T41S Custom logo only displays temporarily

[jolouis]

Honestly it is not worth fighting for. If you really want customized logo/display then use a higher level phone than the T41.

The reason Yealink switches between the logo and the idle screen is that the LCD is not capable of display the graphic and the fixed/idle information at the same time... they are rendered by two completely separate processes and just don't play well together. We went down this road many years ago back with the T28s and T26/T22s. The 28s worked great as the logo would always show in the blank area of the display, but on the lower phones they would just continually flip back and forth between the logo and the actual interface. At the time Yealink explained that was by design and quite frankly we had a hard time trying to argue differently.

It's nice branding to be able to customize the phone's appearance, but on sets with such small basic screens it's just not worth fighting over and these days with so many more models and features to focus on I doubt you will ever convince a Yealink dev to spend time on it for you.

If customized display is your primary concern the T29 is a reasonable compromise between the T46 and the more basic T41/T42. Styling is a little plainer but the screen is the same one used in the 46 and price point is about 30% more than T41 compared to 80% for T46. T52S may also be worth looking at.