# Mandatory Safety Bulletins **URL:** https://discuss.cubepilot.org/c/msb/16.md [Latest](https://discuss.cubepilot.org/latest.md) · [Categories](https://discuss.cubepilot.org/categories.md) --- ## [About the Mandatory Safety Bulletins category](https://discuss.cubepilot.org/t/about-the-mandatory-safety-bulletins-category/404)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 20\ **Last updated:** [22 September 2019 23:51 UTC](https://discuss.cubepilot.org/t/about-the-mandatory-safety-bulletins-category/404 "2019-09-22T23:51:11Z")
Any Mandatory safety Bulletins for any Cube, Here, or accessory will be listed here. FAILURE TO COMPLY WITH ANY DIRECTIONS GIVEN IN THESE BULLETINS MAY LEAD TO SERIOUS CONSEQUENCES, OR DEATH Each Bulletin will contain … --- ## [SB 09 cube Red Free upgrade for Beta hardware](https://discuss.cubepilot.org/t/sb-09-cube-red-free-upgrade-for-beta-hardware/15317)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 12\ **Last updated:** [1 September 2026 03:03 UTC](https://discuss.cubepilot.org/t/sb-09-cube-red-free-upgrade-for-beta-hardware/15317 "2026-09-01T03:03:38Z")
Cube Red Beta hardware update. Do not Fly To all that purchased a cube Red.. We will be doing a free upgrade to improve the hardware performance based on learning from users. We will not require you to return your exi… --- ## [SB\_0000010 Mandatory Here4 bootloader update before further flight](https://discuss.cubepilot.org/t/sb-0000010-mandatory-here4-bootloader-update-before-further-flight/15630)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 23\ **Last updated:** [29 July 2026 21:43 UTC](https://discuss.cubepilot.org/t/sb-0000010-mandatory-here4-bootloader-update-before-further-flight/15630 "2026-07-29T21:43:27Z")
BEFORE FURTHER FLIGHT Urgent Bootloader Update needed on Here4 If your Here4 doesn’t breath blue on boot, then you MUST do this bootloader update All Here4 users need to update the bootloader on their Here4 units BEFORE … --- ## [SB\_0000008 Here4 magnetometer (Flight status Restored)](https://discuss.cubepilot.org/t/sb-0000008-here4-magnetometer-flight-status-restored/13378)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 58\ **Last updated:** [7 April 2026 19:43 UTC](https://discuss.cubepilot.org/t/sb-0000008-here4-magnetometer-flight-status-restored/13378 "2026-04-07T19:43:36Z")
Edit 9th of July, 2024: All should please update your Here4 unit using Mission planner DroneCAN/UAVCAN panel, select download from the internet. Software Version should be 1.14.FE92DFEF or later. DO NOT UPDATE UBLOX FIR… --- ## [SB\_0000007 Ethernet on Herelink one a SIYI camera](https://discuss.cubepilot.org/t/sb-0000007-ethernet-on-herelink-one-a-siyi-camera/13112)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 12\ **Last updated:** [9 July 2024 02:07 UTC](https://discuss.cubepilot.org/t/sb-0000007-ethernet-on-herelink-one-a-siyi-camera/13112 "2024-07-09T02:07:46Z")
Attention all SIYI camera users, please DO NOT connect a SIYI camera to HereLink ethernet directly, you MUST use magnetics or capacitors to isolate or put a switch or hub in line. We are unsure as to why, but it appears… --- ## [SB\_0000004Limited power capacity of the RCIN power rail on Pixhawk Autopilots](https://discuss.cubepilot.org/t/sb-0000004limited-power-capacity-of-the-rcin-power-rail-on-pixhawk-autopilots/1853)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 0\ **Last updated:** [20 September 2019 13:14 UTC](https://discuss.cubepilot.org/t/sb-0000004limited-power-capacity-of-the-rcin-power-rail-on-pixhawk-autopilots/1853 "2019-09-20T13:14:43Z")
This bulletin applies to ALL Pixhawk and Pixhawk related hardware including all genuine boards (3DR and CubePilot) as well as all clones and derivatives. DO NOT POWER anything off the RCIN power pin other than a traditi… --- ## [SB\_0000002 Critical service bulletin for Cubes Purchased between January 2019 to July 2019. DO NOT FLY](https://discuss.cubepilot.org/t/sb-0000002-critical-service-bulletin-for-cubes-purchased-between-january-2019-to-july-2019-do-not-fly/406)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 353\ **Last updated:** [21 February 2022 00:34 UTC](https://discuss.cubepilot.org/t/sb-0000002-critical-service-bulletin-for-cubes-purchased-between-january-2019-to-july-2019-do-not-fly/406 "2022-02-21T00:34:10Z")
