Database Users

Is this possible? (component replacement)

I have a working TMOUS HD2 motherboard which have a "broken/ripped off" lcd connector.
I also have a non working/bricked TMOUS HD2 motherboard complete and without any physical problem.
Is there any possibility to replace this connector?
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Any help would be much appreciated.

Is the part here?
http://www.alibaba.com/showroom/parts-for-htc-hd2.html

I highly doubt it. That connector is more than likely surface mounted with little tiny pins soldered to the other side of the board, and would be amazingly difficult to remove and replace correctly by hand.

That's what I thought...
But it seems that I don't have nothing to lose...
I even have a third broken motherboard (also with a ripped lcd connector) where I can test the "removal" an "relocation" of the component. I know it's difficult, but there is too much to win and almost nothing to lose.
Any tech approach would be appreciated.

I tried to remove it with a heat gun.
It was VERY EASY and the removal was perfect!
Next I removed a good lcd connector from another phone (also without a problem) and that's where the problems began.
Soldering with a heat gun, which is not designed for precision work is like killing a bug with a bazooka... you will kill the bug but you will break something else...
End of story... ended with 2 non working motherboards and learned that I need a reworking station for this kind of work.

its easy I done them so many times without fail
MGA2009 said:
I tried to remove it with a heat gun.
It was VERY EASY and the removal was perfect!
Next I removed a good lcd connector from another phone (also without a problem) and that's where the problems began.
Soldering with a heat gun, which is not designed for precision work is like killing a bug with a bazooka... you will kill the bug but you will break something else...
End of story... ended with 2 non working motherboards and learned that I need a reworking station for this kind of work.
Click to expand...
Click to collapse
its easy and done it many times sorry you couldn't done it

Tips on how to replace the lcd connector on logic board
dan18 said:
its easy and done it many times sorry you couldn't done it
Click to expand...
Click to collapse
Sorry but can you assist some of us with the same problem in few short tips before I destroy my motherboard too

I might be wrong but is it just the clip that is broken? Do the contacts still connect? It might be possible to glue a thin strip of metal to the plastic ends of the motherboard's connector to hold the ribbon cable connector in place. Might work

[Q] Ideas to fix Broken Volume Key

In the process of trying to fix my loose hinge I must have broken my volume button. There is a tiny grey piece of plastic that gets pushed in. In the photo the volume button on the right is the up volume and works fine but down button doesn't have the grey piece.
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Does anybody have any ideas? I would be ok with replacing that whole little yellow switch if I have to. I have a pretty fine soldering iron tip.
help please!

If you're lucky, you might find a tact switch to replace the broken one in an electronics store or in a technical assistance for mobile phones, or you can try removing the tact switch and redo with some plastic, its not that hard to do.
Good luck.

echizen said:
If you're lucky, you might find a tact switch to replace the broken one in an electronics store or in a technical assistance for mobile phones, or you can try removing the tact switch and redo with some plastic, its not that hard to do.
Good luck.
Click to expand...
Click to collapse
Do you know of an online electronics shop that sells tact switches like this?
What do you mean by redoing with some plastic?
I have an old Palm Treo 650 that I'm going to tear apart and look for parts. I'm not at home right now but I found this picture and the buttons on the top left look very similar to the Desire Z ones.
Does anyone know if there are any electrical issues about the switch that I should consider before using a different one?

I was a cell tech for 5 years and replaces tons of volume and ptt switches. You can use a switch from any phone to replace it. Voltage doesn't matter on these and all seem to be the same size. You could probably buy a broken desire z or use one from any old phone. My old word of caution would be that some phones use ribbon (flex) wires that have a built-in switch that wouldn't be compatible for use. I know a ton of iden phones (older ones like i730/530/610) use the proper switches. Maybe a local sprint store might have some old water damged models that would be perfect. It would have to be a service center though. Good luck!
Oh and any non lead based solder will do but be sure you solder it down good. It make take a few tries and before to pull on the switch a little to make sure it was a secure burn...
Oh... lol! The treo switch will work fine as a replacement. Be sure to not burn off the the soldering pad on the board of your G2. And carefull with the removal of the treo's switch. They break easily...

