I have a question regarding the changing process of the G1 motherboard.
I bricked my device by flashing a SPL, so it does not go past the G1 screen. Now i bought another G1 with a damaged touchscreen (screen works, but doesnt recognise the fingers) and want to use the working mainboard to insert into my G1.
Is there something I have to pay attenton to like some software barrier or something like that?
My plan was to only use the mainboard and keep my UMTS/GSM and GPS modules. Will this work? Where is the baseband stored at, on the mainboard, or on the GSM module?
Thanks.
Unless it uses different frequencies, might be easier to just swap the screen.
I've read the TechManual and its easier to swap the mainboard.
when you take it apart, remove the camera, IMEI Plate, and motherbaord as one piece. Transplant that as a whole, that way the IMEI is correct for the board, and the camera connection will not get fubar'd as they often do. Everything is on the mainboard, the other modules are just modules- the phone will run without them. BE CAREFUL not to pinch a coax cable when putting back together!
MUCH easier to swap the board, the disassembly beyond the motherboard is a PITA. I have been there, done that...it is a long process with many chaces for screwing up a cable.
What do you mean by the "IMEI Plate"?
the black sticker plate that carries all the imei and other important data that you see when you take the battery out
It is double side taped on loosely, gently lift the camera module and it will lift with the ribbon as an assembly
http://www.phonewreck.com/2008/12/09/t-mobile-g1-review-and-teardown/
Hello, Today I will show you how to replace a problematic sim/microsd/volume/power. The reason why they can be fixed together is because they are all on the same PCB that we will be replacing.
I made this guide because I went snowboarding and I dropped my phone in the snow. I tried the rice trick but after that my power button was still dying. I looked up prices for getting a professional to replace it and it was around $60 for a part that costs $10 MAX. So i just bought the part off of ebay and documented my process
EDIT: if the pictures don't show up, just right click and open in new tab for now
EDIT: There is now no need to remove the motherboard to solve this issue
Credits:
http://www.youtube.com/user/RepairsUniverse
and
http://www.youtube.com/user/RuedasLocas
DISCLAIMER: I DO NOT TAKE ANY RESPONSIBILITY IF YOU MANAGE TO MESS UP YOUR DEVICE. TRY AT YOUR OWN RISK.
Prerequisite:
-A brain​-Spare Sim Card Reader Tray Holder
http://www.ebay.com/itm/New-Hot-Sim...x-Cable-Replacement-for-LG-P880-/301129602162
-Read/Watch all the links below
http://androidforums.com/lg-optimus...us-4x-hd-screen-replacement-repair-guide.html
http://www.youtube.com/watch?v=WFmHFNKY8og
http://www.youtube.com/watch?v=kGD64_g-ssE
After you are done, do it again to make sure you understand it
You can download these pictures from here
https://www.dropbox.com/sh/8kdrxz28aku1x9x/tMsO_WAAuV
Tools I Used:
Small flathead
Small Philipshead
Thin pointy object
Scissors
https://www.dropbox.com/s/p9es5uyfej3jymz/1.jpg
https://www.dropbox.com/s/1evpx5782ei5nen/2.jpg
1) Remove these Screws only because the others are not required
https://www.dropbox.com/s/lub8senef5uhsqa/IMG_20140414_151433.jpg
https://www.dropbox.com/s/3dw6lf5rtqsslut/IMG_20140414_153856.jpg
2) Use the flathead to pry off the cover from the frame
https://www.dropbox.com/s/1nqhr45zzoa4ssf/IMG_20140414_151527.jpg
https://www.dropbox.com/s/a0ladgpn954fpkr/IMG_20140414_151534.jpg
3) Use the flathead to pry off the cover from the frame
https://www.dropbox.com/s/1nqhr45zzoa4ssf/IMG_20140414_151527.jpg
https://www.dropbox.com/s/a0ladgpn954fpkr/IMG_20140414_151534.jpg
4) This is what it should look like
https://www.dropbox.com/s/fzb7wh8jnn4ljwq/IMG_20140414_151604.jpg
https://www.dropbox.com/s/rcbyzvql8uy6p20/IMG_20140414_151627.jpg
5) Remove the silver screw with the philips head and put it in a safe place
https://www.dropbox.com/s/0u1yl88w08y5011/IMG_20140414_151702.jpg
New "easy" method
6) You DO NOT need to remove all the connectors, only the ones in red
https://www.dropbox.com/s/5cgxcq2ocm7fkwi/IMG_20140414_151844 - Copy.jpg
Take note that the electronic above the sim card slot just needs to be peeled off gently, It is NOT a connector but it does rest on top of the PCB.
