Develop Bugs

[ANDROID] BUYER'S GUIDE [how to choose from plethora of devices][TUTORIAL]

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INTRO -
Hi all.I made this guide to help people to land at a good device.I have some experience of using worst phones.I myself took a device which doesn't even run Decent app's or games .Only thing that run real smooth are the Games which are none-less than "8 BIT GAMES".I won't be Advertising any Device here unless it deserves to be.
We usually GOOGLE about some good device's out there where we follow what actually the Website's say blindly,but i really dont prefer it..Here let's get independent and take the decision of buying phone's by ourself .​
ABOUT ANDROID-
Android is a software bunch comprising not only operating system but also middleware and key applications.Android is still very much the ARM instruction set and all Android open source build's are geared towards ARM processors.Android is an ARM-centric OS.Android is a powerful Operating System supporting a large number of applications in Smart Phones. These applications make life more comfortable and advanced for the users. Hardwares that support Android are mainly based on ARM architecture platformApplications
These are the basics of Android applications:
• Android applications are composed of one or more application components (activities, services, content providers, and broadcast receivers)
• Each component performs a different role in the overall application behavior, and each one can be activated individually (even by other applications)
• The manifest file must declare all components in the application and should also declare all application requirements, such as the minimum version of Android required and any hardware configurations required
• Non-code application resources (images, strings, layout files, etc.) should include alternatives for different device configurations (such as different strings for different languages)​​
THE ARM Processor Family(ABOUT PROCESSOR'S)​
ABOUT ARM :
ARM (Advance RISC machines) is a UK company that built's RISC processor's.ARM doesn't sell microphone's intead it linces it's technology to other companies along with the option to drop the Vanilla (non-modified) ARM core in their SoC (System On Chip).​
ABOUT SoC (System On Chip) :
The system on Chip is single peice of chip which comprises of CPU,GPU,memory controller ..etc . SoC may either have ARM or x86 core technology.​
INSTRUCTION SET :
These are special functions that has a processor can perform several stuff such as Arithmetic instruction,floating point,bit manipulation..etc . ARM support's a variety of instruction's .​
THE ARM ARCHITECTURE :
The ARM Architecture is the base for all ARM related Core's. Usually a companies like Qualcomm,broadcom ,etc which would be creating custom cores will licenses the Architecture for tweaking it .​
THE ARM CORE :
By varying the core clock speed,instruction set,,ARM Produces many cores for SOC builder's . Such is Cortex A7,A8,A9 core family.​​
So,let's now move to the Basic point's one must keep in mind to buy an Android device ..​
1.SCREEN SIZE :
Screen size is subjective and should be based on your taste.Still,smartphone,it's better to opt for a screen,that's bigger than 4" inches and more than 7" inches would do good for a Tablet.​
2.RESOLUTION :
Look out for the device which has higher PPI (pixels per inch) value .. PPI more than 250 is considered good but higher the PPI the better the device would be ..​
3.HARDWARE :
In terms of Android OS one needs better hardware to get a lacklustre view of browsing and the fact 'THE HIGHER THE BETTER" apply's here too ..Architecture and process nodes boost performance more than stuffing in more cores with enhancement's .. Phone's with Quad-core SOC'S will surely lead to batter draining .. Go for the device which is powered by cortex A9 , A7 technology paired with Quad core's or even dual core's .​
3.1.GPU :
Some of the best GPU'S out there are made by Qualcomm (adreno) ,ARM (mali) ..But make sure that you device doesn't have a BROADCOM powered GPU.. Broadcomm has a closed-source policy and they make the Buggy GPU'S out there .. Better opt fo Qualcomm powered GPU .​
4.UPDATE'S OF ROM :
This is plagued by OEM'S or vendors.This is the main reson behind the stagnating with fragmentation's over verions .This is completely controlled by the device Vendor's .
Just make sure to check the developement status of the device here at XDA which you landed to buy ..​​​
Hope this thread helped you ,in it's own way .. ​

reserved

Reserved

Awesome Guide it will more helpfull for new user's
Thanks .