\*\*Edit 3 April 2020 This issue is fully resolved by 3.6.12 but many updates have come since. Please keep up to date as this SB only relates to the IMU matter. Please see Ardupilot release notes for other Ardupilot matt… --- ## [SB\_0000003 Flight with arming checks set to anything other than 1 prohibited](https://discuss.cubepilot.org/t/sb-0000003-flight-with-arming-checks-set-to-anything-other-than-1-prohibited/857)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 21\ **Last updated:** [2 November 2021 19:06 UTC](https://discuss.cubepilot.org/t/sb-0000003-flight-with-arming-checks-set-to-anything-other-than-1-prohibited/857 "2021-11-02T19:06:07Z")
We are seeing too many logs where arming checks are set at either 0, or at a value other than 1. If your vehicle will not arm, you need to investigate why! do not take off until you have solved the issue that is causing… --- ## [Cube Blue is not affected by safety Bulletin 2](https://discuss.cubepilot.org/t/cube-blue-is-not-affected-by-safety-bulletin-2/631)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 0\ **Last updated:** [24 April 2019 14:03 UTC](https://discuss.cubepilot.org/t/cube-blue-is-not-affected-by-safety-bulletin-2/631 "2019-04-24T14:03:20Z")
Cube Blue (USA) is not affected by safety Bulletin 2 \*Cube Blue manufactured in USA with US and allied components --- ## [SB000004 Compass scale factor adjustment for Here2](https://discuss.cubepilot.org/t/sb000004-compass-scale-factor-adjustment-for-here2/2401)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 34\ **Last updated:** [18 February 2021 13:06 UTC](https://discuss.cubepilot.org/t/sb000004-compass-scale-factor-adjustment-for-here2/2401 "2021-02-18T13:06:21Z")
SB04 Here2 compass scale A new parameter has been added to Ardupilot 4,x and later which will allow a significant improvement on the behaviour of the Here2 magnetometer. So for running a Here2, please recalibrate your … --- ## [SB\_0000005 I2C Storm can cause inflight reboots, Chibios ONLY, not Nuttx (all cube and Pixhawk hardware, including clones and derivatives)](https://discuss.cubepilot.org/t/sb-0000005-i2c-storm-can-cause-inflight-reboots-chibios-only-not-nuttx-all-cube-and-pixhawk-hardware-including-clones-and-derivatives/2419)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 18\ **Last updated:** [24 October 2020 08:11 UTC](https://discuss.cubepilot.org/t/sb-0000005-i2c-storm-can-cause-inflight-reboots-chibios-only-not-nuttx-all-cube-and-pixhawk-hardware-including-clones-and-derivatives/2419 "2020-10-24T08:11:26Z")
CRITICAL Update ALL CHIBIOS Copter USERS MUST USE 3.6.12 or cease flight. Critical Safety Update is in Copter 3.6.12 Update Friday, 13th December. This is a Chibios only issue. Old hardware running old custom or stock… --- ## [SB\_0000006 time to Go Orange](https://discuss.cubepilot.org/t/sb-0000006-time-to-go-orange/4124)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 11\ **Last updated:** [26 July 2020 00:34 UTC](https://discuss.cubepilot.org/t/sb-0000006-time-to-go-orange/4124 "2020-07-26T00:34:25Z")
Reminder to plan for upgrade to cube Orange soon, Orange is the new Long Term Stable (LTS) option. This is not a safety notice, but is critical for people to know. The cube Black sensors are all End Of Life from suppli… --- ## [SB\_0000001 Critical service bulletin for Beta Cube 2.1 (2016)](https://discuss.cubepilot.org/t/sb-0000001-critical-service-bulletin-for-beta-cube-2-1-2016/405)
**Author:** [@philip](https://discuss.cubepilot.org/u/philip)\ **Replies:** 0\ **Last updated:** [16 April 2019 15:49 UTC](https://discuss.cubepilot.org/t/sb-0000001-critical-service-bulletin-for-beta-cube-2-1-2016/405 "2019-04-16T15:49:02Z")
If you have a Pixhawk 2.1 Delivered in 2016, please follow these instructions before further flight. \*\* This does NOT affect the Alpha boards, it does not affect 2.0 boards (SOLO) and does not affect made in 2017 boards …