Source: https://mayphus.org/tp-link-security-camera-investigation/ Title: 3 TP-Link Security Cameras Metadata: {"category":"artifact","id":"tp-link-security-camera-investigation","investigation":{"current_answer":"Two cameras still show IR and pan/tilt life; the opened unit maps the hardware, while UART remains silent.","date":"June 22, 2026","evidence":[{"body":"LED changes, reset response, IR activity, and pan/tilt movement reveal which subsystems still receive power.","title":"Power shows behavior."},{"body":"Both intact cameras still show IR and pan/tilt movement at power-on, so they can be compared before another teardown.","title":"Two units remain useful comparisons."},{"body":"The opened camera exposes the main PCB, camera module, motors, audio parts, SD-card slot, IR board, light sensor, UART pads, and power conversion.","title":"One unit is the hardware reference."},{"body":"The USB-TTL follow-up produced no boot output, narrowing the next work toward power rails and boot-state measurements.","title":"UART silence is evidence."}],"id":"tp-link-security-camera-investigation","next_action":"Power-check the remaining cameras, confirm rails, and capture the result before attempting deeper repair.","public_boundary":"Only selected teardown observations and measurements are public; no live room view, credentials, network identifiers, or private device data are published.","question":"What still works inside these three failed cameras, and which power or boot fault best explains the remaining failures?","status":"Active investigation","uncertainty":"The remaining rail voltages and boot state have not been measured, so a power fault, stalled boot, or failed main processor is not yet distinguished.","updated":"2026-07-31","workflow":"next"},"kind":"artifact","language":"en","route":"/tp-link-security-camera-investigation/","tags":["electronics","camera","teardown","embedded"],"type":"project"} 3 TP-Link Security Cameras What still works inside these three failed cameras, and which power or boot fault best explains the remaining failures? Status Active investigation Date June 22, 2026 Result Two cameras still show IR and pan/tilt life; the opened unit maps the hardware, while UART remains silent. Evidence Power-on stream (https://www.youtube.com/watch?v=ctq6cGv6m04) Teardown stream (https://www.youtube.com/watch?v=EXk1gPWJxCI) UART follow-up (https://www.youtube.com/watch?v=-YcUGU2FZdU) Next Power-check the remaining cameras, confirm rails, and capture the result before attempting deeper repair. Opened TP-Link security camera during the investigation stream. (https://mayphus.org/media/tp-link-security-camera-investigation/tp-link-camera-investigation.jpg) Disassembly context from the stream: the camera is opened first as an object to understand, not a repair target. Full circular TP-Link camera PCB on a wooden desk. (https://mayphus.org/media/tp-link-security-camera-investigation/tp-link-camera-pcb.jpeg) Board view: the complete circular PCB after it is out of the camera shell. Summary The investigation keeps the known evidence, uncertainty, public boundary, and next physical experiment together. Power shows behavior. LED changes, reset response, IR activity, and pan/tilt movement reveal which subsystems still receive power. Two units remain useful comparisons. Both intact cameras still show IR and pan/tilt movement at power-on, so they can be compared before another teardown. One unit is the hardware reference. The opened camera exposes the main PCB, camera module, motors, audio parts, SD-card slot, IR board, light sensor, UART pads, and power conversion. UART silence is evidence. The USB-TTL follow-up produced no boot output, narrowing the next work toward power rails and boot-state measurements. What remains uncertain. The remaining rail voltages and boot state have not been measured, so a power fault, stalled boot, or failed main processor is not yet distinguished. Public boundary. Only selected teardown observations and measurements are public; no live room view, credentials, network identifiers, or private device data are published. Steps - Power on each camera, press reset, watch LEDs, and see whether the motor still moves. - Use app pairing and network discovery as quick clues about what part of the system may still be alive. - Open the roughest unit as a physical guide for snap locations, board layout, and how the camera is assembled. - Check UART pads as a curiosity path into the boot process, not as a promise that the camera needs to be repaired. Hardware map main PCB camera module stepper motor speaker microphone SD-card slot IR LED board light sensor UART pads power conversion