YOKATV KB2 Amlogic S912 TV Box Comes with 32GB ROM - Android Stick & Console AllWinner based Computers

YOKATV KB2 comes with S912 CPU which is a high performance Quad core 64bit chipset which is known for a maximum clock speed of up to 1.5GHz. Apps will never run so smoothly in other chipset devices. People can easily enjoy many hot games and APKs with its 3GB DDR3 RAM and 16GB Flash ROM.
DDR3 2GB RAM, eMMC 32GB Flash
It boasts DDR3 2GB RAM, and eMMC 32GB Flash, advantageous in performance, security and reliability, ascribing to the eMMC memory, ultimately delivering a richer end-user experience.
IEEE 802.11ac
IEEE 802.11ac, one of the wireless networking standards in 802.11 family, is developed in the IEEE Standards Association process for the purpose of high-throughput wireless local area networks (WLANs) on the 5 GHz band.
Gigabit LAN
Gigabit LAN provides a data rate of 1 billion bits per second.
4K Resolution
The latest in a line of broadcast and media resolutions, 4K is due to replace 1080p as the highest-resolution signal available for in-home movies and television. With a minimum resolution of 3,840 pixels wide and 2,160 pixels high, making it the equivalent to two 1080p screens in height and two in length.
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update 10/10/16
This excellent tv box already has update is supposed to optimize the use of kodi not let me put a link but google is "firmware tv box soc S912 yoka KB2 10 10, 2016"
-To update decompresses the files to a flash drive (not the Zip that goes inside) and updated from the app UPDATE Local update mode, select the file USB and click Confirm.
-After updating the TV-Box is interesting to perform a factory reset.

The AE Wish (also known as the AME Wish) AE256 is a Yoka KB2 with a different embossments and a seemingly different and/or older firmware. The latest KB2 firmware works wonderfully in the AE256. When using apps, if any are 64 bit, those are the ones you want. Some CPU controllers have problems with the Octa-Core CPUs. While this has a decent CPU, the Codecs are in need of beefing up and the GPU needs some work. Trying to run true 4K video on the set works limitedly. Have yet to find the actual problem. However it does wonderfully with YouTube 1080 with no problems.
BIG MAJOR PROBLEM: This box does not have access to contacts. The firmware lacks the basics to load contacts or have access to them. Tried loading Google's versions (including the dialer) and got nowhere. If someone has a fix for this, please post it.

Related

Memory bandwidth available to ARM Cortex-A9 cores in Exynos 4210?

Supposedly it should have dual channel 32-bit 800Mbps (the same as OMAP4). But apparently utilizing full memory bandwidth might be a bit challenging with ARM Cortex-A9 (at least early revisions). One example is OMAP4: groups.google.com/group/pandaboard/msg/bd03264b6b800900 And another example is here: anandtech.com/show/4225/the-ipad-2-review/4 (just look at the "Stdlib Write" vs. "Stdlib Copy" numbers, somehow "Stdlib Copy" is unexpectedly low for newer iPad 2).
So could anybody from early adopters benchmark memory bandwidth in Exynos based Galaxy S2? It would be very interesting to see the results for memcpy/memset ("Stdlib Copy"/"Stdlib Write"). There are some benchmark applications in Android Market, and one of them which is called "Benchmark" (softweg) seems to be able to provide "Copy memory" statistics.
I'm going to make a decision whether to buy this phone based on this information
Thanks.
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What did the ipad get?
ice_coffee said:
What did the ipad get?
Click to expand...
Click to collapse
It's difficult to compare results of different tests even if they attempt to measure the same thing. But the whole point is that "Stdlib Copy (single-threaded scalar)" benchmark regressed from 740.6 MB/s to 522.0 MB/s in iPad2 when compared to the original iPad according to the data from Anand's article that I linked.
According to the data provided by Intratech (thanks a lot!) Galaxy S2 shows throughput ~700MB/s for memory copy performance in this particular 'Benchmark' program from the Android Market. And on my Galaxy Tab (Hummingbird, Cortex-A8) the same test program shows ~560MB/s. Looks like Exynos is at least somewhat better than Hummingbird, which is very encouraging, considering the troubles encountered by the other vendors. Here is one more link for OMAP4 - computerarch.com/log/2011/03/01/pandaboard/
And this particular benchmark program is not a perfect one. On Galaxy Tab, I can get better memory bandwidth for memory copy by using NEON instructions and boost it to something like ~670MB/s (up from ~560MB/s shown by the benchmark). Which additionally shows that the results from different tests may vary a bit and it's better to run the same test program when comparing different hardware. Also memory latency for random memory accesses is quite important and I don't know any existing test in Android Marked which could benchmark it, but I hope that Samsung also managed this right
With all that said, such low level benchmarks cover only a single aspect of system performance. And good memory bandwidth is important only for certain types of applications. I was just curious whether Exynos could possibly have any memory bandwidth issues or not.