Also, you'll need to pry off the vibration motor (the circle to the right of the Sim card slot) as it is glued in
7) This is what the PCB looks like when separated from the motherboard
Note: your motherboard will still be in your phone, i just wanted to shop you what both parts look like
https://www.dropbox.com/s/6ysyid9eu2v5jjw/IMG_20140414_152536.jpg
8) Get out your new PCB
https://www.dropbox.com/s/6130c74hcx...414_152619.jpg
If The PCB you ordered did not come with the shielding then follow these steps
Note: Your motherboard should still be in your phone
8.a) Remove the shielding from the back of the original PCB, be careful of the glue to not damage any components
https://www.dropbox.com/s/nfpuwzf3om1ib3s/IMG_20140414_152657.jpg
https://www.dropbox.com/s/73sbx0k32f4x5x4/IMG_20140414_152731.jpg
8.b) Now, put the shielding back onto the motherboard, it should fit into place nicely
https://www.dropbox.com/s/li966nnqujajgog/IMG_20140414_153037.jpg
8.c) Take out your new PCB and connect the connector to the motherboard before, placing it on the shielding
https://www.dropbox.com/s/mn97igyuir7o9q6/IMG_20140414_153154.jpg
Make sure everything is secure
8.d) Take out your new PCB and connect the connector to the motherboard before, placing it on the shielding
https://www.dropbox.com/s/mn97igyuir7o9q6/IMG_20140414_153154.jpg
Make sure everything is secure
Old Method by removing mother board
Procedure:
Follow the steps from the guide here up to Figure 3.4
8.a) After removing the motherboard, remove the following connector
https://www.dropbox.com/s/bsgwmyf6t1djpdb/IMG_20140414_152518.jpg
8.b) Now just pry off the PCB from the motherboard, be weary of the adhesive
https://www.dropbox.com/s/6ysyid9eu2v5jjw/IMG_20140414_152536.jpg
8.c) Get out your new PCB
https://www.dropbox.com/s/6130c74hcxd413x/IMG_20140414_152619.jpg
8.d) Remove the shielding from the back of the original PCB, be careful of the glue to not damage any components
https://www.dropbox.com/s/nfpuwzf3om1ib3s/IMG_20140414_152657.jpg
https://www.dropbox.com/s/73sbx0k32f4x5x4/IMG_20140414_152731.jpg
8.e) Now, put the shielding back onto the motherboard, it should fit into place nicely
https://www.dropbox.com/s/li966nnqujajgog/IMG_20140414_153037.jpg
8.f) Take out your new PCB and connect the connector to the motherboard before, placing it on the shielding
https://www.dropbox.com/s/mn97igyuir7o9q6/IMG_20140414_153154.jpg
Make sure everything is secure
8.g) Slide the motherboard back into place inside the frame
(Make sure not to damage any connectors by safely getting them out of the way BEFORE putting in your motherboard)
https://www.dropbox.com/s/ojvh1vftm6s3qza/IMG_20140414_153415.jpg
https://www.dropbox.com/s/f3k5f1c7qelaq74/IMG_20140414_153420.jpg
9) Reconnect all of the connectors you previously disconnected EXCEPT the volume and power
https://www.dropbox.com/s/v0oyeoaswkd0gb9/IMG_20140414_153602.jpg
10) Now carefully slide in the power and volume buttons into their correct spots
(I used the flathead the push the rockers out of the way to slide in the buttons)
https://www.dropbox.com/s/l94dfverf2ziwl7/IMG_20140414_153832.jpg
Now test the feel of the buttons before putting the Screw back in. (You should hear the tactile feedback)
11) Screw in the screw you removed to get the motherboard out
https://www.dropbox.com/s/3dw6lf5rtqsslut/IMG_20140414_153856.jpg
12) Put the cover back on (do NOT put the screws back in yet) and see if the all the sides close properly
