
• Turk Telekom - 32.0

United Kingdom

• EE - 50.0
• BT-UK (MVNO on EE)- 50.0.1
• Three - 50.1
• iD Mobile (MVNO on Three) - 36.5.4
• O2-UK - 50.0
• Giffgaff (O2 MVNO) - 41.0
• Vodafone UK - 50.0
• Virgin Mobile (EE MVNO) - 39.5
• Lebara (Vodafone MVNO) - 50.0

Spain

• Orange ES - 50.0

Other

• Docomo - 32.5.10
• AlwaysOnline -

 

[DuckMe]

15.7.3 is likely not applicable to iPhone 8 and later models.

For these devices, you can still get 15.7.1 public release via delayed OTA, or 15.7.2 RC via beta + delayed OTA profiles now.


If 15.7.3 can be installed on iPhone 8 and later models, I will post a guide after verification.

EDIT:
After verification by many members, Apple does not prepare iOS 15.7.3 firmware for iPhone 8 and later models, so there is no way to install 15.7.3 to these models, 15.7.2 is still the last iOS 15 they can get now.


EDIT2:
The iPhone 8 and iPhone 8 Plus can install iOS 15.7.3 and any version of iOS 15 after that through an imperfect workaround (read more). Because the iPhone 8 series and the iPhone 7 series share the same firmware, just not signed by Apple.

For iPhone X and later devices, unless there is a new law requiring Apple to continue to provide security updates on iOS 15, there is no chance of upgrading to iOS 15 higher than 15.7.2.

 

[Banglazed]

Public release

 

[DuckMe]

I removed the modem firmware references in this WIKI for iPhone 8 and later models because there is no 15.7.3 available for those models.

iOS 15.7.3 is only available for iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation)

iPadOS 15.7.3 is only available for iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

 

[asus389]

Well, I installed it on my 6s. Weirdly after it installed and restarted it presented me with a pop up dialog that said to tap the home button to finish setting up iOS. It also turned on my Bluetooth (which was off) and turned on background app refresh (which was also off).

About the security content of iOS 15.7.3 and iPadOS 15.7.3

This document describes the security content of iOS 15.7.3 and iPadOS 15.7.3.

support.apple.com

 

[Aegon.hunters]

I removed the modem firmware references in this WIKI for iPhone 8 and later models because there is no 15.7.3 available for those models.

iOS 15.7.3 is only available for iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation)

iPadOS 15.7.3 is only available for iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

hope iOS 15.7.3 will be installed on iPhone 8 later

 

[DuckMe]

hope iOS 15.7.3 will be installed on iPhone 8 later

Please refer to the comments on the #2. It is possible that the iPhone 8 series can be updated to this version, but because I don't have an iPhone 8, I can't test it.

The changes I've made to this wiki are aimed at aligning its content with Apple's official release.

 

[auxbuss]

FYI, my first gen. iPhone SE – which is effectively a 6S, I believe – got the update to 15.7.3.

It also turned on my Bluetooth (which was off) and turned on background app refresh (which was also off).

ime, updates always turn on Bluetooth, which I never use; but thanks for reminding me

Background App Refresh remained off after my update ¯\_(ツ)_/¯

 

[asus389]

It’s weird, the graphics on mine looks a little blurry after the update? Hmmm.

 

[Clumsy Colin]

Modem Firmware on my 6S Plus is 9.61.00

 

[asus389]

My phone is glitchy after this update. There was green/grey dimness to the screen and the phone is slower and has worse battery life. Safari seems to stall when loading pages now. My phone worked great on 15.7.2. I guess I’ll try a restore.

 

[asus389]

Did an ipsw restore using Finder to 15.7.2 while it’s still being signed. Things seem more or less ok again. I guess I’ll take another swing at it when 15.7.4 comes out.

 

[DuckMe]

Modem Firmware on my 6S Plus is 9.61.00

Updated, thanks

The graphics are weird like almost a green/grey dimness to the screen

Provide a photo to better illustrate what you experienced.

 

[asus389]

Updated, thanks


Provide a photo to better illustrate what you experienced.

I already switched back to 15.7.2 because I wanted to do it before they stopped signing it. The colors look normal again and the glitches are a bit better. It was a subtle shift towards a more green/gray tint to the screen on the .3 update. /shrug

 

[DuckMe]

I already switched back to 15.7.2 because I wanted to do it before they stopped signing it. The colors look normal again and the glitches are a bit better. It was a subtle shift towards a more green/gray tint to the screen on the .3 update. /shrug

Perhaps it is a good idea to report this issue to Apple, since iOS 15 is only bug fixes and security updates in the future, they will not focus on iOS 15, and if there is a lack of feedback, this issue may not be fixed.

 

[hanser]

Is this just one case or has it been reported more often? I am a bit reluctant to update my iPhone SE zu 15.7.3 after reading this.

 

[hanser]

Obviously it does not seem to be widespread.

 

[hanser]

Just updated, all is fine.

 

[asus389]

I already switched back to 15.7.2 because I wanted to do it before they stopped signing it. The colors look normal again and the glitches are a bit better. It was a subtle shift towards a more green/gray tint to the screen on the .3 update. /shrug

I kept my 6S at 15.7.2 for a few months because I had some weirdness when I first updated to 15.7.3. I later updated from 15.7.2 to 15.7.7 and its totally fine.