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Old 01-28-2009, 12:23 PM
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Re: XV6850 Teardown - Bottom half complete with 7 meg pics

Quote:
Originally Posted by RONMAC View Post
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...
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