UMI Z with Helio X27

UMI Z with Helio X27 coming soon.
UMI allegedly have a device ready to be released in December and this mysterious UMI Z could be the first one with the Helio X27 chip onboard. it�ll be offered in a 6GB RAM configuration, and should have a 4,000mAh battery with up to 64 or 128GB of storage space with microSD expansion
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Mediatek Helio X27 (MT6797X), The new Helio SoCs upgrade the overall performance, camera quality and power consumption of the SoC family.It is a similar tri-cluster deca-core design like the X2x predecessors, but the maximum frequency goes up to 2,6 GHz on the most powerful ARM Cortex A-72 cluster. There is also a frequency bump for the Mali-T880MP4 GPU. It has MiraVision EnergySmart Screen technology to greatly enhance power efficiency and upgraded Imagiq ISP for camera processing adding built-in 3D depth engine for depth of field processing and multi-scale de-noise engines.
The X27 continue along MediaTek's Tri-Cluster Deca-Core architecture on a 20nm process, with cluster setups of 2x Cortex-A72 + 4x Cortex-A53 + 4x Cortex-A53,Helio X27 also leads the pack in the GPU, with a slight increase in speed of the Mali-T880 MP4 from 850MHz
The differences manifest themselves in the various clock speeds of the clusters, the clock speeds of the GPU and the presence of what MediaTek is calling "EnergySmart Screen" feature.
MediaTek is claiming best in-class performance and power consumption with the new SoCs, with overall processing improvement of more than 20% and "significant" increases in Web browsing and application launching speeds. The SoCs also support dual camera photography with MediaTek's upgraded Imagiq ISP (Image Signal-Processing) solution, which MediaTek claims is the first ISP to integrate color and mono cameras and depth-of-field applications into a single ISP.
With regards to MiraVision EnergySmart Screen technology, this is a power-saving tech which modifies the display parameters based on the on-screen content and ambient lighting, claiming up to 25% reduction in display power consumption while maintaining the best visual experience possible. It will be interesting to see this technology in practice through competent OEMs on good displays and experience the quality tradeoff (or as MediaTek claims, the lack of tradeoff).
UMi Z specifications and features
Operating system ; Pure Android 6.0.1 Marshmallow/ Android 7.0 OTA
CPU ; MTK Helio X27, 10x Cortex A72+ 2.6GHZ
GPU ; Mali-T880 MP4, 875MHz
Memory ; RAM 4GB+ ROM 32GB
Battery ; Quick Charge ,3780mAH/4.35V,PE+ 2.5A/1.67A(5V/7V/9V) 1.25A(12V)
Screen ; 5.5 inch,SHARP® IGZO (2.5D Arc screen), 1920x1080 pixels
Rear Camera -13MP SAMSUNG S5K3L8,PDAF auto-focus,Laser auto-focus,Quad-LED flash
Front camera -13MP FF SAMSUNG S5K3L8,Softlight LED
Video ;1080P, 2K, 4K

If Design are the same like umi zero.. I buy one... I have the zero...
Enviado do meu P9000 através de Tapatalk

