Qualcomm Announces the Snapdragon 821 SoC

Subject: Processors, Mobile | July 11, 2016 - 11:44 AM |
Tagged: SoC, Snapdragon 821, snapdragon, qualcomm, adreno 530

Announced today, the Snapdragon 821 offers a modest CPU frequency increase over the Snapdragon 820, with clock speeds of up to 2.4 GHz compared to 2.2 GHz with the Snapdragon 820. The new SoC is still implementing Qualcomm's custom quad-core "Kryo" design, which is made up of two pairs of dual-core CPU clusters.

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Quoting Anandtech, who also reported on the Snapdragon 821 today:

"What isn’t in this announcement is that the power cluster will likely be above 2 GHz and GPU clocks look to be around 650 MHz but without knowing whether there are some changes other than clock relative to Adreno 530 we can’t really estimate the performance of this part."

Specifics on the Adreno GPU were not mentioned in the official announcement. The 650 MHz GPU clock reported by Anandtech would offer a modest improvement over the SD820's 624 MHz Adreno 530 GPU. Additionally, the "power cluster" will reportedly move from 1.6 GHz with the SD820 to 2.0 GHz with the SD821.

No telling when this updated SoC will find its way into consumer devices, with the Snapdragon 820 currently available in the Samsung Galaxy S7/S7 Edge, LG G5, OnePlus 3, and a few others.

Source: Qualcomm

Your encrypted Android phone's Keymaster will settle for anyone, not just Sigourney

Subject: General Tech | July 4, 2016 - 01:08 PM |
Tagged: andriod, keymaster, qualcomm, snapdragon, encryption

The only good news about this particular decryption hack requires physical access to your phone and as you should be aware once someone has your device in their hands all bets about security are off.  The vulnerability exists on ARM-compatible Snapdragon system-on-chips and the TrustZone, a secure part of the chip which runs outside of the operating system and passes information pertaining to the encryption on your phone via the Qualcomm Secure Execution Environment.

It is possible to to exploit an Android kernel security vulnerability to load your own QSEE application which can then query the TrustZone for your unencrypted blob and RSA key.  From there it is simply a matter of brute forcing the phones PIN or password which then allows you access to all the encrypted data on the device.  The Register explains not only the vulnerability but also how TrustZone and KeyMaster work on your devices in this article.

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"Essentially, if someone seizes your Qualcomm Snapdragon-powered phone, they can potentially decrypt its file system's contents with a friendly Python script without knowing your password or PIN."

Here is some more Tech News from around the web:

Tech Talk

Source: The Register
Author:
Subject: General Tech
Manufacturer: ARM

New Products for 2017

PC Perspective was invited to Austin, TX on May 11 and 12 to participate in ARM’s yearly tech day.  Also invited were a handful of editors and analysts that cover the PC and mobile markets.  Those folks were all pretty smart, so it is confusing as to why they invited me.  Perhaps word of my unique talent of screenshoting PDFs into near-unreadable JPGs preceded me?  Regardless of the reason, I was treated to two full days of in-depth discussion of the latest generation of CPU and GPU cores, 10nm test chips, and information on new licensing options.

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Today ARM is announcing their next CPU core with the introduction of the Cortex-A73. They are also unwrapping the latest Mali-G71 graphics technology.  Other technologies such as the CCI-550 interconnect are also revealed.  It is a busy and important day for ARM, especially in light of Intel seemingly abandoning the sub-milliwatt mobile market.

A73_boost.png

Cortex-A73

ARM previously announced the Cortex-A72 in February, 2015.  Since that time it has been seen in most flagship mobile devices in late 2015 and throughout 2016.  The market continues to evolve, and as such the workloads and form factors have pushed ARM to continue to develop and improve their CPU technology.

A73_perf_comp_A72.png

The Sofia Antipolis, France design group is behind the new A73.  The previous several core architectures had been developed by the Cambridge group.  As such, the new design differs quite dramatically from the previous A72.  I was actually somewhat taken aback by the differences in the design philosophy of the two groups and the changes between the A72 and A73, but the generational jumps we have seen in the past make a bit more sense to me.

The marketplace is constantly changing when it comes to workloads and form factors.  More and more complex applications are being ported to mobile devices, including hot technologies like AR and VR.  Other technologies include 3D/360 degree video, greater than 20 MP cameras, and 4K/8K displays and their video playback formats.  Form factors on the other hand have continued to decrease in size, especially in overall height.  We have relatively large screens on most premium devices, but the designers have continued to make these phones thinner and thinner throughout the years.  This has put a lot of pressure on ARM and their partners to increase performance while keeping TDPs in check, and even reducing them so they more adequately fit in the TDP envelope of these extremely thin devices.

A73_power_comp_A72.png

Click here to continue reading about ARM's Tech Day 2016!

