If you want, I can produce: a UI wireframe, REST API spec (endpoints/payloads), device-agent pseudocode, or a staged rollout policy document for AC8257 specifically. Which deliverable do you want next?

Many users skip this and regret it. A new firmware can sometimes factory reset your unit.

Better yet, contact your seller or look for a sticker on the unit itself (often hidden under a “Factory settings” menu – password usually 1234 or 0000 ).

If your unit has 1280x720, do NOT flash a 1024x600 firmware.