Hello,
I had the same problem. If you don\'t format your user flash after the tkcRom flash it won\'t boot. These instructions helped me:
**** from ZUG somewhere (I think) *****
Make sure you have the updater.sh and initrd.bin files in the root of your cf/sd card.
(Yes, you can use either cf or sd to flash now!)
Make sure the Zaurus isn\'t plugged into AC power.
Remove battery for at least 5 seconds.
Replace battery (replace battery cover, lock cover), plug in AC power.
Press and hold the \"OK\" button on the keyboard.
Turn the power on, you should see the Japanese service menu:
Now Plug in the Power Cord.
(You will get an error if it isn\'t plugged in!)
Select option 4 (flash/update).
You then have four options (1. USB, 2. CF, 3. SD, 4. ?? it\'s in Japanese!)
Choose either option 2 or 3, depending on which media you put the files on.
Select Yes in the confirmation window (left option with the \"Y\").
( If you don\'t get a Yes/No choice you don\'t have the Power Plugged in!)
Screen will go black for a couple seconds, you\'ll then get the Sharp
splash screen (Sharp logo in red, Japanese characters below).
Then the screen will go black, and display
\"--- Zaurus CF updater ---\" and you can monitor the progress.
It will finish, and reboot your Z automatically.
After reboot, turn off your Z and proceed with the Format Internal Flash instructions.
Format Internal Flash
Perform steps 1 - 7 above (to get to the service menu):
Select option 3 (Erase all / Format (all data will be lost!))
You should then get a confirmation message (in Japanese) with a Yes/No
option (left one is Yes). Click the Yes button to confirm.
(If you don\'t get this, then you don\'t have the AC power plugged in.)
*************
Greetings
Fabian