Oh snap, old phones and new IoT devices just sprung another leak

Subject: General Tech | March 15, 2016 - 01:11 PM |
Tagged: snapdragon, qualcomm, security, iot

TrendMicro discovered vulnerabilities in the Qualcomm Snapdragon 800 series, including the 800, 805 and 810 on devices running a 3.10-version kernel.  They have privately discussed the issue with Google who have since pushed out updates to resolve these issues on their phones, preventing attackers from gaining root access with a specially crafted app.  Unfortunately that is the tip of the iceberg as according to Qualcomm more than a billion devices use Snapdragon processors or modems, many of them IoT devices which have not had this update.  With the already fragmented market getting worse as everyone and their dog are now creating IoT devices the chances are very good that your toaster, fridge and other random internet connected devices are vulnerable and will remain so. 

You should think twice when considering the balance of convenience and security when you are purchasing internet connected household appliances and other IoT devices.  You can see what Slashdot readers think about this here if you so desire.

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"Security experts at Trend Micro have discovered a vulnerability in Qualcomm Snapdragon-produced SoC devices. In fact, it is the same vulnerability that cropped up earlier in the month, affecting Nexus 5, Nexus 6, Nexus 6P and Samsung Galaxy Edge Android handsets. This in itself is concerning as these are devices that are no longer in line for security updates, but more concerning is the fact that the same chips are used in IoT devices."

Here is some more Tech News from around the web:

Tech Talk

Source: Slashdot

Podcast #388 - Samsung SSD T3, Logitech G933 and G633, Vulkan on Android, HTC Vive Pricing and more!

Subject: General Tech | February 25, 2016 - 02:14 PM |
Tagged: YOGA 710, YOGA 510, vulkan, VR, vive, video, T3, T1, Samsung, qualcomm, podcast, Oculus, MWC 2016, logitech, LG G5, Lenovo, htc, galaxy s7, G933, G633

PC Perspective Podcast #388 - 02/25/2016

Join us this week as we discuss the Samsung SSD T3, Logitech G933 and G633, Vulkan on Android, HTC Vive Pricing and more!

You can subscribe to us through iTunes and you can still access it directly through the RSS page HERE.

The URL for the podcast is: http://pcper.com/podcast - Share with your friends!

Hosts: Allyn Malventano, Josh Walrath, and Sebastian Peak

Program length: 1:42:11

  1. Week in Review:
  2. 0:41:35 This episode of PC Perspective Podcast is brought to you by Braintree. Even the best mobile app won’t work without the right payments API. That’s where the Braintree v.0 SDK comes in. One amazingly simple integration gives you every way to pay. Try out the sandbox and see for yourself at braintree­payments.com/pcper
  3. News items of interest:
    1. MWC News!
      1. 0:48:30 Lenovo
  4. Hardware/Software Picks of the Week
    1. Allyn: Use PAR files? Get MultiPar. (PAR3 support!)
    2. Sebastian: Running PS2 games at high res with PCSX2 Version 1.4
  5. Closing/outro

Subscribe to the PC Perspective YouTube Channel for more videos, reviews and podcasts!!

Video Perspective: Samsung Galaxy S7 / S7 Edge Hands-on from MWC 2016

Subject: Mobile | February 25, 2016 - 11:43 AM |
Tagged: MWC, MWC 2016, Samsung, galaxy, s7, s7 edge, qualcomm, snapdragon, snapdragon 820

I got to spend some time with the brand new Samsung Galaxy S7 and S7 Edge phones at MWC this week in Barcelona. Is this your next Android flagship phone?

MWC 16: Qualcomm talks antenna improvements in Galaxy S7

Subject: Mobile | February 23, 2016 - 08:14 AM |
Tagged: snapdragon 820, Samsung, s7, qualcomm, MWC 2016, MWC, galaxy

No one is more excited to see the Snapdragon 820 processor in the Galaxy S7 (in some regions) than Qualcomm and Qualcomm's investors. Missing the S6 design win completely was a big blow to the SD 810 but the move to FinFET technology and a new SoC design have put the SD 820 back in the driver's seat for flagship smartphones it seems. While talking with Qualcomm's Peter Carson, Senior Director of Marketing and Modems, I learned quite a bit about the X12 LTE modem integration with the Galaxy S7 as well. As it turns out, the application processor itself isn't the only thing that has impressed OEMs or that will benefit consumers. 

Modem marketers have a problem - quantifying the advantages of one LTE modem over another can be troublesome and complex. It's not as simple as X% faster or X% longer battery life, though those aspects of performance see improvement with better modem technology. And while of course the new announcement of Gigabit LTE is getting all the media attention at Mobile World Congress this week, there is a lot of excitement internally about the shipping implementation of the S7's modem.

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The Galaxy S7 encompasses the most advanced Qualcomm TruSignal antenna technology implementation to date, combining several features to add real-world benefits to the cellular performance of the device.

