Better late than never...
I tried the OS upgrade on my SD card. Now I cannot enable wifi anymore.
=======================================================================================
PND             : /usr/pandora/apps/op_wifi.pnd
PND_FSTYPE      : Squashfs
APPDATADIR      : //pandora/appdata/op_wifi
APPDD_FSTYPE    : rootfs ext2
PND_CPUSPEED    : <unset>
EXENAME         : op_wifi.sh
ARGUMENTS       : <unset>
=======================================================================================
[ START ]--- Mount the PND ----------
Mounting : mount -t squashfs -o ro "/dev/loop0" "/mnt/utmp/op_wifi"
mount: unknown filesystem type 'squashfs'
WARNING : mount faild, re-tring
mount: unknown filesystem type 'squashfs'
ERROR The PND File-system is not mounted !
+++++++
Loopback devices :
/dev/loop0: [b301]:247832 (/usr/pandora/apps/op_wifi.pnd)
Are mounted on :
For these Union :
ERROR: The Union File-system is not mounted !
+++++++
Loopback devices :
/dev/loop0: [b301]:247832 (/usr/pandora/apps/op_wifi.pnd)
Are mounted on :
For these Union :
[ FAILED]--- Mount the PND ----------
(zenity:2217): Gtk-WARNING **: Unable to locate theme engine in module_path: "ubuntulooks",
=======================================================================================
Return code is : 6
Am I missing something? 
 
Is there a way to fix it without a clean reinstall?
EDIT:
I believe I just found it: I'm still on Kernel 3.2.53 .
Could someone tell me where the updater stored the new kernel image, so I can copy it into /boot/ ?
EDIT2:
The new kernel image did not fix my error.