Originally Posted by kentzzs

Anybody has successful story?

Originally Posted by Will Y.

Yes-- mine has worked perfectly since I bought a new HFL for @ $160 from oemacuraparts.com and installed it just under 2 years ago.

Otherwise, a few members have been able to get their units working by baking the circuit board @ 385*F-- read from post #507 to the end at: https://acurazine.com/forums/showthread.php?t=792642.

Originally Posted by TT5TL

I finally fixed mine! (I just hope it stays fixed!) Ok, after some thorough troubleshooting, and lots of reading on this thread, I decided to bake my handsfree bluetooth link in the damn oven!! I know, it may sound crazy, but it worked!
Here is how I came to my wacky conclusion: After reading and reading, dang near everyones hfl at one point or another stopped working, wheather it be altogether dead, on, but not responding, or, like mine, on, responding, but not pairing. This was my 3rd go at it, and I'm stubborn, so I really wanted to figure out if there was ANY way to fix it instead of paying for a new one when CLEARLY Acura should be footing the bill for this obvious design flaw of this SAFETY feature. I took the hf assy out of the bezel, let it hang down and gently pushed, pulled, held, bent, twisted, turned, & tilted it, all the while trying to pair my droid 4 (and my gf's BB). My steering wheel controls would sometimes stop responding altogether during this process. I connected and disconected the green connector, pulled apart the 2 circuit boards (numerous times), which sometimes got me back the steering wheel control buttons, but NEVER successfully paired either phone. THEN, I discovered that when I put pressure on the capacitor on the larger circuit board, (this is the 'infamous' cap that many have replaced) the hfl 'woke up' and made this wierd scratchy noise. (still didn't work, but it reacted when I held slight pressure on it sideways) I thought I had it there, but still couldn't get it to work. Then I moved one spot over to the coil? power supply? next to it. Again, when I held slight pressure on it, the hfl reacted, still not working, but really got me thinking about another post that I read about on here about solder joints. I thought to myself, "self, this could definitely be the problem!" So, I remembered reading (to many posts on this thread, I can't find it again now!) that some folks had luck repairing all types of electronics by baking (or heating with a heat gun) the circuit board(s). This seemed to make sense in this case, as you would not be able to see a tiny, hairline, intermittant bad solder joint on these boards, and when I held pressure on certain components, I had varying results. So, I figured what the heck do I have to lose, it doesn't work now. I like the oven idea much better than the heat gun because the oven would provide even heating as opposed to the directional heating of the gun. I put aluminum foil on a cookie sheet, made little foil 'balls' to raise the boards up off the sheet for even heating and placed the 2 in the preheated 385 degree oven for 9 minutes. I don't know why, but I placed another piece of foil, like a cover over the 2 boards, (not touching the boards) but I didn't want the heat going directly on them, just evenly around them. The idea that the solder would melt and 'reconnect', repairing any potentially bad solder joints seemed to just make sense, and what do you know, IT WORKED! I plugged it back in and it went to the setup menu, then to the phone setup menu, and bam, paired up immediately! She's still hanging there but I talked on it for about 2 hours, 1 hour on my way to work and other hour on the way home. This MIGHT actually explain why some people had good results replacing the cap and some didn't. The cap may not have not necessarily been the cause, it may have been the cap's solder joint or a faulty solder joint of another component.
I really hope some of you have some luck baking your bluetooth! Make some brownies while you're at it! I will try to keep checking in to answer any questions and see if anyone else has any luck with this.

Originally Posted by omdabasha

My HFL failed on 08 Acura RDX. I went to the junkyard and got one from an 07 MDX different part numbers and has different outer case but from inside it is the same exact board and it worked!!

Originally Posted by sauceja

Yea, I am gonna try this. Better than just unplugging it and leaving it there not to ever be used again.

Here is post # 507

Originally Posted by Matt Gomez

When I took the card out of the oven and allowed it to cool, two small pieces had popped off. I know nothing about circuit boards. These are small black spools with copper wire coils on them, and each one has two small metal contact points on the bottom of the spool that match two contact points on the card. I hadn't read anyone else reporting this issue, specifically. Any advice for me? Should I solder the spools down to their respective contact points? (If so, I need to find a friend to borrow a soldering iron from....)

Originally Posted by DogP

I'd say that you have bigger problems than the inductors falling off... it looks like your BGA flash chip rotated a bit as well (I'm pretty sure that's not supposed to be turned like that). That'll be much tougher to fix.

Pat