Convert Mini SIM in to Micro SIM for iPad 3G iPhone 4
By now you all know that the iPad 3G + WiFi model require a micro SIM, and latest leaks from Gizmodo also suggests Apple may promote iPhone 4G/HD with a Micro SIM too. The advantages of the Micro SIM are in size. In fact measures only 12mm x 15mm against 15mm x 25mm Mini SIM. Apple has decided to adopt this new card type to save as much space as possible and operators are already adapting to provide this type of SIM.
In my country we don’t have any provider who supply Micro Sim cards at the moment, so i decided to move a step further and cut down Mini Sim to Micro Sim. It’s really easy as 1 2 3 
Let us clear the confusions of Sim, Mini Sim and Micro Sim. Sim cards we are using currently are called Mini Sim or second generation of Sim and Sim card we are talking about is micro SIM or third generation Sim. First generation Sim card was as big as credit cards that’s why second generation Sim are called Mini Sim.
Note / Warning :
1. Do it at your own risk and carefully because the chip is very delicate. It will be a bit harder to use the SIM so file the sim very delicately and try again and again.
2. The SIM you are using may differ in shape of the circuit from that used by us. Don’t worry about that and mind the circuitry gap.
3. Try with a useless SIM first.
Requirements :
A Mini SIM, Marker pen, Scale, Sharp cutter, File tool (Nail File) and some patience.
Instructions
- The first step is to get a card that allows access to the UMTS network.
- With a ruler / scale take measures to cut the SIM and mark with a pen. (12mm x 15mm)
- Mark the cutting line with a cutter and then bend off from same line, the plastic SIM is soft enough that it can be cut with scissors.
- Proceed to sharpen the edges of your new micro-SIM with File tool (Nail File). That’s it.
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Nice tutorial!
nice…..
awesome job bro,
wud love 2 do dis..
Awesome guide! Appreciate your hard work in this post.
Gosh thank u brother. Have stay’d sleepless for over a week now wondering and thinking about how to solve the micro sim issue for my soon coming iPad 3G?
As I diden’t know it was just the plastic part as was smaller I worry it would be the chip itself. Gosh
Ps. I don’t stop be surprised how quick u guys find out those solutions. Cool. Thx again! Ds.
Cool. Just wondering whether the BSNL 3G chip will look for an IMEI number on the iPad in order to work?
Hi friends,
I am about to purchase an ipad 3G from USA, will it be able to work with BSNL 3G
Thanks for nice post
hi friends,
Will iPad from USA work in India, say with BSNL 3G
Thanks
@Tonku Yes Micro Sim and Mini Sim both works on same frequencies.
Nevermind BSNL what about working for T-Mobile (VoiceStream) or WIND Canada’s AWS Band IV W-CDMA 1700/2100??? Since that’s where it’d make the most impact
Hi . nice tout.
I just want to know did any one try to make it i mean does it work
A brilliant thought for everyone and i think it will be useful for everyone, thanks and bravo
very nicely made – i did it and it worked out fine. also i bought in addition a microsim-adapter. therfor i can switch the micro-sim back to me iphone.
really nice!!! i did this and it worked great!!(IPAD) great info man!!! thanks!!
I have followed the clear instructions and fixed a chip on my ipad 3G…its in great working order!
thank you.
nice job bro..m getting my 3g in a few days…
i was just wondering which card are u using exactly in this picture….
bsnl data card…?
i was able to read prepaid..
so did u use a 3g card or a 2g card here?
thnx for reading!!
@Shashwat yup it’s a BSNL 3G sim card
so if i cut the bsnl 3G sim and put it into an ipad 3G, will the 3G work properly in india?
WOW, It works wonderfully! Thanks for your guide. I got a net speed of 1.2 Mbps with BSNL 3G supported
Thanks for these instructions – I trimmed down my MTNL sim and i get a signal BUT only edge works when i turn on 3g i get a message saying “could not activate cellular data network ” and the same sim works on my iphone 3gs with full 3g speeds .
Anyone have afix ? any Mtnl customers here ?
Oh and its jailbroken . and im using Cydia stuff like sb settings and backgrounder – would that make a difference?
Thanks. It works great.
Thanx a lot, Man.
Got it successfully activated in Qatar on QTel Network.
Guys, as far as I know, there is no need to buy two Ipad data plans! I heard there is a thing called micro sim adapter. Basically, u put ur microsim card inside it, and then u can use it in both Ipad and Iphone. I googlesearched it and found this site that sells it: gomicrosim . com They say it costs 4.5 EUR. They also seem to offer the sticker guide to cut the regular simcard into the microsim. According to my calculations it should save me 1440$, since now I have no need to buy another 2 years plan with AT&T.
Hi mate I want to know can I use micro sim made from standard sim from voadafone and Airtel sim cards on Iphone 4 purchased from UK in India. I have found on some sites that Apple is going to launch sim free Iphone 4 in Uk.
@Hemang yes iPhone 4 in UK is factory unlocked, go ahead and buy with confidence.
Great work. Tried this today on a Telstra NextG SIM and it worked a charm.
I did need to cut just a little of the end though to shorten it a touch.
I also use a nail file as it’s a little more gentle.
i hav my iPhone4 on its way to india from usa and i ws worreid about the solution for microsim cz there is nothing lyk it in india can i use my bsnl sim to trim it and use it in my phone? i have read these posts but is it really true???????
This works great, no need for a SIM cutter…
Will bsnl 3g sim work on i pad 3g
@ASbindra yes BSNL works on iPad 3G
I just got a BSNL postpaid data card. Will this work on the iPad 3G?
Do i have to put any settings. Please note this is only a data card and there is no voice service on this card.
Appreciate your help.
awesome awesome !!!!!!! its working
)))))) thnx a lot
hi, my i4 is on the way from canada. can i use my existing airtel sim in i4 by trimming the sim . can u clarrify all the dimenssions of the micro sim.
It is a wonderful idea and grate treatment for big confusion
I just cut my SIM card using a template and … it does not work! Iphone 4 says “No SIM” and I tried it with an adapter in my old phone and get the message “Inseet SIM”. Looks like I s….d up!
Is there a way to check the SIM card?
What can have gone wrong? I do not see any damage to the copper part?
Thanks
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