Hi,
I have an issue with PBS4222 femtocell, where I tried to upgrade firmware to BaiBS_QRTB_2.6.2.IMG. It seems that firmware file was incompatible and femtocell boots, but no web interface or anything loads. Link on the ethernet ports is blinking, so it is not a hardware issue.
I have seen on the web interface of the femtocell, that there is an option to rollback firmware, but as I said - no web interface is running currently.
My question - Is there any option to boot to debug mode and to restore previous firmware or to unbrick current device from the current state of femtocell?