# Help on firmware upgrade for GM862-GPS **URL:** \ **Category:** Development Boards\ **Created:** [January 19, 2008, 10:55am UTC](https://community.sparkfun.com/t/help-on-firmware-upgrade-for-gm862-gps/6214 "2008-01-19T10:55:10Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![coli](https://avatars.discourse-cdn.com/v4/letter/c/bc79bd/32.png) [@coli](https://community.sparkfun.com/u/coli)\ **Post date:** [January 19, 2008, 10:55am UTC](https://community.sparkfun.com/t/help-on-firmware-upgrade-for-gm862-gps/6214/1 "2008-01-19T10:55:10Z")
Hello, I ask your help on firmware upgrade for GM862-GPS, my firmware is 07.02.401 and I’m trying to put the 07.02.404 but with no success. I use the sparkfun board with rs232. The problem is that when I release the ON pin (step 9, see above) I cannot see the message “Programming flash…” (step 10), keeps blinking state. Can you help me? Thanks in advance & Best Regards Carlos Oliveira My procedure: **UPGRADE PROCEDURE** 1-Unzip the TFI.zip file in your own folder. 2-Launch the TFI.exe . 3-Remove the supply from the module. 4-Connect the COM used port to the module RS232 connector in the EVK. 5-Select the baudrate and the COM port used. 6-Click over the “Download” button. A bar starts blinking. The message “Power ON the MS: Linking…” is shown on the right corner of the window. 7-Supply the module or the terminal. 8-Put the ON pin to low state for 5sec. (Terminal is automatically turned on) 9-Release the ON pin. The message “Programming flash…” is shown on the right corner of the window. 10-Wait until the window “Download succesfully completed” appears. ---
**Author:** ![eugehet](https://avatars.discourse-cdn.com/v4/letter/e/4da419/32.png) [@eugehet](https://community.sparkfun.com/u/eugehet)\ **Post date:** [January 19, 2008, 11:06am UTC](https://community.sparkfun.com/t/help-on-firmware-upgrade-for-gm862-gps/6214/2 "2008-01-19T11:06:49Z")
Maybe u can try to turn off the module and turn it on again. ---
**Author:** ![coli](https://avatars.discourse-cdn.com/v4/letter/c/bc79bd/32.png) [@coli](https://community.sparkfun.com/u/coli)\ **Post date:** [January 19, 2008, 11:15am UTC](https://community.sparkfun.com/t/help-on-firmware-upgrade-for-gm862-gps/6214/3 "2008-01-19T11:15:10Z")
but as you can see on the procedure I did that …four times , and I think i’ve been lucky , since I’m doing a very danger procedure, and my module still working… Somebody already do it with this module? ---
**Author:** ![velocet](https://avatars.discourse-cdn.com/v4/letter/v/85f322/32.png) [@velocet](https://community.sparkfun.com/u/velocet)\ **Post date:** [January 19, 2008, 8:15pm UTC](https://community.sparkfun.com/t/help-on-firmware-upgrade-for-gm862-gps/6214/4 "2008-01-19T20:15:46Z")
There is no need to remove the power, simply turn the unit off. Then follow your procedure which looks to be ok. A tried and tested version of the firmware here (I have used it a few times) When you do get it working you will have a very long wait for it to complete. Not sure if the fact that the DTR line has been switched is giving you the problem? [http://www.roundsolutions.com/techdocs/ … 04\_TFI.zip](http://www.roundsolutions.com/techdocs/fw/GM862_GPS_7.02.404_TFI.zip) ---
**Author:** ![coli](https://avatars.discourse-cdn.com/v4/letter/c/bc79bd/32.png) [@coli](https://community.sparkfun.com/u/coli)\ **Post date:** [January 20, 2008, 6:26pm UTC](https://community.sparkfun.com/t/help-on-firmware-upgrade-for-gm862-gps/6214/5 "2008-01-20T18:26:48Z")
Hi velocet, Unfortunately still not possible to upgrade ☹ do you know if is possible to go from the 401 to 404? I tried your suggestion DTR Hi and Low , but is the same… it does no pass from the message “Power ON the MS: Linking…” , I tried also with a desktop pc, because I use a laptop with an rs232 emulator and I was suspecting on this, but… I also increased the power supply from 9v to 12v on the module. Is this related with sparkfun rs232 module? Hope you can help me :-(… Best Regard ---
**Author:** ![velocet](https://avatars.discourse-cdn.com/v4/letter/v/85f322/32.png) [@velocet](https://community.sparkfun.com/u/velocet)\ **Post date:** [January 20, 2008, 7:20pm UTC](https://community.sparkfun.com/t/help-on-firmware-upgrade-for-gm862-gps/6214/6 "2008-01-20T19:20:24Z")
Hi Carlos, I use the roundsolutions boards and my own. I don’t have the sparkfun EVK but I did take a quick look at the schematics and the only difference I could see was the DTR line. There should be no problem with 401 to 404. You could download the 403 firmware [http://www.roundsolutions.com/techdocs/ … 03\_TFI.zip](http://www.roundsolutions.com/techdocs/fw/GM862_GPS_7.02.403_TFI.zip) and see if that goes any better. Use RSTerm [http://www.roundsolutions.com/techdocs/fw/rsterm.zip](http://www.roundsolutions.com/techdocs/fw/rsterm.zip) Just to check that everything is working fine 115200 baud hardware handshake. (all of this should be take care of by the module anyway but test). I have Just had another look at the schematic for the EVK, the only connections made to serial D socket are RX TX RTS CTS. The transfer program may well be checking for more than is provided. (just a stab in the dark) You may have to ask SF directly how you are ment to update firmware. :oops: ---
**Author:** ![coli](https://avatars.discourse-cdn.com/v4/letter/c/bc79bd/32.png) [@coli](https://community.sparkfun.com/u/coli)\ **Post date:** [January 20, 2008, 7:34pm UTC](https://community.sparkfun.com/t/help-on-firmware-upgrade-for-gm862-gps/6214/7 "2008-01-20T19:34:50Z")
Hi velocet Yes, I also have tried 403 and my module is working well with rsterm. I want to be able to be connected by gprs and also getting info from gps, so I think that I need o upgrade at least to 403 to have this working. I will ask for SF support! Thanks for your help! Regards :? ---
**Author:** ![coli](https://avatars.discourse-cdn.com/v4/letter/c/bc79bd/32.png) [@coli](https://community.sparkfun.com/u/coli)\ **Post date:** [January 27, 2008, 3:59pm UTC](https://community.sparkfun.com/t/help-on-firmware-upgrade-for-gm862-gps/6214/8 "2008-01-27T15:59:48Z")
Hello to all who read this topic, I solved my problem with firware upgrade, I must say that I made a search on this forum and found the answer for my question: [viewtopic.php?t=5754](http://forum.sparkfun.com/viewtopic.php?t=5754) Indeed the only thing that I made was a connection from pin 5 to GND, I the schematic from SF module this pin is connected to ground, unfortunatelly in the board is not. I must say that I already read this help topic in the past, but did not relate it with my board (V3) therefore did not pay so much attention to it. I other hand I asked technical support for this board from SF , but he only solution they found to me was a refond, I must say also that Im glad for theire answer and promplty porpuse me a money back refond , but as TS I was hoping a lot more help than this, even because this is a serious problem on theire board , most certainly many customers already complain about this. Nevertheless many thanks to all that reply me in my thread, and keep this good forum ! Regards Carlos