Rooting the TP-Link TL-841N router

Per Adafruit Blog, a detailed hardware hacking write-up walks through rooting a budget TP-Link TL-841N router and extracting its firmware via two independent methods to validate both techniques. The key finding: factory reset on the latest available firmware for this model does not erase previous subscriber broadband authentication credentials—they remain recoverable from persistent flash storage. It's a stark reminder that factory reset often doesn't mean what buyers of secondhand gear assume it does.

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