Bitcraze Forums

Self-test fails all the time, when i power on my CF2.

When connecting to the Crazyflie PC client, I get this from the Console:

---
SYS: Crazyflie is up and running!
SYS: Build 164:0dbbb77772a9 (production1.1) CLEAN
SYS: I am 0x31323832313347012F001D and I have 1024KB of flash!
I2CDEV: Error callback nr: 1024
IMU: MPU9250 I2C connection [FAIL].
I2CDEV: Error callback nr: 1024
I2CDEV: Error callback nr: 1024
I2CDEV: Error callback nr: 1024
I2CDEV: Error callback nr: 1024
I2CDEV: Error callback nr: 1024
I2CDEV: Error callback nr: 1024
I2CDEV: Error callback nr: 1024
I2CDEV: Error callback nr: 1024
I2CDEV: Error callback nr: 1024
IMU: AK8963 I2C connection [FAIL].
I2CDEV: Error callback nr: 1024
IMU: LPS25H I2C connection [FAIL].
EXPBRD: Found 0 memories.
EEPROM: I2C connection [OK].
OW: Found 0.
30 78 42 43 0 50 0 0 0 0 0 0 0 0 0 7D
Status 0

This is an I2C problem when connecting the sensors.
- Is the Crazyflie new of has it been programmed already?
- Can you try to flash the latest firmware release and send the console from this one also?

- Is got the crazyflie in 2016, but it has never been programmed by me.
- I currently don't have a crazyradio (PA) dongle, is there a method to flash it via my android device? Or does it also need a crazyradio pa?

Unfortunatly the only way to flash a new firmware without a Crazyradio is to use the iOS app. So if you can borrow an iPhone or iPad you can flash the latest firmware with it.

So i flashed it to the latest firmware with an iphone, it said it was flashed succesfully but there is no console i can send you. The selftest still fails. Anything else i can do?