For Wi-Fi flash AGNi or Devil kernel in recovery... AGNi HERE
If you flashed the DN3 from this forum you should be fine with your SIM. If from the international thread then that might be your problem. And wondering why you didn't post your question in the DN3 thread??
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I CAN'T PROMISEto fix all your problems but I CAN PROMISEyou won't face them alone.
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