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Hi All, Apologies for a question that is no doubt asked here pretty frequently… Im about to replace the Hard Drive, RAM and Battery on a pretty knackered Macbook Pro 2009 - this is my first time doing this and I’m not much of a tech wiz - I have a couple of questions… Other than the guides on here (which I plan to follow) - can anyone offer any further advice - i’m thinking mostly about what happens once everything is (hopefully) successfully replaced and I boot up for the first time… is there a specific page for that that I have missed in my searches?With regards to the battery - I know I have to charge fully for as long as possible, then unplug and use etc as per the instructions here however I’m anxious about doing this with all the new hardware etc to install etc - Is it preferable to perhaps try and install the new hardware first and then go about replacing the battery or is it ok to do it all at once? I’m reluctant to take the back cover off more than I have too! Again, apologies if this is total beginners stuff! Many thanks in advance for any replies

It’s best to do one change at a time. As to which to do first of the three you talked about. I would do the battery, then RAM and lastly the drive. Your drive changeout is the more complex! First, you’ll want to also replace the HD SATA cable as these cables tend to fail as you move them about. You also want to fortify the insulation a bit by placing a strip of electricians tape under neath it protecting it from the rough surface of the uppercase. You also want to be careful in your bending of the corner folds, you don’t want to crease them! You want a smooth arc. I use a BIC pen ink straw to help me form the needed radius, it doesn’t take much. The last issue on the drives is the I/O speed of your system is only SATA II (3.0 Gb/s) so you do need to be careful the drive you use is able to support this slower I/O speed. Many of the drives available today have dropped support for the slower SATA I & II speeds. As an example a Samsung 860 EVO SSD offers the ability to work across all three SATA I/O speeds as you can see in the ‘Interface’ line. Make sure the drives spec sheet clearly states 3.0 Gb/s is supported. References: Your Hard Drive Cable Is A Ticking Time BombMacBook Pro 13" Unibody (Mid 2009-Mid 2010) Hard Drive Cable