what im doing wrong?

i follow these steps and it keep saying backup failed when i push backup recovery image button this is because of what.......


I. Let’s Get Started

1. On your phone (G1 or MyTouch), goto Settings, Applications, and make sure Unknown source is checked ON.

2. On your phone, goto Settings, SD card and phone storage, and click Unmount SD card.

3. Then click Format SD card (it should automatically remount after this).

4. Plug the phone into the compuer via USB, then pull down the notification bar and click on the SD card notification. Then click mount.

5. Download this APK and the recovery image and save it to your computer:

FlashRec.apk (Updated: 09/26/09)

Amon Ra’s Recovery Image (Updated 11/18/2009)

6. Once they are saved to your computer, copy them both to your SD card (do NOT put them inside any folders on the SD card, just put them on the SD card itself).

7. Unplug the phone from the computer once they are downloaded to the SD card.

8. Goto the Market and download Linda File Manager or any file manager program if you do not already have one.

9. Open the file manager and goto SDCard and then find the FlashRec apk file and click it. If asked tell it to use Package Installer to open it. It should automatically install the apk.

10. Open the FlashRec program and click on Backup Recovery Image and wait for it to finish.