How to replace the power button

Hi Nihit,

As far as replacing your power button, it's going to depend on which part of the button is having problems; there is the mechanical button itself that's mounted on the midframe attached to the screen, or there's the electromechanical switch that's plugged into the motherboard. The fix for those two items is completely different, so it's going to depend on where the problem is located as to how you fix it.

If it's the electrical part, then you can replace that part by itself. There's a Spanish site called Nadie Me Llama Gallina that has a guide to replacing that little circuit board to get your buttons working again.

Manuales / Motorola Moto C Plus / Side push buttons

You can buy the flex assembly by itself from several sites on the Internet; here's one that sells both the flex cable and the buttons themselves (but only in gold).

For Motolora Moto C E4 Plus Phone Compatible New Power Volume Button On Off Key Flex Cable Part - AliExpress 509

If it's just the mechanical button that's the issue, you can buy one on the site just mentioned, or you can get either the black or gold ones at this seller.

For Motorola Moto C Plus Phone Housing Side Key Power Volume Button - AliExpress 509

Unfortunately, I wasn't able to locate any instructions for replacing just those buttons, but I'm guessing they should come out after you remove the flex board as shown in the Nadie Me Llama Gallina guide. You can also buy the entire midframe that holds the buttons, but that's going to be a lot of work so hopefully you wouldn't need to. Here's a seller who carries that part.

Best Quality Middle Frame For Motorola Moto C Plus Front Frame Housing Bezel Repair Parts - AliExpress 509

The screen replacement guide from Nadie Me Llama Gallina could also be used to replace the midframe; once you've gotten all the way through the guide you would just replace the midframe instead of the LCD when you're putting it back together.

Manuales / Motorola Moto C Plus / Fullscreen

As a last resort you could always just use the iFixit guide and replace the entire screen + frame assembly, which should include the buttons.

Moto C Plus Screen Assembly Replacement - iFixit Repair Guide

Of course, then you would need to buy the entire assembly, like this one.

Amazon.com: A-MIND for Motorola Moto C Plus LCD Display Touch Digitizer(with Frame) Screen Replacement XT1721 XT1724 XT1723 XT1725 Full Assembly Repair Kits with Tools (Gold) : Cell Phones & Accessories

So one way or another, hopefully this gives you all the information you would need to fix your power button. Let us know what the problem turns out to be and how you end up fixing it.