Custom Firmware With Baseband 6.15 -

For the : Suicidal. You were gambling a functional phone for a 70% chance of a brick.

The warning text was stark: “This is irreversible for iPhone 3G. For iPhone 3GS, downgrading is impossible.” Custom Firmware With Baseband 6.15

Between 2009 and 2011, if you owned a locked iPhone 3G or 3GS on AT&T or O2, you faced a wall: software unlocks were dead. Apple had patched every vulnerability. The only way to use a prepaid SIM card on vacation was to install a custom firmware that did the unthinkable—update the baseband to an iPad’s firmware. For the : Suicidal