https://www.dropbox.com/s/e4sc0thp8ioi1dn/IMG_20140414_153954.jpg
https://www.dropbox.com/s/wyob0xuxaqkp8ve/IMG_20140414_154002.jpg
https://www.dropbox.com/s/7x46humbisb5lm7/IMG_20140414_154010.jpg
13) Well crap, i have a bump
https://www.dropbox.com/s/3h6mejmug79o8ar/IMG_20140414_154015.jpg
https://www.dropbox.com/s/69w769ubiz03fpk/IMG_20140414_154131.jpg
Time to backtrack and see what is not seated properly
14) After all that is done and is properly fitted, Put in your sim car, micro sd, and battery
(Do NOT put in the screws yet)
https://www.dropbox.com/s/it26v6h7763flzs/IMG_20140414_154143.jpg
15) Now power on and see if it works
https://www.dropbox.com/s/fumzxsuewnqqgn4/IMG_20140414_154158.jpg
(Mine did, I was so happy I could cry!)
16) After it power on, test all your buttons
17)Test Cases:
Press power button once to see if the screen turns off
Press the power button to see if the Screen wakes up
Press the volume up to see if the volume increases
Press the volume down to see if the volume decreases
Check your sim connectivity, should have bars
Check your micro sd card by going to Setting>Storage>SD Card
Check your cameras
check your sound
If something does not work, backtrack and check all of your connections.
If your power or volume buttons don't work, check the PCB connection. If it still doesn't work, you might have received a defective PCB like I did (My volume buttons didn't work). Contact your seller and ask for a replacement for your defective item (I got mine for free and now everything works).
18) If everything works, NOW screw in your remaining screws and close her up and enjoy your day!
You can download these pictures from here
https://www.dropbox.com/sh/8kdrxz28aku1x9x/tMsO_WAAuV
Don't forget to hit thanks!
vibration motor?
hi i have been following your instructions and everything has been going very smoothly. however, i cant figure out how you take out the vibration motor from the old pcb and put it into the new one. do you simply yank it out? i dont want to break anything, thanks!
bobbidik said:
hi i have been following your instructions and everything has been going very smoothly. however, i cant figure out how you take out the vibration motor from the old pcb and put it into the new one. do you simply yank it out? i dont want to break anything, thanks!
Click to expand...
Click to collapse
No do not yank it, the wires are sensitive, I used a soldering iron and heated the contacts up enough to the point where the wires were able to be pulled out. Then I soldered it to my new one. (Remember which wire goes to which contact)
don't forget to hit thanks!
abhi08638 said:
No do not yank it, the wires are sensitive, I used a soldering iron and heated the contacts up enough to the point where the wires were able to be pulled out. Then I soldered it to my new one. (Remember which wire goes to which contact)
don't forget to hit thanks!
Click to expand...
Click to collapse
aww i dont know how to solder nor do i have a soldering kit. oh well, i guess i can live without the vibrate function. thanks anyways!
bobbidik said:
aww i dont know how to solder nor do i have a soldering kit. oh well, i guess i can live without the vibrate function. thanks anyways!
Click to expand...
Click to collapse
Its honestly really easy and a good skill to learn, but there are PCBs with the motor already attached on eBay if you ever need it.
don't forget to hit thanks!
Awesome walkthrough.
I might use it one of these days as my power button is pretty much gone.
