We've received the IC unlock questions from a lot of customers that if the IC model has been grind off, is the IC still unlockable ? The answer is yes.
But how to unlock IC if it's model had been grind off? We could diagnose the IC model from the surrounding circuit design. If it's not identifiable, we will open the IC cover to check the wafer of the IC, and find the IC model. However, this working procedure relies on the rich experiences on hardware structure of the various IC, since there are so many IC types & brands.
With 10+ years experiences on IC unlock, and the Circuit & IC design professionals in team, Fast PCB Studio is ready to help on your project if you have the similar issue with your IC.