mk 2.5s printer died after updating to the new firmware
 
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mk 2.5s printer died after updating to the new firmware  

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Leapnlarry
(@leapnlarry)
Active Member
mk 2.5s printer died after updating to the new firmware

I updated to the newest firmware last night, FIRMWARE 3.12.1

I have updated my firmware many times since i got this original MK2 in 2016 and upgraded to the 2.5s years later

I have the 1.3 rambo and I am using the correct firmware to flash, prusa3d_fw_MK25S_3_12_1_5686_RAMBo13a_en-cs.hex

everything was fine and had a successful calibration and 3 hour print afterwards

Turned off the machine for the night.

in the morning the lcd screen did not come on, it was flashing, the whole screen was flashing.

I was able to connect to prusa slicer and connect to the firmware interface,

It recognized the com port, tried to re-install the current and the last firmware and it failed.

when connected to usb the yellow led is flashing on the board, otherwise the red led is on.

I also tried a reset but hitting X then holding the control knob down for 3 sec, but since there is nothing on the screen i dont know if it reset (no beep)

Its getting power but otherwise completely dead.  Any thought of other things I can try.

 

I have attached a screen print of the error from flashing

 

This topic was modified 1 year ago by Leapnlarry
Posted : 27/02/2023 3:16 pm
Leapnlarry
(@leapnlarry)
Active Member
Topic starter answered:
RE:

here are two photos of the screen flashing one blank no light, one blank bright light, it flashes every couple of seconds

Is my rambo dead or is my LCD damaged?

This post was modified 1 year ago by Leapnlarry
Posted : 27/02/2023 3:39 pm
Leapnlarry
(@leapnlarry)
Active Member
Topic starter answered:
RE: mk 2.5s printer died after updating to the new firmware

here are two photos of the screen flashing one blank no light, one blank bright light, it flashes every couple of seconds

Is my rambo dead or is my LCD damaged?

Posted : 27/02/2023 4:17 pm
Hello
(@hello)
Noble Member
RE: mk 2.5s printer died after updating to the new firmware

Check ribbon cables the ones connecting to the lcd I think there either not pluged In propally or damaged you can see how back light on but no data transfer or it could be einsy not out putting 

Please help me out by downloading a model it's free and easy but really helps me out https://www.printables.com/@Hello_474427/models

Posted : 28/02/2023 7:43 am
Leapnlarry
(@leapnlarry)
Active Member
Topic starter answered:
RE: mk 2.5s printer died after updating to the new firmware

I pulled and checked both ribbon cables at both ends but still nothing.  I am starting to think it is either a bad LCD or bad rambo.  I have to keep printing so i ordered an MK3, lets see if its better than my 8 year old MK2/2.5.  I also ordered a rambo and LCD for the 2.5 just to see it that is the problem.

Posted : 28/02/2023 3:18 pm
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