bigtreetech / bigtreetech/EBB

Brand new SB2240 DEAD.

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#55 1 comment 0 reactions 0 assignees View on GitHub
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Description

So i just bought SB2240 directly from BTT site, unboxed it and plugged straight to the USB cable remembering to put the 5V jumper on. I wanted to enter the DFU, but nothing is happening after holding the BOOT and clicking the reset button. My POWER and STATE LEDs are all the time ON. No matter what.

Tried several PCs including my rPi, several cables. No luck so far.

It seems like it attempts to connect, but according to dmesg there is something nasty going on:
Screenshot 2023-05-23 at 23 25 51

Any suggestions?

Contributor guide

No contributing guide indexed for this repository

Research direction

Start with the dmesg output and the SB2240 BOOT/reset DFU procedure described in the report, comparing the behavior across the listed PCs, Raspberry Pi, and cables. Done means determining whether the board enumerates correctly and documenting whether the failure is a connection, DFU, or hardware issue.

Written by the indexing model from the issue text.

Assessment

Tech stack
linux, raspberry-pi
Domain
embedded-iot, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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