[Q][Resolved]1 core / 2 core...?

I am currently running the latest stable cm7 (Ba2tF), I found a program (quadrant) that gives me statistics about my phone.
What concerns me is it says I have 1 core. Is this the phone not utilizing resources? If so, is there a known method to force it to use it? Or is it possible the app doesn't register the second core for some reason?
Or is this something I messed up by being a relative n00b??
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Sent from my MB860 using xda premium
jeranon said:
I am currently running the latest stable cm7 (Ba2tF), I found a program (quadrant) that gives me statistics about my phone.
What concerns me is it says I have 1 core. Is this the phone not utilizing resources? If so, is there a known method to force it to use it? Or is it possible the app doesn't register the second core for some reason?
Or is this something I messed up by being a relative n00b??View attachment 772122
Sent from my MB860 using xda premium
Click to expand...
Click to collapse
quadrant does not work well with dual core devices. use apps like cf-bench or antutu
Cheers! I'll check them out.
Sent from my MB860 using xda premium
Okay, let me make this clear, because it's not written in any FAQs I've seen, and it took me a while to work out: Android (at least on Tegra 2 devices) DISABLES CPU cores when they are not needed. Garbarge collection has been moved exclusively to core 0 so that core 1 can remain idle for extended periods and be disabled when not needed. Owing to the fact that looking up system information is not a particularly strenuous, multi-threaded task you will almost NEVER see the second core listed unless you've only just come from another task which was using loads of power and it hasn't yet got round to 'un-latching' the second core.
Look in your system log, you'll see it's full of messages about Core 1 being attatched/detatched.
My only issue is not understanding this behaviour but why the decision to implement it was made. I'm fairly certain it must have overheads and I'm also pretty sure NVidia stated that the CPU cores in Tegra 2 are not individually power gated - i.e. there should be no power saving benefit to doing this...?
Azurael said:
Okay, let me make this clear, because it's not written in any FAQs I've seen, and it took me a while to work out: Android (at least on Tegra 2 devices) DISABLES CPU cores when they are not needed. Garbarge collection has been moved exclusively to core 0 so that core 1 can remain idle for extended periods and be disabled when not needed. Owing to the fact that looking up system information is not a particularly strenuous, multi-threaded task you will almost NEVER see the second core listed unless you've only just come from another task which was using loads of power and it hasn't yet got round to 'un-latching' the second core.
Look in your system log, you'll see it's full of messages about Core 1 being attatched/detatched.
My only issue is not understanding this behaviour but why the decision to implement it was made. I'm fairly certain it must have overheads and I'm also pretty sure NVidia stated that the CPU cores in Tegra 2 are not individually power gated - i.e. there should be no power saving benefit to doing this...?
Click to expand...
Click to collapse
I reckon not having a second core running at 300-800mhz just to use the calculator/calendar would massively outweigh the "overheads" involved in enabling/disabling the 2nd core. I'm not sure about the individual power gates though

