Hi, @ivesmartinsbr. Hope you're doing fine. I have exacly the same doubt/issue of yours. Did you have some update on this?Thanks in advance.

Hello everyone,Here is the final solution provided by TAC and forwarded by @CJinNV :Please try the upgrade via USB stick using the instructions below:1. Download code from Webex site:https://binaries.webex.com/SparkboardProductionLatest/2019030612000...

Hi, @CJinNV Thanks a lot. You saved my Board. SparkBoard now promoted to Webex Board and working with the last RoomOS version.Thanks again and good luck for you..

Hi, @CJinNV ,Thanks for helping.Could you share the mentioned link that TAC provided you to download a version to upgrade via USB, please?

Hi @iklenickel I have exactly the same problem. Could you share how did you solved the problem, please?Hope to hear from. Thanks in advance.