When you have a broken item (primarily electronics) you purchase the identical item from a local retailer and 'swap' the two items. You then return the broken item using the new packing and receipt - effectively "repairing" your item.
My radar detector stopped working, so I went into Best Buy and did a schumacher special. I purchased the new radar detector (same model) from Best Buy. I took it home, opened the packaging and swap the radar detectors. I then took the broken one back to Best Buy using the packaging and receipt from the new radar detector. I now have a new radar detector free of charge.