[SPECS] Samsung Galaxy Grand Prime Specifications

Hey all
Although this device has been out for a few months, I thought I'd still open up a general specifications and design discussion thread. I can see why people needing dual sim support have opted for the Samsung Galaxy Grand Prime, but what do members think of the display with a low ppi and small memory capacity?
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Specifications:
Display - TFT, 5.0 inches, 540 x 960 pixels (~220 ppi pixel density)
Chipset - Qualcomm MSM8916 Snapdragon 410
CPU - Quad-core 1.2 GHz Cortex-A53
GPU - Adreno 306
RAM - 1 GB
Memory - 8 GB
Camera - 8 MP, 3264 x 2448 pixels, autofocus, LED flash
Secondary Camera - 5 MP
Sensors - Accelerometer, proximity, compass
Connectivity - Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot, Bluetooth v4.0
Battery - 2600 mAh
Dimensions - 144.8 x 72.1 x 8.6 mm
Weight - 156 g
Color Availability - White, Gray, Gold​
Source: gsmarena
I'm really confused why in my Galaxy Grand Prime Total RAM that I check using CPU-Z is 884 MB, but in the promotional box or official spesification (like above) it's says that Galaxy Grand Prime has 1 GB RAM? :banghead:
Sent from my SM-G530H using XDA Free mobile app
Rizqan7 said:
I'm really confused why in my Galaxy Grand Prime Total RAM that I check using CPU-Z is 884 MB, but in the promotional box or official spesification (like above) it's says that Galaxy Grand Prime has 1 GB RAM? :banghead:
Sent from my SM-G530H using XDA Free mobile app
Click to expand...
Click to collapse
The "Lost" memory is allocated to the GPU.
ForumNinja said:
The "Lost" memory is allocated to the GPU.
Click to expand...
Click to collapse
Alright thanks a lot, now I understand
Sent from my SM-G530H using XDA Free mobile app
Battery is 2100 Mah CPU-Z source
nice camera quality...very smooth to use...but one thing...samsung should give inbuild office+pdf app also...bcz now a days its very neccesary
does it support 4G? it says LTE so it should, but when I called my sim card network provider , they told me my phone does not support 4g!!
---------- Post added at 08:00 PM ---------- Previous post was at 07:58 PM ----------
Flamestorm said:
Battery is 2100 Mah CPU-Z source
Click to expand...
Click to collapse
yeah same here, I was in shock when I saw it
The 4g depends on the model, there's some lte, some dual sim
Send from Tapatalk
In one week i have SM-G530FZ i can say I am happy with it
only i dont like no support for dlna on video.apk i must install a 3rd party soft like allsare or another video player to see video on my old smart tv
i hope in next update the fix this or any custom rom make it posible
The cricket variant has 1.5 gb of ram.

Is there a lag problem with micro sd card inserted???

"Hi! After reading this thread, I've decided to remove sd card and tablet stopped lag. Then I've formatted SD card to exFat, removed unused files so some music, several books and 3 photos left there. After putting it back, tablet started to lag again.
Today I've run AnTuTu Benchmark with sd and without. 1 test with card, 1 without, 1 with, 1 without. Between tests I've only closed AnTuTu via back button and nothing else.
So results:
With SD1: 3D 28282, UX 38632, CPU 29294, RAM 9185 TOTAL 105393
Without SD1: 3D 53146, UX 41127, CPU 23673, RAM 7392 TOTAL 125338
With SD2: 3D 28743, UX 38650, CPU 22223, RAM 6571 TOTAL 96187
Without SD2: 3D 57138, UX 43860, CPU 24020, RAM 8690 TOTAL 133708
As you can see, 3D and UX are much faster WITHOUT card. It's prettey old ADATA 32GB. No app is installed there. How can this be?"
bY Other XDA USER
I have a SanDisk UHS-1 card installed in mine, and it scored very well:
3D: 56496
UX: 46457
CPU: 30529
RAM: 10436
Total: 143918
Maybe your SD cards are low quality? Also, I'm running the AQF3 Firmware that was recently released in the US.
Yahiko said:
"Hi! After reading this thread, I've decided to remove sd card and tablet stopped lag. Then I've formatted SD card to exFat, removed unused files so some music, several books and 3 photos left there. After putting it back, tablet started to lag again.
Today I've run AnTuTu Benchmark with sd and without. 1 test with card, 1 without, 1 with, 1 without. Between tests I've only closed AnTuTu via back button and nothing else.
So results:
With SD1: 3D 28282, UX 38632, CPU 29294, RAM 9185 TOTAL 105393
Without SD1: 3D 53146, UX 41127, CPU 23673, RAM 7392 TOTAL 125338
With SD2: 3D 28743, UX 38650, CPU 22223, RAM 6571 TOTAL 96187
Without SD2: 3D 57138, UX 43860, CPU 24020, RAM 8690 TOTAL 133708
As you can see, 3D and UX are much faster WITHOUT card. It's prettey old ADATA 32GB. No app is installed there. How can this be?"
Click to expand...
Click to collapse
Hmm. Mine with a SD card.
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Why is my Xperia 1 micro SD card speed limited?

