Error code
52Er
Meaning
Wi-Fi connectivity module cannot communicate with main board
Moderate
What to do
Why this happens
Potential causes include a loose or damaged Wi-Fi module communication cable, a defective Main PCB, or a defective Wi PCB module.
How to fix it
Reseat or replace the Wi-Fi module cable; replace the Wi-Fi PCB if the error persists.
SourceSamsung service manual