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Topics - DrWowe

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Hardware Mods / Replace Lithium-polymer Cell?
« on: January 27, 2006, 04:39:11 pm »
Is there anyone out there up to the task of breaking open an SL-6000 battery, replacing the worn-out cell with a fresh one, then putting it back together?

General Discussion / I Mounted A 2 Gig Sd Card!
« on: January 17, 2006, 09:02:51 pm »
Thanks C-Guys!

I was poking around the driver for their WiFi card to investigate something.  Then, I realized that they completely replace the sharp_sdmmc kernel module with their own SD/SDIO stack.  So just for fun, I installed it and surprise, I can now read, write, and mount a Sandisk 2 GB SD card.  So far, it's been working very reliably.

Now, the catches:

1) It works fine on my C760 (running Cacko 1.12).  But, when I tried to install the modules on my 6000, I got kernel oopses.  So, it may be very sensitive to the model/kernel that is running.  This is not that surprising since C760 is one of the few models listed as supported on their website.

2) vfat filesystems are fine.  I had some problems with ext2.  I fixed it by reformatting my card with "mke2fs -b 1024 /dev/mmcda1".  This driver doesn't seem to like block sizes > 1024.

Anyway, if you want to repeat my experiment, just download and install this ipk, and reboot the Zaurus:

Sharp ROMs / Cacko Feed Doesn't Work On C760
« on: January 03, 2006, 12:28:05 pm »
Is there a different feed I should be using besides ?

Because, many of the packages don't work.  Here is a partial list

Using Cacko 1.23 light:  Opera wouldn't install, and Netfront installed, but segfaulted.

Fortunately these programs work correctly when I reflashed with Cacko full.  So much for the nice idea of using light.

But other programs from the feed didn't work:

libSDL, libSDL-mixer, and Doom.  Doom segfaulted.  I replaced the libSDL and libSDL-mixer with the ipks from zports, and then doom ran, but the display was sideways.  Finally, I uninstalled doom-engine.ipk and replaced it with prboom.ipk from zports and all was OK.

There were also some others I tried that failed, but I don't remember at the moment what they were.  I'll post back later with details.

Has Cacko stopped supported the C7x0?  It seems like I shouldn't have to use other ipks for programs that are in the feed, otherwise what's the point of the feed?

Zaurus - pdaXrom / Why Not Use Bittorrent?
« on: December 30, 2005, 03:31:49 am »
The server seems to be responding a bit slowly right now, probably because everyone is downloading the new release?

Why not use BitTorrent for the big files (release images, feed.tar.gz, pdaX86, etc) and just use http for the feeds?

It will make everyone download faster, save you guys $$$, and it provides automatic mirroring in case the server fails again.

Think about it.

General Discussion / How To Restore A Seriously Bricked Z
« on: December 29, 2005, 06:20:58 pm »
I was screwing around with the flash memory, and bricked my Z so hard that it wouldn't do anything except flash the mail and power LEDs.  None of the special boot sequences I know worked and I couldn't get to the NAND restore, or any other restore procedures I knew of.

I looked around for solutions in vain, and I was getting to box it up and start the long round-trip to Japan, when a lucky set of Google search terms came up with an idea.  I tried it, and it worked.

Since the page I found is only in Google's cache of the dead forums, I'm going to copy it here for posterity.

Posted: Thu Jun 03, 2004 6:17 pm

I have the solution!!! I am so happy now!!! I was surfing for hours and hours, and playing with binary files and dd...

But I found a website that has the solution for my device:

I pushed FN+D+M while connecting the AC power, and suddenly I did have a Service Menu!

Now I'm trying to restore a c860 NAND from

Everybody thanks!

I'm also going to copy a translation of the Japanese WiKi page.    It seems to have a very complete description of special ways of booting.

Because it was possible to revive with NAND RESTORE here when FLASH in zaurus has been crushed before, let's write the thing that it did around here or the doubt and.

It is a thing of the reference as for the page above. Moreover, I will read the page of 59414D41 Mr. to whom the page was written.
It is considerably important and comprehensible.

By the way, the thing done after it determines it of act of danger considerably. The responsibility cannot be taken no matter what it happens.
It had already been destroyed, and this act was able to be eased for me.
By the way, only SL-C700 is confirmed.

