Default [Q] defy xt isc google maps issues

i have a defy xt that i have up dated to 4.0.4 with rsd lite, all went well followed instructions from xda, in stalled gapps again all went well but maps, instilled root explore but still unable to make it work, when i long press google maps jar to set permissions to rw-r-r i get a warning" permissions change was not successful, please note that some files systems(e.g. sd card) do not allow permission changes. i must have done 1000 google searches to try to solve this issue, i cant even view google maps at google play store on my device, g play will not allow, nor through amazon market, google earth worth just fine. im farley new at android devices, just saying. thank you for your time and this site, no mater how many google searches i do it seams im always back here