CDMA/GSM ROMs

[Guest]

I've wondered this, is the phone exactly the same hardware with a different ROM or do they make a different phone for the US/Asia market than the rest of the world?

I'm wondering if you changed the ROM from GSM to CDMA and the SIM card, would the phone work on the other network?

It would make life much easier for mobile phone companies if that were the case.

[Guest uk786]

As far as I know the Qualcommn processor's are different

[Guest stevenz]

CDMA mostly phones don't use SIM cards either, not sure if the sprint hero is one of the rare ones that does?

The radio hardware on a CDMA phone isn't capable of GSM/WCDMA/HSPA communication, it'll only do CDMA so even if you managed to shoe-horn GSM/WCDMA radio firmware and a ROM onto one, you'd just end up with a brick.

[Guest Soaa-]

They're different enough to require different ROMs. You can't flash a GSM ROM on a CDMA device, or vice versa.

[Guest Lonewuhf]

CDMA mostly phones don't use SIM cards either, not sure if the sprint hero is one of the rare ones that does?

The radio hardware on a CDMA phone isn't capable of GSM/WCDMA/HSPA communication, it'll only do CDMA so even if you managed to shoe-horn GSM/WCDMA radio firmware and a ROM onto one, you'd just end up with a brick.

The Sprint Hero doesn't use a SIM card, so I'm pretty confused by his original post.

[Guest]

The Sprint Hero doesn't use a SIM card, so I'm pretty confused by his original post.

Outside of the US, CDMA uses a type of SIM card called R-UIM

Does the Sprint Hero have a space for the SIM card under the battery or is it just not there?

I live in the UK, so I have never seen the Sprint Hero.

[Guest stevenz]

Outside of the US, CDMA uses a type of SIM card called R-UIM

Does the Sprint Hero have a space for the SIM card under the battery or is it just not there?

I live in the UK, so I have never seen the Sprint Hero.

That's what Google is for, but no, the Sprint Hero has no SIM slot same as their CDMA Palm Pre.