News tagged ‘A5’
Using saved SHSH blobs, iH8sn0w was able to downgrade his A5 iPad 2 from iOS 5.1 to iOS 5.0.1. He says his method will also work with the A5X processor once firmware updates are released for the new iPad. That means that it's possible to restore to any firmware you want on A5 devices, as long as you have the SHSH blobs saved.
This is great news for those with the iPhone 4S and newer iPads. As it stands now, if you have to restore for any reason, you will be forced to upgrade to the latest firmware. This could leave you without the ability to jailbreak for some time.
On Tuesday Apple officially commented claims that the new iPad is running warmer that its predecessor.
"The new iPad delivers a stunning Retina display, A5X chip, support for 4G LTE plus 10 hours of battery life, all while operating well within our thermal specifications, Apple spokeswoman Trudy Miller said in a statement to The Loop. "If customers have any concerns, they should contact AppleCare."
Apple’s response came only couple hours after the publication of an infrared test that revealed the new iPad runs 10 degrees (Fahrenheit) hotter than the previous-generation iPad 2. The temperatures of the new iPad, however, remain well within Apple's specified operating temperature of 32 to 95 degrees Fahrenheit, or 0 to 35 degrees Celsius.
Yesterday we reported that the new iPad is running warmer that its predecessor. Repair Labs has conducted their own analysis and found that the A5X chip in the new device runs as much as 16 degrees Fahrenheit (about 9.5 degrees Celsius) warmer than the A5 chip in the iPad 2.
According to a series of tests conducted by Repair Labs, the A5X chip registered temperatures up to 36 degrees celsius (96.8 degrees Fahrenheit), compared to A5 readings of 27 degrees C (80.6 degrees F). The experiment involved opening up the tablets in order to directly measure the temperatures of the chips.
Thermal imaging of the third-generation iPad and the iPad 2 demonstrates that the recently released iPad running 10 degrees (Fahrenheit) hotter than its predecessor.
Dutch site Tweakers.net performed the GLBenchmark test on the two generations of iPads for five minutes to measure a heat difference. Using an infrared camera, the publication discovered that the hottest part of the new iPad was 33.6 degrees Celsius (92.5 Fahrenheit), while the iPad 2 measured 28.3 degrees Celsius (83 Fahrenheit).
On Monday iFixit also get their hand on the recently released Apple TV. Having disassembled the device, the team found that this version of Apple’s set-top box does not have a thermal pad, suggesting it runs even cooler than its predecessor.
Even though it apparently runs cooler, the new CPU is more capable and allows users to output 1080p high-definition video content. The device still has the same power supply, though, providing 3.4V at 1.57A.
An earlier disassembly of the new Apple TV discovered that the updated set-top box features the same 8 gigabytes of storage as its predecessor. Monday's latest peek inside the Apple TV also found two antennae inside the device. The addition is presumed to boost signal strength in the latest Apple TV.
Insanely Great Mac
Thanks to various teardowns, we already know that the A5X system-on-a-chip is being manufactured by Samsung and is using the same 45-nm process used for the A5 package in earlier devices. Having stripped down the new iPad, UBM TechInsights found that the amount of area taken up by the quad-core graphics found in the A5X, a significant boost from the dual-core graphics found in the A5.
What should be noted is that the processor cores from ARM are identical in look but the extra real estate on the processors (the A5 measures at approx. 120 mm^2 vs. the A5X which measures at 163 mm^2) is accounted for by the the PowerVR SGX543MP4 GPU cores, of which they are paired in groups of two and then symmetrically opposed to each other.
Following the iFixit’s dismantiling of an iPad 3, Chipworks has
Fixit prefers not to waste time and already got their hands on the new iPad. To disassemble the recently released Apple’s tablet, the teardown experts travelled to Australia where it is officially on sale.
The front panel of the new iPad was removed by using heat, guitar picks as an opening tool, and suction cups. The teardown offers the first conformation of multiply rumours that circulated ahead the release of the new iPad.
Among the details revealed in the teardown:
- The new Retina display is manufactured by Samsung that is claimed to be the sole supplier of Retina displays for the new iPad;
- Broadcom BCM4430 Wi-Fi/Bluetooth chip that means the new iPad supports low-power Bluetooth 4.0;
- A5X system-on-a-chip that was also built by Samsung, and markings on it indicate it was manufactured in the first week of 2012;
Later on Tuesday, a group of photos supposedly taken by the new iPad were posted to the website's forums. It's clear from the images that the new iPad camera is not as good as the 8-megapixel camera on the iPhone 4S, but, when compared to the iPad 2, which had a less-than-1-megapixel resolution, it's a definite step up.
Our step-by-step tutorials for jailbreak iOS 5.1 using redsn0w 0.9.10b6:
You can watch it also on
11:23AM - That’s it!