Error (-1) baseband repair?
After replacing a screen, I've got the dreaded error (-1) on my iPad 3 4G. The update logs also confirm that it fails at the baseband flash every time I try to restore (including from DFU mode with a clean iTunes install, antivirus off, original cable, with automatic or previously-downloaded ipsw). It was never jailbroken and isn't locked.
I really don't care if this iPad is ever on 4G again, I just want it to work on wifi.
- I tried to downgrade the baseband firmware with redsn0w on the off chance that this isn't a physical chip problem but it says it doesn't work with iPad 3s. Is there any other software I should try?
- The next thing I plan to try is to reflow the baseband chip with a heat gun. Should I take the emi shielding off first? Will it matter if I can't get it back on? Any pointers for removing the shielding without damaging anything else?
- Has anyone had success removing resistor 1204 to get a wifi-only iPad? I'm skeptical of the success stories I've seen for this one, but if it works I'd be willing to try as a last resort.