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esp-mosaico-microbit (ozanoner)FirmwareConfidence: Medium

An upload interrupted mid-write leaves a 0-byte firmware.bin behind a database row with the correct hash; every later install is rejected as "not an ESP application image", and deleting the file by hand turns that into an HTTP 500 with an "outcome is unknown" message.

Impact Analysis

Persona
Firmware Engineer
Team Size Impact
5x Multiplier
Prototype Delay
3 Days
Est. Annual Cost
$30,000
  • 1 user · 1 month240 min
  • Rest of team960 min
  • Rest of year13,200 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $30k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources
ozanoner/esp-mosaico-microbit Issue #19: esp-iris: an interrupted upload leaves a 0-byte firmware.bin and wedges every later install
github.com
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Analyst Notes

From the Grok pain-radar digest, Oct 25-26 2026 (Oct 25 daytime to Oct 26 morning slots). Verified live 2026-10-26: issue/PR read on GitHub; title and state confirmed.