I honestly hate having the same wallpapers on both lock screen and home screen. This is why there is a built-in feature in iOS that allow users to set a different background image for both screens.
Therefore, I take advantage of this functionality dearly. Not long ago, I noticed a problem with my iPhone screen. Whenever I unlock the device, it shows a black flicker transition.
Sort of like a quick flash before showing the home screen. The flash continues to repeatedly show up even when I switch between unlocking methods (Touch ID and Passcode).
A solution for Jailbroken iPhone
Luckily, someone was able to come up with a solution to this flickering problem. It’s no one else but developer Ziph0n, the guy that brought us other useful tweaks such as Pokemon Lock, MusicalKeyboard, and more.
NoBlackFlicker is a recently released Cydia tweak that will remove the flash or black flicker when unlocking your iPhone to a different wallpaper.
So, if you’ve tried restarting your iOS device, soft reset, or even factory reset and it still wouldn’t work, download the NoBlackFlicker tweak.
- Go to Cydia and add this source: http://repo.ziph0n.com/
- Search for NoBlackFlicker and Install
After that, you won’t see the weird transition again.
iPhone 6s Plus Screen Flickering Problems
I also noticed the flickering problem happen on the iPhone 6s Plus as well. The following method will provide a fix, and you don’t need to jailbreak your device.
- Tap on the Settings app
- Go to Settings > General > Increase Contrast
- Enable Reduce Transparency
Turning on “Reduce Transparency” feature will only resolve this issue temporarily. It worked perfectly for unresponsive touchscreen or black flickering display.
- Disable Auto-Brightness from Display & Brightness settings page
- Change LCD screen
- Reset iPhone
If you see something worse, take it to the Apple Store for further assistant.