I have recently purchased LG Optimus E900 Windows 7 Mobile Phone. I like this phone. My phone is working fine since I bought it. Currently I have revised my firmware from 220.127.116.11 to 18.104.22.168. I have tried to backup and it works fine. But I donít know why I am getting an error code 8018001E. Has anybody faced this error before? Any suggestions would be highly appreciated. Thank you in advance.