Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

Same here, freq below 87.5MHz unable to switch off transmitter. But if you change freq. anything above 87.5Mhz, everything is working fine.
In my region, there is nothing below 87.5 MHz, Tuners here can't lower than 87.5Mhz. Isit possible to edit the FMTXD file, so that the lowest freq. is 87.5 Mhz???

Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

Just checked this.

Same happening to me.

Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

Is anybody working on fixing this ?

Or even just changing the minimum frequency to 87.5 ?

(or my suggestion of raising the maximum from 107.9 to 108.0 ?)

Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

The hardware is limited to 108.0 but we can only use up to 107.9 when hacking the Hex value.

It is uncleared on how to achieve 108.0 on the dot. Because if you can set to 108.X then you can set up to 108.9. Which is not logically understandable by the chip.

Minimum frequency is 76.0, you can use anything above 76.0Mhz as your minimum. For example I'm using 87.5Mhz as my everyday usage. This hack is has mixed result. I personally just tried reset my device to default setting and my FM Transmitter complaning again. I'm working on a solution to make it more reliable

Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

Lol! I've stuffed up! I accidentally deleted my /usr/bin folder instead of /usr/sbin folder. Now reflashing my N900, dued to cannot start up after reboot. lol.

I'm going to test this out once more. Last time I manage to get my FMTXD to work with all frequencies. But just now I only got it to work at 87.5Minimum.

Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

I can't achieve the same result I did before I reset my device.. But I found a simple working around method to get to as low as 76.0Mhz.

Simply switch the FM transmitter to 76.0Mhz from the start and then if you want to disable the FM transmitter then change the frequency to 87.5-> 109.9Mhz then disable FM transmitter.

If you want to go back to 78Mhz then just do it and if you want to disable it, simply switch the frequency to 87.5+ again then it will allowing you to disable the FM transmitter.

I'll keep trying to find a perminant way to solve this. It may be restricted to the firmware I'm using.

76.0Mhz -> To turn off, switch to any frequency higher than 87.5mhz

To enable anything below 87.5Mhz simply enable it from the start.

Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

Good News guy, I finally hacked my FM transmitter to work with all frequencies even below 87.5Mhz is able to switch able freely. There is only one variable that needed to be changed inside the system configuration.

Now the FM transmitter can be disable or enable, change down and change up freely without having to see "Unable to use FM transmitter" message when you changing from 87.5Mhz to below 87.4Mhz.

Solution hacked is very simple. :D
How did I not think of that, took me all night tried to reduce the minimum frequency to hack the system file. But no luck. I had to read through the Developer documentation of the hardware and software to find out how the damn thing works.

Now That I found the way to do it, I'm going to share with you all. ENJOY THE FREEDOM!

Here is the file, simply follow the folder structure and replace the file inside the zip file with the system file. Then you're all set.

Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

Nokia official Headset.

Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

For some reason, even as root, I can't delete this file.

I used rm -f

Did you have this problem?

Re: Modified (UNLOCKED) FM-Transmitter frequency 76.0Mhz->107.9Mhz
 

You can't delete it, you can do so by go to the directory through WinSCP and replace it with the one I upload.

Then it will work :)

Otherwise just Edit the file and change the region to 4.

I want to make it easier for people to do so I upload the file instead. But if you are confident with manually editing the file then you can :)
Make sure your FM-Transmitter is off and there process is not running.

Do it by Commandline.
From Xterminal:

root
killall fmtxd
killall fmtxd "just to double check"
cd /sys/class/i2c-adapter/i2c-2/2-0063

if you have leaf pad then do this:

leafpad region

replace the number in the file from 2 to 4.

Save and exit.

Enjoy!