Firmware version and I2C voltage - APM 2.6


I have a APM 2.6 FC that is behaving unexpectedly. I can load the latest firmware (AC3.2.1) but it will not boot (i get the error AP_Baro_MS5611 did not initialize for 1000ms). Initially I though it was a faulty 3.3v regulator as the voltage across the I2C +/- was 4.6v - So I replaced the regulator, however the issue still exists.

The strangest part is this - if I load any version of the AC firmware prior to 3.0 the controller works, it boots and i get 3.3v across the I2C.

Has anyone else experienced this? Does anyone know of a resolution?

I wish I knew how dead this board is before I bought it :slight_smile: came here as I faced the same problem but alas! there is no reply