You are probably prompted with the Carrier Settings Update. Actually it is safe to click on the update to fix the problem of the carrier setting itself, Anyway for those of you who use GPP Sim to unlock, you also free to update according to the GPP forum :
Q: I installed a new three networks dedicated patch NEW GPP, why will pop-up operators to update?
A: NEW GPP is crack update operators are not shielded carrier updates, update prompt will still pop up, but click update would not suffer carriers blocked, please rest assured.
Make sure you turn off your passcode and Touch ID before you reboot your iDevices After you installed any tweaks from Cydia, because some tweaks might get your iDevices into BOOT LOOP state which is cannot be bypassed by reboot + holding your volume button IF YOU LEFT YOUR PASSCODE AND TOUCH ID ON.
So again for those of you who love to tweak your iPhone with the current jailbreak PP Jailbreak, you should turn off your passcode and Touch ID everytime you reboot your iDevices.
Are you running iOS 8.1.3 and waiting for the jailbreak ?
And you heard that PP Jailbreak can only jailbreak iOS 8.1.2 downward, no THAT AIN'T TRUE !!
Actually Apple seeded the iOS 8.2 Beta 2 with no expiry, means you can running this beta2 forever. And fortunately PP Jailbreak can jailbreak the iOS 8.2 Beta 2.
But currently you cannot download the iOS 8.2 Beta 2 even if you have the developer Apple ID. and here is the link where you can try to download the correspond firmware the Beta 2 for your iDevices :
With a new version of iOS 8.1.3 Apple has patched the exploit which is used by TaiG to jailbreak your iDevices.
For those of you who still want to get your iDevices Jailbroken, you need to stay where you are DO NOT upgrade to the current firmware 8.1.3
However TaiG said there's still be a possibility of jailbreaking iOS 8.1.3 and 8.2, and still in the progress and the tool is expecting to be released in April. So stay calm and be patient for those of you who running 8.1.3
