From time to time people are asking about schematics of JTAG cable for Zaurus machines. Such cable can be used to restore flash memory content after destroying it.

For all models newer then collie (SL-5000/5500) there is a hope still as they are much harder to brick. User can enter “Diagnostics menu” via magic keycombo (which usually is holding “D” and “P” during Power key on boot) and then use “NAND Restore” function (NAND Backups are available in few places — TRIsoft is one of them).

Anyway below you should see schematics of such cable — taken from collie service manual. On Zaurus side you have to use Hoshiden TCX3106 connector (docs were available on Sharp Deutschland website) and is available for few USD in Five Star Associates. How to use cable? Do not ask me — I never had to use JTAG.

Sharp Zaurus JTAG cable schematics

Sharp Zaurus JTAG cable