We've had a helluva time upgrading UE firmware over the air. It was
worse with Wimax. On Wimax it was more like 75% of the time we would
lose the channel scan table and have to go on site to add it back in.
It became SOP to leave the operator password at default so we had the
option of having the customer log in and fix the scan table for us.
I think we've had more success since going to LTE. However, failed
firmware updates was one of the incentives to set up a dedicated
management bearer. I was hoping it would help with these things. We
haven't pushed out an update recently enough to say whether it helped.
-Adam
------ Original Message ------
From: "Shayne Lebrun" <[email protected]>
To: [email protected]
Sent: 2/8/2017 9:14:36 AM
Subject: [Telrad] UE upgrade failure rate
Does anybody else experience a ten to fifteen percent failure rate when
upgrading UEs? The behavior is, you upgrade the firmware, reboot, and
the device doesn’t come back. Logging into the UE’s management from
LAN, you’ll see it’s stuck in ‘device init.’ Defaulting the unit and
rebooting allows it to boot and attach.
We’re not using the residential gateway device or anything, and the
only config we put in is device name, SNMP and ACS settings. Sometimes
we hardcode the client’s device in the DHCP server, to turn on DMZ to
allow port forwarding, but that doesn’t seem to be a causal factor.
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