HbA1C blood test I Nycocard

HbA1C Blood Test:
Introduction
Importance
Application
Test in Laboratory
using Nycocard
Reference Range:
Normal range
Greater than 6%
Risk of diabetes
6.0-6.5%
In diabetic patient range should be less than 6.9%
Range equal and greater than 7.0% Out of control
such condition long term may cause following problems-
Kidney disease
Nerve disorders
Cardio Vascular Diseases
Diabetes Retinopathy
Bone and joint problems
Teeth and gum infections

[@mithleshsingh3544]

Good

[@nithiyaay5334]

It shows ERROR and recalibrate... How to recalibrate?