"The SPPersistedObject, CustomTimerJob Name=Sync User Details List, could not be updated because the current user is not a Farm Administrator." in SharePoint 2010

When deploying a custom timer job in our UAT enviornment I came across the following error message:

"The SPPersistedObject, CustomTimerJob Name=Sync User Details List, could not be updated because the current user is not a Farm Administrator."

Farm Config: SP2010 SP1, June 2011 CU

A few things that I checked:

• OWSTIMER service account"SVC_XXXXXXX" was in the "Farm Administrator's Group"
• Added the App Pool as the Farm Admin group (not sure if this the right way of doing it)
• Set the "RemoteAdministratorAccessDenied" to false
• Retracted the soltuion and redeployed it

Powershell command to set the RemoteAdministratorAccessDenied  to False:

//PowerShell code

function Set-RemoteAdministratorAccessDenied-False()
{
    [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint") > $null
    [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Administration") > $null

    # get content web service
    $contentService = [Microsoft.SharePoint.Administration.SPWebService]::ContentService
    # turn off remote administration security
    $contentService.RemoteAdministratorAccessDenied = $false
   $contentService.Update()         
}

Set-RemoteAdministratorAccessDenied-False

References:

http://support.microsoft.com/kb/2564009

http://www.thorntontechnical.com/tag/current-user-is-not-a-farm-administrator#.Ui0kTzanrY8

http://sharepoint.stackexchange.com/questions/22757/configure-sharepoint-user-for-timer-job