How to test your M5SticV RGB LED

M5StickV_rgb_led_test.py

from modules import ws2812
from fpioa_manager import *
# 6 --> red
# 7 --> white
# 8 --> blue
# 9 --> green
fm.register(6)
class_ws2812 = ws2812(6,130)
r=0
dir = True
while True:
    if dir:
        r += 1
    else:
        r -= 1
    if r>=255:
        r = 255
        dir = False
    elif r<0:
        r = 0
        dir = True
    for i in range(130):
        a = class_ws2812.set_led(i,(0,0,r))
    a=class_ws2812.display()

When you can not run the sample code here: https://docs.m5stack.com/en/quick_start/m5stickv/maixpy
try the above.

For firmware : M5StickV_Firmware_v5.1.2.kfpkg