There's something you are withholding from your description. Maybe you didn't think it important. Had you downgraded from 4.0+ to 3.2 at any time in the last 6 months or so?
And normally a update of WSR wrong region would not full brick any Wii, at worst you'd get an Opera error when accessing the settings menu.
Do you have bootmii/boot2, your Wii is old enough. Does the DVD slot LED flash twice when you power up?
You can try Preloader but I doubt if you have it, it's removed upon Sys Menu changes.
Unbrick discs only work when you have the recovery menu up, using the savemiifrii gamecube controller trick or with a savemii device.