As I managed to get a little into the baseband by dumping it from the X-Gold 618 Chip (iPhone 4's Baseband Chip produced by Infineon), I found a slight solution to overcome Apple's fixes by replacing the activation ticket fields and by caching the ticket with networkd's files.
The fix may apply to devices ONLY bypassed with my video for bypass, provided here in the description.
WARNING! If used with other bypass methods, may brick the baseband (can't be restored via iTunes!).
Please follow the tutorial completely, don't skip parts, read the full description and don't get lazy because the risks are big. Breaking the Baseband is dangerous as it is not fixable.
You will be required to restore your device and bypass again if you had a SIM Card inserted in the phone.
By the time you restore, take off any sim card.
Warning! This is not a carrier unlock method, if your phone is locked to Verizon for example, it will still work only on Verizon, so, if you are here for carrier unlocking a device purchased on contract from a carrier, then you are not in the good place.
All files are provided in the description.
This method MAY OR MAY NOT work for all GSM iPhone 4 models around the world. Was successfully tested on: LycaMobile, Tim, Wind Italy, 3 Italy, Verizon, Orange and AT and T. This doesn't mean that it only works on these carriers, but on these ones, it works with no issue.
Please follow the bypass tutorial correctly, and make sure there is no SIM Card inserted by the time you bypass.
Files I created:
! Warning: I use comprehensive video and file detection tools to detect my files being reuploaded online. I will ask YouTube for termination of any channel copying the files anywhere. You are only authorized to use them in your personal non-commercial purpose. Selling these files or reuploading them is considered a breaking in Copyright Laws and is dealt with in accordance with current Copyright laws.
Channels copying the videos from my channel will get removed for copyright strikes. No exceptions.
MEGA Mirror: https://mega.nz/#!MtcnyI5B!_xZWlUHyfiu4P3xZfFZVXXoMLwxgphXD0V0oArS-gs0
Plist Editor: http://www.icopybot.com/plist-editor.htm
WinSCP, SSH JAR and F.C.E. 365 are included in the Bypass video description.
~! ONLY USE THIS VIDEO FOR BYPASS !~
USE THIS VIDEO BUT DO NOT JAILBREAK!!! You will lose access to folders in WinSCP of you Jailbreak.
A fix for Push Notifications:
Thanks for watching.