Hi Tobias,
Did you found any old devices working with SAPUI5/OpenUI5?
We created a simple web app with v1.36 but is not working on any of the browsers installed on a Intermec CK3a1. Those were Internet Explorer, Honeywell HTML5 Browser, Zetakey HTML5 Browser and Iris browser. Last three it suppose are HTML5. Now I'm searching for older than v1.26.1, which also dosn't work 
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