Xhorse
Some weeks ago i have bought a VVDI Prog from Xhorse company. My first job was a Fujitsu MB90F546GS processor reprogramming. But the device couldnt able to erase flash memory. After i wrote this problem to Xhorse, they answered a few hours later, and next day gave me a patch. Now my VVDI Prog able to read/erase/write this type of processor. Trusted company with great support!