My friends wanted to transfer some games by FTP and got messed up by putting the games straight into dev_hdd0 w/o putting into game/laun12345/gamez....
Now he is able to enter ps3 into jailbreak mode, but when he want to open either backup mgr or ftp program, it shown "error 80010007"
Usually this means that the jailbreak is not in effect. Make sure he/you are doing the jailbreak correctly. I get the same error here and there using my ti-84, to fix this issue i just turn off ps3 and redo jailbreak. Hope this helps!