[Q] Motherboard Component ID - G3 Q&A, Help & Troubleshooting

Hi guys,
My Verizon G3 took a dive out the car window and needs help. I bought a replacement screen, and I believe it probably works, but I'm not getting any image. I then noticed that there is a small component on the board that is broken. I was hoping someone could help me identify the part number. It is a small black piece right above the battery and below the ambient light sensor. I found the G3 service manual, and it says the part is U7303, but I am unable to find that anywhere, so I hoped there might be a number on the component itself that I could look up. Thanks for any help you can give!
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Hi,
i think you will not get this part anywhere to buy, because it is integrated on motherboard. I recommend you to get a new motherboard or to find a broken G3 with working motherboard.
This is my choice good luck.

Bobek1988 said:
Hi,
i think you will not get this part anywhere to buy, because it is integrated on motherboard. I recommend you to get a new motherboard or to find a broken G3 with working motherboard.
This is my choice good luck.
Click to expand...
Click to collapse
Yeah I think that's my option at this point.. I did find a snippet that refers to U7303 as a fixed positive LDO regulator, rp103k121d-tr part number, but there's not really anywhere I can buy that from without going in bulk lol.

Related

[Need spare parts] Info about nut and speaker grid

Coucou !
I'm desesparate as I need some spare parts I don't know where to find.
It is the two goldent nuts stucked in the bezel, as shown on the picture below, top-left corner and bottom-left corner.
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I also need a speaker grid for my HTC Rhodium, as it is stuck in glue.
I don't know where to buy them, so if you know a site, I'll be glad to buy them these parts.
Thanks a lot.
I seriously doubt that you can buy these parts separately. You may have to either purchase a damaged device and salvage the parts you need or purchase the entire front bezel to get them. I have never seen them sold separately.
Coucou !
In fact, I HAVE to buy a new bezel, but the ones I saw were NOT sold with these parts, neither the golden nut (I hope it's the correct word!) nor the speaker grid.
But if you know where to buy a bezel with these, I'll be glad to buy these there!
By the way, thanks for your answer.
Why not try to get them from the website you got the image from? It seems the gold nuts are included in that picture. Otherwise, just purchase a defective device for cheap and swap the parts.
Coucou!
Ask for these to that russian website? I have to admit I didn't think about it...
Now, I did it and I'm waiting for their answer. I'll stay in contact.
Thanks for the advice

ok so what part is this and where can i get one?

and not just the front facing cam i mean that entire assembly complete including digitizer,lcd screen and what ever else is in there
Uploaded with ImageShack.us
I take it you cracked yours?
We just call it the "screen". It's the LCD with digitizer pre-fitted. Earpiece speaker and front cam are not included, you'll have to transfer them from the old screen to the new one.
any idea where i can get one? anything i search for i only get lcd screens and digitizers. i bought 2 digitizers for $45 dollars before i realized replacing one was probably above my ability
http://www.durapowerglobal.com/HTC-Evo-4G-Parts_c_203.html?gclid=CP2supzaj6gCFcm8Kgod9X6sEA
cool so i found them on that site. only problem is how do i know if i have a wide cable or not. its not to easy to distinguish from the pictures ive found. i have hardware v.0003 and im not opposed to opening up my phone to see but i need to know what to look for.
Arnezie said:
http://www.durapowerglobal.com/HTC-Evo-4G-Parts_c_203.html?gclid=CP2supzaj6gCFcm8Kgod9X6sEA
Click to expand...
Click to collapse
That I'm not sure about??
bumping this if anyone knows how to determine a small cable from a wide cable
http://www.ifixit.com/Teardown/HTC-Evo-4G-Teardown/2979/1
you have to open it, it's the cable nearest the charging port. if the bottom two are about the same size then you have the big one. hope that helps
edit:
also the smaller ribbon has the connection a little further into the board where as the big one you'll see it right on the edge of the board
ok cool so from what i remember when i did open it i would have the wide one
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maybe this will help

[Q] Any ideas what's broken on my Desire-z? Help!

Hello!
My phone dropped like half a meter to the floor and after that it has been doing this..
I also tried to flash and install rom again but doesnt work. So it's broken inside.
Any idea's?
http://www.youtube.com/watch?v=hWjGwLEGiSU
No way to know for sure without physical inspection.
If I had to guess I'd say the cable connecting the screen may have come loose.
rarara77 said:
No way to know for sure without physical inspection.
If I had to guess I'd say the cable connecting the screen may have come loose.
Click to expand...
Click to collapse
Yeah. Was about to think that cable too. Gotta wait till i get opening kit and report after!
Okay, after disassembling and investigating i found the problem.
When i press this part of the phone with finger(red circle), it starts to flicker and bug like in the video above..
What this cable actually does, and how i could fix it..? Is it connecting to screen? Didnt found good guide to disassemble more so didnt do it.
Do i need to replace whole piece of phone.. (rounded with cyan color)?
without the back cover it works way better than with it.
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Should i just order this?
http://www.parts4repair.com/htc-desire-z-slide-flex-cable-ribbon/
Or hmm. I just check is the cable connected properly. Need to disassemble whole phone. sigh.

Need help - microphone fell off motherboard during LCD replacement

On the bottom left of the motherboard in this picture:
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What is that small silver block for, and what do I use to reattach it? Solder?
Thanks!
ok, after more research (thanks to the repair manual which I've attached) I've figured out what this component is called, but still no idea what it is for. Looks like there are 2 of these, one on each side of the motherboard, so if it's not necessary I can live without it.
Component is called "Filter 0.0 Hz 0402", what is that for?
The manual also says to remove/mount using Hot Air, but this is territory I don't have experience with. Do I need some kind of glue/paste to spread before using a heat gun to remount it?
Err I think it's a microphone.
Ok, yeah, I have figured out it's a microphone, and it seems to be the primary one facing in (positioned in the spot where your mouth would be when you talk on the phone), with the secondary facing out for when recording video...
Which brings up the question, how do I mount it? I'm being told that the for "pegs" of the microphone need to remain separately attached to the MB, so some glue wouldn't work since that would make it one big connection like a heatsink. Any ideas?

BS3 screen not giving image. HELP

Hello. I need help urgently.
By the end of august, my phone's screen stopped giving image. I was playing and all of the sudden it lagged and turned pitch black. I took it to a technician and they told me it seem an LCD problem. I replaced the screen but that also didn't work. I replaced the LCD flex also didn't work. Lastly I bought another motherboard thinking that would fix everything but also did not work. The weird thing is that it does the charging sound, the touch sound when I place my finger on the screen but it just doesn't give any image at all. I don't know what's wrong and the technicians around my place couldn't be able to help me. I have some photos of the replacement parts I bought which work but don't give any image, just sound when I touch the screen.
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This one is the LCD main flex replacement I bought, its the same as the original, a KLE-A0 . Tested before shipping it works.
This one is the 2 replacements screens. The one above is an LCD screen (stopped working suddenly) and the one below is an AMOLED screen. Both tested before shipping, supposedly work. (giving the sound but no image).
Replacement motherboard I bought less than 3 weeks ago, original. Also works. Tested before shipping.
I really don't know what to do, I have spent months trying to fix this. Please help me. If you need more info, I will gladly give out more details if neccesary.

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