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Perdon, los pasos son estos:
Copy the Recovery Image Package to the Device
For the recovery-image method only, after you've successfully updated the radio firmware, the next (and final) step is using the adb tool to copy the recovery image package to the device SD card. (If you are using the fastboot method, you do not need to copy a recovery image to the device - see Flash the System Image Package to the Device instead.)
To copy the recovery image to the device SD card, follow these steps:
Ensure that the SD card containing the updated radio image is inserted in the device
Boot the device normally
Connect the device to your development machine over USB.
At a command line, ensure that adb recognizes your device by issuing this command:
$ adb devices
You should see your device in the console output generated by the command
Use the adb sync command to copy the contents of the radio image package to the update.zip archive on the device's SD card:
$ adb push <recovery-image-package>.zip /sdcard/update.zip
The command prints the number of bytes copied and the elapsed time, then completes. However, note that the files are still being copied in the background, so wait a minute or two before continuing. If you continue too soon and terminate the operation before it is complete, you will get a "bad update.zip" error later, when you try to install the update.
To ensure that the entire recovery image package is copied before you continue, use this command:
$ adb shell sync
When sync returns, all of the data has been copied to the device.
Reboot the device into recovery mode by holding down the HOME key during reboot. When the device enters recovery mode, it displays a "!" icon.
Press the HOME+END key combination to display the recovery console.
Next, use the trackball to select the "apply sdcard:update.zip" option and press the trackball to begin the installation. An "Install from sdcard" status message is displayed — when the progress bar completes, the installation is finished. After writing the radio image, the device shows an "updating firmware" icon for a few seconds and then automatically reboots in normal mode.
After the device reboots normally, the operation is complete.
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