How can I restore ProMotion to 120 Hz after 18.2.1 update

Expressing or conveying visual or feel experiences effectively through these forums may be challenging. The underlying sound issue on your iPhone cannot be accurately diagnosed online. Factors such as your iPhone's specific interface lags and ProMotion Refresh Rate, and potential hardware problems cannot be assessed through this method. For more personalized and in-depth assistance, I recommend securing a Genius Bar Reservation and exploring the various support options provided by Apple.

Get a Genius Bar Reservation and Apple Support Options - Apple

When you encounter issues with your Apple devices, the Genius Bar at Apple Retail Stores is the go-to place for expert assistance. The Genius Bar is staffed by knowledgeable Apple employees, often referred to as "Geniuses," who can diagnose and resolve a wide range of hardware and software-related problems. To ensure personalized attention and a convenient visit, Apple provides the option to schedule a Genius Bar Reservation.

Contact Genius Bar.

Manage Reservations - My Reservations - Apple

It's not always the iOS update's fault!  Many things can cause phone problems.  If you tell people you think it's an iOS update, it might make it harder to fix or find a solution for the real issue.

Remember, the right question often leads to the solution!

iOS updates aim to enhance user experience, boost security, and fix bugs rather than disrupt core features. The majority of the issues after updates might stem from underlying, unmentioned factors. Updates won't typically alter personal data but may refine settings or features. Backup before major updates for safety. Review Apple's update details and backup advice for a smooth process.

Kindly consider checking your settings and addressing any device issues before attributing the issue to external factors. This could be a pure coincidence that the iOS update affected the iPhone functions.

Before initiating a standard iOS update, it's advisable to create a backup. Have you completed this step? If yes, proceed with the restoration from the backup.

See what each update does: About iOS 18 Updates, About iOS 17 Updates, About iOS 16 Updates, About iOS 15 Updates, About iOS 14 Updates, About iOS 13 Updates, About iOS 12 Updates, and so on...

The technical spec: iPhone 15 Pro - Technical Specifications

The iPhone 13 Pro, 14 Pro, 15 Pro, and Pro Max versions, and the iPad Pro ProMotion displays are capable of dynamically switching between:

• Faster refresh rates up to 120Hz
• Slower refresh rates down to 24Hz or 10Hz

This dynamic switching means your app can present smooth, seamless animations and take advantage of power-saving opportunities. Your app may already be capable of taking advantage of these new refresh rates without any changes. Some framework animation features handle frame pacing automatically for you, including Optimizing ProMotion refresh rates for iPhone 13 Pro and iPad Pro | Apple Developer Documentation

Benefits of the iPhone 13, 14, and 15 Pro and Max versions's adaptive refresh rate:

Experience unparalleled smoothness without sacrificing battery life:

One of the biggest advancements in smartphone displays is the jump to high refresh rates. While these displays deliver a buttery smooth experience, especially when scrolling or gaming, they can come at the cost of increased battery drain. The iPhone 13, 14, and 15 Pro and Max versions tackle this issue head-on with their innovative adaptive refresh rate.

This technology allows the display to intelligently adjust its refresh rate between a range of 10Hz to a blazing-fast 120Hz. What does this mean for you? When you're engaged in fast-paced activities like gaming or watching high frame-rate videos, the display will seamlessly switch to 120Hz, ensuring incredible responsiveness and a visually stunning experience.

However, for everyday tasks like reading an email or browsing the web, the refresh rate can drop down to a lower setting like 10Hz. This significantly reduces battery consumption without any noticeable impact on smoothness. It's a win-win situation!

The iPhone 13, 14, and 15 Pro and Max versions prioritize both a stunning visual experience and long-lasting battery life. The adaptive refresh rate is a key feature that contributes to this balance, making it a perfect choice for users who value both