Hardware reference guide

Chapter 5: Reinstalling The OS

USB Download

Upgrading The Software Image

7535 Hardware Reference Guide

1. Hold down the Scan, Blue and Enter buttons simultaneously for 6

seconds. The 7535 reboots to the BooSt bootloader and displays text

similar to the following:

Psion Teklogix 753x BooSt.

Starting BooSt...

Graphical console connected.

CPU (rev = 0x5) clock 400 MHz

Psion Teklogix 7535 rev B

NAND flash: 32 MB (Samsung K9F5616U0B), 15 MB reserved for OS

partition

RAM: 64 MB

BooSt version I173o (0x3F68A35F)

PCon version I193n

Keyboard version 3

Boot code image info: size = 235296

BooSt OS for 753x

Build version I173o

SDMMC: SD Card 4 bit data bus enabled

753xOS.img image info: size = 12601941

753x Windows CE.NET

K053r

BooSt key combo detected.

OS load skipped.

Nothing connected to tether port

PDM connected to docking port

nand0-0 mounted: size = 16220160 (31680 * 512)

753x boot menu

--------------

1) Run main OS

!) Clean start main OS

2) Begin YMODEM load

3) Show configuration

4) Audio test

5) Display test

6) Touch test

7) RAM test

Command>

2. Connect the 7535 to your PC using the USB cable.