If experiencing a READ ERROR 2 message, check or the following;
Ensure that the instrument is held flush against the sample.
Ensure that the sample is located on an opaque surface. READ ERROR2 can indicate a light leak.
Ensure that the instrument is dry! There could a moisture / humidity issue. Attempt to "dry" the instrument out by placing it in an air conditioned environment and near a "warming heat" such as a computer monitor or on top of a TV set for 8 hours.
Do NOT use a heat gun or blow dryer, as this will cause further damage!