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With HSDPA you can transfer data faster than when using 3G and GPRS provided that the phone is connected to a 3G network. Follow these instructions to activate or deactivate HSDPA.
1. Find "High speed packet access"
Press the Menu key.
Press Admin. settings.
Press Packet data.
Press High speed packet access.
2. Activate or deactivate
Press Enabled or Disabled.
Press the Menu key to return to standby mode.