SainSmart Coreception Troubleshooting Manual page 3

the Coreception 300 printer.
Oldest version of marlin 2.0 based firmware. Most similar to 2.3/2.4 stock firmware.
here to download.
Most current stable version of the MKS based on Marlin 2.0.
Marlin 2.0 new fork to add a colorful GUI.
5. How do I perform the firmware upgrade?
·Download the firmware
·Extract the contents of the firmware to a micro SD card.
·Optional you can set configuration items via the robin_nano35_cfg.txt file. This file is
required even if you do not perform any customization.
·Place the sd card in the printer ensure that it is powered off.
·Start the printer and the firmware upgrade will begin.
Common issues with firmware upgrades
·If the firmware completes but you do not see proper icons after it completes.
again or try a different SD card. Seems to be predominately on slower SD cards
·If you complete the upgrade process and it powers on but then powers off again. Repeat
the firmware again. Check to ensure the configuration file is present on the card.
6. Temp on bed or extruder shows negative or extreme numbers.
·Most common issue is that the connection is loose or disconnected.
·Extruder should be in the black e0 thermistor connector. This is very close to the wall on
the board when it is installed in the coreception 300.
·Hotbed should be in the white connector on the right edge also very close to the edge
when installed in the coreception 300.
·The extruder thermistor is connected to the VGA breakout on the gantry (where the VGA
cable connects behind the extruder). Check the connection there to ensure it is firmly
plugged in and there are no broken or bare wires.
·If all connections are in place and not broken wires are observed it may be a component
failure.
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