[Q] PCB replacement Q (Damaged Flex Cable) - G2 and Desire Z Q&A, Help & Troubleshooting

Hey There,
I am attempting to try and fix my phone because it has multiple problems associated with it such as a nonfunctional power button, a faulty in-call speaker, and blind spots within the digitizer that are unresponsive.
My guess is that the prior owner dropped the phone and some damage was sustained to the flex cable/pcb which runs to all of these things causing the phone to have some broken connections here and there.
I plan to use a teardown/repair guide to use this, BUT!
Does anyone know what else might be the problem, and where can I find a replace flex cable/pcb and how much do they usually go for?
I live in Canada...
Appreciate it.

You can get them off ebay for ~50 USD. ebay item number 260744426322. It's from China and will take forever but that's about it. Sounds like a flex cable though, hopefully it doesn't need a new digitizer too.

Related

Flex Cable change gives errors PLEASE HELP

Hi dear developers!
I got a Touch Pro 2 from a friend, it's a GSM device he bought in Germany (O2). I changed a few parts but messed the main flex cable. The part from the power button is not connected anymore, a clean cut through, no repairs possible as far i think. So i bought a new one over ebay from Hong Kong. The seller told me it's for a GSM device BUT the cables do not look the same. The production date is 2008 and the damaged one was produced 2009. I built everything together and now the big surprise:
Phone boots normally but when the Home screen appears, it is always in landscape mode. No matter if the phone is closed or the keyboard open. I can only change the screen over advanced tools, but after soft reset again only landscape mode. The buttons for calling also do not work (those two down on the screen when you want to call someone or end a call ---> no reaction).
A hard reset and new ROM (energy) didn't change anything. By the way, the keyboard only fires up after pressing a button. Before it automatically lightened up after sliding.
What the hell is wrong now, did the send me a CDMA cable? Where is the difference ? Please help me i do not want to spent another 30 bucks again for a proper flex cable.
Edit: I disassembled the phone again and took a closer look on the flex cable: the lower part (with the LCD connection etc) looks quite same except for 3 or 4 transistors and their position on the PCB. The upper part with the earpice looks way different. The positioning of the single parts is not the same. But how can that interfere ? Guess there is no problem with the mainboard or the LCD (which is brand new).
Here are some pictures
h**p//img28.imageshack.us/img28/1514/image2sh
h**p://img849.imageshack.us/img849/8167/img1609m.jpg
OK, i solved the problem. The guy who sold the flex cable sent me a older one as I described. This thing was fully responsible for the errors. Bought a new one and everything works fine now^^ So if you ever want to change your Flex cable take good care which one you buy (especially on ebay!)
Btw: The display and the digitizer are glued and IF you want to replace any of those two, do yourself the favor and buy the complete bundle !!! I made the mistake and tried to replace the digitizer and cracked the display. There is no way as far as I can say, that you can manage this.
Bye
Can u post the seller info? Im in the same situation w a different phone... Thanks

[Q] broken power micro switch!!!!!

First went to replace digitizer, then removing it cracked my lcd screen,then the micro switch for the power button(also the volume buttons) solder broke off and now I need a microswitch or 2. Anyone have any ideas?
i suggest a repair store... if you don't have insurance otherwise it'll just be cheaper to get a replacement through there... seems like a big mess to me if you'd like to try your luck your best bet would be getting another broken eve from craigs list for parts

Replacement screws

Hey all, I just recently fixed my inc2 and in the process I lost all but 1 of the screws that hold the board down to the phone as well as the screw that holds the USB port down and have searched high (mostly) and low for a replacement set with no luck. Does anybody know of a vendor that sells just the screws? I replaced the LCD, digitizer, both speakers, and the USB but am really afraid to drop it with nothing holding it together. Btw I replaced all of that for under 40$
Sent from my Incredibly still working

USB Port/Daughterboard Replacement

Some how (isn't that what they all say) got water in my GNex USB Port which caused the port to fry once charger was plugged in. Phone still fully functions as normal, just can't charge it. After pricing out a few options, I've decided to replace the part myself. Should everything go well, this should save me at least $35.
Just wondering if anyone else here as had to do this, would love to hear how it went for you. I'm currently waiting for the part to be shipped to me.
There's been quite a few people (not me so far) who've had to change their usb ports because they failed (stopped charging). There's several threads on how to do it, I've not bookmarked them but search would probably turn them up.
Should be pretty simple if the charging port is on a daughterboard and not on the main PCB. It's pretty easy to remove the lcd/digitizer + mainboard from the housing, and if it's just a daughterboard you should be able to disconnect the old part from the connector and attach the new one.
Thanks for the replies! ifixit.com actually has a detailed step by step, just wanted to see if anyone here ran into any issues while doing it or not.
Careful with the buttons
Gforce083 said:
Thanks for the replies! ifixit.com actually has a detailed step by step, just wanted to see if anyone here ran into any issues while doing it or not.
Click to expand...
Click to collapse
Its fairly easy to replace the USB board if done with care and proper tools. A word of advice, when you remove the back cover ( the step after removing screws) pay attention to not drop the rubber buttons..... they are hard to find once they hit the floor . Anything than that, just do it with love and you will do fine
Success! Time to put the Aria back in the closet!
I take that back, the microphone (which is part of the usb port board) on the new board does not work. Attempted to make a phone call and they could not hear me. Used a voice recording app and got nothing. Looks like I'll be getting another replacement.
I've got to hand it to Wholesale Gadget Parts, Inc out of Oklahoma. That's saying a lot coming from a Texan, we usually aren't too fond of Oklahoma. As stated the other day, the replacement board I got had a faulty microphone. Called WGP, no questions asked shipped me a new one and got it within 48 hours. My GNex is now back to fully functioning order!

[Q] Phone Transplant (Xperia S LT26i)

I have an old Xperia S (LT26i) with me and i accidentally dropped it from the 2nd floor. Fortunately, it did not break into many pieces but it did bok the screen on the top left corner and also broke the plastic housing that where the on/off buttom cap is attached. it also caused some damage on the power switch which cause to not work anymore. the accelerometer and the gyro no longer works after that..
I was able to get my hands on another defective LT26i which the old user somewhat broke the board for a cheap price of $20 and instead of buying a new screen/a new Power Button Flex Cable Ribbon and a new case which will cause me around $90 in total (including shipping), is it possible if I just dismantle the the one with the defective board and use its Power Button Flex Cable Ribbon/Housing/Digitizer and put it into mine? will it still work after that?
Ive been looking into some information and i think it would work but i wanted to be sure by asking you pros
and will i be able to fix the accelerometer and gyro as well because it seems like i cannot find the location of the acc/gyro on the device.
Im looking at this for reference: sonymania.cz/storage/1331332888_sb_xperia_s_wi.pdf
Any information would really help.. Thanks in advance

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