rev counter and speedo not working

[2010AveoLT]

Hi i need some help on my aveo hatchack 2008 my rev counter and speedo not working after taken out the cluster to look at the petrol bulb, so i unplugged the the unit to have a look to see if the bulb has gone but it was fine plugged the two connectors back in and now the rev counter and the speedo are not working the the petrol and the temp are working fine can any one help plz

thank you for ye time iain

is your gearbox an Automatic or Manual? because if I remember correctly, the Clutch switch position has to be reset if the Instrument cluster is disconnected.