Working on a custom Android firmware has its own challenges, especially if you have a suite of system applications that requires UI testing. Manually, you would need to flash your device with the custom ROM, run UI tests on it, and check the results. If you have a high-cadence delivery cycle, this can become troublesome fast. In this talk, Faraz M.R. and Bharath MG will walk you through how Hammerhead automated UI testing of their custom firmware and integrated it with their CI/CD pipeline. With this setup, their custom hardware downloads the custom ROM, runs tests across applications, and uploads the results to the CI server without human intervention.