HXF (firmware) Files

This page contains the latest Tech Edge firmware in encrypted HXF file format. Files are copyright © Tech Edge and are free to be downloaded for use on any Tech Edge controller. Incorrect use can damage your display, your controller or the sensors connected to it! Note that HXF stands for HeX file Format, which is a slightly modified form of the Intel HEX file format.

Software Main

HXF files

wbUTIL (re-flash software)

The FLASH utility upgrades the code (or flash memory) as well data memory (EEPROM memory). You only need to upgrade when features you need are added, or when fixes are released. Note : Some feature upgrades may require small hardware changes to become fully operational.

Warning Note : Using the FLASH utility it is possible to swap between firmware for different Bosch LSU sensors and also to an NTK L1H1 sensor. It's almost certain you will also have to change jumper shunt settings for the controller to work properly with that sensor. If you don't then it's possible to destroy the sensor (heater overdriven and burns out), or to have inaccurate Lambda readings.

Download Latest HXF Files (as .zip)

The following table is composed of non-underlined links (eg. 0e62 ) to individual HXF files which are stored as .ZIP files (so your browser doesn't get confused (you can also use your browser's right click and "Save Link/Target As ..." feature). A collection of HXF files for a device is also available (eg. 2B0 48 ). Also shown are Links to the main page for the device (eg. 3An/3En [new window]) and also pop-up image(s) showing the device shunt(s) (eg. J3 ).


			WBo2 sensor used
Units		Device(s)	ALL	LSU 4.2	LSU 4.9	NTK L1H1	Shunt(s)
WBo2 Units current models		3An/3En	3A/E 62	0e62	2e62	1e61	J3	J6
		3B1	3B1 62	0B62	2B62	1B61t1	J3 & J6
		3H1	3H1 62	0f62	2f62	1f61t2	W3,4	J5,6
		2C0	2C0 62	0462	n/a	0561t1	J4
		2D0/2D1	2D0 62	0662	2662 *1	n/a	2D0	2D1
		2J1	n/a	0762	n/a	n/a	n/a
		2Y1	n/a	0862	n/a	n/a	λ module

Displays			LA1		0238
	LD02			0138
	LX1			0538
	BD1			0B37

WBo2 Units Older		2A0	2A0 48	0048	n/a	0149	J-NTK
		2A1	2A1 62	0a62	n/a	1a61t3	J-NTK
		2B0	2B0 48	0248	n/a	0349	J3
		2E0	2E0 58	0858v1	n/a	0949	J3

Display Note : The procedure for re-flashing displays is slightly different to WBo2 controllers. The display requires a small reflash adaptor as shown at right - part [PROGDSP]. The adaptor is usually supplied with new displays. The reflash procedure for displays is described in detail here.

Release Information

xx62 (Wideband) & xx38 (Displays) - Feb. '08

A release of updated firmware for newer Tech Edge controllers and displays. This release updates the available firmware in line with recently shipped units.

minor bug fixes and adjustments to logging and user interface.
Support has been added for LSU 4.9 on 2D0/2D1 models - this requires a small hardware change.

xx61 (LSU 4.9) & xx36 (Displays) - Feb '07

Some of our newer wideband controllers (3A/3E, 3B1, 3H1) now support the LSU 4.9 sensor which is quite different operationally to the LSU 4.0 and 4.2 sensors. Other new controllers (2J1), and existing controllers that we didn't have NTK firmware for (2A1), are also represented in this release. Full support for the LSU 4.9 and better support for the UEGO (NTK) sensor has forced us to update the display firmware as well.

0A08 (LSU 2A1) - 07 Dec '05

This release fixes the button press operation and other small bugs and should be applied ASAP. Note that you must use the new version (2.0 or greater) of the flash download utility for 2A1 support. Note also that the HXF file has a header dated October 13 '05 but the HXF file was made available on December 07 '05.

xx49 (NTK various) - 31 Aug '05

This applies to 2E0 and all models that support the NTK (aka UEGO) sensor. Support has been added for 2C0 & 2E0 we did not previously have an HXF file for. Note that we don't intend adding NTK support for 2D models.

xx48 (LSU various) - 14 Aug '05

We suggest you update your current firmware if you've ever seen your WBo2's red LED flash OFF sharply outside of the warmup period. This warning is also duplicated on the right decimal point (flashing ON) of LA1 and LD02 displays. The 48 release adds:

Single OFF (heater PID) and double OFF (wideband PID) flashing red LED to indicate PID unlock conditions. Note that for 2E0, LA1 & LD02 the right most decimal point acts the same way, but flashes ON.
more robust PID parameters for 2B0, 2C0, 2D0 & 2E0 units. This release solves some problems a very few people had with some vehicle installations.

Note: a new release of LA1 and LD02 firmware (available mid August '05) will duplicate this single/double flashing behaviour onto the display's right most decimal point.