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YellowGTO
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(Last edited by YellowGTO; 30th July 2010 at 02:16 PM.)
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Default What is the Galaxy S BT/GPS/FM chip?

Has anyone pulled the phone apart and read the serial number off the chip. We are trying to compair it to the US phone. If you have the info thanks :) Ours is a Broadcomm BCM4751 (Captivate)
 
bugmenever
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Can I ask how you know the Captivate has a BCM4751 chip? Did you disassemble and see it? It appears that the Galaxy S generic being sold everywhere else outside the US has the BCM2075 chip that integrates BT and FM radios; at least that's what's being reported by others here.

If it were true that the Captivate/Fascinate/Vibrant in the US are using the BCM4751 chip, then it would truly mean these phones have no FM capability at all and there is no prospect of rooting the phone to disable a software level crippling.

This pisses me off. I was willing to forgo the front facing camera of the US versions, but the fact that they (apparently) went so far as to have samsung supply a different GPS chip to eliminate the FM radio so you are FORCED to use some ****e, data intensive service like AT&T radio instead is just outrageous. With the GPS/compass/antenna problems seemingly going ignored by samsung, maybe I won't get this phone at all.
 
YellowGTO
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Quote:
Originally Posted by bugmenever View Post
Can I ask how you know the Captivate has a BCM4751 chip? Did you disassemble and see it? It appears that the Galaxy S generic being sold everywhere else outside the US has the BCM2075 chip that integrates BT and FM radios; at least that's what's being reported by others here.

If it were true that the Captivate/Fascinate/Vibrant in the US are using the BCM4751 chip, then it would truly mean these phones have no FM capability at all and there is no prospect of rooting the phone to disable a software level crippling.

This pisses me off. I was willing to forgo the front facing camera of the US versions, but the fact that they (apparently) went so far as to have samsung supply a different GPS chip to eliminate the FM radio so you are FORCED to use some ****e, data intensive service like AT&T radio instead is just outrageous. With the GPS/compass/antenna problems seemingly going ignored by samsung, maybe I won't get this phone at all.
Well the Galaxy S might have the BCM20751 but untill someone tears down the phone and checks with their eyes. The US Captivate was torn down and it is a 4751. But the 4751 doesn't have BT on it. So it could be all the phones have a 4751 with a seprate BT and FM. The 4751 is supposed to be a better GPS unit then the BCM20751 though.
 
bugmenever
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ah, I see it on the Captivate general forum now. The only teardown of the generic Galaxy S that I have seen anywhere is the original one done in Korea a month ago. The pictures from that disassembly are too low-res for me to make out chip IDs. I tried going through their video of the teardown frame by frame too, but again, I can't see the numbers clearly and I saw nothing that resembled a broadcom chip. The Captivate board layout is much different than the Galaxy S, I can't really even see where the broadcom chip should be on it either.....
 
sjdean
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You're gonna love this. On my Galaxy S, According to jupiter.xml:

Quote:
<gll
LogPriMask="LOG_DEBUG"
LogFacMask="LOG_GLLAPI | LOG_NMEA"
FrqPlan="FRQ_PLAN_26MHZ_2PPM_26MHZ_300PPB"
RfType="GL_RF_4751_DANUBE"
BrcmRFwildBase="0x1E2D6409"
BrcmRFclkDiv="21"
BrcmRFclkRefHz="26000000"
pps-enable="false" pps-offset-ms="0" pps-width-ns="100"
/>
I changed the RfType to GL_RF_2075_BRCM and it just didn't work.
 
YellowGTO
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Well thats good. We've accomplished something. But Broadcomm says this is the best GPS they have ever made some hopfully samsung messed up the code and we get a super good GPS.
 
sjdean
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TBH - I think we may actually be waiting on the driver from Broadcom. Something about Broadcoms reputation as an open source provider is in question.
 
YellowGTO
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Originally Posted by sjdean View Post
TBH - I think we may actually be waiting on the driver from Broadcom. Something about Broadcoms reputation as an open source provider is in question.
Yeah it could deff. be broardcoms side. They better fix it.
 
Kilack
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Is the 4751 used in any other phones just want to see the performance of the gps on this chipset in other devices..
 
heygrl
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The mere fact that we have Broadcom chip for GPS and not some off brand that I've never heard before like InCrystal really, really points to a serious issue with the drivers/firmware for the GPS. The phone should be operating in MS-Based mode out of the box anyway and I don't know why it isn't. That's not the only problem it has but standalone mode is not what it should be operating in. Nearly all phones GPS' are truly the pits without network assistance.

Lots of phones use Broadcom for GPS, right off of the top of my head, the iPhone is one of them!
-Samsung Galaxy S III Ceramic/Marble White on T-Mobile
-Samsung Exhibit 4G
-Samsung Vibrant
-Samsung Captivate on T-Mobile

 
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