I have tried both. Still can't get it to work. I've tried all the standard trouble shooting. I'm unsure if it's a software issue or hardware. It worked fine for months.
you could check software side by reproducing and reporting issue using samsung members app > get help > error report. Give them a few days, usually gets back with an answer in maybe few days to a week-ish.
mean while, you can visit authorized repair center for checkup.
Hi there, We understand how frustrating it is to be unable to use wireless power share. This article provides some helpful tips when using the feature. https://www.samsung.com/us/support/troubleshooting/TSG01109653
Also, try placing the phone in Safe Mode and test the power-sharing feature. https://www.samsung.com/us/support/answer/ANS00062983/
If the wireless power share feature is still not working in Safe Mode, it is recommended to have the phone evaluated by a certified technician. You can use the following link to find a list of service centers in the U.S. that can do the repair: http://www.samsung.com/us/support/service/location For service outside of the U.S., please use this link: https://www.samsung.com/us/common/visitlocationsite.html
We apologize for any inconvenience.