No LED on Lattepanda Alpha

If you're having trouble with your LattePanda Alpha & Delta, here's the place to get help.
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Posts: 3
Joined: Thu Mar 25, 2021 1:52 pm

Sun May 02, 2021 6:02 pm

Greetings. I kind of knew it was going to be a risk buying a used Alpha on eBay, but it was working great for a few weeks up until today. I'm in the middle of building a portable console with this (you can see footage here). Today, I was working on an audio solution and was wrapping some cords inside the system, when all of a sudden I heard a noise. Couldn't tell what it was.

The display cables and everything was still properly seated. But I looked on the board and discovered there was no longer any LED activity coming from the board. I connected the official adapter to the USB-C port, nothing. Changed plug outlets, nothing. Tried to do a hard reset, which I guess means holding the power button for 20 seconds. Nothing. Maybe my fingers caused some sort of shock to the board and caused it to be dead?

From the troubleshooting methods I've seen here on the forums, one member mentioned taking out the RTC battery and then putting it back in to reset BIOS settings. But nowhere could I find how to remove the battery. Any advice on how to do this? Please don't tell me I have a dead board...

User avatar
Posts: 3
Joined: Thu Mar 25, 2021 1:52 pm

Mon May 03, 2021 12:34 pm

Update: I just disconnected the battery and reconnected it...all good to go now.

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Site Admin
Posts: 2753
Joined: Wed Jan 20, 2016 9:09 am

Fri May 07, 2021 8:58 am

Hi there
Glad to hear the board is back to work now.
According to your description, it may cause by a current surge or short circuit. Please notice the ground connection when wiring.

The RTC battery is near the USB port. Reconnect it can help the board reset the bios setting and recover from the system halted.

BTW, the model of the RTC battery is CR927
Enjoy Tinkering with LattePanda ! :lol:

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