Question about Motorola Mobility RAZR V3

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Replaced Flip-Hinge; now can't hear incoming calls

So uhm, the side hinge on my phone fell out when I first got it. That was a year or so ago, I bought a replacement hinge and haven't had any problems since.

...until today. Now, I noticed the hinge was out and went to put it back in. After replacing it, I thought everything was fine. Then my phone rang, and I answered it but I couldn't hear any sound. The other person could hear me talking, the phone still makes other sounds, I just can't hear incoming calls I guess.

What should I do? I'm trying to take the hinge out, assuming maybe I slipped it in wrong (or something..?) but I have no idea how to take it out. Any help is much appreciated.

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  • HELP_ME_PLEA May 26, 2008

    I'm having the exact same problem, except when my left hinge cover fell out, a piece of it was broken off. It was not stepped on, nor did it fall on something hard, so I don't understand how it broke. Anyway, even though I've put it back in its place, I can no longer hear incoming or outgoing calls unless I turn on the speaker phone. How do I fix this?

  • Anonymous May 26, 2008

    I have the same problem. Speaker phone works fine, can't hear anything on the regular ear piece.

  • HELP_ME_PLEA May 11, 2010

    ^^ Thanks for a reply, but how does one make sure the speaker and cable ribbon are in their correct slots? I've never taken this phone apart before.

    Also, if the left hinge cover falls out, is should the screen be loose on the left side? The screen still works with no resolution problems, but I just can't hear anything not coming from the speaker at the bottom of the phone.


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Check and see if the speaker located to the bottom of the main-board is place back in the correct slot if not put it in or replaced it....replaced also the cable/ribbon that is located on the lcd.

Posted on Mar 21, 2008

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There are a number of things that can cause this, but the most likely is that the flexible PCB that connects the flip to the main board is damaged. It's not hard to replace, but it does require you to substantially dismantle the phone - it's the part that's threaded through the hinge in lower section of this photo.237dd5b.jpg
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I had the same problem with my Razr V3, it was way out of warranty so I had a go at fixing it, and it wasn't too hard.
(I had the blank/off screen problem but the rest of the phone seemed functional)

I took off the rubber pegs on the inside of the flip-screen to reveal the screws. They need a T5 screwdriver head (tiny star shape). I removed all 4 from that side.
I then 'forced' the back casing of the flip-screen off (side with camera). The key is to open the end furthest from the hinge, then it will simply lift off.
(I read a complicated guide suggesting that you use something like a creditcard to slide it off, I'd give that a go first as I did do some scratch damage when using the screwdriver)
Once open (might be dusty), there was a thin 'belt' coming through from the main part of the handset (by the hinge), it has a black square on it. This was simply flailing about, so I inserted it securely back into it's socket (the only place it can go, same shape)
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I would re-attach the back panel hinge end first (camera end).
Then simply screw it back together.

The T5 screwdriver isn't everyday stuff, most sets only go down to T10 it seems. Maybe if you have family friend who fixes things you could borrow one. Apparently those types of screws are used somewhere in cars so maybe a mechanic or car-person?
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Be very carefull with the phone. The main cable runs through that left side.

Look on Ebay for a Left hinge pin for the V3. Also knows as the left knuckle.

Make sure you look for the V3. Not Razr.

If your speaker goes out, or you lose display before you get the Knuckle, you need to get a keypad flex also.

If not, get the Knuckle, and it just slides in. MAKE SURE before you pop it in that there are no pieces of the old one in there and that you don't pinch that cable.

I can fix it for you if you send it to our business, but if you're careful, you shouldn't have a problem.

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the hinge is the middle of the phone where the top and bottom of the phone meet think of it this way if u close ur razor the top of the phone is the hinge its the things where it has two shiney cirlces on each sides hope that advice helps thanx.

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eBay! You can find all parts there.

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I know what you r talking about because the hinge on my phone is loos, it didn't fall off yet. I have the blue razr but it's with t-mobile and it's unlocked so they wont fix it. T-Mobile is very helpful but u should call moterola and they will fix it 4 u. And if they give u a hard time talk to the manager.

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