Doogee Shoot 2 Review

SPECS:
Brand – Doogee
Model – Shoot 2
Device Type – Android Smartphone
CPU – Quad-Core 1.5 GHz ARM Cortex-A7
Chipset – MediaTek MT6580A
GPU – ARM Mali-400 MP1, 2-Cores
Camera -5 Megapixels with LED and AF Rear Camera | 5 Megapixel Front camera
Memory – RAM- 1GB/2GB | ROM 8GB/16GB External Memory Supports Up to 32GB
Display – Screen size 5.0 inches HD Display (1280×720 Pixels)
Battery – Removable 3,360 mAh Lithium-Ion
SIM – Dual SIM (Micro + Micro)
Sensors -Proximity Sensor, Accelerometer, Ambient Light
Color – Black, Gold, Gray
Operating System – Android 7.0 Nougat
I/O Interface – 2 x Micro SIM Card Slot, TF Card Slot, Micro USB v2.0 Port, 3.5mm Audio Out Port, Power Button, Volume Button, Microphone, Speaker
Dimensions – 142.6 x 72.6 x 9.5 mm
Weight – 174 Grams (With Battery)
More Feature – Plastic Body Design, HSUPA 5.76 Mbps Upload, HSDPA 21 Mbps Download, Computer Sync, OTA Sync, Tethering, FM Radio, HotKnot, Noise Cancellation, 2.5D Curved Glass Screen.
REVIEW:
The Doogee Shoot 2 provides customers with a very interesting value proposition, being the cheapest phone on the market with a dual rear facing camera set up., and boasting premium features like fingerprint unlocking.
The box came with a usb cable, a charger with an Asian 220V plug, and of course the phone. I have tonnes of chargers from my old phones, so the Chinese charger wasn't too big of an issue for me.
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The phone itself has a pretty hefty feel, weighing in at 178 g. It has a 5" 720p displa, with the 3.5 mm earphone jack and micro usb port on the top. On the bottom of the phone, it has some holes for the sound to come out. The phone has a fingerprint sensitive home button on the bottom bezel, and a power and volume button on the right side of the phone. The SIM and SD card slot is under the back cover. Overall the device has a good design and feels good in the hand.
The phone runs Android 7.0, and the set up in the beginning was a little troublesome. It was kind of slow and restarted on me. Maybe because the variant I had was the 1 GB RAM variant, and that the problem won't happen with the 2 GB RAM variant. But after the initial set up, and especially after the software update, the phone was much snappier. The phone comes with a little bloatware, as expected from pretty much all manufacturers, but overall the phone still was able to mostly retain the stock android feel. The feel was snappy, and there was no lag. For those who don't like the default launcher, of course you can install a 3rd party launcher (I did Nova Launcher), and replace all the 3rd party apps with apps of your choice. The fingerprint sensor did as it was supposed to, and I had no issues unlocking with my fingerprint, being able to unlock in about a second.
Antutu Benchmarks scored it at 22877, which is as fast as a Moto G3 3rd Gen at 23258.
The 5" screen is very bright, and watching YouTube was fine. The speakers are more than adequately loud as well. Definitely the area where Doogee spent the most time on was the camera app that comes included with the phone. It has tonnes of modes and options for camera enthusiasts to play around with, like ISO, exposure, white balance, etc. The app also has a dedicated Bokeh mode to really take advantage of the dual 5 mp camera lenses. It also boasts a 2x optical zoom, just like what the iPhone 7 Plus has. Truly, the dual lens camera is the highlight feature of the phone.
Last but not least is the battery life. It's phenomenal. With the standby intelligent power saving mode on, I can get about 3 days out of it if I don't touch my phone. Even with moderate usage, I can get a day out of it no problem. That's because it has a 3360 mAh battery. Paired with a screen with 720p resolution, that means the Shoot 2 can last much longer on a battery of this size compared with a Samsung S8, with it's 1440p screen.
Overall this is a great entry level phone, designed especially for those who want to snap some great photos without having to fork over hundreds for the higher end phones. Other than the hiccup during the initial set up, there were no issues with the phone at all, and from the time I got the phone and wrote the review, there were 2 OTA updates available for the phone. I look forward to the continued support from Doogee to keep this phone up to date.

