Rescue data from softbricked Huawei P9 Lite?

Today I found my old P9 Lite from Huawei, which I apparently softbricked some time ago. It starts - but does not boot. Is there any way to save data?

Yes, of course with a chip-off but the necessary tools (PC-3000 Flash or Rusolute VNR) cost 2000 - 3500 EUR + VAT. Apart from the fact that you need the appropriate training to be able to work with it.

Therefore, this would be more of a case for the professional.

PS.: I sent you a PM.