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-   CDMA TP Development (http://forum.ppcgeeks.com/forumdisplay.php?f=68)
-   -   XV6850 Teardown - Bottom half complete with 7 meg pics (http://forum.ppcgeeks.com/showthread.php?t=54819)

RONMAC 01-28-2009 10:46 AM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
Quote:
Originally Posted by lllboredlll (Post 672598)
That is RAM allocated for the linux based radio functionality. ISM(instrument, scientific, medical) Radio bands are basically what frequency your radio broadcasts at. Noting that VZW is allocating 64 mb to these bands would lead me to believe they are broadcasting on the higher frequency band of the CDMA spectrum. As we all know there is always a certian bit of RAM allocated directly to the radio. It's really intriguing to find out why VZW has set aside that much.
Could it have anything to do with the use of the 700 mghz spectrum they own? Some sort of upgrade for this phone to use that? Do the other PPC phones they are releasing have the same ISM allocation?

Just thinking out loud :)

FormerPalmOS 01-28-2009 12:23 PM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
Quote:
Originally Posted by RONMAC (Post 671354)
I was just looking at the VZW site checking the specs on the TouchPro and noticed something odd.

They post the following information: Memory: 512MB Flash/192MB RAM but our phones only have 110.28. I get the whole loading stuff into RAM for quick access all that but where is the rest?

I was sure we were stuck with the 110 but now I am pissed nad frustrated again!](*,)
lllBoredlll posted earlier that the radio processor for the VZW phone gets 64M of the 192, leaving 128M. Subtract your pagepool size and XIP image size and you get what's left as program memory. I recovered about 1MB in a custom XIP. Stripping stuff out of the \windows directory will allow you to run with a smaller pagepool. Otherwise you're stuck.

Only other way (and I know this is where Scott is going) is to swap the custom Samsung NAND+RAM chip from a Sprint device to the VZW device. Sammy did two custom jobs for HTC - both chips use the same 512MB NAND flash device, and the same 256MB SDRAM device. They blow redundancy fuses in the 256MB SDRAM device to deactivate banks, making it a 192MB device. So no recovery of memory without disassemble and BGA re-work (expensive):(

And thanks Verizon - A$$holes - why did they do this? They have an exclusive on Blackberry Storm and make more $$$ on that one so they didn't want the TP to be too kick-a$$ - and Sprint has an exclusive on their Touch Pro so HTC had to come up with a lesser device. Now if only Sprint's customer service and network didn't suck so badly compared to Verizon...

phattooth 01-28-2009 03:14 PM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
Quote:
Originally Posted by FormerPalmOS (Post 673245)

And thanks Verizon - A$$holes - why did they do this? They have an exclusive on Blackberry Storm and make more $$$ on that one so they didn't want the TP to be too kick-a$$ - and Sprint has an exclusive on their Touch Pro so HTC had to come up with a lesser device. Now if only Sprint's customer service and network didn't suck so badly compared to Verizon...

That right there, is the best rational i've heard about why VZW did what they did to the TP.

Thanks for that!

stanglifemike 01-28-2009 03:57 PM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
Yea, I actually had a in store sales rep tell me that they have a contract with BB and that is why they push BB products and not the others. Dont know if they would cripple a phone for that reason. But hey......this IS Verizon were talking about so theres no telling what they would do

crazy098 01-29-2009 04:07 AM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
Quote:
Originally Posted by stanglifemike (Post 673917)
Yea, I actually had a in store sales rep tell me that they have a contract with BB and that is why they push BB products and not the others. Dont know if they would cripple a phone for that reason. But hey......this IS Verizon were talking about so theres no telling what they would do

I wonder if proving that was the reason verizon crippled the phone would do any good.

pdavis466 01-29-2009 08:50 PM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
Quote:
Originally Posted by crazy098 (Post 675765)
I wonder if proving that was the reason verizon crippled the phone would do any good.
I am sure that rationale would hold no water from a consumer perspective as there would be no leverage for change. I had "dallied" with sprint when I found out about the differences with the devices (and the lower cost of the "all you can eat plan"), but in the end, my company has a contract with the "VZW" that fetches me some serious discounts on personal gear.

I do love my TP though. I think it would be AWESOME if it were possible to upgrade the RAM....awesome.....

Thanks for all the work you do Scott (and the rest of the crew). You have all filled my head and time with wonderful things to play with and enhanced my device to no end.

froader 01-31-2009 02:18 AM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
Scott-
You said that your replacement TP had a better quality screen and buttons.

I finally got a chance to open mine and take it out. It's a refurb and the button assembly below the screen is raised about a half a millimeter above the screen. I think that this should be flush. Whats up with the quality control on these devices lately? I had a slew of junk Titans from VZW, even NEW replacements they sent. I was wondering about your screen in relation to the buttons. are they flush? I think you said that the new one had the buttons working better.

Thanks!

scrosler 01-31-2009 02:40 AM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
Quote:
Originally Posted by froader (Post 680317)
Scott-
You said that your replacement TP had a better quality screen and buttons.

I finally got a chance to open mine and take it out. It's a refurb and the button assembly below the screen is raised about a half a millimeter above the screen. I think that this should be flush. Whats up with the quality control on these devices lately? I had a slew of junk Titans from VZW, even NEW replacements they sent. I was wondering about your screen in relation to the buttons. are they flush? I think you said that the new one had the buttons working better.

Thanks!
After looking at it more... No it doesnt. Has the issue worse than my last actually now. But the buttons are responsive where the last two had issues within a day or two... More time will tell.

scrosler 01-31-2009 02:41 AM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
Quote:
Originally Posted by lllboredlll (Post 672598)
That is RAM allocated for the linux based radio functionality. ISM(instrument, scientific, medical) Radio bands are basically what frequency your radio broadcasts at. Noting that VZW is allocating 64 mb to these bands would lead me to believe they are broadcasting on the higher frequency band of the CDMA spectrum. As we all know there is always a certian bit of RAM allocated directly to the radio. It's really intriguing to find out why VZW has set aside that much.
But do you think the RAM can be recoverd to useable memory space?

froader 01-31-2009 01:27 PM
Re: XV6850 Teardown - Bottom half complete with 7 meg pics
 
1 Attachment(s)
Quote:
Originally Posted by scrosler (Post 680346)
After looking at it more... No it doesnt. Has the issue worse than my last actually now. But the buttons are responsive where the last two had issues within a day or two... More time will tell.

Just to clarify - On your TP is the screen flush with the button overlay? Sorry, I didn't understand your answer. I've attached a pic of my replacement showing the button overlay clearly sticking up above the screen It just doesn't seem right. With tough economic times is HTC employing even younger children to assemble these devices. What gives!


FYI - I tried your 6.5 beta and its pretty cool - thanks!


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