Need Help Trying To Flash A V1.0 With 4 Different Bios Images
Posted 21 July 2009 - 05:44 PM
i get the bios flashed but only 1 or 2 bin files are being read is there any way to flash each bank seperately? and what prog is the best at makeing the multiple bios image and flashing any help would be greatly appreciated THANX
Posted 21 July 2009 - 06:01 PM
Alternatively you can do it manually from the command prompt:
copy /b bios1.bin+bios2.bin+bios3.bin+bios4.bin newbios.bin
or in Linux:
cat bios1.bin bios2.bin bios3.bin bios4.bin > newbios.bin
Posted 21 July 2009 - 06:04 PM
Posted 21 July 2009 - 09:44 PM
to use 4 bios youll need 2 SPDT switches connecting a18 and a19 to 3.3v and ground (there is a diagram in my sig)
then, the easiest (and safest) way to flash is simply flash each bank individually with a 256k bios
Posted 22 July 2009 - 01:14 AM
Posted 22 July 2009 - 06:16 AM
i tried that and fraged my box so now i gotta find a 29 wire modchip or find a new xbox v1.0 but i still wanna kno what i did wrong
its possible the switch didnt properly isolate each back, you could try the 3 wire trick and see if that gets it going again
what bios(es) did you try flashing?
Posted 22 July 2009 - 08:26 PM
Posted 23 July 2009 - 06:01 AM
Don't flash your TSOP too many times. As with all solid state rewritable storage, the TSOP has a limit in how many times it can be reliably flashed. You have been warned.
Posted 23 July 2009 - 04:46 PM
Might be incompatible xcodes between each of the BIOS'.
this problem was solved years ago by using a SPDT switch to switch a18/a19 between ground and 3.3v (previously the method was to use a SPST to switch between ground and open)
regardless of method used to split the TSOP and bios flashed, the lowest bank should always work
and the number of writes/erases a chip can handle shouldnt be a problem either, the Hyundai/Hynix chips in 1.0s are rated to at least 100,000 cycles (i imagine other TSOP chips used have similar ratings)
Posted 23 July 2009 - 05:05 PM
p.s. anyone kno where i can pick up a flash rom at?
Edited by ABC-King, 23 July 2009 - 05:06 PM.
Posted 23 July 2009 - 05:47 PM
@ABC-King: Flash ROM chip? Try your local electronics store (the ones that sell blank circuit boards and all sorts of components). Be sure to check compatibility with the Xbox, if you're gonna solder it in place of the TSOP. Mail order catalogs also work.
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