Grand Prime SM-G5030AZ not receive 3G signal only Edge - Galaxy Grand Prime Q&A, Help & Troubleshooting

Hi,
I have Samsung Sm-G530AZ few phones .. not receive 3G signal only Edge .
any idea how can i fix ./?

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Lte is not working only edge

hi,
i have a Galaxy Grand Prime G530w show mobile network EDGE . Am using TIGO network
Now i want to use LTE but of course it does not work.
Even network provider to configure their LTE in this phone. only 2G working :'( no 3G and 4G.
Help please
I also have this problem
Why is there no solution to the problem?

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Samsung Galaxy Note 4 Model N910S GSM Signal Problems

Good Evening
I just recently acquired a Korean Samsung Galaxy Note 4 from a Mobile Flea Market in the Philippines
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Will upgrading my firmware from S910S-S910C might repair the problem in the signal?
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