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Here’s another WiFi name to avoid with your iPhone

Last month a reverse engineer broke their iPhone by connecting it to an SSID which disabled the handset’s WiFi connectivity.

Now that same engineer has found another bug and this one is worse.

At the weekend Carl Schou explained on Twitter that by changing a WiFi network’s name to %secretclub%power, an iPhone’s network will be permanently disabled. Even after resetting network settings and restarting the iPhone, Schou was unable to reconnect to any WiFi network.

What exactly is the issue here? Nobody seems to know for now but the best guess we’ve seen is that the percentage symbols are triggering an event in Apple’s code that shouldn’t be triggered.

Eventually Schou was able to find a fix but it’s not exactly an easy fix and Schou .  

“To restore WiFi functionality, you have to manually edit an iPhone backup and remove malicious entries from the known networks .plist,” the engineer tweeted.

This isn’t something everybody could do without running the risk of breaking something else so it’s not something we’d recommend doing.

Unfortunately that means avoiding WiFi networks with a percentage symbol in the SSID for now until Apple addresses this issue with a patch.

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