No Solar Charge - Enduro

*** ojeff here. my Endoro watch  has stopped charging using solar

I have carried out some basic troubleshooting including.

- Making sure the screen is clear and free of dirt

- Turning the device off / on

- Updated to the latest software installs

I also contacted Garmin through  the online troubleshooting portal and was advised to carry out the following steps

- Do a soft reset

- put outside for an hour to see if solar gets picked up

- Check my solar widget logs on connect

This does not appear to have picked up any charge :(

- My device is a Garmin Enduro (nott Enduro 2)

- softrware v 26

My question is will a factory Default possibly help? Or does anyone have any other troubleshooting I could try

Thank you - Jeff