Xenon won't stay online long enough to flash RC26

UPDATE: I’ve uploaded new binaries that enable logging from an ISR.

I would appreciate if you could flash the following debug system firmware. They will automatically log on Serial1 @ 115200, you should not instantiate Serial1LogHandler in the user application. Unfortunately we cannot reliably log from an ISR to Serial. If you don’t have an UART-USB adapter, you can use another device running a simple app and connecting its RX to TX of the device being debugged.

SYSTEM_MODE(MANUAL);
void setup(void) {
    Serial1.begin(115200);
    Serial.begin();
    while (true) {
        while (Serial1.available() > 0 && Serial.availableForWrite() > 0) {
            Serial.write(Serial1.read());
        }
    }
}