# Brand new Mojo does not work

**URL:** <https://discuss.blues.com/t/brand-new-mojo-does-not-work/3220>\
**Category:** Notecarrier F\
**Created:** [August 1, 2025, 6:17pm UTC](https://discuss.blues.com/t/brand-new-mojo-does-not-work/3220 "2025-08-01T18:17:10Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![CRUSTY](https://avatars.discourse-cdn.com/v4/letter/c/e47c2d/32.png) [@CRUSTY](https://discuss.blues.com/u/CRUSTY)\
**Post date:** [August 1, 2025, 6:17pm UTC](https://discuss.blues.com/t/brand-new-mojo-does-not-work/3220/1 "2025-08-01T18:17:11Z")

</div>

Just got a Blues Mojo, but my Notecarrier F cannot connect to it. I send {“req”:”card.power”} and I get back:”\> {“err”:“you have no mojo {no-mojo}”}. I do certainly have a mojo connected, and connected in the exact order said in the quickstart guide. My firmware is up to date. I have also tried running card.restart and then calling card.power but I get the same result. Any clues as to what’s going on here?

---

<div class="post-metadata">

**Author:** ![RobLauer](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/roblauer/32/1567_2.png) [@RobLauer](https://discuss.blues.com/u/RobLauer)\
**Post date:** [August 1, 2025, 6:21pm UTC](https://discuss.blues.com/t/brand-new-mojo-does-not-work/3220/3 "2025-08-01T18:21:04Z")

</div>

Hi @CRUSTY and welcome to the Blues community!

Do you have a Feather MCU in the socket on your Notecarrier F? If not, that is required since QWIIC is powered from the Feather’s 3.3V rail.

---

<div class="post-metadata">

**Author:** ![CRUSTY](https://avatars.discourse-cdn.com/v4/letter/c/e47c2d/32.png) [@CRUSTY](https://discuss.blues.com/u/CRUSTY)\
**Post date:** [August 1, 2025, 10:48pm UTC](https://discuss.blues.com/t/brand-new-mojo-does-not-work/3220/4 "2025-08-01T22:48:44Z")

</div>

Hi there. DUH. This was the problem, thanks for helping out!

---

<div class="post-metadata">

**Author:** ![chuckgiddens](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/chuckgiddens/32/1635_2.png) [@chuckgiddens](https://discuss.blues.com/u/chuckgiddens)\
**Post date:** [August 2, 2025, 4:51pm UTC](https://discuss.blues.com/t/brand-new-mojo-does-not-work/3220/6 "2025-08-02T16:51:56Z")

</div>

Well that stinks. I dont want to use a Feather. I just wanted to recharge using Solar. Guess I will build my own board and toss the F in the trash.

---

<div class="post-metadata">

**Author:** ![zfields](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/zfields/32/29_2.png) [@zfields](https://discuss.blues.com/u/zfields)\
**Post date:** [August 4, 2025, 2:14am UTC](https://discuss.blues.com/t/brand-new-mojo-does-not-work/3220/7 "2025-08-04T02:14:59Z")

</div>

Hi @chuckgiddens

Before you spin up that board, you might try running jumper wires from the MoJo’s I2C (the pads are beside the `LOAD` JST connector or you can use the [Qwiic breakout cable from Adafruit](https://www.adafruit.com/product/4209)) to the `N_SDA`, `N_SCL`, and `GND` pins on the Notecarrier-F.

I’m away from my lab, so I haven’t confirmed that works, but based on [the schematic for the Notecarrier-F](https://github.com/blues/note-hardware/blob/master/Notecarrier-F/v1.3/100275_NOTECARRIER-F_Rev-11.PDF), I’m almost certain it would.

Best,

Zak