How for start-up of debugging menu.

Basically, it stands up by turning on the lock switch of the battery lid while pushing some keys.
Moreover, it is acceptable even if it pushes at the restart. The battery is removed, and it is OK to do the adaptor in while pushing the key.

From Zaurus forum
key combination  boot option number  action  Operation by my Zaurus
none  0  normal boot  Usual boot
DP  2  Normal diag  Refer to the page of 59414D41 Mr..
DM  3  Service diag  Refer to the page of 59414D41 Mr..
DC  4  Update NAND from NOR  There is no CF update screen.
QT  4  Update NAND from NOR  There is no CF update screen.
DL  5  Boot CMDLINE is changed and it boots it.  Usual boot
DZ  6  Update NOR from NOR  For Flash combustion of Bets without NOR update screen(Maybe,)
DK  7  Update NAND from NAND  There is no CF update screen.
DB  8  BOOT: Maintain kernel  Guy of boot 0x220000 of kernel for maintenance
AB  9  Backup  backup ?
DV  9  Backup  backup ?
DA  ?  Angel Debug Monitor  Angel Debug Monitor version 0.42
DR  ?  REMOTE CHECK  It is output with REMOTE CHECK 2400bps. The command of two characters can be sent. Is it considerably danger or .. Bootflag can have changed.
LX  ?  It is the same as option number 0.  ?
Fn+P+D  ?  Normal diag  Diag is booted without NAND LOADER's passing. (In the cereal output,)
Fn+D+M  ?  Service diag  Diag is booted without NAND LOADER's passing. (In the cereal output,)

Oh dear the around here person ..NAND FLASH BACKUP.. thinks with diag menu.

C750 ..kernel.. is seen and doubtful reset_key_combination ..corgi_logkey.c.. is discovered.
Fn+Home, Fn+P+D, and Fn+M+D are recorded anything doesn't happen though it tentatively confirmed not recording up.
Can only SL-C750/760 be done because it is not in the kernel of SL-C700?

Destruction and restoration of NAND device

/(mtdblock2) was not able to be read for a moment suddenly ..the former kernel and...
Oh dear, it is generated the error while writing it when thinking the furnace as soon as reconciling when initrd.bin is rewritten.
At this point, the debugging menu ..information.. worries .... considerably. Including thing sent to repair

And the net are variously examined and the cod and the debugging menu are discovered to be. (..piling up.. did not only read ..ー.. neatly. )
When it boots with DB by the kernel for debugging, and mtd2 was done in the mount, writing is improper though it is possible to read somewhat for the time being.

NAND is backed up with diag menu though it is first of all broken in the said thing. Can it become calm a little because it considerably drives it at time the other day?
Error generation in restore though it manages to obtain SYST700.DBK, and restore is done. At this point, it considerably becomes blue.
The thing that restore can be done confirms the backup goods of NAND of broken, and NAND FLASH(FULL) is executed for the time being. The resignation mode around here considerably.
Restore can have been done by doing SYST700.DBK ..obtaining.. in restore. It is a considerable state of the excitement here.
It was possible to finally revive.
Thank you for information about 59414D41 Mr..

Choi at about half a day at this period.

However, restoration was very because my system had been completely customized.
When a considerably steady system can be done, one degree NAND FLASH BACKUP.
However, it is ..painful.. to take time to back up. For about one hour(With SD. )

9/15 postscripts

It has understood well and a postscript is added when fiddling with this while ..the.. output.. seeing making the cereal cable somehow. The cereal cable was connected directly troublesomely though had when seriously making it by using MAX3222 first.

The thing that tentatively entered boot and the maintenance mode can have been done though MAINTE and DIAG of C750 were incidentally put in C700. However, it seems writing in P2ROM and a furnace around here with SL-C700 on the screen of the maintenance mode because it goes out.
Even if reset hanging when the battery lock locks also replaces MAINTE, it is put on P2ROM, and it is hardware or might be either. a kooky bowl Because the advantage doesn't exist maybe even if MAINTE of C750 is put, either it is not worth putting it.

Zaurus - pdaXrom / Why Is Cf Card So Slow?
« on: December 27, 2005, 11:55:24 am »
I noticed untarring an archive containing many tiny files that it was taking a very long time.  Each file was taking 1/2 second or so.

