Information from
http://www.modmyifone.com/forums/showthread.php?t=15041&page=2
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Whats new in 1.1.2
- Baseband firmware is now 04.02.13_G (Was 04.01.13_G in 1.1.1)
- Entering DFU mode is disabled. This was used to downgrade in 1.1.1
- After restoring with 1.1.1 firmware, just when its about to done, iTunes gives off error 1015
- *#307# and prefs:// still works and you can still access Safari
- jailbreakme.com now shows only a blue dot
- When you insert a non-ATT sim card and try to access the phone function, it will automatically crash
- The phone now detects if your using a TurboSIM
- You can receive calls after you upgrade when using TurboSIM but once you answer, you can't hang up as the phone function part of the phone has disappeared
- Independence does not work. When connected, you get the message "Unsupported version of phone firmware installed. Detected version is 1.1.2"
- When connected to iTunes 7.5 ONLY, it will indicate your battery status beside your iPhone icon
- Adding a symbolic link does not work before or after updating
- iToner still works
Downgrade to 1.0.2 works! (from hackintosh user crackn)
1. Downgrade to 1.1.1 in iTunes using the SHIFT and RESTORE method.
2. When "Verifying the Firmware" message comes up, hold the HOME and SLEEP buttons for 10 seconds.
3. Release the SLEEP button and keep holding the HOME button for 10 more seconds.
4. The phone will enter DFU mode and accept a downgrade to 1.0.2
5. Baseband remains 04.02.13_G after downgrade
- Upgrade to 1.1.1 is working even after error 1015 in iTunes
- Jailbreakme.com doesn't work after 1.1.2 -> 1.0.2 -> 1.1.1 process
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We need to wait more... but seems not too far.