FM Radio Discussion - Page 7

**MordyT** · #61 (**permalink**) 11-29-2009, 01:59 AM

Quote:

Originally Posted by whunderboy

Ok guys. I have once again gained enough steam to, yet again, dig into my Sprint Touch Pro.

BTW: I do know this is old news, but some of us are too poor to get the TP2 yet. Until I get the funds to get a TP2, I'll keep cracking away at the TP.

After replacing the drivers with the old versions (from this site) I installed the cab file for the radio (also, on this site). What did I get... nada. Except, it was operating the HW.

I know, I know. Old news. Before flaming, please hear me out.

With the above in mind, I cracked it open and put a conductive paste across each "missing" passive joint. For example, If a resistor was suppose to be here in the "radio enabled" version, and removed on the current version, the paste will create a loose connection that should enable the radio. Once again, I did this across ALL missing components without discrimination.

My results? Well I was able to tune to three local stations (read stations less than a quarter mile away), but still no audio. I did put the output of the phone into a very large amp and heard something promising. I heard the internal amp engage for about ten seconds whenever I tuned, muted, or changed volume. When it was engaged I could just barely make out music and voices. As a reminder, that was through a very large amp!

Well folks, I have stretched my little Touch Pro just about as far as I dare. If anyone has any suggestions, questions, or comments; I'll be glad to hear them!

Daniel

It seems like progress....
So, it appears to be disabled in the hardware
Can be enabled with some work but audio is weak - but works...
Maybe you need other drivers to up the volume?

psiphi · #62 (**permalink**) 12-03-2009, 06:51 PM

Could be as simple as the conductive paste wasn't passing the expected votage... Sounds like you need to take a meter those points on a phone whose radio is confirmed to be working and compair to yours...

DrUnKeN_TiGeR · #63 (**permalink**) 12-03-2009, 07:27 PM

sounds like progress bro props to putting the paste on all the open connections could have fried that thing

tom.etc · #64 (**permalink**) 12-04-2009, 12:27 AM

Quote:

Originally Posted by whunderboy

Ok guys. I have once again gained enough steam to, yet again, dig into my Sprint Touch Pro.

BTW: I do know this is old news, but some of us are too poor to get the TP2 yet. Until I get the funds to get a TP2, I'll keep cracking away at the TP.

After replacing the drivers with the old versions (from this site) I installed the cab file for the radio (also, on this site). What did I get... nada. Except, it was operating the HW.

I know, I know. Old news. Before flaming, please hear me out.

With the above in mind, I cracked it open and put a conductive paste across each "missing" passive joint. For example, If a resistor was suppose to be here in the "radio enabled" version, and removed on the current version, the paste will create a loose connection that should enable the radio. Once again, I did this across ALL missing components without discrimination.

My results? Well I was able to tune to three local stations (read stations less than a quarter mile away), but still no audio. I did put the output of the phone into a very large amp and heard something promising. I heard the internal amp engage for about ten seconds whenever I tuned, muted, or changed volume. When it was engaged I could just barely make out music and voices. As a reminder, that was through a very large amp!

Well folks, I have stretched my little Touch Pro just about as far as I dare. If anyone has any suggestions, questions, or comments; I'll be glad to hear them!

Daniel

that's ballsy! i admire your sand. got schematics of the points you conected? i have some electroics experience and i might be willing to go fight club on my TP with a DMM

whunderboy · #65 (**permalink**) 12-14-2009, 11:27 PM

Quote:

Originally Posted by tom.etc

that's ballsy! i admire your sand. got schematics of the points you conected? i have some electroics experience and i might be willing to go fight club on my TP with a DMM

Well here you go! I can dig down into these circuit boards no prob as long as I know the circuit. It never ceases to amaze me on how you guys can reverse engineer these things.

PS. Phone is still running just as strong as before I did the experiment. GL!

**[sammich]** · #66 (**permalink**) 12-16-2009, 03:17 AM

Quote:

Originally Posted by whunderboy

Well here you go! I can dig down into these circuit boards no prob as long as I know the circuit. It never ceases to amaze me on how you guys can reverse engineer these things.

PS. Phone is still running just as strong as before I did the experiment. GL!

Impressive work, to say the least. Thanks for contributing and trying this out on your own phone!

jkuczera · #67 (**permalink**) 01-12-2010, 02:15 AM

Do we have a picture to compare from a cdma diamond?

abello00 · #68 (**permalink**) 03-22-2010, 01:52 AM

Looks like the HTC engineers won this round. Even if the FM chip is in there (which it obviously is), the fact that they left out some of the resistors and left it an open circuit really kills any chance of us reverse engineering this stuff. Even if I go ahead and solder the right resistors onto the chip successfully, how many other people have access to soldering irons and have any idea on how to properly solder resistors onto a microchip. The amount of time, effort and risk of doing this isn't worth the benefit. You may have won this round HTC... but we will win the war

. BTW I just upgraded my TP2 with Win 6.5 (the official release from HTC/Sprint)... 2 words... Love It

**MordyT** · #69 (**permalink**) 03-22-2010, 02:57 AM

you do know this is the tp1 forum...

**[sammich]** · #70 (**permalink**) 03-22-2010, 03:06 AM

Quote:

Originally Posted by MordyT

you do know this is the tp1 forum...

Either way, we're screwed out of a FM radio!