How to upgradding ram toshiba tecra m6

Toshiba Tecra M6 has a standard 1 gb memory (512MB x 2 DDR2 pc 5300), if you want to add extra memory then you have to replace one or both of these ram.
Here I explain the steps:
1. Laptop battery must be removed first
2. Open the cover of the keyboard using a minus screwdriver (just as in the picture below)

 
3. Open the two screws keyboard, then turn backward it will look like the image below

 
4. Open the two screws and remove the protective memory memorynya iron plate cover

 
5. Now you can see two memory slots are already filled each 512MB

 
6. Remove both memory and replace it with a larger capacity
Thanks