Re: bootldr flashing

Alexandre Boeglin wrote:

>Hello,
>
>I tried to flash the bootldr to my hx4700 today, but with no success
>(the HTC tool says something like "download failed" and "checksum
>failed"). When I hard reset it, the screen displays only completely
>scrambled purple lines ...
>
>
The error messages from the HTC bootloader are OK. It writes the image
regardless of the checksum. Did you use 'dd if=bootldr of=/dev/sda' to
write the bootloader? The bootldr image contains a marker that tells the
HTC flash writer program where the end of the image is. It flashes very
quickly with the small bootldr. I can post md5sums, if you still have
problems. Hopefully, HP didn't change some piece of hardware or
something ugly like that.

>My SD card previously contained a fat filesystem, so I wonder if I
>should write the bootldr at the begining of a sd card containing a
>windows mobile backup image instead ...
>
>One other option would be to write the ROM throught the mtd driver, but
>it sounds less safe than through the HTC tool ...
>
>Did other people manage to flash this bootldr to their hx4700 ?
>
>
Right, using the HTC tool starts writing at 0x40000, preserving the
original bootloader. Does the bootldr produce any serial output? Here's
my output:

HTC Integrated Re-Flash Utility for bootloader Version:1.37i ROADSTER
DVT vers1Built at: Jul 16 2004 16:30:44
Copyright (c) 1998-2002 High Tech Computer Corporation

Turbo Mode Frequency = 0 MHz
Run Mode Frequency = 0 MHz
Main=0x90048EBC
LCD Power ON!
ATI address=0xAB010000
ATI Chip Id=0x57441002
Normal-LCD Power ON!
SD:Waiting for card insert.........
CMD3 for SD, it's OK, ready to get RCA from response.
SD:Detected one card
SD:ready for transfer OK
Total card size=E100000ze=0
Flash ID = 89,8816
INTEL StrataFlash 256 Mbit Wireless MEMORY (L30/L18 Bottom type) found
Flash Updating...
CheckSum is fail! dwCheckSum=2120CC0D, dwCheckSumMemory=9E492479
SDCARDS2D: Download to memory fail!
<Do soft reset here>
**** SDG Boot Loader for HX4700 ****
Enabling MMU
Identified Flash: 48F4400L0ZB0 (2x16)
Machine type is iPAQ hx4700
SDRAM size: 64 MB (0x04000000)
SDG Boot Loader, Rev 1.0.0--hx4700 [BIG_KERNEL] [MONO]
Last link date: Sat Apr 16 20:49:49 EDT 2005
Contact: support_at_sdgsystems.com
CPU company: INTEL
CPU Architecture: XScale
CPU Part: PXA270
ARM Processor Rev=00050000
(C) 2000-2001 Compaq Computer Corporation, provided with NO WARRANTY
              under the terms of the GNU General Public License.
(C) 2005 SDG Systems, LLC.
Press Return to start the OS now, any other key for command line
type "?" or "help" for help.
Received on Mon Apr 18 2005 - 15:02:36 EDT