Thanks so much sino8r!!!
I had an old samsung that uses the ribbon button you mention.
Now I just need to find my old Treo. I was letting my kids play with it and I thought it was sitting the the toy box. Now I have to rip apart my house looking for this thing. =)
Yeah I got non-lead based solder but I think I'll need to get a finer tip to my iron. I have the Hakko 936. Any tip recommendations?
Also, there looks to be 5 solder points on the Desire Z switch. Two on each side and on behind. The behind one isn't really shown in my picture. Do you know which solder points are the important ones and which ones are for strength?
I hope I can document my progress enough so that others with the same problem can fix their phones too!

sino8r, is this the phone you were talking about?

Why would you want to use lead free solder? Leaded solder has a lower melting point and flows much easier. I mean honestly, just use what you have on hand, but is there a reason why you would specify that he use lead free?

[GUIDE] Nexus 7 Motherboard Pin Repair (WiFi, Bluetooth, NFC)

I've had my 32GB Nexus 7 2012 (grouper) since it was released. I love it, or well, I did. Until about 12 months ago, the WiFi reception and speed plummeted into what may as well be hell in the stone ages. I couldn't find the problem. I thought it was something to do with software, as I had recently upgraded to a newer version of Android at the time. So, I dismissed it, and waited patiently for a fix. Nothing. So, it has been sitting there since KitKat was released, doing nothing.
Until now that is! I decided that I didn't want to look at it doing nothing anymore, so I researched far past page 2 of Google (Desperate times people, desperate times...) and I found this gem!
I strongly recommend you DO NOT perform that guide. It can damage your device even more. Instead, please use the guide below:
YOU WILL NEED:
Small knife or Electronics opening tool
Soldering Iron (Sorry)
Solder
Basic soldering skills
[URL="http://rover.ebay.com/rover/0/e11400.m1842.l5919/7?euid=f15f56b658ee4efebf0c8f34c466567e&loc=http%3A%2F%2Fpayments.ebay.co.uk%2Fws%2FeBayISAPI.dll%3FViewPaymentStatus%26transId%3D472422032026%26itemId%3D390820734137%26qu%3D1%26ssPageName%3DADME%3AL%3AOC%3AGB%3A5919&exe=11193&ext=27012&sojTags=exe=exe,ext=ext]Contact Fingers (As many that are broken on your device)[/URL]
Right, lets get started...
(Oh yeah, and to make sure you can't sue me if you mess up, I am not liable for any damage you cause to you or the device you're performing this guide on. This may also void the warranty on the device you are performing this guide on)
BEFORE YOU BEGIN!!!
Turn off your device
Ensure that your device is unplugged from any power source
1) Open the Nexus 7 carefully.
2) Find the broken contact(s). The red circle in the picture below annotates where one of the WiFi contacts is broken.
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3) Put the replacement contact finger(s) in place
4) Solder the new contact(s) onto the motherboard ensuring that the solder is only touching that contact
It's important that the solder is only touching one piece of metal, as otherwise the circuit will be shorted and your device may be damaged.
If you have messed up the soldering, there are tools to remove the solder, or you can re-heat it and try to wipe/scrape it off. The tool you want heats up, and sucks up the solder off the circuit board.
5) Leave the device for at least five minutes
6) Once you have left the device, check to see if the angle of the new contact is the same as the other ones. If not, gently bend it into place.
7) Place the casing back onto the Nexus 7, and press to lock it into place
8) Boot up your device
And that's it, you're done!!!! If this guide helped you, press thanks, and if you're feeling generous, donate
JJE990

Broken Link
Hi,
The link you have provided is no longer valid, I just thought that I would see what I could find and this is one of them:
hypertext protocol:worldwidewebdotdigikeydotcom/en/product-highlightslashwslashwurth-electronicsslashwe-secf-emi-contact-fingers
I can not be sure which one to choose. I see one very similar to what my N7 has just not 100% certain that it would be correct one and or fit.
Regards,
T

how does this apply to NFC? my NFC is not working and i opened the case, saw one pin was bended (NFC section PIN), tried to put it back up and it broke. You think that by fixing the pin will it work again?

st-ivan said:
how does this apply to NFC? my NFC is not working and i opened the case, saw one pin was bended (NFC section PIN), tried to put it back up and it broke. You think that by fixing the pin will it work again?
Click to expand...
Click to collapse
Why not? If that was the reason and you rectify it, it should work.

