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The Meta Quest 2 (formerly Oculus Quest 2) was released in October 2020 and is the successor to the Oculus Quest.

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Is there a way to test the battery and USB port (unit not charging)?

I have a Quest 2 that will not charge or power on and the charge light does not come on as well. I have tried all the methods I found online to get the unit to power on and/or charge (i.e. held power button for 30+ seconds, tried different USB cable, left the unit plugged in overnight, etc.). I have also disassembled the unit and reseated all the cables.

I am wondering if there is a way that I can test the battery and USB port to try and determine if either are bad. I am comfortable replacing parts but would like to test them before randomly choosing to buy one to see if it fixes the issue. I have a multimeter and can properly use it.

The unit is only a year old. So, I do not think that the battery would be bad. However, the USB port is in good condition. Nothing is loose and the port has been cleaned. The cable fits securely. I am using the original cable and charger.

I am open to any other suggestions on what to test and how to test it.

Any help is greatly appreciated.

Thank you!

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@handydad try a USB ammeter and see if your device even tries to pull a charge. If it does not you know that this "could" be the battery. After that the only way is to tear it down and to visually check and measure the board connections of the USB port etc.

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@oldturkey03 unfortunately, I do not have a USB ammeter. I am willing to measure the board connections, but I do not know where or which board connection would be accessible and the correct one to check.

I just noticed that there are markings on the ribbon cable going to the battery showing where P+ and P- are. I measured those at the board (battery unplugged) and the voltage is constantly varying between 0.5 - 2.2 VDC. It appears that voltage is coming from the USB port through the motherboard. However, I am not sure if the voltage should normally vary as it is.

Any thoughts are welcomed.

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@handydad what are those voltages with the battery and the charger connected? 2.2VDC is not what I would expect. After all your USB should supply at least 5V

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@oldturkey03 there is no easy way to test the voltage with the battery connected. I was not sure if the charging circuit varies the voltage or not. I was expecting to see 5V as well. I know the charger itself is working well as I connected it to another unit and it charges it correctly.

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For anyone following this post, the issue turned out to be a bad motherboard. I was able to obtain a motherboard from another unit with the same size memory and the unit is now in working order. Unfortunately, the only was able to determine this was by trying another motherboard. I am not sure if my findings regarding the voltage above may help in identifying this issue as I was not willing to test this on the working motherboard. I did not want to risk causing a short and ruining the replacement motherboard.

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