Flashing a bricked SP Racing F3 Flight Controller

I've been struggling for two days with this and finally found the solution. Scroll down for that.

Background:
So my UART2 plug broke off after a bad crash causing my quad to drop out of the sky on the next flight. Once I found the broken port, I thought that I could simply plug it into a new one, so I did.

Once connected I had problems getting the RX to be recognised, so I thought that the setting must be in Cleanflight. I went to the ports tab and changed some settings and boom, lost connection after saving. Since then I couldn't reconnect.
I tried the following, to no avail:

• I tried the Zadig driver fixer when the ports weren't available, 
• I tried the ImpulseRC Driver fixer
• I tried the STM flash loader demonstrator - this worked after a few tries, but then I stopped being able to connect to the FC again.
• I tried various SP Racing firmwares, thinking that perhaps I didn't have the same model

Anyway, finally I find a reddit post and I actually read the whole thread for once, and way at the bottom I get the answer.

Solution:

• I went to 'Add or Remove Programs or Features' and removed the CP210 drivers(look for software by Silicon Laboratories Inc.)
• Then I removed the STM3 drivers, just search for STM in the list.
• Finally I installed the CP210 drivers again, and ignored the STM3 drivers.(these drivers can be downloaded from the links on the Cleanflight landing screen.
• I opened Cleanflight and in the Firmware Flasher I selected my FC model and firmware version. I also checked:
  "No reboot sequence"
  "Flash on connect"
  "Full chip erase"
  and "Manual baud rate" and I set it to 256000
• I then clicked on "Load Firmware(Online) and waited for it to be loaded
• I shorted out the two boot pins(google to find yours) on my FC and then plugged in the USB.

BOOOM! instant flashing, no more USB errrors or bootloader errors like before!

I hope this helps you as it helped me