First, the S7 will feature the most advanced version of the antenna tuner including a closed loop feedback cycle that will tweak antenna properties in real time based on sensor data and current signal properties. If the proximity sensor is activated or you are rotating or moving the mobile device, the receiver can adjust antenna properties to improve signal reliability measurably.

The best examples fall on the cell edge, where dropped calls are common and low voice quality are found. You can improve the gain of the antenna, that is adversly affected by simply holding the device, for much better reliability and even data throughput. That means fewer dropped calls and network drops for users that have moderate service reliability. Voice quality will get better as well, as the error rates that cause data loss in low signal areas will be reduced. 

But even users that have a good signal can get benefits from the tech - gains of just 2-3 db will allow the modem and receiver to go into a lower power state, reducing 20% of the modem power draw. That won't equate to 20% total system battery life improvement but users that depend on their phones for extended use will see benefits from this integration.

Another TruSignal feature included in this modem implementation is smart transmit antenna switching. The simple explanation here is that the modem can swap which antennas are in receive and transmit modes in order to improve the transmit (upload) performance by as much as 10db! Based on properties of the antenna signal, position of the device and if you are in a heavy upload workload (posting some photos to Facebook, a video to YouTube), TruSignal allows the modem to change in real-time.

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These techniques are additive so Galaxy S7 owners will find that both the antenna tuner and antenna switching are going to move the cellular performance forward, though Qualcomm isn't saying if ALL implementation of Samsung's new flagship smartphone will implement the features. I would guess that we'll see this on the Snapdragon 820 + X12 powered models only, but I haven't learned yet which modem the Exynos-powered versions are using yet. Turns out the versions of the S7 that utilize the Samsung Exynos SoC are using a non-Qualcomm modem, so they will not support the features seen here.

Source: Qualcomm

MWC 16: LG G5 Hands-on. Performance and Modularity

Subject: Mobile, Shows and Expos | February 22, 2016 - 05:09 AM |
Tagged: video, snapdragon 820, snapdragon, qualcomm, MWC 2016, MWC, LG, G5

The new LG G5 flagship smartphone offers a unique combination of form factor, performance and modularity that no previous smartphone design has had. But will you want to buy in?

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I had a feeling that the Snapdragon 820 SoC from Qualcomm would make an impression at Mobile World Congress this year and it appears the company has improved on the previous flagship processor quite a bit. Both Samsung and LG have implemented it into the 2016 models, including the new G5, offering up a combination of performance and power efficiency that is dramatically better than the 810 that was hindered by heat and process technology concerns.

Along with the new processor, the G5 includes 4GB of RAM, 32GB of on-board storage with micro SD expansion, a 2,800 mAh battery and Android 6.0 out of the box. The display is 5.3-in and uses LG IPS technology with a 2560x1440 resolution, resulting in an impressive 554 PPI. LG has updated the USB connection to Type-C, a move that Samsung brushed off as unnecessary at this time.

The phones design is pretty standard and will look very familiar to anyone that has handled a G4 or similar flagship smartphone in recent months. It was bigger in the hand than the iPhone 6s but considering the panel size differences, it was more compact than expected.

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Modularity is the truly unique addition to the G5 though. The battery is replaceable by sliding out a bottom portion of the phone, released with a tab on the left side. This allows LG to maintain the metal body construction but still offer flexibility for power users that are used to having extra batteries in their bag. This mechanism also means LG can offer add-on modules for the phone.

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The first two available will be the LG Cam Plus and the LG Hi-Fi Plus. The Cam Plus gives the phone a camera grip as well as dedicated buttons for the shutter, video recording and zoom. Including an extra 1,200 mAh of battery is a nice touch too. The Hi-Fi Plus module has a DAC and headphone amplifier enbeded in it and can also be used connected to a PC through the USB Type-C connection; a nice touch.

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I was overall pretty impressed with what LG had to offer with the G5. Whether or not the modular design gains any traction will have to be seen; I have concerns over the public's desire to carry around modules or affect the form factor of their phones so dramatically.

MWC 2016: LG Announces the G5 Smartphone

Subject: Mobile | February 21, 2016 - 02:52 PM |
Tagged: snapdragon 820, smartphone, qualcomm, MWC 2016, MWC, modular phone, LG G5, LG, ips, G5, Android

LG has officially unveiled their newest flagship Android handset, and in addition to high-end specs the G5 features a unique modular construction.

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The LG G5

The G5 is powered by the new Snapdragon 820 SoC, and offers a 5.3-inch, 2560x1440 IPS display (making slightly smaller than the earlier G4, which was a 5.5-inch device with the same resolution). And while the G5 looks every bit a sleek Android flagship, there’s more going on here than the typical sealed handset. LG has implemented a modular design, where optional components can be added from a port on the bottom of the phone.

