No power lattepanda alpha

If you're having trouble with your LattePanda Alpha & Delta, here's the place to get help.
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If you have not found a solution, post a new issue. To speed up the process please let us know:
- Have you tried the solutions listed above?
- What board are you using? Standard (2GB RAM/32GB eMMC) or Enhanced (4GB RAM/64GB eMMC)?
- Have you tried any other solutions?
- How long have you had your board for?
- When did you first boot your board?
- Did it work ok before the issue occurred or has the issue always been there?
- Use images and videos to help us understand the issue where possible

If you are seeking RMA:
- Please open a new topic rather than hijacking someone else's thread
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You can find the RMA guide [here]

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User avatar
bureaucrat34
Posts: 5
Joined: Sat Nov 24, 2018 4:41 am

Wed Jul 22, 2020 5:42 am

Hi Guys,

My lattepanda alpha 864 failed about 6 months back, I've not had time to look into or diagnose till now.

There are no signs of life, no red or blue leds lit when applying power from either the supplied usb c adapter nor an 3rd party like the usb c charger from a Macbook pro, both chargers are working fine with other devices

The only thing I noticd which is a bit odd, the bga directly behind the wifi/Bluetooth recieved appears to have crack in it, almos tlike it blew out. What is this chip, what else can I do to diagnose the fault.

The board was bought on the 19/10/18 and its had all of about 3 or 4 months of actual use in that time.
See attached photo
Attachments
15953965050515394405324288911578.jpg
Cracked chip
15953965050515394405324288911578.jpg (1.89 MiB) Viewed 576 times

User avatar
ccs_hello
Posts: 623
Joined: Sat Oct 13, 2018 9:16 pm

Wed Jul 22, 2020 12:23 pm

That's an USB 2.0 hub IC Genesys GL850G-OHG QFN28 pakage.

User avatar
bureaucrat34
Posts: 5
Joined: Sat Nov 24, 2018 4:41 am

Fri Jul 24, 2020 10:38 am

good to know, anything i can do to diagnose whats wrong, whats failed? am i able to send it in for refurbishment instead?

User avatar
ccs_hello
Posts: 623
Joined: Sat Oct 13, 2018 9:16 pm

Sat Jul 25, 2020 2:22 pm

Many failure modes and the probably initial condition causing the issues can be very helpful.
(E.g., USB Hub IC got zapped might be caused by power surge, etc.)
I'd suggest contacting LP Tech Support.

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