How to fix your HTC U12 / U12 Plus that won’t turn on (easy steps)

Power issues are often attributed to hardware problems but if you are sure the phone hasn’t been damaged due to either physical or liquid damage, then your phone that’s not turning on maybe just a result of a firmware issue. There are a couple of things you can actually do to try and fix the problem on your own. That’s what I’m going to share with you here to make your HTC U12 / U12+ turn on or respond again.

Continue reading as the procedures below may help you one way or another. We’ve been using them to fix similar problems in the past and they may also work for you. If you’re one of the owners of this new device and are currently being bugged by a similar issue, then this troubleshooting guide may be able to help you.

Before going further, if you found this post because you were trying to find a solution to your problem, then try to visit our troubleshooting page as we’ve already addressed most of the commonly reported issues with the phone. We’ve already provided solutions to some of the problems reported by our readers so try to find issues that are similar with yours and use the solutions we suggested. If they don’t work for you and if you need further assistance, fill up our Android issues questionnaire and hit submit.

Fixing HTC U12 / U12+ that won’t turn on

The following solutions may help you fix the problem. Try to see what works for you…

First solution: Soft reset

If you’re familiar with battery pull procedure that we often do to phones with removable battery when they crash, well, it’s similar to that only that we do this with phones that have non-removable batteries. Your phone is hard-wired to do this method if the combination is done correctly. In fact, it’s the only thing that could make your device respond if the problem is indeed a firmware crash. This is how you do it:

  • Press and hold the Volume Down button and the Power key simultaneously for 15 seconds or more.

If the combination is performed correctly, your HTC U12 will reboot normally and boots up to the Home screen. You can then continue to use it however, there’s no guarantee the problem would never happen again in the future.

However, if your phone doesn’t respond to it, try doing it a couple more times to make sure your doing it right. Or, you may try this instead:

  1. Press and hold the Volume Down button and don’t release it.
  2. Then, press and hold the Power key while holding down the Volume Down button.
  3. Keep both keys held down together for 15 seconds or more to simulate battery disconnect.

It’s similar to the first procedure only that we’re making sure that you press and hold the volume down button before pressing the power key because that’s the way it should be. Pressing and holding the power key first won’t give you the same result and the Forced Reboot won’t be performed. However, if your phone is still not responding after this, then you have to move on to the next procedure.

Second solution: Charge and do the soft reset again

The solution to a drained battery is, of course, to charge your phone but there are times when the device won’t respond to its charger either. If the battery runs out and the phone isn’t properly powered off, it will result to a system crash since some services and hardware components aren’t properly shut down. As a result, you have an unresponsive phone with a drained battery. To rule this out, here’s what you should do:

  1. Plug the charger to a working wall outlet and make sure you’re using the original wired charger.
  2. Using the original power / data cable, connect your device to its charger.
  3. Regardless whether the charging signs are showing or not, allow the phone to be connected to its charger for 10 minutes.
  4. After which, press and hold the Volume Down button and don’t release it.
  5. Then, press and hold the Power key while holding down the Volume Down button.
  6. Keep both keys held down together for 15 seconds or more to simulate battery disconnect.

If the issue occurred due to a drained battery and firmware crash, your HTC U12/U12+ should already be booting up by now. But if it still not responding, then it’s time to bring it back to the shop so that a technician can check it for you or have it replaced.

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Harold has been in the tech industry since 2008 when he started out as a tech support for companies like Time Warner, Comcast and Tracfone. He’s been troubleshooting phones when the smartphone industry started booming. During his tenure as a tech support, he’s already been writing for various tech blogs and doing some freelance SEO. In 2012, he joined a small team of bloggers to write for The Droid Guy, and he has been with the company ever since. Today, he doesn’t only write tutorials and troubleshooting pieces but also shoots and edits videos for The Droid Guy channel while trading stocks on the side.

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