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Sprint bad ESN 4s on gsm?

G

gugu

macrumors newbie
Original poster
Dec 9, 2011
20
0
Lots of bad esn 4s on eBay. I found a sprint 4s activated before 11/11/2011 with bad esn, can this phone works on gsm??

Any idea?
 
gugu said:
Lots of bad esn 4s on eBay. I found a sprint 4s activated before 11/11/2011 with bad esn, can this phone works on gsm??

Any idea?
Click to expand...

Sprint is CDMA, ATT is GSM. Sprint's SIM slot is unlocked only for international carriers. US Carriers don't unlock their SIM card for use with other US Carriers.

Only the GSM-compatible iPhone is sold unlocked through Apple. You can't take a Sprint iPhone and put it on the AT&T network because it's CDMA and the Sim slot is restricted. There is no "unlocked" CDMA iPhone.

So, no, you can't do this.
 
saving107 said:
It would depend how it was originally purchased, contract free and unlocked are two different things.
Click to expand...

Thanks. In this case, do you mean that unlocked phones could work on the international carriers and the bad esn and the contract restrict all the us carriers?

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pilot1226 said:
Sprint is CDMA, ATT is GSM. Sprint's SIM slot is unlocked only for international carriers. US Carriers don't unlock their SIM card for use with other US Carriers.

Only the GSM-compatible iPhone is sold unlocked through Apple. You can't take a Sprint iPhone and put it on the AT&T network because it's CDMA and the Sim slot is restricted. There is no "unlocked" CDMA iPhone.

So, no, you can't do this.
Click to expand...

Ok.Thanks.
but suppose if I were abroad, could I use this sprint bad esn phone that activated before 11/11 on other local carriers?
 
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