U1 chip removed from Apple Airtag using hot air. U1 Markings: 1HJV NRF52832 Markings: N52832 CIAAE0 2036GK
Immersed in HNO3 to remove encapsulant to reveal package components. Then boiled in H2SO4 to remove from package substrate. Markings: 338S00539 P04RV4.L2 99KBB686AL 1946