[Review] Doogee MIX - Silver :: 64GB / 6GB RAM

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Doogee MIX - Silver​
DISCLAIMER ::
This is purely my opinion and experience with the device, I am no way affiliated with the manufacturer. I was sent the device for the purpose of a review, so I am not biased in anyway.
SPECS ::
Dimensions:
Width: 76.2mm
Height: 144mm
Thickness: 7.95mm
Weight: 193g
Display:
5.5" AMOLED
Resolution: 720 x 1280 / 320 DPI
Refresh rate: 63.04fps
CPU:
CPU Type: ARM Cortex-A53
Max CPU Frequency: 2.6GHz
Cores: Octa (8)
CPU Bit: 64-bit
GPU:
Type: ARM Mali-T880 MP2
Max GPU Frequency: 1GHz
Resolution: 720 x 1280
Max Display Resolution: 1920 x 1080
Camera
Rear camera (Dual): 16.0MP + 8.0MP
Front camera: 5.0 MP
Cell
Dual SIM card standby: Micro-SIM + Nano-SIM
2G: GSM: 850/900/1800/1900MHz
3G: WCDMA: 900/2100MHz
4G: FDD:B1/3/7/8/20
THOUGHTS ::
First and foremost let me start off by saying the finish on the silver MIX is stunning, when I first removed it from the box I was taken back... the mirror finish isnt something you come across often and it looks great. I will admit it is a finger print magnet, gorgeous nether the less.. definitely worth the upkeep.
The MIX's price point is definitely targeting the low end market, I've found it being sold generally around the $200 USD mark. Which I think is definitely a fair asking price for the device you receive. Obviously purchasing a device in the low range market your not getting all the bell's and whistles and that's to be expected.. however the Doogee MIX brings alot to the table.
Obviously the design is heavily inspired by the Xiaomi MIX and that's a good thing because the Doogee MIX looks great! The bezel-less screen really give's the device a premium feel. I've had no issues with one hand operation and I think the device is appropriately proportioned.
Now let's move onto the software, the Doogee MIX is running FreeMe OS.. for the most part I've enjoyed this android flavour. The UI is not heavily modified its nice and simple, the default launcher supports themes, little to no bloatware, OTA software updater. Includes everything you could possible want or need out the box. However there are a few minor bugs, I have brought these up to Doogee so I am hoping they will be resolved in a future software patch.. overall it's been a very positive experience, the bugs include the following:
Battery usage disabled in settings.
Battery percentage doesn't change colour according to light / dark text.
Android system webview refuses to update in the playstore.
Few minor translation errors in the settings app.
I'm not the biggest fan of the camera app, I really would like to see the UI revamped.. switching modes is a little clunky. However the camera does take decent photo's, I must say. There is little to no video stabilisation so that could definitely be improved. Overall all for a budget phone, it's pretty good... here's what the camera app looks like:
You can find some images I captured with the MIX below, I think they came out pretty good.. I was impressed.
The dual cameras don't operate as you might think, the secondary camera is used only in "blur" mode.. which as the name suggests blurs out the surrounding background of the image to increase focus on the subject.. I really feel like this was a missed opportunity, I really wish they did something more with the dual cameras. The blur effect can easily be done with software, really doesn't need a second camera to do so.
Ah of coarse the fingerprint scanner, almost forgot to mention this.. the finger print scanner is positioned on the front of the device on the bottom bezel. It doubles as a home button when the device is unlocked. In terms of accuracy its pretty good ! I personally don't use fingerprint scanners, I find them annoying... however it worked good in my tests, very accurate.. could be a little faster tho in my opinion.
Being a developer I naturally immediately requested kernel sources, Unfortunately tho Doogee have yet provided them.. which is a real shame because I have a working TWRP recovery for the device already, however unfortunately touch is not enabled in recovery. The only way to fix this is with kernel sources.. for the time being I have been using a OTG cable with a mouse to navigate TWRP. I really hope to see kernel sources release in the near future.
Overall my experience with the MIX has been positive, it does have a few quirks I must admit.. but considering how cheap the phone is they are easily excused. Performance is pretty dam good, camera is definitely adequate for photos, FreeMe OS is a really clean android flavour. Obviously sacrifices are made when purchasing budget phones... is it fair to compare the Doogee MIX to phones that cost double it's price ? Absolutely not...
CAMERA SAMPLE (CAPTURED BY DOOGEE MIX / UNCOMPRESSED)::
Sample 1
Sample 2
Sample 3
Sample 4 (Blur mode - using both cameras)
MISC PHOTOS (CAPTURED WITH A GALAXY S6 / COMPRESSED BY IMGUR)::
Device in hand
Device in hand (Backside)
Device (Backside)
Device (Front)
Packaging
SCREEN CAPTURES (COMPRESSED BY IMGUR)::
Lockscreen
Default launcher
Quick toggles
CPU-Z - While running PlayStore updates (All cores firing)
CPU-Z - Device info
CPU-Z - Battery
Settings - About
Battery percentage colour bug example / battery usage disabled ?
Android system webview update loop example