Thank you. I'm having weird SIM card reading issues. Flash the same ROM twice, and once it will detect the SIM, the other time it won't.
sketchman16 said:
Thank you. I'm having weird SIM card reading issues. Flash the same ROM twice, and once it will detect the SIM, the other time it won't.
Click to expand...
Click to collapse
That doesn't mean anything is broken.
Try flashing a stock ROM and if it works then your sim tray is still working
sent from my amazingly awesome OnePlus One
Don't forget to hit thanks!
So if I flash SlimKat 8.9 which I know the SIM card would read on before, and now it doesn't that doesn't mean it's a hardware thing?
Also, no custom ROM will now read the SIM. I've tried probably 5 since it started not reading. I'll try the stock ROM before I tear into it, I guess, but it seemed logical to me. IDK.
Radio is extremely crappy on this device. Custom roms don't implement all stock radio features so there can be (even randomly) broken things.
Hmm. Well, I tried to go back to stock. It just won't. Even got to a point where the LG update tool would flash in and out of being connected to the phone, and it would never settle on one or the other, so it can't do anything. Flash tool also reports no connection to the phone no matter what I do. I'm just about sick of this thing.
sketchman16 said:
Hmm. Well, I tried to go back to stock. It just won't. Even got to a point where the LG update tool would flash in and out of being connected to the phone, and it would never settle on one or the other, so it can't do anything. Flash tool also reports no connection to the phone no matter what I do. I'm just about sick of this thing.
Click to expand...
Click to collapse
If your recovery is still available, then just flash one of the stock 4.1.2 ROMs from the android development section
sent from my amazingly awesome OnePlus One
Don't forget to hit thanks!
I don't suppose....
sketchman16 said:
Thank you. I'm having weird SIM card reading issues. Flash the same ROM twice, and once it will detect the SIM, the other time it won't.
Click to expand...
Click to collapse
Probably a silly question but have you tried a different SIM card in the reader to see if it could be the SIM card itself that is a problem?
---------- Post added at 07:35 PM ---------- Previous post was at 07:27 PM ----------
abhi08638 said:
Its honestly really easy and a good skill to learn, but there are PCBs with the motor already attached on eBay if you ever need it.
don't forget to hit thanks!
Click to expand...
Click to collapse
I agree that soldering is indeed a useful skill but I am not sure that a relatively expensive (and I am sure in everyone's eyes, precious) phone is the best place to start practicing; heat damage from a soldering iron can do irreversible damage to sensitive components as well as the copper tracks on the PCB.
Also, I may be a good idea to edit the guide a little to mention the possibility of needing to desolder/solder if the appropriate parts require it?
Yes, tried multiple SIM cards. None work on a custom ROM now. My first flash with SlimKat 8.9, was golden in every way but the camera. Then nothing but trouble with everything else. Even the "stable" CM 10 wasn't stable for me. I just managed to get a pure LG 20d ROM installed, and everything works fine. Battery life is even great. I started flashing custom ROMs to get a better device, but now with a rooted, Xposed, and stable stock ROM, I kind of wonder if it's worth bothering. It would be nice to have KK, but I don't really miss it TBH. I still have root, I still have "most" of what I liked about KK, and there are no more bugs.
Same with my original Nexus 7. Both had been flashed to KK of one sort or another (MANY times before I gave up), and both developed issues from it no matter how I did it. Went back to stock JB on both devices, and everything is fine.
If I flash any more custom ROMs I'm def going to keep a solid JB backup ready to get a stable device back if need be, and so far need be indeed.
Hello,
My LG Phone on KK stopped reading my SIMs a month or so back. I tried different SIMS, but still wont work. I flashed KK again and then later Lollipop AOSP, but still wont work. I thought maybe the SIM Reader was faulty, so ordered a new one. But even after changing, same problem. Don't know what the issue is. Can anyone suggest any further solutions / ideas ? Thanks.
