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It’s definitely worth trying these before forking out for gadgets such as signal boosters - which promise stronger phone signals indoors, but are expensive and not always reliable.
1. Try switching to 2G
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| Originally posted by manuelfcg |
You can do this in your iPhone, by going to Settings, Mobile, Voice and Data and selecting 2G.
This’ll force your iPhone to use the old 2G network - which is far slower for data, but more reliable at penetrating buildings to let you make calls and send texts.
2. Use flight mode
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If you turn your phone to Flight Mode (quicker than turning off), then back on, it will have to reconnect - and will hopefully pick up a stronger signal.
3. Work out where you get the best signal
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Go to your iPhone’s phone-dialling panel and enter ‘*3001#12345#*’, then press ‘Call’.
This will put your phone into field-test mode. Then hold down Power and Lock until the power down screen comes up.
Now press the home button for six seconds. This brings back the home screen - but with numbers instead of bars for the signal.
The numbers are displayed in negative, and the higher the number is, the better your signal will be.
So, for example, a rating of between -40 and -77 is a solid, five-bar signal while anything above a -100 is going to be a weak, one-bar signal.
If you want to turn the numbers off again and go back to living in blissful ignorance, all you need to do is input the *3001#12345#* code again, hit call, and it will be disabled.
4. Use an app
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It features a dashboard showing which mast you’re currently using, with a compass pointing towards it (you can also view it on a map) and dials displaying the signal strength for voice and data.
A ‘refresh’ button prods your phone into switching masts.
5. Go upstairs - and open the window
It’s all about getting a clean ‘line of sight’ to the mast – which you’re more likely to do if there’s less stuff in the way.
Simply going upstairs can work, especially in country areas - and opening a window can offer a boost to your mobile signal.
Some ‘insulating’ panes in particular can interfere with mobile signals.
6. Try witchcraft
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| Originally posted by tinalska |
It’s not entirely clear why this might work.
Other physical tips which people swear by are taking an iPhone out of its case - and using a Bluetooth headset and leaving it on a flat surface, so the aerial can do its thing.









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