Exactly how do you update the DM42 Firmware?

[zeno333]

(12-28-2017 05:58 PM)Geoff Quickfall Wrote:  Assuming you have windows 10.xx:

A). Production DM42 does not have PGM pin hole. It does have a reset pinhole.

B). To navigate the setup menu on calculator use ‘up down’ keys or line select by pressing associated key aligned with the title in the menu.

C) on your computer create a DM42 folder and sub folders labelled for example:

- backup, dmtool, firmware updates and whatever else you want.

D) failure modes involve bad USB cable, windows update removing unsecured drivers, security scan removing updated drivers. All involve envoking administrator and reinstalling the driver back to the computer.

D). Download and unzip from here: Update 3.1

1) install the correct driver on your computer using these instructions: Driver installation for computer. You may or may not have to restart your computer.

2) plug calculator into computer USB port.

3) on calculator call up setup menu and select.

- SETUP/File>/Activate USB Disk >. **if all is correct you should see your FAT directory on a windows file folder on your computer screen. At this point I create a back folder on the computer and copy the FAT over to a backup folder labelled DM42/backup.

- eject the USB DISK with the EXIT key on the calculator or eject the USB drive from the computer. Remove the cable from the calculator.

4) install the latest DM42 tool file from: Latest dmtool for dm42

5) on computer, once dmtool is loaded by the windows wizard envoke (call) dmtool.exe.

6) on calculator:

- connect the calculator to the computer. Remember, dmtool is called first then calculator is plugged into computer USB.

- SETUP/System/Enter/Bootloader.

- on dmtool window on computer screen you should see a handshake between the calculator and the computer.

- select browse on the dmtool window and find the updated firmware file on your computer.

- select the file.

- select program on the dmtool window.

-watch the magic.

Geoff

Thanks for the info..I need more info on the installuing the USB driver though...the directions just mention selecting the stm32 file....I see the zip file for that in the files needed to update...What does one do with that stm32 zip file? the directions mention nothing about what to do with it..Does one unzip it?? what does one then do???Where does one put the file or files after one unzips it?...the river directions show the stm32 file being selected, but what does one need to do to get to that point??...And what is meant by your saying to 'call or invoke" the tools program, I do not know what that means. I know about starting a program, is that what you mean?