Originally posted by: gsaldivar
Unfortunately, I believe the Z1 model requires a partial chassis disassembly in order to access the HD. This involves removing retainer screws on the underside to release the keyboard, then lifting the entire top bezel up to reveal the HD bay beneath the palmrest.
I wasn't able to locate any free information on the web regarding the procedure, and can only recommend that you contact Sony for service, as this particular model
may be damaged by removing the wrong screws from the underside.
If you'd like to try at your own risk, I put a copy of the Z Series user manual online for you. You will find a partial illustration of the above procedure under the section that guides you through a memory upgrade.
http://intermvp.com/anand/Z1_H_UK.pdf
Good luck! :thumbsup: