I opened mine up yesterday to upgrade the screen to something a little nicer. The old screen was getting hard to see and was starting to fade a little around the edges. The AK is very well designed internally and very easy to open up. You have to be careful lifting the base out as there are ribbon cables connecting between components.
De-soldering the old screen is a bit involved and time consuming, all I could focus on was not damaging the existing PCB pads with the de-soldering process. With a little careful help from my screw driver, the old LCD came out eventually and I was very relieved when it did. For someone with experience this is not a difficult thing to do, definitely not something to attempt by the in-experienced.
PS: I am a new user here so could only load up 1 photo, I do have many more pics of the inside of the AK if anyone is interested.