Saturday, December 18, 2010

Recovering your Cr-48 to Factory Settings

Update: I'm now taking orders for pre-made Recovery SD Cards. If you're having trouble with these instructions or just don't want the added hassle, order a ready to go recovery drive for just $20 shipped!

Update 2: You may find it even easier to create the recovery drive from your Cr-48.

So you managed to get root on your Cr-48. Congratulations, you're now ready to shoot yourself in the foot and break your free laptop. Fortunately, those wonderful Google guys also made it very simple to reset your Cr-48's to it's Out of Box Experience (OOBE) factory default state. I suggest trying this recovery process before going any further with hack tips on this blog so that you're familiar with the process when you actually need to use it. Google has instructions describing the Cr-48 recovery process using a Mac or Linux computer. To bad you only have Windows huh? No problem, here's how to create the recovery USB drive or SD Card from Windows:
  1. Download Disk Imager for Windows.
  2. Extract the files somewhere. For the purpose of these instructions, we'll assume you extracted to C:\DiskImager
  3. Download the recovery image from Google. Extract it to c:\DiskImager also.
  4. Plug in a USB drive or SD Card that is at least 1gb in size (Google says 4gb but 1gb works just fine for me, thanks for pointing this out Doggydude. Update: some 1gb drives work but some don't, the image is really close to 1gb in size and drive sizes can vary by a few mb. Use a 2gb if you want to be sure it'll fit). Warning! All data on the drive will be wiped! Make sure it has nothing important on it!
  5. Run c:\DiskImager\Win32DiskImager.exe
  6. Under Device, select the drive letter of your USB drive or SD Card. Warning! Make sure you have the right drive. If you choose the wrong drive, you'll wipe out some other disk on your computer!
  7. Now click the folder icon under "Image File" and browse for the Google recovery file you downloaded and extracted. The file will be named .bin, not .img so type *.bin in the "File Name:" text entry area so that *.bin files are listed.
  8. Finally, hit the Write button. The write process will probably take 5-10 minutes depending on the speed of your drive.
  9. Now that you've got your recovery disk, you can continue to step 2 of Google's instructions to perform the actual recovery.