Is the kernel forcing a sync after every file write?  If so, how do I stop it?  I already tried remounting with -o remount,async but it didn't do anything.

Zaurus - pdaXrom / Fix For Tosa Keymap
« on: December 25, 2005, 03:28:55 pm »
This little fix completes the standard ASCII characters avilable from the keyboard, with the following mappings:

Fn-Shift-( and Fn-Shift-)  are  [ and ]
Fn-Shift-< and Fn-Shift->  are  { and }
Fn-Shift-/  is  \
Fn-Shift-Space  is  `
Fn-Shift-~  is  ^

Hopefully this can be applied to the Tosa build.

General Discussion / Booting Without A Battery
« on: December 25, 2005, 11:19:31 am »
The other day I stumbled across a trick that lets me boot my SL-6000 even with the battery completely removed.  Of course, AC power is required.  Normally, if you take out the battery and hit the power button, the Power LED will just blink and nothing else happens.

But there's another alternate boot procedure.  It's the "D+B+reset" emergency boot that  boots into the special rescue/update partition.  And, I was astonished to find that this boot method works even with no battery.

Anyway, once the emergency boot is finished, you get a login: prompt.  Just type "root", and then, at the command line, type "reboot" and the Zaurus will reboot into the primary ROM.  All without any battery.

Anyway, I'm curious to know if this works on other models too.

Merry Christmas to everyone!

p.s.  The D+P service menu also works on my 6000 without the battery.  (D+M on most other models, I think)

Zaurus - pdaXrom / Where To Post Patches?
« on: December 24, 2005, 03:39:46 pm »
I couldn't find any attachments in the bug tracking system, and I didn't see anything in the FAQ either.  Anyway, do the pdaXrom developers have a preferred way to receive improvements and bugfixes from the community?

General Discussion / Sl-6000 Poll
« on: December 22, 2005, 01:05:55 pm »
I'm just wondering what people think of this rather.. unusual.. member of the Zaurus lineup, 2 years after its introduction.  Personally I love my Tosa and I think the software support keeps getting better and better.

Accessories / Bluetooth "smart Keyboard"
« on: December 22, 2005, 11:01:36 am »
I've just bought one of these, and I have to say it's fantastic.  I like it so much better than the PockeTop IR I had before.  I bought it instead of the ThinkOutside model because it has a dedicated number row, and also it has several function keys making possible a variety of Macro combinations.  The 6000 fits very comfortably in the built-in PDA rest in landscape orientation.

I got mine off ebay, but the product page is here:

There's a thorough review here:

Anyway, it wasn't supported out of the box, so I wrote a driver for it.  We can now add this to the list of working keyboards.  (the driver might need some tweaking for non-6000 models)

Sharp ROMs / Why Doesn't /dev/input/event0 Work?
« on: December 21, 2005, 05:57:21 pm »
root:~# ls -l /dev/input/event0
crw-rw-rw-    1 root     root      13,  64 Feb 17  2004 /dev/input/event0

root:~# modprobe evdev

root:~# lsmod
Module                  Size  Used by
evdev                   3568   0  (unused)

root:~# cat /dev/input/event0
cat: /dev/input/event0: No such device

What's the deal?  How do I use the evdev module?  I figured inserting the module would be enough, but I'm clearly missing something.

BTW, what I'm ultimately trying to do is inject scancodes into the keyboard.

For Sale / Wanted / Wanted: Broken Sl-6000
« on: December 16, 2005, 10:24:12 pm »
I want a broken SL-6000 to disassemble and study.  Make an offer if you're got one and you want to get rid of it.

6000 - Tosa / Sl-6000w Keyboard
« on: December 16, 2005, 08:46:23 pm »
I decided to get an SL-6000W since they are available again.  I was slightly surprised to see it had a different Japanese keyboard layout from my 6000L.  I suppose that's to be expected in hindsight, but I didn't see it coming.

Anyway, I installed the guylhem ROM and it mapped all the keys to their US positions.  It's very confusing.  I guess most other alternative ROMs probably use the US layout too.

Fellow 6000W owners, how have you dealt with this?

Off Topic forum / Fun And Games At The Zug
« on: December 15, 2005, 11:21:41 am »

It's absolutely hilarious!  Nice website name, btw.  

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