BTECH DA-7X2 NR BOARD V112
==========================

If Device Info already shows NR V112 and noise reduction works normally,
skip this update unless BTECH Support directs you to it.

For a normal NR update, the guide uses PF3 + PF2 while powering on.
For a confirmed null NR/APRS condition, use the guide's separate PF1 + PF3
recovery route only when that condition or BTECH Support directs you to it.

Do not try the two modes as alternatives. Follow
DA-7X2_NR_Board_Update_and_Recovery_Guide.pdf before writing.
