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Topic # 14714 17-Jul-2007 11:12
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Hi, this could be old news, but I don't know about it, but was there compatibilty problems with some phones when going from 64K simcards to 128K?

My phone won't work with the 128K, but does with 64K. Why might that be?

I bought a new simcard with close to $100 on it and I cant use it, will I be able to get 64K cards new anywhere? 

Will I be able to get my credit and number swapped off the 128K card and onto a secondhand 64K card?

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  Reply # 78429 17-Jul-2007 11:39
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Check with phone maker why 128k SIM are not working in it



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Reply # 79275 23-Jul-2007 12:02
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This is the reply I got from the manuafacturer:

"The 128k SIM cards are not supported by the phone's operating system. This is why you are getting the error message."

It appears that on advice from someone else, that when it said "insert sim card", that turning the phone on and off ~6 - 8 times allowed the phone to read the sim card and carry on ok. That lasted a week, and now after that 6 - 8 times, it now says "sim card error". Or if not the phone "appears" to be ok, but after doing anything that accesses the simcard, the phone locks up.

I have offered someone to swap my new simcard for an older 64K one, and hopefully A) That solves the problem, and B) That I haven't wrecked the new sim card or upset the phones O/S.

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  Reply # 79278 23-Jul-2007 12:47
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What type of phone are you trying to use? The voltage requirement have changed over the years. Old phones and SIM's were all +5V whereas new phones and SIM's are +3V. Normally this just means an old SIM requiring 5V won't work in a phone that only supplies 3V to the SIM but some older phones also just won't work with a 3V SIM even though they should OK.




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  Reply # 79953 27-Jul-2007 10:37
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A Benefon Track Pro. Its working 100% fine now with a 64K card in it. I would like to buy a Benefon ESC, but would need to try find a 64K simcard before I do so otherwise I won't be able to use that.

I have a friend with a number of expired 64K sim cards, but I called Vodafone and they told me that I can't transfer my current 021 phone number onto an old 64K card.

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