Hey, I'm Chenwei Jiang, a cloud-surfing software engineer, conquering challenges and unlocking the true potential of cloud computing. I've written 41,997 words on this open source website.
Recent (22 articles)
A China Telecom SIM could use LTE data on a Pixel 7 Pro but had no working voice service. This is the ADB and IMS evidence chain that traced the failure to a missing VoLTE CarrierConfig capability, plus the minimal fix and its reboot verification.
A single click on Stop Extending in the macOS 26 Screen Mirroring menu left a USB-C monitor black and invisible to System Settings and BetterDisplay. Tracing the WindowServer IndependentOutput flag through kernel, CoreGraphics, and persisted config, then clearing it with a SkyLight private API.
A compact map of the design, firmware, controller, and transport layers behind DIY split keyboards, followed by practical selection rules.