Change Cut 4G SIM Card to Increase Mobile Internet Speed

Does your old cut SIM card have slow mobile data transfer speeds? Chances are you have never changed your SIM card since you brought it years ago. My SIM card was 6 years old. Then I bought a Nokia 720 last year and got my SIM card clipped to a Micro SIM Card by a SIM Card cutter. The net speeds continued to be slow.

Then a friend advised in a passing statement how changing his SIM card on his new iPhone improved the mobile internet speeds. So I decided to to change my SIM card…

Cut 4G SIM Cards

I approached the Airtel customer care centre and when I complained about slow mobile internet, the first question they asked even without seeing the handset was – did you get your SIM card clipped by a SIM card cutter!

Of course I agreed and they said that many times the SIM card chip gets damaged while cutting the SIM card and gets performance issues. Here is how a SIM card cutter looks like and is very popular among mobile sellers.

sim card cutter

They instantly gave a new SIM card for free. Then you simply send a SMS and the new SIM gets activated in a few hours. It was a 4G SIM card and the chip was well centered, unlike my cut SIM card as you see on the right in the photo.

Cut SIM Card

Faster Mobile Internet with New 4G SIM

An additional advantage of changing you SIM card is they have these 4G SIM cards (which means they are more future proof and will support 4G mobile internet packs which are soon going to hit the market) and they have a storage capacity of 128Kb (which means you can now store double the number of contacts etc. Although the best way to save contacts is linking to your Google account and syncing your contacts – I never store contacts on SIM ever after I lost all contacts on a stolen phone.

So did changing the SIM Card improve net speed?

Behold … the mobile internet speed increased! So if you have a very old 2G era SIM card which you have cut with SIM cutter, upgrading to the next generation 4G SIM cards just might increase your mobile internet speed. I recently purchased the Redmi 2 and it supports 4G. As Airtel is running a free 3G to 4G upgrade promotion, I am getting 4G connection and speeds due to the new 4G compatible SIM. Try it.

How to test the 3G mobile speed? Use or download their app.


  1. gkmamun says:

    thanks to P Chandra to post such nice and necessary topic. I will try it for my old sim card.

  2. Neeraj says:

    This is something which I haven’t heard of… would surely give it a rip

  3. Tabitha Kiarie says:

    I have all my sim cards cut. It works!

  4. Renjith Kumar says:

    First of its kind. Does it really work? I was using the same SIM which I took in 2007, last week I replaced it with a new one. There was something written in my old SIM like 25K, now its 125K. Don’t know what is that for?

  5. Cheyenne Webster says:

    I’m about to make the cut, does it definately not damage sim?

    • P. Chandra says:

      SIM card cutter can damage the SIM. Its better to get a replacement from your mobile service provider.

  6. Alicia says:

    Wow, thank you a lot for this tip, I ‘ve just recently noticed the same problem with my phone!

  7. Priyanka Michael says:

    Had no idea!! it’s a surprise.
    Awesome post admin. post more amazing tricks.

  8. sumit says:

    Nice post..ya this trick is working

  9. Saaed Khan says:

    Wow after reading this post, I have found a way to increase my mobile internet and really this trick is working fine .

  10. Gajendra says:

    Good site! I really love how it is nice on my eyes it is. I am wondering how I could be notified when a new post has been made.

  11. Dheeraj says:

    Woe… I have successfully converted my old 2G sim into 4G. You really is awesome.

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