<![CDATA[M5Stack Gray reboots when USBC power removed]]>Hi all, I have purchased 4 units of M5 Stack, those gray color with MPU9250 to migrate some of my projects. It is a great product. However, what I find to be a showstopper is when I unplug the USB-C cable, the M5 reboots. It does no matter the battery is fully charged or not. The M5 are useless this way as I plan to use in a car, and the USB power comes from a converter using switched 12V wire. All 4 units behaves the same.

I would like to know if this is a IP5306 issue, or a USB DTR/RTS issue. Also the way to fix this.
Without this issue, it is the perfect encased unit for my projects.

]]>https://community.m5stack.com/topic/1161/m5stack-gray-reboots-when-usbc-power-removedRSS for NodeWed, 29 Apr 2026 08:45:09 GMTTue, 30 Jul 2019 19:40:18 GMT60<![CDATA[Reply to M5Stack Gray reboots when USBC power removed on Tue, 27 Aug 2019 10:33:22 GMT]]>@barky919 said in M5Stack Gray reboots when USBC power removed:

Thank you, will try today.

it works??

]]>https://community.m5stack.com/post/5315https://community.m5stack.com/post/5315Tue, 27 Aug 2019 10:33:22 GMT<![CDATA[Reply to M5Stack Gray reboots when USBC power removed on Thu, 22 Aug 2019 11:51:48 GMT]]>Thank you, will try today.

]]>https://community.m5stack.com/post/5274https://community.m5stack.com/post/5274Thu, 22 Aug 2019 11:51:48 GMT<![CDATA[Reply to M5Stack Gray reboots when USBC power removed on Sun, 18 Aug 2019 08:40:03 GMT]]>Just found this on Twitter: https://mobile.twitter.com/lovyan03/status/1162512607279890434

2200μFのコンデンサをM5Stackの3v3とGNDの間に入れてUSB挿抜テスト。ノーマルボトムでは成功、USB抜いてもリセットせずにそのまま動作しました。

Using google translate:
Insert a 2200μF capacitor between 3v3 of M5Stack and GND for USB insertion / extraction test. It succeeded in the normal bottom, and it worked as it was without resetting even if USB was removed.

]]>https://community.m5stack.com/post/5209https://community.m5stack.com/post/5209Sun, 18 Aug 2019 08:40:03 GMT<![CDATA[Reply to M5Stack Gray reboots when USBC power removed on Sat, 17 Aug 2019 08:10:45 GMT]]>II have same problem. Date is 2018.3 on board

]]>https://community.m5stack.com/post/5199https://community.m5stack.com/post/5199Sat, 17 Aug 2019 08:10:45 GMT<![CDATA[Reply to M5Stack Gray reboots when USBC power removed on Sat, 03 Aug 2019 05:18:50 GMT]]>@barky919 Please contact M5Stack support and tell them your issues including this reference date.

]]>https://community.m5stack.com/post/4991https://community.m5stack.com/post/4991Sat, 03 Aug 2019 05:18:50 GMT<![CDATA[Reply to M5Stack Gray reboots when USBC power removed on Fri, 02 Aug 2019 20:48:35 GMT]]>Tnx;
It has "2018.3" on the small white square.

]]>https://community.m5stack.com/post/4985https://community.m5stack.com/post/4985Fri, 02 Aug 2019 20:48:35 GMT<![CDATA[Reply to M5Stack Gray reboots when USBC power removed on Fri, 02 Aug 2019 12:01:16 GMT]]>On the main pcb is a white square with a date on it. what does you have written there?

]]>https://community.m5stack.com/post/4973https://community.m5stack.com/post/4973Fri, 02 Aug 2019 12:01:16 GMT<![CDATA[Reply to M5Stack Gray reboots when USBC power removed on Fri, 02 Aug 2019 11:49:03 GMT]]>I have tried jumping the Reset pin to +3.3V, but it still reboots when I unplug the USB cable:

  • Internal battery; powered on. Connect the USB cable = no reboot.
  • Internal battery; powered on. Disconnect the USB cable = immediate reboot.
]]>https://community.m5stack.com/post/4972https://community.m5stack.com/post/4972Fri, 02 Aug 2019 11:49:03 GMT