Warranty question M5stack is dead

ispybadguys

I plugged the M5Stack into a USB power source and measured the power pins with a DVM. The Battery pin measures 4.2V, the 3.3 volt pin measures 3.3 volts, and the 5V pin 5 volts. But the device does not power up.

ispybadguys

I tried some additional troubleshooting. I removed the bottom battery slice and plugged the top slice into my computer. There is no connection to the device so nothing can be uploaded. The display is also dark in this configuration and with it plugged into a USB charger.

ispybadguys

I seems that the problem resolved itself. This is very strange. I removed the battery slice several times but this did not resolve the problem. I even removed it once for at least a day. Finally I removed that battery slice and I let the unit sit for several days without the battery. When I reconnected the battery it started working link nothing ever happened.

m5-docs

@ispybadguys A Power supply problem, please contact to Hardware Engineer of M5Stack
tech@m5stack.com

Kabron

I also have a question. I got M5Fire in M5Bala set.
Half of USB-C does not work, i.e.: in one position PC does discover device, while in 180 degrees opposite - does not.
Is it a kind of warranty case?

I wrote to official M5Store seller on aliexpress, but got no answer.

ajb2k3

@kabron get a new lead, I get this with an expensive leads.

Kabron

@ajb2k3 在 Warranty question M5stack is dead 中说：

@kabron get a new lead, I get this with an expensive leads.

You mean to try another cable? I tried all I have.

ajb2k3

@kabron I brought 4 different ones before I found one that works in any direction.
I ended up paying £20 for a lead and that only works if the usb C connector is in a certain rotation.

Yes I brought 4 leads spending over £30 just on leads!

m5-docs

Hi, kabron @kabron Does your Type-C cables work now?

Kabron

@watson 在 Warranty question M5stack is dead 中说：

Hi, kabron @kabron Does your Type-C cables work now?

It works in only one direction(position).

m5-docs

@kabron

Hi

You means that only one direction(positive) which USB-C cables inserted to PC, and PC will discover usable Serial Port.
0_1542611266173_TIM截图20181119150225.png

If you turn USB-C cable around 180 degrees, the serial port will disappear.

Do I descripte your phenomenon correctly?

Kabron

Do I descripte your phenomenon correctly?

Absolutelly correct.
I have to mark socket sides of all my cables