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FYI, I found out what the problem was: The stock rom needs to be updated to 4.2 (you can get the official rom here if there is no update available), I think because of the bootloader.


You can compare the specific absorption rate (SAR) between handsets. The number isn't precisely a measure of antenna performance, but the higher the SAR the more RF the phone is emitting. Also, I found a review (current as of 2013) of mobile antenna performance. Your best bet may be to buy a cell phone booster; check ubersignal.com for examples. They aren't ...

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