While there is no user replaceable WiFi-Card, you could try reseating the antenna connector. Follow [guide|1272|this guide until step 11|stepid=6966] and unplug the cable that's marked with purple in the guide.
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While there is no user replaceable WiFi-Card, you could try reseating the antenna connector. Follow [guide|1272|this guide until step 11|stepid=6966] and unplug the cable that's marked with purple in the guide. If that does not work either get closer to the router or replace the main board. Note that even if you plug the PSP into a PS3/ PS4/ router via USB the internet connection won't be shared.
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While there is no user replaceable WiFi-Card, you could try reseating the antenna connector. Follow [guide|1272|this guide until step 11|stepid=6966] and unplug the cable that's marked with purple in the guide.