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The LG Cam Plus (left) and Hi-Fi Plus (right)

The first of two announced modules is the LG Cam Plus, which is a camera grip that also adds 1200 mAh to the battery capacity (for a total of 4000 mAh). The second is the LG Hi-Fi Plus, which adds a high-resolution DAC and headphone amp to the phone. The headphone amp is “tuned by B&O”, and the DAC supports up to 32-bit / 384 kHz. The Hi-Fi Plus can also be used as a standalone USB device.

lg-g5-infographic.png

(Image via Android Police)

One of the features that had leaked ahead of the announcement was an always-on display, leading to speculation about the use of an OLED panel. But this is LG we are talking about, and they have implemented a high-DPI (554) IPS display instead. So how does this always-on display feature avoid aggressively draining your battery? The post from ComputerBase offers this analysis:

“Instead, the company opted for an optimization of display drivers and power management in order to realize the permanent display of notifications, time, date and other information on the large main screen. The adjustments for example it is possible to limit the backlight to a part of the screen. According to LG, the activated always-on function consumes thanks to the optimizations per hour 0.8 percent of the battery charge.”

Specs via Android Central:

  • Display: 5.3-inch IPS quad-HD quantum display (2560x1440, 554 dpi)
  • Processor: Snapdragon 820
  • Storage: 32GB UFS ROM, microSD up to 2TB
  • RAM: 4GB LPDDR4
  • Rear camera: 16MP main, 8MP wide-angle (135 degrees)
  • Front camera: 8MP
  • Battery: 2800 mAh removable
  • Modules: LG Cam Plus (camera grip with 1100 mAh), LG Hi-Fi Plus with B&O Play
  • Dimensions: 149.4 x 73.9 x 7.7mm
  • Weight: 159 grams
  • Networks: LTE/3G/2G
  • Connectivity: Wifi 802.11a/b/g/n/ac, USB Type C, NFC, Bluetooth 4.2
  • Colors: Silver/Titan/Gold/Pink
  • Operating system: Android 6.0.1

There were three additional accessories announced with the phone: The 360 VR (a VR headset) 360 CAM (for creating 360-degree movies and photos) and something called the Rolling Bot (a Wi-Fi connected sphere equipped with a camera, mic, and speaker).

Ryan had hands-on time with the G5 from LG's booth at MWC 2016:

No specific pricing or release date have been announced yet, but we should know more next month when LG is expected to provide more release details.

MWC 2016: Lenovo Announces VIBE K5 and K5 Plus Smartphones

Subject: Mobile | February 21, 2016 - 01:00 PM |
Tagged: VIBE K5 Plus, VIBE K5, Snapdragon 616, Snapdragon 415, smartphone, qualcomm, MWC 2016, MWC, Lenovo, Android

Lenovo has announced a new pair of smartphones in their VIBE series, and these offer very impressive specs considering the asking price.

K5 Family.jpg

The VIBE K5 will retail for $129, with the K5 Plus slightly higher at $149. What does this get you? Both are 5-inch devices, with a modest 1280x720 resolution on the standard K5, or FHD 1920x1080 on the K5 Plus. The phones are both powered by Qualcomm SoCs, with a Snapdragon 415 in the K5 (quad-core 1.4 GHz), and the faster Snapdragon 616 (8-core 1.7 GHz) in the K5 Plus.

Here’s a look at the specifications for these phones:

  • Screen: 5.0” HD (1280x720) display (K5) or IPS Full HD (1920x1080) (K5 Plus)
  • Processor: Qualcomm snapdragon 415 octa-core (K5) or 616 octa-core processor (K5 Plus)
  • Storage: 2GB LP DDR3 RAM | 16GB eMCP built-in storage | up to 32GB microSD expandable storage support
  • Graphics: Adreno 405: up to 550MHz 3D graphics accelerator 

  • Camera: Rear: 13MP with 5-piece lens and FHD video recording, Front: 5MP fixed-focus with 4-piece lens
  • 
Connectivity: Dual SIM slots with 4G LTE connectivity + BT 4.1; WLAN: Wi-Fi 802.11 b/g/n, Wi-Fi hotspot 

  • Battery: 2750mAh interchangeable battery 

  • Audio: 2 x speakers, 2 x mics, 3.5 mm audio jack, Dolby Atmos
  • Thickness: 8.2 mm (.32 in)
  • Weight: 142 g (5 oz)
  • OS: Android 5.1, Lollipop

K5_Silver.jpg

On paper these smartphones present a compelling value reminiscent of the ASUS Zenfone 2, with the K5 Plus easily the better bargain with a 1920x1080 IPS display and octa-core processor for $149. We’ll have to wait to pass judgment until the UI performance and camera have been tested, but these new VIBE K5 phones certainly looks like a promising option.

The VIBE K5 and K5 Plus will be available in March.

Source: Lenovo