To install Froyo use the
update.zip file and follow the instructions below. This process will not wipe the data from your phone.
When I did this I kept getting force close errors, so after installation I did a factory reset. On my wife's phone I copied the contents of her SD card to the PC and had only the udpate.zip file on the SD card and followed the instructions below. No force close issues for her. Then I copied back the files from the SD card.
- Download update.zip
- Move the file to your SD card on the Epic 4G
- Plug in device
- Select ?Mass Storage?
- Drag the ?update.zip? into root of your SD card
- Boot your device into ?Recovery Mode?
- Pull out battery
- Put in battery
- Push and hold the combination of the Volume Down Button, the Camera Button, and the Power Button
- Select ?apply sdcard:update.zip? from the ?Recovery Mode?
- The ?Home? soft key is the select key.
- Congratulations! You now have ?EB13? Android 2.2.1 on your Samsung Epic 4G by Sprint!