nella Ender 3 V2 ci sono 2 firmware, per il dispaly e per la scheda madre,
e qui ti dice come fare, prima lo schermo e poi la scheda madre:
"Display firmware update:
1. Format the TF card on the computer side, and select 4096 for the allocation unit size.
2. Put the file "private、TJC_SET、DWIN_SET" into the TF card.
3. Turn off the printer and insert the TF card into the card slot on the back of the screen.
4. Reboot and wait for the update to finish.
5. After finishing the update, remove the TF card and delete the files inside.
Mainboard firmware update:
1. Format the TF card on the computer side, and select 4096 for the allocation unit size.
2. Put the firmware file "GD-Ender-3 V2-Marlin2.0.8.2-HW-V4.2.2-SW-V1.0.7_E_N_BLTouch.bin" into the root directory of TF card.
3. Turn off the printer and insert the TF card into the card slot on the motherboard.
4. Reboot and wait for the update to finish.
5. After finishing the update, remove the TF card from the motherboard slot and delete the bin file inside."