Downgrade the baseband easy easy by Cydia

3G Baseband Downgrade as the name says, the low baseband of iPhone with 3G bootloader 5.8), so you can use to make the release Yellowsn0w, simpler than that impossible.

. Among the Cydia installer
. Look for the file "3G Baseband Downgrade" and download
. Open the app, read the instructions, if you are in agreement with what is written, then click "Go" to the downgrade of its baseband
. Restart your iPhone and ready.
. Now use the Yellowsn0w and enjoy


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