iPhone 6 black screen with loading circle, vertical lines after repair, other screen issues

Screen problems may appear common but a lot of them only occurs due to hardware malfunction. In this post, we try to address some forms of screen issues on the #iPhone6 so we hope that you’ll get something useful out of this material.

If you are looking for solutions to your own #iOS issue, you can contact us by using the link provided at the bottom of this page.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.

Below are specific topics we’re bringing for you today:

Problem 1: iPhone 6 black screen with loading circle, screen turns black and opens the password lock screen

I am facing an issue where my iPhone 6 randomly shows black screen with a little loading circle in the center for around 10 seconds and then wakes up at the passcode lock screen. I say wakes up and not a restart as it happened once I was on call and the call was not disconnected. Called up Support and they mentioned to install iOS update via iTunes instead and setup as a new device and not to restore from the backup to diagnose the issue. Is anyone else having the same issue? Any suggestions that might be quicker than the one mentioned by Apple Support 🙁 — Rohit Gupta

Solution: Hi Rohit. We receive hundreds of iOS-related questions everyday and so far, nothing similar to your experience has reach us. It may be an isolated case brought about by some unique content or combination of contents in your device. If you don’t want to do a restore at this time, consider doing Reset All Settings option. Here’s how:

  1. From the Home screen, go to Settings>General>Reset.
  2. Tap Reset All Settings.
  3. If presented, enter the passcode.
  4. Tap Reset All Settings to confirm.

Unlike in Android environment, iOS users can only do so much when it comes to software troubleshooting. If resetting all settings won’t fix your problem, you should really consider do a full Restore. Here’s how:

  1. Connect your iPhone to your computer with the cable that came with your phone.
  2. We assume you remember your phone’s passcode so simply enter it when you’re prompted for it.
  3. Select your iPhone once iTunes asks you for the specific device.
  4. Once you’re in the Summary panel or screen, select the option that will restore your device (Restore).
  5. Confirm by clicking on Restore
  6. Wait for a few moments while iTunes restores your device to its factory settings. It may also take some time if iTunes will need to install an updated operating system version.
  7. After this factory reset, all software settings should be restored to their defaults.

Keep in mind that a third party app can may be causing your problem as well. If the issue occurs again after restoring your phone as a new device and installing your apps, try to narrow down possible causes by uninstalling third party apps one by one. Make sure to observe how your phone works after you remove an app to see if the recently removed one is the cause.

Problem 2: iPhone 6 screen showing vertical lines after repair

Hi. I’ve just changed a screen on an iPhone 6, now when I put it all together and powered on I had brown vertical lines. So I switched it off and Googled the problem and thought I’d fixed it. So during putting all the cables back and even disconnecting battery I powered it on and I had the screen back with no problems. But, when I fix the plate back on top of the cables and put screen in place it changed to vertical lines again, did this even when plate was off so many times. It only happens when screen goes down but is fine on a 45 degree angle. Can’t understand what is causing this. — Carlawarla3

Solution: Hi Carlawarla3. Do-it-yourself repairs seem easy to do on videos but inexperienced users can sometimes find out that the actual process can be overwhelming and surprisingly hard. Not that the steps themselves are complicated. It’s just that even a minor misstep can lead to problems afterwards. Even professionals who do phone repair for a living can sometimes encounter troubles during and after repair though. There’s just too many things that can go wrong when it comes to fixing a damaged hardware so don’t worry, you’re not alone.

But while a professional can relatively easily backtrack and diagnose where the trouble lies, an inexperienced user may find it equally, if not more, difficult to do. For us, helping you fix this problem is doubly difficult since we only rely on how you describe the symptom. We don’t know the real situation of the hardware as well as the quality of the replacement parts you’re using. That said, we doubt if we can provide any significant contribution here.

Anyway, we suggest that you start by taking the phone apart again. Once you’ve done that, make sure that you visually inspect the flex cables for any signs of damage. Even a tiny rip can result to problems.

If all flex cables are working fine, consider using another LCD. If that’s not possible, make sure that you plug in the LCD cable properly when attempting to connect it back to the main board. Check the pins to make sure that something is not bent or missing. A damaged pin, just like a ripped flex cable, can become problematic after turning on the phone later on. After verifying that everything appears in good condition, plug in the screen and power on the device without closing it up. If the problem remains, replace both the LCD and connector. Any line that shows in the screen is an indication of a bad hardware. It can be a bad flex cable or a malfunctioning LCD itself.

Problem 3: iPhone 6 screen is unresponsive, frozen, won’t restart

I have a iPhone 6S. It is at the moment 80% charged. The screen shows the date , time and the wifi connection etc in the top left hand corner and at the bottom the slide to open. When I slide my finger over it, it does not open but gets enclosed on all four sides by lines. if I tap the time that gets enclosed by . I tried holding the sleep/wake button for a couple of secs and the slide to power off comes but doesn’t power off when you slide! That too gets enclosed by lines around it. What should I do next? Please advise. Oh yes, I held on to the sleep/wake and home button simultaneously for a longer period and the Apple logo did appear but disappeared after a while, but the phone still didn’t open! Help! — Sikandar

Solution: Hi Sikandar. We don’t know the full history of your device but if you ever dropped or exposed it to water, moisture, or heat before, stop whatever you’re doing and let Apple check the hardware. You can’t fix bad hardware by doing software tricks. There’s no magic software solution that we can give you if your phone has suffered physical damage in the first place.

If this problem appeared out of nowhere and you are absolutely sure that your device is not physically damaged, it’s possible that it may be caused by bad content or an operating system glitch. If your phone is responsive enough to allow you to go under Settings, consider doing a Reset of all settings.

  1. From the Home screen, go to Settings>General>Reset.
  2. Tap Reset All Settings.
  3. If presented, enter the passcode.
  4. Tap Reset All Settings to confirm.

If the device won’t allow you to do anything though, just wait until the phone drains the battery. There’s a chance that a restart after the battery drains may fix the issue so be sure to do this.

Finally, if the phone appears stuck and won’t respond to anything, consider restoring it via DFU mode. If you haven’t tried it before, follow the steps below. This procedure requires a computer with iTunes installed. Make sure that iTunes runs the latest update.

  1. In your computer, close all active apps.
  2. Open iTunes.
  3. Turn off your iPhone. If you can’t turn it off normally, let the battery drain to 0% so the phone powers down on its own. Charge the phone for at least an hour without attempting to turn it on.
  4. Connect your iPhone to the computer via USB cable.
  5. Press and hold the Power button for at least 3 seconds.
  6. Press and hold the Volume Down button on the left side of the iPhone while continuing to hold the Power button. Be sure to hold both Power and Volume Down keys for 10 seconds. If Apple logo appears at this time, repeat steps 5 and 6. Apple logo should not show at all.
  7. Continue to hold Volume Down key for another 5 seconds. If the Plug into iTunes screen is displayed, repeat steps 5-7. Plug into iTunes screen should not show up.
  8. You’ll know that your phone is in DFU mode if the screen remains black. Your computer should then tell you that iTunes has detected an iPhone.
  9. Follow the on-screen steps in your computer to do a full recovery.


Engage with us

If you happen to have a problem with your own iPhone, let us know about it and we will do our best to post them and their solutions  in our upcoming articles. You can use this link to contact us for assistance. We can’t guarantee an answer to every question but rest assured that we will exhaust everything on our end to help you.

Be as detailed as possible when describing your problem to help us diagnose your issue easily. If you can include error messages, popups, attempted troubleshooting steps, and circumstances leading to the problem, that would be very helpful.