# PICO LIPO not detected

**URL:** <https://forums.pimoroni.com/t/pico-lipo-not-detected/20017>\
**Category:** Support\
**Created:** [August 11, 2022, 3:59pm UTC](https://forums.pimoroni.com/t/pico-lipo-not-detected/20017 "2022-08-11T15:59:22Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![windy54](https://avatars.discourse-cdn.com/v4/letter/w/e19adc/32.png) [@windy54](https://forums.pimoroni.com/u/windy54)\
**Post date:** [August 11, 2022, 3:59pm UTC](https://forums.pimoroni.com/t/pico-lipo-not-detected/20017/1 "2022-08-11T15:59:22Z")

</div>

a few months ago I purchased a PICO LIPO, I have just tried to us it.

When I connect to my laptop, press the boot switch and cycle power it is not detected and so does not go into boot mode.

I have tried two USBC cables the second has data and power.

Any suggestions how I can fault find?

I have soldered a header on and it looks okay.

Steve

---

<div class="post-metadata">

**Author:** ![Shoe](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@Shoe](https://forums.pimoroni.com/u/Shoe)\
**Post date:** [August 11, 2022, 4:22pm UTC](https://forums.pimoroni.com/t/pico-lipo-not-detected/20017/2 "2022-08-11T16:22:06Z")

</div>

Can you post a photo of your header soldering?

The bootloader which causes the drive to show up as a USB device is hard-wired into the RP2040 chip, so unless you’ve properly fried the chip somehow it should always work. Just to be clear, you’re _holding_ the BOOT switch down while you power cycle the board, right? You shouldn’t release the BOOT button until after you’ve released the power button.

---

<div class="post-metadata">

**Author:** ![windy54](https://avatars.discourse-cdn.com/v4/letter/w/e19adc/32.png) [@windy54](https://forums.pimoroni.com/u/windy54)\
**Post date:** [August 11, 2022, 6:16pm UTC](https://forums.pimoroni.com/t/pico-lipo-not-detected/20017/3 "2022-08-11T18:16:08Z")

</div>

![lipo](https://us1.discourse-cdn.com/flex016/uploads/pimoroni/original/2X/e/e64cebadf1cd51aa668415dbdd030506c8b3417b.jpeg)  
So I am connecting the pico via a cable to my MAC.  
Make sure the power LED is Off.  
Hold BOOT, press power on and then release Boot when the power led is ON.

---

<div class="post-metadata">

**Author:** ![windy54](https://avatars.discourse-cdn.com/v4/letter/w/e19adc/32.png) [@windy54](https://forums.pimoroni.com/u/windy54)\
**Post date:** [August 11, 2022, 6:17pm UTC](https://forums.pimoroni.com/t/pico-lipo-not-detected/20017/4 "2022-08-11T18:17:21Z")

</div>

I have just gone back to my PI4 and tried it and it has worked!!

thanks for your response.