WiiM Ultra stuck in update for over 30 minutes

[Freshman1966]

Usually I get a message on my WiiM app that tells me that an update is available.

Today, the unit turned off (or at least the screen went black) and so I pressed the power button on the remote. That's when the update started and it's going on and on.

Does anyone have any idea what's happening and how to solve this? there's not much information to be found on the net.

Thanks for your help, Stefan

 

[Freshman1966]

I ended up pulling the plug, waiting for a minute, plug it back in. After that I could start the update from the app and it went through.

 

[Ronnie D]

I ended up pulling the plug,

Nobody wanted to suggest that in case it broke it. (but we were all thinking it )
Glad you got it sorted

 

[hoohoohoo]

Usually I get a message on my WiiM app that tells me that an update is available.

Today, the unit turned off (or at least the screen went black) and so I pressed the power button on the remote. That's when the update started and it's going on and on.

Does anyone have any idea what's happening and how to solve this? there's not much information to be found on the net.

Thanks for your help, Stefan

Hard to tell without logs. It seems like you stopped the update unintentionally, but it was recoverable. Plug pulling isn't the usual path -- but it worked, so lucky you!

Newer hardware devices (gross generalization) will often have an A and B partition on their local storage with the first boot being directed to the A partition at first boot. A firmware update will go into the B partitoin and then the bootloader is toggled to boot from the B partition. If the B partition doesn't successfully boot, then it can fall back to the A partition. Successful firmware updates should normally toggle between A and B through the life cycle of updates. The details are specific to every implementation, but some devices have a bit of robustness to bad updates. With WiiM occasionally mentioning about reverting from a firmware, it suggests that they have something like this under the covers.

Rabbit hole at the link below

AB partitions: a path to robust OTA updates for Linux - The Embedded Kit

AB partitioning is a robust method to deploy software updates, ensuring devices remain functional. Read more

theembeddedkit.io

 

[Mr Ee]

Nobody wanted to suggest that in case it broke it. (but we were all thinking it )
Glad you got it sorted

I was going to suggest it!
Has happened to me a couple of times.