{"action":"created","issue":{"url":"https://api.github.com/repos/PX4/Firmware/issues/2111","labels_url":"https://api.github.com/repos/PX4/Firmware/issues/2111/labels{/name}","comments_url":"https://api.github.com/repos/PX4/Firmware/issues/2111/comments","events_url":"https://api.github.com/repos/PX4/Firmware/issues/2111/events","html_url":"https://github.com/PX4/Firmware/issues/2111","id":72209436,"number":2111,"title":"sometimes first boot ends with 5 beeps before freeze, second boot works fine","user":{"login":"severinleuenberger","id":9945167,"avatar_url":"https://avatars.githubusercontent.com/u/9945167?v=3","gravatar_id":"","url":"https://api.github.com/users/severinleuenberger","html_url":"https://github.com/severinleuenberger","followers_url":"https://api.github.com/users/severinleuenberger/followers","following_url":"https://api.github.com/users/severinleuenberger/following{/other_user}","gists_url":"https://api.github.com/users/severinleuenberger/gists{/gist_id}","starred_url":"https://api.github.com/users/severinleuenberger/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/severinleuenberger/subscriptions","organizations_url":"https://api.github.com/users/severinleuenberger/orgs","repos_url":"https://api.github.com/users/severinleuenberger/repos","events_url":"https://api.github.com/users/severinleuenberger/events{/privacy}","received_events_url":"https://api.github.com/users/severinleuenberger/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":11,"created_at":"2015-04-30T16:18:27Z","updated_at":"2015-05-05T11:43:30Z","closed_at":null,"body":"From time to time my board freezes on booting. It ends with 5 beep tones. \r\nAfter restarting the board, everything works normally. I couldnt figure out, what was the cause. \r\nAs I heard, I am not the only one with this issue. \r\n\r\nI use the latest dev-build from Apr 29 with a dropix/pixhawk-board. "},"comment":{"url":"https://api.github.com/repos/PX4/Firmware/issues/comments/99054398","html_url":"https://github.com/PX4/Firmware/issues/2111#issuecomment-99054398","issue_url":"https://api.github.com/repos/PX4/Firmware/issues/2111","id":99054398,"user":{"login":"SimonWilks","id":10983630,"avatar_url":"https://avatars.githubusercontent.com/u/10983630?v=3","gravatar_id":"","url":"https://api.github.com/users/SimonWilks","html_url":"https://github.com/SimonWilks","followers_url":"https://api.github.com/users/SimonWilks/followers","following_url":"https://api.github.com/users/SimonWilks/following{/other_user}","gists_url":"https://api.github.com/users/SimonWilks/gists{/gist_id}","starred_url":"https://api.github.com/users/SimonWilks/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/SimonWilks/subscriptions","organizations_url":"https://api.github.com/users/SimonWilks/orgs","repos_url":"https://api.github.com/users/SimonWilks/repos","events_url":"https://api.github.com/users/SimonWilks/events{/privacy}","received_events_url":"https://api.github.com/users/SimonWilks/received_events","type":"User","site_admin":false},"created_at":"2015-05-05T11:43:30Z","updated_at":"2015-05-05T11:43:30Z","body":"@LorenzMeier seeing it would have been the second bad SD card within a couple of hours on two different autopilots I didn't want to believe it was coincidental, but it seems it was. Every second boot gave me mounting issues even when only powered by USB. A new SD card resolved the issue.\r\n\r\nThe mixer error is odd though. Every second boot this morning was failing and then when I returned later on (just plugged it in again, no changes) it worked and I haven't had it happen since. After that I addressed and fixed the microSD."}}