I bought a new SanDisk extreme 128 GB V30 micro SD Card with read/write speeds of up to 160MB/s / 90MB/s.
But when I test the speed, it was limited to only about 30MB/s / 30MB/s or less. Tested on
1) A1 SD Bench
2) Disk Speed Test
3) CPDT: Storage and Memory Performance Benchmark
All is the same results. Is this normal for Xperia 1?
soullofts said:
I bought a new SanDisk extreme 128 GB V30 micro SD card with read/write speeds of up to 160MB/s / 90MB/s.
But when I test the speed, it was limited to only about 30MB/s / 30MB/s or less. Tested on
1) A1 SD Bench
2) Disk Speed Test
3) CPDT: Storage and Memory Performance Benchmark
All is the same results. Is this normal for Xperia 1?
Click to expand...
Click to collapse
That's a good question. I have the Samsung Evo Select and only get around 30mb/s as well. Thought it was normal so I just ignored it.
This is true for all Xperia devices over many iterations. Not sure why but I live with it.
What? Haven't used Sdcard for a while as my previous phone does not support it. But wtf? Is it a limitation of the ROM or hardware related?
On the official website did not specify details about micro SD Card clearly so I think maybe Xperia 1 not support UHS-I.
But I found someone test Sony's micro SD Card (UHS-I , speeds of up to 95MB/s / 90MB/s.) on Xperia XZ Premium and it works.
Therefore, I tried to believe that this problem was caused by current firmware and expected to be resolved soon.
soullofts said:
On the official website did not specify details about micro SD Card clearly so I think maybe Xperia 1 not support UHS-I.
But I found someone test Sony's micro SD Card (UHS-I , speeds of up to 95MB/s / 90MB/s.) on Xperia XZ Premium and it works.
Therefore, I tried to believe that this problem was caused by current firmware and expected to be resolved soon.
Click to expand...
Click to collapse
I'm afraid that the problem will never get solved. Here is the XZ2 running a lastest software 52.0.A.8.83. Several update got released but it still stuck at around 30 MB/s.
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Btw, It strange that devices from 2017 like XZP and XZ1 can be able to achieve a faster speed than the newer one.
Is there an impact of this speed limitation on 4k video recording?
30MB/s saga continues.
funny fact is the speed is slow also in 2021, with their models 1ii and 5ii. Some people even stuff up expensive UHS2 cards inside hoping for better speeds (thou there's no mobile supporting UHS2). The problem lies simply in the cheap reader (cost cut). On the other side, it's better than no SD card support nowadays...
it is best to do a manual test. for some reason the benchmark app doesn't exploit the maximum speed of the micro sd. In A1 benchmark I have 5mb / s in writing and 60 mb / s in reading, 5mb / s is insufficient for the 4k recording however I do not encounter any problem at this level and when I make a manual copy I have peaks at 65 mb / s much higher than the 5 mb / s listed on the A1 benchmark

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