HOW-TO: Avoid FACETIME iPhone 4 Waiting for Activation Error

It was earlier reported that most owners who have problem with "Waiting Activation Error" either because the devices are new (as compared to others who bought much earlier) or they have updated the "Carrier" during the Restore or Upgrade firmware process.

I suspected its due to "Carrier Update" because I encountered this message earlier today when I attempted to upgrade my Firmware to 4.2.1 but I chose to ignore. However, it proved to be wise because when I tested Facetime - it works!

I heard some iphone owners (Celcom customers) who chose to upgrade their "Carrier" is unable to get their Facetime feature back.

Untethered Jailbreak For iOS 4.2.1 for iPhone 4 and ATV2 RELATED Articles

HOW TO: JAILBREAK IOS 4.2.1 APPLE TV 2 USING GREENPOIS0N

HOW TO: DOWNLOAD IOS DEVICES IPSW

HOW TO: EXIT FROM RECOVERY MODE

HOW TO: SOLVE RANDOM PROBLEMS OF GREENPOIS0N JAILBREAK

HOW TO: DOWNLOAD GREENPOIS0N RC5

HOW TO: UNTETHER IOS 4.2.1 JAILBREAK!

HOW TO: UNTETHERED JAILBREAK USING GREENPOIS0N RC5 FOR IOS 4.2.1

HOW TO: JAILBREAK APPLE TV 2 (ATV2) IOS 4.2.1

Jailbreak Apple TV 2 Using GreenPois0n RC5-2

Since the Release of GreenPois0n RC5-2 being release yesterday, Apple TV 2 owners have been asking whether this JB solution is able to Untethered Jailbreak their ATV2 devices?

It was reported HERE that the RC5-2 is not able to do that.

LATEST UPDATE (Feb. 13, 2011):

Chronic Dev Team just release the latest RC6 that supports Jailbreak Apple TV 2.

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GreenPois0n Jailbreak - Error Messages

I tried to Jailbreak my iPad 4.2.1 using the method below but found some errors on my iPad screen..
Anyone have this same problem?

unsuccessful in jailbreaking using Greenpois0n due to the following errors that present on the iPhone. 
Unable to find gBdevList
Unable to find fs_mount
Unable to find fs_unmount
Unable to find fs_load_file


Updated:


Somehow, some people are able to Jailbreak it.

HOW TO: Untether iOS 4.2.1 Jailbreak!

Follow the below guide for step by step instructions to convert your tethered jailbreak to untethered jailbreak on iOS 4.2.1:

STEP 1: Your device must be on iOS 4.2.1, then download GreenPois0n RC5 for Mac OS X from here. [Mirror 1, Mirror 2]

STEP 2: Launch GreenPois0n RC5 then connect your iPhone into your Mac via USB and click on Jailbreak as shown below:

STEP 3: Follow the instructions shown on the screen to enter DFU mode:

STEP 4: Once jailbroken, you'll get Cydia installed on your iOS device and you won't need to use Just tethered boot right now option anymore.

Source: Covering Web