Scion not going foward

[1FasImp]

Called AM today and talked to Jay. He asked when i sent it in and i said they had it since Nov. 7 he went to look for it. Found it, then he looked at my scion, touched up some of the solder points i did. then tried it out. They got nothin when trying to make it go foward, but they did get it to go backwards and it worked. While in the process of it going backwards they fried the bottom FET they said. Then they wanted to charge me $48.00 to install new ones ..... So basically I paid them to F**k it up more . But as for the steering jitters he said it was normal cause i put 7v lipos on it. So I told them to send it back. I will fix it myself. Never again will I send them anything. This has been a really bad experience for me.