Canadian SM-G935W8 LTE Hardware Issue

Hello, I own the SM935W8 variant of the S7 Edge, bought directly from Samsung in Canada. Recently, I needed to do a capacitor/charge port replacement due to a torn ribbon cable. This is the module:
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After restarting, I lost all LTE reception. I saw the LTE statusbar icon flicker a couple times with very low bars, then it disappeared, never to be seen again. It's been a couple weeks. It was working fine immediately before. I'm almost certain it's a hardware issue incurred upon disassembly/reassembly. My phone has been opened more than ten times, owing to screen and camera issues. Lots of little parts to remove, maybe something wore. I already tried reseating all the hardware. I'm going to buy replacement coaxial antennae cables, because I'm thinking I may have bent a pin in one of them. This is the part:
However, I have a variant where the antenna doesn't go like that. Instead of 3 cables (right side, red/white/blueish), I have only two (left side, blue/white, partially obscured by bottom black piece). Note the lack of third, uppermost coaxial cable. Not a lot of documentation on these differences. The cables come for sale in either groups of 2 or 3.
In case replacing these cables doesn't work, what could the problem be? Does anyone know of any hardware part that, if broken, would cause loss of 4G signal specifically?
How about this part? Some websites simply call these pieces "motherboard cover", but other websites call it "antenna":
See here for website referring to these three pieces as "antennae". They do contain some pseudocircuitry that looks like it could contribute to cell reception. Since they're not super expensive, and I had problems making them fit back together 100% immediately before I lost the signal, I wonder if I should just replace them all too?
The only other thing of note is that I stripped one of the 15+ screw holes battening down the 3 black cover/"antenna" pieces that go over the hardware, hence I'm operating without one screw. The only feasible way this could contribute to the problem is if a certain amount of tension is required to keep some metal contacts together. It seems unlikely, but that's another reason to replace the black pieces.
I really don't think it's software related, although I haven't yet tried a factory reset or different ROM, kernel, or modem. I did try to see if it has anything to do with the APN settings, but sadly it didn't. I wonder what else it could be? Thanks for any guidance.

Axon 7 Repair

I dropped my Axon 7. Though there's no visible damage, the phone will frequently freeze (not turn off) and just continue to display whatever was on the screen at the time. Or the the charging LED will remain on if it was just charging and not actually booted, even if I unplug the phone.
I opened it up and reconnected all the cables, but no luck.
Once it starts, if left gently on a table it will continue to run, but if I jostle it it will likely freeze.
I've been experimenting and know I get the same behavior if the phone is running on AC with the battery disconnected (I think that worked...) , or if I run unplugged with the battery.
Any ideas? Since I already have the phone open and don't much have to loose, I'm willing to attempt more surgery, but I'm not sure how to diagnose the fault. (Yes, past the 2 year damage warranty).
Happy for your thoughts and suggestions!

There was a post on here with the exact same scenario, if I remember correctly it was a cable to the screen/display.
I've dropped phones and sometimes the pins bend slightly so check the connection pins.
I even repaired one that fell into a bowl of milk

found something?
Syberclone said:
There was a post on here with the exact same scenario, if I remember correctly it was a cable to the screen/display.
I've dropped phones and sometimes the pins bend slightly so check the connection pins.
I even repaired one that fell into a bowl of milk
Click to expand...
Click to collapse
Ok - What do you think about this? I can't tell if this is superficial. ($20 USB microscope I bought for my kids rocks)
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Assuming this is the issue, does replacing this cable mean removing the screen? I've heard that's hard...

I can't see from the pic properly but it is possible, the only way to know for sure is to compare with an original condition unit. (Looks better than some I've seen)
I was fortunate enough to have the same phone as a backup so I could check in my case.
Just make sure all connectors are snapped into place and no broken fragments in the connection.
I hope you get it sorted

Some pics of a brand new screen taken with my Axon and a small lens i had lying around

Syberclone said:
I can't see from the pic properly but it is possible, the only way to know for sure is to compare with an original condition unit. (Looks better than some I've seen)
I was fortunate enough to have the same phone as a backup so I could check in my case.
Just make sure all connectors are snapped into place and no broken fragments in the connection.
I hope you get it sorted
Click to expand...
Click to collapse
Just in case it wasn't clear what I was was keying in on.

dabramov said:
Just in case it wasn't clear what I was was keying in on.
Click to expand...
Click to collapse
That's in the outermost part, it will surely not cause anything at all...

Choose an username... said:
That's in the outermost part, it will surely not cause anything at all...
Click to expand...
Click to collapse
I was afraid of that. Back to the drawing board... or just wait for good Black Friday deals.