Phone recovery case study

Samsung S25 Ultra recovered after three days underwater.

A real, anonymized case where the original encrypted phone had to be repaired and stabilized before its critical data could be accessed.

Opened Samsung phone prepared for liquid damage data recovery

Case summary

Water damage recovery where the phone had to work again.

The Samsung phone was recovered from approximately 30 feet of lake water after three days. Modern Android file-based encryption meant a raw memory dump alone would not provide usable data; the original device needed to boot and unlock.

Device

Samsung S25 Ultra recovered from a lake.

Failure

Three days underwater caused contamination and board-level damage.

Main challenge

File-based encryption required the original phone to become functional again.

Recovery path

Liquid-damage cleaning, microsoldering, stabilization, and device restoration.

What made it difficult

Corrosion continues after the phone leaves the water.

Lake water leaves minerals and contamination that attack connectors, traces, and small components. The device required careful cleaning, inspection, and board-level repair rather than charging attempts or basic drying.

Outcome

The phone was restored and the critical data recovered.

Board-level repair returned the original encrypted device to a working, unlockable state so the needed data could be safely accessed and verified.