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Repair guides and disassembly information for Google's Pixel 4 XL smartphone, released in October of 2019.

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Diagnose Pixel 4 XL not booting

I was on a call on this phone & suddenly the phone just died. If I hold the power button the google logo appears but as soon as I let go of the power button the phone dies; just want to get an idea of what the problem may be? dead battery or charging port?

When plug the phone into a charger, nothing happens...it as if it isn't charging but not sure what else to test before i start replacing things?

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Hi,

Some things to check first:

Check that the charger is working OK e.g. try another compatible charger or plug the charging cable into a working computer's USB port and see if the phone begins to charge.

Check that the charger cable is OK

Use a magnifying glass to visually inspect the USB-C port for any damage.

Check if the USB-C port is loose by inserting the charger cable only into the phone, (do not connect the other end of the cable to anything) and then firmly grab hold of the phone in one hand and use the other hand to gently, stress gently grab the cable plug that is inserted into the charge port and try to move it up and down and side to side to see if you can feel any movement at all in the charge port.

If all the above appear to be OK then the phone will have to be opened and further tested

Here's the ifixit Google Pixel 4 XL Repair guide that may help.

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I would try another battery, the phone is over 2 years old now and if used heavily on a daily basis can kill the battery. I’m assuming you’ve never had the battery replaced before.

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Hi Phill,

This sounds suspiciously like what happened to my niece's Pixel 4 XL. Wouldn't charge, can't reset, no power, just looking dead.

I checked everything possible outside the phone and tried every suggestion I could find on the internet for resets, button presses and chanting "Wake up!" to it, with no luck.

I resigned myself to opening it up and taking a look around. For safety's sake I unplugged the battery and checked the connector and looked carefully at everything for any possible clue as to what was going on, but found nothing.

So imagine my surprise with I plugged the battery back in and pressed the power button only to have it turn on!

I literally did nothing to the phone but unplug the battery for a while then plug it back in, and all of the sudden it's working again. I tested it every way I could think of, charging it to full then running it till it died a couple of times, and it worked exactly the way it was supposed to.

I have no explanation for this miracle cure other than thinking that something in the software got royally messed up and crashed the whole thing to the point where it couldn't even reset itself and that disconnecting the battery finally reset it so it could reboot. In theory it shouldn't be possible to lock out the hardware (hard) reset function, but I don't know what else could explain it.

If you're patient you could just wait until the battery dies completely; that should accomplish the same thing as unplugging the battery, but given the long battery life of those phones, I suspect it will take a very long time to drain.

So my suggestion is to open it up and unplug the battery. Give it a half hour or so - you probably only need maybe 30 seconds, but that's how long I had the niece's unplugged so that's what I'm sticking with - then plug it back in and see if it'll wake up.

Here's a guide on how to remove the battery; just stop after step 15 where you unplug the battery connector.

Google Pixel 4 XL Battery Replacement - iFixit Repair Guide

You'll probably want to pick up a new adhesive seal for the rear cover to help restore the water resistance of the phone when you put it back together. You can buy that here in iFixit if you want.

Google Pixel 4 XL Rear Cover Adhesive - Genuine - iFixit Store

Google Pixel 4 XL Rear Cover Adhesive - Genuine Image

Product

Google Pixel 4 XL Rear Cover Adhesive - Genuine

$4.99

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Phill Crawley will be eternally grateful.
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