Was this an incremental FOTA update via SW update or installing complete software using Nokia/Ovi Suite? If the former sometimes resetting device and re-installing existing software can help.
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Did you also install the two further Applications 1/2 & 2/2 updates? If not, connect your phone to Nokia Suite and install those two updates.
If you have already installed those two further updates have a read through the following troubleshooting guide.