Home PageFacebookRSS News Feed
Read the current newsletter! Weekly
MacFixer, the iPhone, iPod, and iPad specialists
Pocket GPS World - SatNavs | GPS | Speed Cameras: Forums

Pocket GPS World :: View topic - Flashing Holux GR-236 from 3.1.1 to 3.2.4 HELP!
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log in for private messagesLog in for private messages   Log inLog in 

Flashing Holux GR-236 from 3.1.1 to 3.2.4 HELP!

Post new topic   Reply to topic    Pocket GPS World Forum Index -> GPS Receivers
View previous topic :: View next topic  
Author Message
Occasional Visitor

Joined: Sep 03, 2008
Posts: 1

PostPosted: Wed Sep 03, 2008 6:51 am    Post subject: Flashing Holux GR-236 from 3.1.1 to 3.2.4 HELP! Reply with quote

I wish to flash my Holux GPS Slim 236 REV:C 2006.03.16 with firmware GSW3.1.1TO to 3.2.2 or 3.2.4 Perhaps might use 3.2.2 as others have noted bluetooth issues as well as SN being turned on. I have the correct Holux supplied usb-rs232 cable. I have managed using SirfDemo 3.83 to be able to change modes fro NMEA to sirf mode etc. I have managed to send serial messages in both NMEA (PSRF100,0,38400,8,1,0) and also send sirf serial messages like 148 (0x94) binary into it and get it to stop sending SIRF messages... I assume it's in "boot mode" to be able to flash it. My problem lies when I try to flash it or even read it for that matter. It doesn't seem to know the flash type/chip (SST39VF400A) I am totally uncertain of the settings to use in SIRFFlash 3.2 I know the memory space to read etc at 0x0 to 0x79999
These settings I don't understand what to set...
Communication Settings the checkbox for Full duplex... sites show and talk of older sirfflash version that doesn't have the option..
"Target boot mode state setting" Internal or External... does this mean how it was entered into boot mode? Whith external meaning sending a 94 command whilst in sirf mode? Internal the PCB jumper?
The other is Programming options... what should I use here? Erase relevant sections only, Erase whole chip or Update... What do I set it to?

If someone could please clarify and help this would be most excellent...


PS I downloaded the bins from this site...
If I had a checksum/MD5 of it I could know for certain if it was intact. Man I hate it when people post bin files not inside some kinda compression with a checksum... stupid
Also I am currious what flow control setting I should use for the usb cable's COM port... I know to set it to 38400,8,n,1 just not what flow control to use...
Back to top
View user's profile Send private message

Posted: Today    Post subject: Pocket GPS Advertising

Back to top
Display posts from previous:   
Post new topic   Reply to topic    Pocket GPS World Forum Index -> GPS Receivers All times are GMT + 1 Hour
Page 1 of 1

Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB 2.0.11 © 2001 phpBB Group
phpBB port v2.1 based on Tom Nitzschner's phpbb2.0.6 upgraded to phpBB 2.0.4 standalone was developed and tested by:
ArtificialIntel, ChatServ, mikem,
sixonetonoffun and Paul Laudanski (aka Zhen-Xjell).

Version 2.1 by Nuke Cops 2003 http://www.nukecops.com

Make a Donation

CamerAlert Database

Click here for the PocketGPSWorld.com Speed Camera Database

Download Speed Camera Database
20.094 (28 Sep 22)


Click here to submit camera positions to the PocketGPSWorld.com Speed Camera Database

12mth Subscriber memberships awarded every week for verified new camera reports!

Submit Speed Camera Locations Now

CamerAlert Apps

iOS QR Code

Android QR Code

Terms & Privacy

GPS Shopping