Why is Airport receiving only weak signals after HDD replacement?
Big problem - a client asked me to upgrade the hard drive in their iMac 4,1. It's an older one, with just a Core Duo, not a Core2Duo.
After opening the case and replacing the drive successfully, I put it back together. I installed 10.6 on the new drive, bringing back the files, apps and settings from 10.4, which was previous installed, by way of connecting the old drive via USB.
Everything worked like a charm - except this: the machine couldn't see any WiFi networks when I turned on Airport. I know for a fact there are about ten in range of where I was working.
To test this, I enabled the WiFi hotspot on my phone, and placed it close to the machine, and it could see it, and connect. If I took the phone just outside of the room, the signal dropped.
Same with bluetooth - it will connect to the mouse only if the mouse if pretty much pressed up against the screen.
I open it up again, and checked that the WiFi antenna was connected, and it was. On this model, however, there seems to be only one antenna connected to the WiFi adaptor - grey, in the lower position. Another antenna appears to be connected to the bluetooth adaptor.
When I opened it up, I presumed the foil tape between the LCD and its frame needed to come off, so I removed it. Of course, it didn't. There's not much left of it, so it can't go back on.
Would I be right in thinking that this foil (looks aluminium) should be connecting the edge of the screen and it's supporting frame to create an extension for the antennae?
It's all I can think of - I've checked and rechecked, and everything is connected up right.
I've deleted the airport connection in networking and readded it. However, I haven't reset the NVRAM yet - but somehow, I don't think that's going to do anything. It's clearly a signal strength problem.
As a test, a connected some long antennae wires from an old laptop to both terminals on the WiFi adaptor (even though it only had one wire previously connected), and it seemed to work while they were trailing out of the case, and the thing was flat on its back. I tried securing them inside the case, closed it up, and stood it up, but once again - no signal.
I have some foil tape on order. Can anyone help, or confirm that this is the problem?
Stressing out now!