Excellent tutorial! I have a question, which one is the antenna? My J8 (SM-J810M) dual SIM has poor signal and I would like to know if the antenna can be changed or replaced with another antenna from some Galaxy S series or how can it be fixed? Thank you very much in advance. =)
Hi, honestly, this phone is like the whole antenna. It is a reality of modern technologies. Therefore, all covers have spring contacts for GSM, WIFI or GPS antennas. Check the connections.
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