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MacBook Pro Users Beware...
on June 13, 2012
FOR MACBOOK PRO USERS: If you have a 2011 MacBook Pro, you would be better off choosing a Samsung or Intel SSD. I upgraded my MacBook to the 256gb version of the M4 SSD two months ago. Since then, I have been experiencing periodic freezes and hangs (the infamous "beach ball") on my MacBook, sometimes as many as a dozen a day. My MacBook will become completely locked and stay that way for as long as a minute or two when doing very simple things, like looking for a file in Finder, etc. My SSD arrived with firmware version 0309 installed. After getting fed up with the hangs, I went searching for a solution to what appears to be a common problem with MacBooks (just check out Crucial's M4 forums). I found that Crucial/Micron had released an updated version of the firmware, version 000f. So I installed the new firmware and bad became significantly worse. The new version of the firmware practically turned my MacBook into a brushed aluminum paperweight. It literally took 15 minutes to boot. Firmware 000f = 000FAIL! Shame on Crucial for releasing such a bad update. And shame on me for not reading ALL the entries in the Crucial forums. Other MacBook Pro users have experienced the same problems and reported them to Crucial. THIS IS A KNOWN ISSUE WITH MACBOOK PROS. Fortunately, someone posted a link to the older version of the firmware. So I downgraded my firmware back to 0309 to at least make my MacBook functional. When you spend the money to UPGRADE to an SSD, you expect an upgrade in performance... NOT a rash of problems. Until Crucial/Micron gets this issue resolved, do yourself a favor and buy something else.