# Here 4 Blue Can1 Can2 wiring **URL:** \ **Category:** Here GPS\ **Created:** [10 August 2026 14:06 UTC](https://discuss.cubepilot.org/t/here-4-blue-can1-can2-wiring/17789 "2026-08-10T14:06:23Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![KFlucas937](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/kflucas937/32/7441_2.png) [@KFlucas937](https://discuss.cubepilot.org/u/KFlucas937)\ **Post date:** [10 August 2026 14:06 UTC](https://discuss.cubepilot.org/t/here-4-blue-can1-can2-wiring/17789/1 "2026-08-10T14:06:23Z")
I’m hoping I can get this answered soon before installing the Here4 Blue. My issue is the color wires mentioned in the manual are Green, Blue, White, Grey. Is that the order they should be in starting with pin 1? Pin1 = Green Pin2 = Blue Pin3 = White Pin4 = Grey I ask because the connector on the Here4 Blue I recently received is wired a little differently with pins 2 & 3 (blue, white) swapped. Pin1 = Green Pin2 = White Pin3 = Blue Pin4 = Grey Or is it the Green and Gray wires are swapped? ![Notes_260810_100259_81e](https://discuss.cubepilot.org/uploads/default/original/2X/7/7351c1a3c87a260492a31310b115965bdff25b0a.png) ![20260809_165233](https://discuss.cubepilot.org/uploads/default/original/2X/6/650d9b5df8c767838bd6f20fdb792682a3bb084b.jpeg) Also, is my Can2 connector wired correctly, Pin2 = Orange, Pin3 = Brown ---
**Author:** ![KFlucas937](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/kflucas937/32/7441_2.png) [@KFlucas937](https://discuss.cubepilot.org/u/KFlucas937)\ **Post date:** [12 August 2026 14:29 UTC](https://discuss.cubepilot.org/t/here-4-blue-can1-can2-wiring/17789/2 "2026-08-12T14:29:52Z")
Ok! I guess I can open the Here4 Blue and figure it out with these images: ![IMG_20260812_102112](https://discuss.cubepilot.org/uploads/default/original/2X/6/6638f2cae409ea1efc1e00032e5da5ee3185a7ba.jpeg) ![IMG_20260812_102118](https://discuss.cubepilot.org/uploads/default/original/2X/2/2472f8c131671bf42aeb355d7c507ffa1a5f9443.jpeg) ![IMG_20260812_102844](https://discuss.cubepilot.org/uploads/default/original/2X/3/3c424e4ade0482f75ae2273e7296b7e086b3c46e.jpeg) ---
**Author:** ![KFlucas937](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/kflucas937/32/7441_2.png) [@KFlucas937](https://discuss.cubepilot.org/u/KFlucas937)\ **Post date:** [12 August 2026 14:46 UTC](https://discuss.cubepilot.org/t/here-4-blue-can1-can2-wiring/17789/3 "2026-08-12T14:46:15Z")
Does opening the Here4 Blue void any warranties? If it does, can someone from CubePilot or just someone who knows, provide an answer. PLEASE!!! ---
**Author:** ![Mish](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/m/e47774/32.png) [@Mish](https://discuss.cubepilot.org/u/Mish)\ **Post date:** [13 August 2026 05:14 UTC](https://discuss.cubepilot.org/t/here-4-blue-can1-can2-wiring/17789/4 "2026-08-13T05:14:48Z")
Check the image you attached of the plug, noting which side the clip is on. Your picture under it is in the same orientation (clip down). 1: 5V, Grey 2: CAN\_H, Blue 3: CAN\_L, White 4: GND, Green ---
**Author:** ![xfacta](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/x/5f8ce5/32.png) [@xfacta](https://discuss.cubepilot.org/u/xfacta)\ **Post date:** [13 August 2026 10:16 UTC](https://discuss.cubepilot.org/t/here-4-blue-can1-can2-wiring/17789/5 "2026-08-13T10:16:09Z")
This is what I’ve found: > [@SB\_0000010 Mandatory Here4 bootloader update before further flight](https://discuss.cubepilot.org/t/sb-0000010-mandatory-here4-bootloader-update-before-further-flight/15630/17): > > All of the Here4’s I’ve seen so far, the **CAN1** connector is the one with wires green, white, blue, grey, and should be used for performing the update > > ![image](https://discuss.cubepilot.org/uploads/default/original/2X/5/5367d296796d0ab60e9fe4a466e1ee05a96ed31f.png) > > After the update the CAN2 port (red, orange, brown, black) **will NOT work**. Same as other sources