''Unflashable'' SKR v1.4 turbo board, help

General Discussion
1

need some help, first, trying to see if the board is still alive and if so, flashing and getting a connection to the board

board: btt skr 1.4 turbo
host: btt cb1
-host is already configured and runs 1 other printer, has 3 instances configured, everything working fine

so, recently i’m putting together a custom printer and decided to try and use a skr 1.4 turbo board that i got, don’t even remember where, a whiiiile back (but was stored correctly and is in perfect shape, not a spec of dirt on it) so i got the got plugged in a power supply, turned it on and the board seems to also turn on, the corner red light turns on and so far, so good, but then, the issues:

-when i turned it on for the first time, connected to the host, ssh into into, ran lsusb and nothing is detected (was connecting via the single usb port in the board

-Decided to build and flash the firmware via sd and see what happens, so i built, via ‘make’ command, using all the correct configs, used winscp to fetch the .bin file, renamed it as required on the btt github, turned off the board, SD on, waited a while, tried to connect, nothing, running lsusb returns no results

not sure what to do next

2

Follow Issues flashing the printer board.
For this board, the klipper.bin file needs to be renamed to firmware.bin. After a successful flash, it gets automatically renamed to firmware.CUR on the SD card. So, check the SD card after flashing the board.

3

If renaming to firmware.bin doesn’t work, try renaming to FIRMWARE.bin (all caps). That’s what I had to do on my SKR Mini E3 V2.

I remember reading somewhere that your microSD card shouldn’t be large. I used a 16GB card to flash it. What size are you using?

4

Just checked the sd card i used on the last flashing attempt, the firmware file did not change to .cur indeed, it’s still .bin

1 Like
5

will try, be back in a sec

1 Like
6

well, wasn’t ‘‘a sec’’ but i jus tried this, still nothing no usb detected, nothing changed

7

i tried firmware.bin FIRMWARE.bin and both options return the same results, no usb detected still and when i put the sd on the computer, the file still reads as a .bin not .cur
tried also 2 different sd cards, one 2gb, another 128mb, nothing

8

it seems like the board isn’t reading the sd/isn’t flashing correctly
could it have something to do with the bootloader? or did i miss something else?

also, don’t know if it changes anything, but one i got this board, i also got the btt display, think is a tft35 with that expansion board that had some other sd/usb ports, currently i don’t have this screen/board connected to the main board didn’t plan to use a screen on it, so all of these tests are being done with the board alone

9

You might want to try the process outlined here: CanBoot: Flash BTT SKR 1.3 / 1.4 / 1.4 Turbo

10

gave it a read, seems a bit complex but i guess it’s my only option, but since i dont have any of the itens necessary and they don’t sell locally, ill need to order via ali, might take a while, but once they get here, ill try that, just to see if i can even save this board, already got another one for my current project anyways, but ill try that, if it works, awesome, if it doesn’t guess ill need dispose of a pretty-much-new-never-used skr 1.4 :confused:
tks anyways, once everything arrives, ill get back here