1)Type [ ＊3001#12345#＊ ] on ur iphone and call.

2)Screen will pop out FIELD TEST and ur signal changed to number,[-xx] instead of line.

3)Greatest the negative number,Weakest the signal.

4)(Long press) power button until (SLIDE TO POWER OFF) appear.

5)(Long press) home button back to home screen.

6)Switch between line pattern and number by tapping on the number/line.

7)To recover,follow the first step and press home button once.

HAPPY TRYING AND HOPE UR SIGNAL ARE STRONG ENOUGH!!

This post has been edited by whereis the love: Mar 13 2013, 08:55 PM

thanks for sharing

mined currently -85... so isit strong enough?

So far mine -65 is the best i can get..I hope more people can share their signal..

Average i can get when was -95


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Or if your iPhone is jailbroken & the signal strength no. is what you wanna know, can always install OmniStat for Notification Center from Cydia. Refer to the Cell IP...

This post has been edited by decavalera: Mar 14 2013, 01:39 PM


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so the signal bar is actually not accurate? even it full bar?

I read somewhere, it says the closer the number to zero, the better is your signal strength regardless of the positive or negative sign which just indicate direction.

So a full bar line should be around 0 or in the range of +- 10?

Uodate : I got -77 of full bar Maxis

This post has been edited by christcwl9: Mar 15 2013, 12:57 AM

Yup,lower the number,the better signal due to (negative).eg:-100 are weaker than -80.

The signal bar relates to the signal strength.

Using my iphone5 I notice something like this:

5 bar: -79 and better
4 bar: -80 to -89
3 bar: -90 to -99
2 bar: -100 to -109
1 bar: -110 and worse

2 bars of Maxis and -98. Sad.

best i can get is -69

Celcom 5 bars -68

Maxis -63 full bar.




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Best I've seen is -60 (Digi around Jalan KK, Ipoh).

-55 without 3G



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Signal strength not related wif download speed right?

Yes indeed. You will get higher speed at full bar, if you are on just 1 bar 3G, your speed will be slower as well as unstable.

Wat problems r u saying?or u asking will this works on ur iphone 2g?

the best i can see is -51 for Celcom 3G.