When you purchase an Apple iPhone you must validate crucial information related to your phone, there exist quite a few, free online iPhone IMEI checker services allowing users to check there Apple phone's warranty, registration, activation, phone support and contract status as shown below. There also exist free services which allows users to check whether there phones are carrier-locked to At&T Network, USA or not; this comes handy when one wants to get there devices carrier unlocked.

Unlike cryptic and non-informative iTunes Error Codes, jail-breaking utility redsn0w do offer useful information to diagnose possible issues. A common error encountered with redsn0w is "Usb connection problem", but despite the clear message and obvious solution to fix USB connection between the device and computer there could be other reasons for the error.

Sailfish Mobile OS is something many are looking forward as an alternative to current ones, here is a sneak preview video of the OS on a testing device.

Technology is leaping ahead with great pace, here is an interesting video which shows how Samsung's innovative flexible OLED display technology would empower future gadgets; defeating Apple devices in the tech race.

Having the option to boot into an operating-system of your choice in multi-boot environment is an much needed feature. While PC's have BIOS options to change/select the booting order, Apple's Mac computers features an handy "Startup Manager" utility to enable boot selection during computer start, this comes specially handy when using Windows via BootCamp to pick which OS volume to boot.

Within days after releasing bug-fix iOS version 6.1.1, Apple iOS 6.1.2 is now available for download addressing the exchange sync bug for all Apple iOS devices. Team evad3rs followed quickly updating their jail-breaking application evasi0n to version 1.4 fully supporting iOS 6.1.2 update. Direct download links to both Apple iOS 6.1.2 and evasi0n jailbreak utility posted below.

While rumors of an Apple branded smart-watch are circulating all over the internet, here is an fun take on it from Joy Of Tech.

Full comic posted below (click read more below).

If you were unlucky enough to upgrade your Apple iPhone 4 to iOS 6.1 while preserving the baseband to 01.59.00, you must be facing fluctuating "No Service" and "One Bar Signal" bug after using Ultrasn0w which is supposed to work on the older baseband and newer iOS version.

This Apple iPhone 4 + iOS 6.1 + Modem 01.59.00 + Ultrasn0w 1.2.8 combination results in a major compatibility issue which results in cycling one bar of network and then No service every 20 seconds.

UPDATE : There seems to be a bug in ultrasn0w 1.2.8 when used with iPhone 4 having modem 01.59.00 on iOS 6.1. So Pls. do not proceed with following steps until this gets fixed.

Users relying on Ultrasn0w software carrier unlock can now upgrade to Apple iOS 6.1 as it can now be jailbroken using evasi0n and is now supported by ultrasn0w 1.2.8 update, do keep in mind that you must have the baseband (modem) preserved to one supported by ultrasn0w. Follow the guide posted next to upgrade, jailbreak and unlock iOS 6.1 while preserving the baseband.

Apple has finally fixed the iPhone 4S 3G and battery drainage issue releasing a small 23 MB bug-fix update bumping the latest iOS version to 6.1.1. Good news is the Team evad3rs have also updated their iOS 6.X untethered jailbreak evasi0n to support the latest Apple iOS version 6.1.1.

The update is just 23 MB in size and can be easily fetched using iOS over-the-air (OTA) update feature, after updating users can simply use the updated evasi0n tool to jailbreak iOS 6.1.1 as shown below.