Not all motors idle when armed

[jlt206]

Hi, I have a FlyWoo 745 AIOv3 with Inav Inav 8.01 on a small quad.

I can make the motors work manuall in ESC configurator and the Outputs tab with no issues. However, when I come to arm the quad, sometimes one or two motors spin up, but not consistently and then they sometimes run rough once started.

This seems like some kind of bug with the ESC comms maybe?

After some further investigation, and trials, I found that even though everyinth appears to be working, I checked the CLI:Status and found that I have I2C Errors: 50.

Here's the readout, without the battery connected.

status

INAV/FLYWOOF745 8.0.1 Mar 28 2025 / 09:55:23 (ae47bcb)
GCC-13.2.1 20231009
System Uptime: 18 seconds
Current Time: 2041-06-28T02:04:00.000+01:00
Voltage: 0.00V (0S battery - NOT PRESENT)
CPU Clock=216MHz, GYRO=MPU6000, ACC=MPU6000, BARO=SPL06, MAG=QMC5883, PITOT=VIRTUAL
STM32 system clocks:
SYSCLK = 216 MHz
HCLK = 216 MHz
PCLK1 = 54 MHz
PCLK2 = 108 MHz
Sensor status: GYRO=OK, ACC=OK, MAG=OK, BARO=OK, RANGEFINDER=NONE, OPFLOW=NONE, GPS=OK
ESC Temperature(s): Motor Count = 4
ESC 0: 0°C, ESC 1: 0°C, ESC 2: 0°C, ESC 3: 0°C,
Stack size: 6144, Stack address: 0x20010000, Heap available: 1716
I2C Errors: 50, config size: 13463, max available config: 32768
ADC channel usage:
BATTERY : configured = ADC 2, used = ADC 2
RSSI : configured = ADC 3, used = ADC 3
CURRENT : configured = ADC 1, used = ADC 1
AIRSPEED : configured = none, used = none
System load: 26, cycle time: 507, PID rate: 1972, RX rate: 9, System rate: 9
Arming disabled flags: NAV RX CLI
WAITING FOR GPS FIX
OSD: MSP DisplayPort: DJI Compatability mode (HD) [53 x 20]
VTX: not detected
GPS: HW Version: UBLOX10 Proto: 34.09 Baud: 115200
SATS: 0
HDOP: 99.990
EPH : 99.990 m
EPV : 99.990 m
GNSS Capabilities:
GNSS Provider active/default
GPS 1/1
Galileo 1/1
BeiDou 0/1
Glonass 0/0
Max concurrent: 3