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mobile network signal problem

i have acer mobile model no LIQUID E700 in my phone network signal is not working.signal strength is poor.

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My phone don't work no network

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i am having acer z530 mobile it is 4g lte but its getting only 2g signals on all sim including airtel 4g

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brought a phone from overseas, China and I live in New Zealand wont read my sim card

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rahul crwdns2934231:0crwdne2934231:0
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