7535g2...How to change touch screens

Hi Chris,

To change the type of touch screen that is installed in a 7535g2 you must also set a BooSt flag.  BooSt is the Psion boot loader.  If you want to verify how your terminal is currently configured you can hold down the scan + blue + Enter for 6 seconds which will cause the 7535 to boot to our BooSt menu.  Then select option 3 to 'Show configuration'.  Note the 'Touch panel' type.

Here is a BooSt script to configure your 7535g2 to work with a 4 wire touch screen.

Here is a BooSt script to configure your 7535g2 to work with a 5 wire touch screen.

To install these BooSt scripts use the following process:

1. Copy the file to a USB stick, rename the file to 'pxa27x.img'
2. Boot your terminal to BooSt (press and hold scan + blue + Enter)
3. Install your 7535\7530 into a PDM and then insert the USB stick
4. The script should install and then cold boot to WinCE.
5. Use the process noted above to check the BooSt flag

Please let me know if this works for you. 

As you have stated these devices are out of warranty and remember that if you are not an Authorized Service Center hardware modifications like this will void any warranty that may be left and may also cause further problems servicing the hardware if they need to be returned to an Authorized Service Center in the future.

Paul

That worked just perfectly.

Thank you Paul.

Chris

Thanks Paul,

Just received a terminal back with wrong config of touch screen from the repair depot.