I am bit very sad about MC7455 modem. i am unable to update the firmware for the MC7455 modem to the latest V.02.24.05.06
when i try to update to V.02.24.05.06 it still gives me error FAILED to switch BOOT and HOLD mod
can someone please tell me i am unable to put device in boot and hold mode using AT commands
i tried with putty COM25 and COM23 at baud rate of 9600 and 115200 both did not work i mean i cannot see any at command been accepted on these ports
- by the way sierra support engineers( FAE from UK) do not know why this is happening we had a long conversations for nearly 6 months and they do not know why this happens.