My Iphone was previously jailbroken with Spirit and I unlocked it successfully yesterday with UltrasnOw. I had the same issue others have mentioned where Cydia showed an Ultrasn0w update outstanding which I ignored. I have been using T-Mobile since the Unlock. Today i saw that there were three updates outstanding on Cydia 1. was the Ultrasn0w 2. was mobilesubstrate and 3. was mobile terminal. I decided to do the update for mobilesubstrate and mobile terminal one at a time. The mobilesubstrate update showed completed but left the phone spinning out of control where i could not recover.
The only way I could get out of it was to put it in DFU mode and restore. Fortunately i have my SHSH blobs saved and was able to restore to 3.1.3 and 5.12.1 which I am now in the process of JB and unlocking again. I will be in no hurry to take any more updates from Cydia.
Put this out there so others may be careful if they see mobile substrate updates outstanding.
The only way I could get out of it was to put it in DFU mode and restore. Fortunately i have my SHSH blobs saved and was able to restore to 3.1.3 and 5.12.1 which I am now in the process of JB and unlocking again. I will be in no hurry to take any more updates from Cydia.
Put this out there so others may be careful if they see mobile substrate updates outstanding.