Hacktivating iPhone most probably results in non-working push notifications. Many fixes are available but none of them worked properly for everyone. Finally, a working fix is here that allows you to enjoy push notifications on hacktivated iPhone.

PushFix 2.0 fixes push notifications on iPhone 2G, 3G and 3GS. Previously, the fixes were not working because they share the same certificate with many people (who apply the fix). And to make push notifications work properly, each device needs a unique 1024 bit certificate (that doesn’t contain any information about the phone).

To get PushFix 2.0.

You need to go to the purchase page and enter your IMEI number (that you can get by dialing *#06#). Buy it for $5.99

Install the PushFix 2.0 package from Cydia by adding the cydia.pushfix.info repository.

Remember: Do not install push notifications toggle for sbsettings or else not only push notifications will stop working but also you have to restore your phone to make them work again.

[Via ithinkdiff] and thanks to Taimur