Android App Review: Manage Your Connections Automagically – XDA TV

Material Design is all the buzz in the Android world right now. … more

Official TWRP Recovery Lands on Micromax Canvas Magnus

With the recent release of Android One, Micromax and MediaTek released fully buildable … more

Update Overload: SuperSU Heavily Updated

There are apps and apps out there. Very few can reach the level of popularity required to stay at … more

Lollipop Leak Available for the Sprint Galaxy S5

Since the Android 5.0Lollipop’s official release not too long ago, we’ve seen … more

Welcome to XDA

Search to go directly to your device's forum

Register an account

Unlock full posting privileges

Ask a question

No registration required
Post Reply

LG Optimus 7 Teardown [w/pictures]

OP wm.andrew.wilson

26th November 2010, 10:44 PM   |  #1  
OP Member
Flag Calgary
Thanks Meter: 57
 
47 posts
Join Date:Joined: Aug 2010
More
Hi Guys,

Took the liberty of doing a teardown for all of you.

For those following along at home:
  1. Take off the back plate, remove the battery and the SIM card.
  2. Remove all screws (4 on the bottom, 2 in the middle and 2 at the top. Be careful not to strip them!)
  3. Using a guitar pick or case opening tool, remove the bottom plastic piece of the phone. Start at the top edges where the plastic meets the side.
  4. Using the same tool, remove the top plastic piece of the phone. This is incredibly tricky! There are 4 plastic clips on the back and 4 on the front, it is also held in place by adhesive. It wasn't incredibly hard to get off, but insane to get back on (I broke mine trying to get it back on and glued it into place)
  5. Using the clearance given to you by removing the top and bottom pieces, slide the case tool/guitar pick down the side and pop the phone apart. This sometimes requires quite a bit of force and a bigger guitar pick.
  6. Remove the back plate and see this...(image 16 on attachments, I can't post links yet ) Pop off the ribbon cables indicated at the boxes using the tool. Lift the main board assembly out of the phone.
  7. The main board is two levels and held together by thermal adhesive. Slide a guitar pick in between the two levels to carefully break them apart, taking into note that they are connected via a ribbon cable which needs to be removed once they are unglued from one another. This is the top level with the heat shields removed: (image 5 on attachments). The bottom with the heat shields removed reveals the main board. The front of this board is picture 3, the back is picture 7.
  8. Remove the two black screws at the top and use your tool to unclick all the clips on the two sides of the shield. Ensure to remove the antenna cable before lifting it out. When removed, the shield is in picture 9.
  9. Picture 10, screen assembly
  10. Picture 12 is the two top and bottom caps
  11. Picture 6 is the first plastic piece you remove once you take out the screws and the caps.
Conclusions: The Optimus uses 16 GB soldered on HYNIX NAND for storage, and not a SD slot like many of the other manufacturers opted for. I have no idea what the 3rd "dot" is on the light sensors on the front, but unless it is the smallest camera ever created, I sincerely doubt it is a front facing camera. (top left of picture 9).

Thanks for reading and I hope this helps some of you guys do repairs/make a device purchasing decision! Feel free to ask me any questions.
Attached Thumbnails
Click image for larger version

Name:	200_7203.jpg
Views:	3807
Size:	89.6 KB
ID:	450328   Click image for larger version

Name:	200_7205.jpg
Views:	3063
Size:	79.1 KB
ID:	450330   Click image for larger version

Name:	200_7206.jpg
Views:	2476
Size:	84.9 KB
ID:	450331   Click image for larger version

Name:	200_7207.jpg
Views:	2640
Size:	90.8 KB
ID:	450333   Click image for larger version

Name:	200_7209.jpg
Views:	2189
Size:	85.2 KB
ID:	450334   Click image for larger version

Name:	200_7210.jpg
Views:	2204
Size:	84.1 KB
ID:	450335   Click image for larger version

Name:	200_7212.jpg
Views:	1859
Size:	85.8 KB
ID:	450336   Click image for larger version

Name:	200_7216.jpg
Views:	2367
Size:	90.0 KB
ID:	450337  
The Following 3 Users Say Thank You to wm.andrew.wilson For This Useful Post: [ View ]
26th November 2010, 11:31 PM   |  #2  
kapanak's Avatar
Senior Member
Thanks Meter: 19
 
279 posts
Join Date:Joined: Nov 2010
More
Amazing. And to think I spent the last five hours looking for a teardown (see the button problem thread ). Thank you so much for this. I have one question. Were you able to take off the front keys, specifically, the start key? And does everything work again after putting it together again, if you have done so already?
27th November 2010, 10:27 AM   |  #3  
OP Member
Flag Calgary
Thanks Meter: 57
 
47 posts
Join Date:Joined: Aug 2010
More
So the start key is separate and comes out when disassembling. The buttons appear to be part of the screen unit and come out easily. The phone went back together perfectly, the top plastic piece is impossibly hard to reattach and i broke a couple of tabs off. It basically has to bend back into place, very frustrating.
28th November 2010, 05:17 AM   |  #4  
Junior Member
Thanks Meter: 0
 
11 posts
Join Date:Joined: Nov 2010
Thanks Andrew. Good one. I was able to use your image to share in one of the post the part that was changed when i had a Bluetooth problem.
29th November 2010, 05:18 PM   |  #5  
Member
Thanks Meter: 0
 
30 posts
Join Date:Joined: Jan 2010
More
Thank you, thank you, thank you. We finally know. I'm not sure why I wanted to know so badly, but I just did. I am pleased to hear that LG opted for the all NAND solution and 16GB. Bravo.

I wonder whether MS has some kind of restriction that if you had no SD slot at all it needed to have a least 16GB?
30th November 2010, 08:49 AM   |  #6  
Senior Member
Flag CWB
Thanks Meter: 13
 
190 posts
Join Date:Joined: Jul 2007
great stuff

has anyone worked out what the 3rd dot/hole is for yet?
30th November 2010, 02:04 PM   |  #7  
Junior Member
Thanks Meter: 0
 
11 posts
Join Date:Joined: Nov 2010
what do you mean by 3rd dot / hole? Which image is that?
30th November 2010, 02:15 PM   |  #8  
Senior Member
Flag CWB
Thanks Meter: 13
 
190 posts
Join Date:Joined: Jul 2007
hi gurucanto

sorry i couldn't actually locate it in the pics there...probably just me being dense.
but it's on the faceplate where the other sensors are. there's proximity, light and ?

3 holes
1st December 2010, 03:00 AM   |  #9  
OP Member
Flag Calgary
Thanks Meter: 57
 
47 posts
Join Date:Joined: Aug 2010
More
It is in picture 9, the top left black piece is the ambient light sensors, and there is a 3rd sensor of some kind there. If it is a front facing camera, it is really, really, really small for a camera sensor.
2nd December 2010, 06:53 PM   |  #10  
Junior Member
Thanks Meter: 0
 
1 posts
Join Date:Joined: Dec 2010
Can you post the part number of the Hynix NAND? It would be interesting to compare the specs with an SD card.

Post Reply Subscribe to Thread
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes