Nokia Asha 203 and Nokia Asha 202 Touch Screen Problem Repairing Solutions are available in the following article. This solution applies to both of these phones.
In Nokia Asha 202 Touch Screen Problem can occur because of the faulty Touch Screen connector or it’s bad connection to the Cell Phone’s Motherboard. Before doing any hardware solution you should clean Nokia Asha 202 Touch Screen Connector Ways and Motherboard of the Mobile Phone. If cleaning does not work then you can replace the Touch Screen connector.
I have marked all the Nokia Asha 202 Touch Screen Connector Ways in the first diagram and in the second diagram I have marked the touch display IC. If the connector is in good shape don’t touch it and replace the IC marked in the second diagram.