....... duplicate message removed.....
abhi08638 said:
Hello, Today I will show you how to replace a problematic sim/microsd/volume/power. The reason why they can be fixed together is because they are all on the same PCB that we will be replacing.
.....
Click to expand...
Click to collapse
If I want to repair only power only button that has became defective and doesn't respond well I have to do all these steps?? OMG
Is this the right component to purchase to fix power switch? (see attachment)
So here's my situation
While crawling across a rapids I slipped, dipped my phone in the river, and thought all was lost.
I pulled the case and back shell off immediately and it seemed all was well once I dried the G2 with rice for 12 hours. BUT, the sim card no longer would read. After getting back home from my trip I pulled the entire phone apart and discovered the reader looked a bit rough and the slot was probably shot from the water hitting it. SIM card works fine in my S3 mind you.
So where I am at is I have a new SIM reader on its way here to install in a day or so which I THINK should solve the issue. Im curious if anyone else has installed this component before?. Appears to be 6 solder points that hold it in and thats about it. Hell of a thing that the entire phone works flawlessly but the SIM reader shat itself. Never seen anything like it.
Any and all input or ideas are welcome.
Cheers
Mrdobin said:
So here's my situation
While crawling across a rapids I slipped, dipped my phone in the river, and thought all was lost.
I pulled the case and back shell off immediately and it seemed all was well once I dried the G2 with rice for 12 hours. BUT, the sim card no longer would read. After getting back home from my trip I pulled the entire phone apart and discovered the reader looked a bit rough and the slot was probably shot from the water hitting it. SIM card works fine in my S3 mind you.
So where I am at is I have a new SIM reader on its way here to install in a day or so which I THINK should solve the issue. Im curious if anyone else has installed this component before?. Appears to be 6 solder points that hold it in and thats about it. Hell of a thing that the entire phone works flawlessly but the SIM reader shat itself. Never seen anything like it.
Any and all input or ideas are welcome.
Cheers
Click to expand...
Click to collapse
Did you end up installing it?
My sim reader always gave out and I'm thinking of ordering the part but haven't been able to find a tutorial for the replacement.
I too would like to know the result...
Conclusion
rustypie said:
I too would like to know the result...
Click to expand...
Click to collapse
I did end up installing the tray. However, as I removed the contacts that were placed on the board itself and so when I soldered in the new tray there was two points which would not adhere. I ended up replacing the whole board in order to remedy things.
But, most importantly I confirm the board install isnt too hard and will work if you just make sure to properly remove the old tray and dont just pry it off. The prying will rip the contacts from the board and then the solder wont hold.
hey everyone
the last time I fixed the "active cmdline overflow" problem the phone started perfectly without the need to reinstall another RUU
The problem is that it doesn't read any SIM card which gives me always an error " No sim card detected", I'm not sure if this can be a software issue or just hardware one... but I'm sure there is a way to solve it!
Help please ?
Remove them sim and gently insert it applying a little pressure towards the bottom so its angled downward until it goes in. Once in dont apply any more pressure. Try different angles until it works. Might have a faulty slot.
xsodia said:
hey everyone
the last time I fixed the "active cmdline overflow" problem the phone started perfectly without the need to reinstall another RUU
The problem is that it doesn't read any SIM card which gives me always an error " No sim card detected", I'm not sure if this can be a software issue or just hardware one... but I'm sure there is a way to solve it!
Help please ?
Click to expand...
Click to collapse
Thanks but it doesn't fix it :/
I used to have this error pop-up every once in a while. The permanent solution, I glued some paper on the back of the sim card such as the sim appears a bit thicker.
Sent from my HTC One
The problem still permanent :/
It will be one of:
Hardware - Sim socket, ribbon connector top board, connector plug top board, ribbon connector motherboard.
Software/firmware - Have you still got an IMEI?
Have you had the back off the phone for some reason?
It is a big job to replace the SIM socket, it is in between the screen and the phone chassis with a ribbon cable to the top board and another cable from the top board to the motherboard. (Screen needs removal for this job)