Trusted Reviews is supported by its audience. If you purchase through links on our site, we may earn a commission. Learn more.

Apple Pencils drawing wonky lines after iPad Pro display replacements

In recent years, Apple has shown a much deeper willingness for users to repair their devices in ways they see fit, either DIY-style or through third-party repairs.

However, the right to repair isn’t without the odd snag. New reports say display replacements on some iPad models performed outside of the Apple network may be upsetting the ability to work with the Apple Pencil stylus.

Galaxy Z Fold 5 is £200 off at Amazon right now

Galaxy Z Fold 5 is £200 off at Amazon right now

Samsung’s fresh Galaxy Z Fold is already discounted £100 at Amazon, but click the voucher box to bring the price down further.

  • Amazon
  • RRP: £1,849
  • With Voucher: £1,649
View Deal

According to a UK repair shop, users who’ve replaced display on certain iPad Pro models can no longer draw straight lines with their Apple Pencil. Even when it’s a genuine part from a different iPad. That’s a problem.

Ricky Panesar of the UK-based iCorrect repair company told Forbes it’s down to a “serialisation” issue at Apple’s end. Apple likes to pair genuine parts like the screen to the logic board of the device itself. The correct Apple part syncs with the logic board via proprietary software. Sometimes, this requires Apple to repair the devices themselves.

Panesar said: “We found with the newer versions of the iPad that when you put a new screen on, even if it’s taken from another iPad, the pencil strokes don’t work perfectly.

“They have a memory chip that sits on the screen that’s programmed to only allow the Pencil functionality to work if the screen is connected to the original logic board.”

We’ve seen this issue manifest before, causing ‘Battery Health’ notification problems for iPhone users’ replacing their batteries and display issues that have prevented Face ID from working. The latest victim is the iPad Pro, with the 12.9-inch (5th/6th gen) and 11-inch (4th Gen) models.

Apple is slowly getting itself in-line with the right to repair movement, but there are still limitations on what users can achieve without upsetting key functionality. Apple promised to resolve the issues that came up with iPhone screens, lets hope it does likewise here.

Why trust our journalism?

Founded in 2003, Trusted Reviews exists to give our readers thorough, unbiased and independent advice on what to buy.

Today, we have millions of users a month from around the world, and assess more than 1,000 products a year.

author icon

Editorial independence

Editorial independence means being able to give an unbiased verdict about a product or company, with the avoidance of conflicts of interest. To ensure this is possible, every member of the editorial staff follows a clear code of conduct.

author icon

Professional conduct

We also expect our journalists to follow clear ethical standards in their work. Our staff members must strive for honesty and accuracy in everything they do. We follow the IPSO Editors’ code of practice to underpin these standards.