Optimus IV - removing the wireless card

ubuysa

The BSOD Doctor
PCS have agreed to replace the Intel Centrino Wireless-N 135 card in my Optimus IV. I've had to send the old one back before they'll send me the replacement but that's ok because I have an external wifi adapter I can use in the meantime. I asked them for some instructions on getting the old card out and they sent me the service manual for the Optimus IV which describes in good detail how to remove the keyboard - the wifi card is underneath.

I took some pictures after I'd got the keyboard out and I thought other Optimus IV owners might find the pictures and a description of my experience useful?

The service manual tells you to first remove the battery and then remove the main cover on the underside of the laptop. This is pretty easy, it's held on by three cross-head screws, I used a small screwdriver from a cheap watchmaker's screwdriver set to get them out. They weren't terribly tight but you'll want to be careful because if you damage the heads you'll never get them out. Once the screws are completely out the main cover can be slid forward and then lifted off. Underneath it looks like this:

al3mdw.jpg


To remove the keyboard the manual tells you to first remove the speaker cover. This is the strip with holes in it above the keyboard. You are supposed to pop the left edge of the speaker cover by pushing with a small screwdriver somewhere to the right of the fan. I found it extremely hard to see where to press and I was of course scared of doing any damage. Eventually I managed to find the right spot and to help others I took a picture of where you need to press with the speaker cover off. In the picture below the white area just above the top copper-coloured cone-shaped thing is the light shining through where the speaker cover would fit:


epq5va.jpg



The speaker cover is held down by a series of plastic lugs that clip into the chassis, once I'd popped the left hand corner I slid a plastic credit card under the edge all the way round to pop the remaining lugs. The speaker cover then simply lifted off.

Underneath the speaker cover you can clearly see five cross-head screws that hold the keyboard down. You need to be careful not to drop any of these into the innards of the chassis, getting them out again might be tricky. Once all the screws are out the keyboard can be lifted from the middle of the edge where the screws are and slid forward a little, the other edge is located by some plastic tabs that fit into the chassis. The ribbon cable is not very long and you need to be careful not to damage it, the keyboard can be rotated towards you 180deg and laid down flat and upside down on top of the touchpad area. The picture below shows the keyboard in this position (so you're looking at the back of it) and you can clearly see what's under the keyboard:


2uzrvh0.jpg



You can see the third RAM card in it's slot and the round BIOS battery (which will eventually need replacing). The wireless card was in the space at top right where the loose wires are. The picture below shows a close up of the card with the cables popped off (they are just press fits) before I took it out (the red and white cloth is a tea-towel I used to cover the screen - just in case). The wireless card is held in place by the single cross-head screw you can see in the bottom left corner:


2r5rc0p.jpg



Because I had to send the old card back I slid the rubber sleeves you can see on the cables to completely cover the plugs so that they didn't touch anything after it was reassembled.

Reassembly is the reverse (really!). I slid the tabs on the keyboard back into the chassis, making sure that they all went in, then replaced the five screws (being careful again not to drop any into the depths of the chassis). The speaker cover simply clicked back into place with a little pressure all round.

It's a pretty straightforward job but I'm posting this in case it helps anyone else who has to get under the keyboard of an Optimus IV.
 

Pagey

Bright Spark
Absolutely brilliant dude! I've been a little curious about that myself, (might see if I can replace those speakers.)
 

saccha

Member
Slightly off-topic so apologies; now that you've been able to see where the keyboard sits and underneath it, what do you reckon the chances are (with a bit of creative improvisation) of fitting some kind of backlit keyboard system? Purely hypothetically of course. (Warranty etc etc)
 

ubuysa

The BSOD Doctor
Slightly off-topic so apologies; now that you've been able to see where the keyboard sits and underneath it, what do you reckon the chances are (with a bit of creative improvisation) of fitting some kind of backlit keyboard system? Purely hypothetically of course. (Warranty etc etc)

I think the keyboard sits pretty near flush against the chassis underneath so I doubt there's much room for a backlight system. Also the backing plate on the keyboard would, I think, block out any lights you could fit in there. Sorry about that. :)
 

keynes

Multiverse Poster
The picture below shows a close up of the card with the cables popped off (they are just press fits) before I took it out (the red and white cloth is a tea-towel I used to cover the screen - just in case). The wireless card is held in place by the single cross-head screw you can see in the bottom left corner:
how difficult was to disconnect the cables from the wireless card? any issues taking it out of the laptop? tips :) ?
 

ubuysa

The BSOD Doctor
how difficult was to disconnect the cables from the wireless card? any issues taking it out of the laptop? tips :) ?

The cables pop off quite easily, I used a plastic screwdriver to help lever them up because they are a good fit, you need a fairly good pull - on the plug, not the cable of course. There is one screw that holds the card down and then it simply lifts up out of the edge connector. On reassembly I was very careful to make sure the plugs were aligned with the socket properly before pressing them home, again it's a fairly firm push until you hear them click.

It's not a difficult job at all and there were no other issues. As I've said elsewhere, getting the plastic cover over the speakers off is the tricky part. Popping the corner from below as I've shown here (which is how the service manual describes it) is very difficult because you can't really see what you're doing. When I took it apart the second time to put the replacement card in I used a small plastic screwdriver to lever the plastic strip up at one corner from the front until I could slide a credit card into the gap. Then you just carefully slide the credit card along popping the lugs as you go. It's a bit scary at first but I've done it twice more since then and I've not broken any of the plastic lugs (yet)...
 

keynes

Multiverse Poster
I need to do it on a tablet, didn't get any instruction manuals with it so that's why I am a bit concerned.
 

ubuysa

The BSOD Doctor
I need to do it on a tablet, didn't get any instruction manuals with it so that's why I am a bit concerned.

On a tablet the wifi "card" is likely to be part of the mainboard? I've never had a tablet apart but I'd guess everything is on one board.....?
 

keynes

Multiverse Poster
On a tablet the wifi "card" is likely to be part of the mainboard? I've never had a tablet apart but I'd guess everything is on one board.....?

I hope so, don't want to break it since it is less than a week old. Pretty disappointed with the intel 135n. Nothing but trouble so far.
 

TJStitch

New member
This was a really helpful guide and I was making great progress. But one of the screws holding the keyboard down just won't budge the other four unscrewed easily. I'm worried it is cross threaded and that if I keep trying I'll destroy the screw for good. As PC specialist put it together if this is the case with the screw would they do it for free?

Anyway good guide :)
 

ubuysa

The BSOD Doctor
This was a really helpful guide and I was making great progress. But one of the screws holding the keyboard down just won't budge the other four unscrewed easily. I'm worried it is cross threaded and that if I keep trying I'll destroy the screw for good. As PC specialist put it together if this is the case with the screw would they do it for free?

Anyway good guide :)


Firstly, welcome to the forums. :)

I'd suggest you give PCS a call and ask their advice, they may well have come across this problem before.

Thanks for your kind words on the guide. :)
 
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