After replacement hotend kit install, squares on screen, cannot factory reset, can't open com port, no response
I've changed my hotend before and have rebuilt my extruder a few times with no issues. This time, I'm getting all white squares on the display, it won't factory reset, even though I can see the printer on my PC over USB, the PC fails to communicate on the port (com3) when I try to flash firmware. I have removed my rpi, but no luck. I have thoroughly checked the cables, tried swapping the display cables, and checked the three fuses, but everything looked good. I also don't get a clicking sound when I press the wheel or the X. The Prusalink webpage says the printer is unavailable.
Help!
RE: After replacement hotend kit install, squares on screen, cannot factory reset, can't open com port, no response
Un plug every wire unscrew the power wires for heat bed only wire connected should be ones needed for power now reconnect lcd cables and turn einsy on photos of what happens after that
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If all the electrical connections are good at both ends you may have broken a wire while working on it - if you have a multimeter check the continuity of every wire you can reach.
Cheerio,
RE:
Started disconnecting wires and checking power as I go, eventually getting the display showing the boot logo as it should. Now to break out the meter and start checking connections. Actually, I'll just start plugging stuff in until it flakes out...if it flakes out after connecting everything.
If all the electrical connections are good at both ends you may have broken a wire while working on it - if you have a multimeter check the continuity of every wire you can reach.
Cheerio,
RE: After replacement hotend kit install, squares on screen, cannot factory reset, can't open com port, no response
Connect all back except the hotend heater cartridge still working plug that In see if it works then
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
RE: After replacement hotend kit install, squares on screen, cannot factory reset, can't open com port, no response
I just started reconnecting stuff until it failed. Parts fan has a short, which I did notice the wires a little askew yesterday. I'll resolder the contact.
Thx
Connect all back except the hotend heater cartridge still working plug that In see if it works then
RE: After replacement hotend kit install, squares on screen, cannot factory reset, can't open com port, no response
Glad you found a fix
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
RE:
Found a tiny amount of frayed ground wire on the fan bridging the pos. Separated them and added a small bead of silicon to hold them in place. Everything works again.