How to build an External Anthena

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Hi, my G4 is giving me the No Signal problem over GSM, some times it catch the signal but then it loose it after a few minutes, anyone ever build an external anthena or know how to do it?
Thanks in advance!

up.

Same question. How to build such an antenna or where to buy it ?

Reflash radio rom.

Hi,

I will try to upgrade the radio. Which one do would you advice for best gsm reception (don't care about bluetooth/wifi/battery) ?

Anyway, as I'm living in a foreign country near my operator's country, I can get a signal but often very bad, I would still be interested in an antena solution to improve the reception. So if anybody as something about it...

signal problem solved

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hi every one
i also had the same problem. i flashed my prophet with every version of windows and gsm rom but it didnt work. then i opened the prophet and straightened the antena connectors and then packed it, it worked full signals.
so check your antena connectors inside your phone.
best of luck.