help Switchable graphics card not working

[FlaySkay]

Hi, 

I have HP Pavilion dv6-6b80ec (I was only owner)

GPU1: Intel HD 3000
GPU2: AMD Radeon HD 6770M/2GB DDR5
https://support.hp.com/us-en/product/HP-Pavilion-dv6-Entertainment-Notebook-PC-series/5145688/model/5196813

and recently I bought new SSD and installed it instead of CD-ROM, quick and easy swap, then I decided to install OS on the new SSD and then format the HDD.

Now I´m allready running from newly installed Win10. BUT the radeon GPU doesnt work, I cant "swap" to the AMD card to play games. I have tried to install many versions of Drivers, many versions of UnifL (https://leshcatlabs.net/downloads_unfil/) drivers, but nothing worked. Someone suggested it might be because HP drivers do not support Win10 but UnfiL drivers do. And I know for certain it is possible to have Win10 and working card becasue before I moved system to SSD I've had Win10 on HDD. And there is another ODD thing, sometimes after booting up Feature levels aren't showing and AMD card periodically gets load for 4% which I can see in AMD System Monitor but I cant launch games because of missing Levels. And if the levels show up GPU speeds are at 0MHz and 0% load. There is a switchable "button" in BIOS for GPU to run in FIXED or DYNAMIC mode but neither works.

Did I kill my GPU with adding SSD ?

Or is there a solution to this problem which I can't figgure out ?

If there is any need for more screenshots I will provide them ASAP.