NIIMBOT firmware collection
Use only the firmware for your printer model.
Do not use different major firmware versions (for example, if you have 5.14, do not flash 6.x).
Usually major firmware version should match the major hardware version. Example: FW 4.13, HW 4.01.
Your device will be bricked if you ignore lines above. Have a nice day.
Flash with
niim.blue
. Everything you do is at your own risk.
/testing/B21S/
File Name
↓
File Size
↓
Date
↓
Parent directory/
-
-
B21S_31.05.bin.txt
199 B
2025-Nov-05 19:47
B21S_1.10.bin.txt
298 B
2025-Nov-05 19:47
B21S_31.05.bin
79.8 KiB
2025-Nov-05 19:47
B21S_1.10.bin
194.0 KiB
2025-Nov-05 19:47