Yealink phone (W52P) won't charge

[complex1]

Hi Pieter,

I think your power adapter is defect.
What you can try to do is use the base power adapter (is the same as cradle PSU) to check if the handset will charge. Also check if the light on the charger cradle is on.
If everything is ok now then you have a defective power adapter.
In every Electronic shop (e.g. Walmart) you can buy a power adapter with the right specs. (5V/.6A)
If you are living in the US search Internet for “SIPPWR5V.6A-US”