Marlin_Ender3v2 VS Marlin

From what I'm reading, mriscoc's firmware appears to be a bit more polished and offers even more features than Jyers. Have a look at their page - https://github.com/mriscoc/Marlin_Ender3v2/releases/latest From what I'm reading you can change the bed dimensions via gcode command and also in the advanced settings menu. I'm going to try this route despite having already downloaded all the software to compile my own jyers firmware..

Download the bin file from here https://github.com/mriscoc/Marlin_Ender3v2/releases/latest.

By any chances are you using the Jyers firmware? Because that firmware works horrible with a lot of probes. Try the Professional Firmware, I never had a probe crashing problem with that one.

Once you tram the bed, are you doing a mesh? I use UBL (Unified Bed Leveling) to do a 15x15 mesh that takes approximately 225 points of readings. If you are using Jyers firmware, which I highly recommend) or Professional firmware by mriscoc, both rimwares based on Marlin but are more rich in features than the base Marlin firmware, you can view the mesh on your display and see where the high/low spots are. The mesh can be saved to your EEPROM and used without having to redo the leveling process all the time. This is, of course, providing that your bed is not shifting and you wait for the bed to cool down before removing the prints so it doesn't mesh of the leveling. I am not sure about the Professional firmware (because I don't use that one) but I do know the Jyers firmware has a bunch of precompiled .bin files for all the boards and for many different configurations.

https://github.com/Jyers/Marlin/releases or https://github.com/mriscoc/Marlin_Ender3v2/releases

I am using a modified Jyers firmware from here: https://github.com/mriscoc/Marlin_Ender3v2

i use https://github.com/mriscoc/Marlin_Ender3v2 and i am very happy with it

https://github.com/jyers/marlin/releases/ - Select E3V2-BLTouch-XxX-v4.2.X-v2.0.1.bin with X being either the amount of probing points or the version of your mainboard.

Couldn't tell you, but the Jyers firmware hasn't been updated since November 2021 according to the Github page: https://github.com/Jyers/Marlin

I glued 2 5p DuPont connectors back to back and put a red wire for vcc, a black wire for ground, a yellow wire for tx, and a green wire for rx (the colors are irrelevant, just for making sure the correct pins are connected to the pi) according to this schem: https://github.com/Jyers/Marlin/discussions/814

As it is a Creality board then Jyers might be better or even Mriscoc as it is more up to date.

Probably from there: https://github.com/Jyers/Marlin/discussions/814

I switched to Klipper long time ago, but even back then Creality FW was trash and Jyers was fw to use, but it's outdated now. I think most people use the "Profesional" fw now. It should not be hard to find guide on YT.