Question What should I do if my USB mains faceplate is only giving out 3.8v instead of 5v?

Hazzy671

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Hi, I acquired a mains faceplate with 2 USB chargers to charge my phone and to run a USB lamp off of. After a few days, I noticed that the lamp started flickering on and off and the phone wouldn't charge. I thought of checking the voltage of the USB port and I was getting 3.8v instead of the 5v I need.

Any suggestions?
 

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Is your multimeter accurate? Tried measuring with a different one?
Where are you measuring from as the ends of the probes can't be seen in your pic?

You said you acquired the faceplate, is it brand new and of good known quality?
If it's a decent regulated supply the output volts shouldn't drop under load.

If yes to these queries you're only course of action is to replace it as they're not really repairable.
 
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