Issue upgrading SIP-T53W firmware, plus

[voxclear]

The SBC phone, a T53W, has v96.85.0.95 firmware and would not upgrade via 3CX instance. Logged into the phone but the upgrade would not take: "Firmware update failed, ROM Invalid" and it rebooted but failed registration. Factory reset the phone, then rebooted... it did not provision. Please advise, all hard phones are down. Thanks.

 

[CentrexJ]

The SBC phone, a T53W, has v96.85.0.95 firmware and would not upgrade via 3CX instance. Logged into the phone but the upgrade would not take: "Firmware update failed, ROM Invalid" and it rebooted but failed registration. Factory reset the phone, then rebooted... it did not provision. Please advise, all hard phones are down. Thanks.

This link will help: https://support.yealink.com/en/portal/knowledge/show?id=67ea8ab413440e4c2e145270

 

[voxclear]

This link will help: https://support.yealink.com/en/portal/knowledge/show?id=67ea8ab413440e4c2e145270

Genius!

 

[Alphabetic]

Stung by this before.. be handy to have this link on the 3CX Yealink page

 

[voxclear]

Now I have a T53W that I've put through this progressive firmware upgrades and it's on 96.87.0.16. It's past my bedtime so maybe it's just that but no factory reset or reboot or Auto Provision will get it to provision. What am I missing!?! TIA

 

[SteveITS]

IP blocklisted?

 

[JohnS_3CX]

Once you have your phone on the correct firmware do the following:

1. Delete it from 3CX.
2. Add it back to 3CX, as a router phone (if you don't have a dedicated SBC there).
3. Check your Event log that the RPS entry was delivered successfully!
4. Now factory reset and wait.

Currently there is no RPS entry for the FQDN you selected, so pay special attention to that area.