SKR 1.4 COM connection gone long story

[sawcio]

Hello, I've got an issue with my skr 1.4, After one of flashing I was affraid board died, it didn't caught firmware.bin from microsd and couldn't connect via USB cable from windows pc. Fortunately I got an USB-UART programer used for sonnoff switches and after few days of tries I've got success connection from Flash Magic using UART connection instructions by "GadgetAngel" by the way she did great job writing instruction, but it worked after a bit of stroke with soldering iron to reset pin points to make a good contact. I thought this is the end :) , I'll flash board and it will wake up or it's junk and that's it. But here is what happend. I flashed board using SKR 1.4 few images, only bootloader, full with firmware and looks like it wake up board, now caught firmware.bin from microsd and renamed it with firmaware.cur but there is still no connection on USB I've got a RepRap Discount Smart Controller but it wasn't yet configured when board died. I tried to configure it in new compiled marlin after repleacing bootloader but it doesn't show anything. (I sukcessfull configured this display on MKS GenL and tried the same settings for SKR but I'm not sure it's OK.)

My question is how in such situation I can check does board hangs right after importing new marlin from microsd (I think it starts because it renames the firmware.bin to firmware.cur) , or is board working properly just bootloader dosent properly set usb connection and I'm noob and didn't properly configured RepRap Discount Smart Controller in marlin for SKR?

Please give me any suggestions because I start loosing hope that I'll fix this board even if it could work :(

[radek8]

If you still have a problem, attach configuration files and connection photos. If you have already solved it, close the ticket Thank you