One "requires a PIN" sentence covered every GATT refusal, and a link that
never opened read as "didn't answer as a MeshCore device". A Heltec V4 user
whose Windows bond had gone stale was told to pair a device Settings showed
as paired. Each failure point now has its own message and remedy: link never
opened, stale Windows bond, wrong PIN, device refused to pair (with the
WinRT status), paired but still refused, a BLE probe timeout by stage, and
link up but no identity reply. The PIN dialog shows the diagnosis instead of
calling every refusal a rejected PIN, and each case is logged at warning so
a log sent in from another machine names it.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Jean-Pierre MartineauandClaude Opus 5.5
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