Khadas VIM4 – An Amlogic A311D2 SBC with 8GB RAM, Wi-Fi 6, HDMI input & output

Khadas VIM4 – An Amlogic A311D2 SBC with 8GB RAM, Wi-Fi 6, HDMI input & output
Well to add to the Hype he we have a look at the Vim4 as received today by our good friends at Khadas
Not a lot to show but in the same breath a lot to see..
KEY FEATURES
Amlogic A311D2
• x4 A73 performance cores at 2.2GHz, x4 A53 efficiency cores at 2.0GHz.
Mali G52 MP8 GPU
• The 800MHz Mali G52 graphics processor and supports 4K UI.
8GB RAM
• 8GB LPDDR4X RAM with 64-bit bandwith and clocked at 2016MHz.
HDMI & DMIC Inputs
• x1 micro HDMI input at 4K 60 fps, x2 digital microphones for versatile AV recording.
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Lots more to happen:
You can also will find more soon at Khadas Forum and Khadas Shop.
Khadas < click for more info

Key Features:
➢ HDMI input & digital microphones for smart display & video conferencing applications
➢ Mali G52MP8(8EE) 800Mhz GPU, supports 4K UI, H.265 and H.265 encoding at 4K 50fps
➢ x4 display interfaces: HDMI, MIPI-DSI, V-by-One & eDP
➢ 8GB LPDDR4X 2016MHz, 64bit RAM for memory intensive software applications
➢ AP6275S Wi-Fi 6 module with 802.11a/b/g/n/ac/ax, 2X2 MIMO and RSDB
➢ OOWOW embedded service, for online OS delivery, device maintenance and more!
User Manual:
https://dl.khadas.com/products/vim4/manual/vim4_user_manual.pdf
Specifications:
https://dl.khadas.com/products/vim4/specs/vim4_specs.pdf
Comparisons:
VIM4 vs VIM3 Pro vs Edge-V Pro
https://dl.khadas.com/products/vim4/specs/vim4_comparisons.pdf
Documentations & Download:
/products/vim4/
Khadas Download Server
dl.khadas.com
https://docs.khadas.com/vim4 (W.I.P)
OOWOW is a standalone embedded service for seamless online OS delivery, device maintenance, and much more!
OOWOW is developed and maintained by Khadas Team. VIM4 is the first Khadas single board computer to have OOWOW pre-installed.
OOWOW makes system installation much easier. You can download and install your preferred OS directly from the Cloud.
OOWOW will start automatically if the device storage is empty. With OOWOW you will always be in control of your VIM4.
Further information: https://docs.khadas.com/oowow
Khadas Community:
Khadas VIM4 is coming soon!
Yeayyy VIM4. Some freshly baked chips here. Shouldn’t do that cause 8gb is enough for what the board is capable of doing. Anything more might be just waste of ram chips. 16gb would be needed for 8 cores of A73. Don’t be sad, try the 8gb version and you will be surprised to see how...
forum.khadas.com

A video as Found on the Interweb:

Bit of a look at the Vim4 and OOWOW,
As Seen it Krescue, Dev Version need to up SPI to OOWOW..
Personally I think WooHoo would have been a better name
First fire up of my VIm4 and lets see it do its thing.
Fitted into an earlier model Vim case seems to work and fit with a bit of a file and drill
Created an extra hole in From for the Mini D HDMI plug to spec of course

Now we have OOWOW installed lets have a quick look ubuntu,
all good easy to use (OOWOW) not a big ubuntu user

Khadas VIM4 Aluminium Case
KKSB Khadas VIM4 Aluminium Case – Black
This KKSB metal case has been designed for effective passive cooling. It is made of CNC-machined aluminium. The case is compatible with the Khadas VIM4. The case has labelled cutouts for Khadas VIM4 interfaces and connectors. The case cover has been designed to work as a built-in heatsink. The...
kksb-cases.com
More soon

Own a Vim4 a need a case.
have I got something to show you
Thanks to KKSB, let's have a look see at what we have here
KKSB Khadas VIM4 Aluminium Case – Black
This KKSB metal case has been designed for effective passive cooling. It is made of CNC-machined aluminium. The case is compatible with the Khadas VIM4. The case has labelled cutouts for Khadas VIM4 interfaces and connectors. The case cover has been designed to work as a built-in heatsink. The...
kksb-cases.com
The Box
All the Bits to make it Happen
Inside and base
Side Buttons to Fit etc
Out with the Old
In with the new, fits like a clove