Tag Archives: smartphone

New dual lenses smartphones awaiting.

Here I ordered to two different model but same SOC – MT6737T for supporting dual lenses – Doogee Shoot1 and Bluboo Dual.

Bluboo was made an order about 2 weeks ago, but a problem of China holiday (lunar’s day as I heard) was among day in resting term. So I need to wait for more weeks until it shipped to me. And doogee Shoot 1 will arrived to me more faster than Bluboo dual, because it ordered with EMS shipping option and seller promised processing will be soon – Before I had ordered Ulefone Vienna from them, it was extreamely faster than any other sellers, really impressed.

I had an Oukitel U20 plus, but it is not solved UI problem on bottom of screen – blurred stripes still annoying me and I don’t like to use it until solve by new Oukitel OTA be released – And I promised to myself, no more Oukitel, ever. Stop buying junk, again !

Bluboo Dual may not supports hardware touching navigation area in bottom side like other Chinese smartphones – yes, it is soft navi key on screen ! so I am worry about this.

I will write down my experiences soon after Ulefone Vienna, A.S.A.P.

Topping NX2 USB DAC & AMP review


The brand name of “Topping” was not familiar for me, so I have to anguished buy it or not in about 100 times. Then I have to trip again, to mistic big land in Asia, yeah.

It took about a month while arrive package to me. Seller seems to really lazy in most of Chinese seller. Whatever it’s bee past for me, tried to having experience of this small thinny device.



  • TI PCM2704 (Blurr-Brown) Chipset.
  • 1000mAh Li-Ion internal battery, charges at 5V 2A in maximum.
  • Maximum 100 hours running time.
  • Seperated input ports : Charge and USB/OTG in micro USB (it seems to revisioned)
  • Volume control wheel (not knob)
  • Slim height

It was hard to decide before buy this one because back pannel USB ports seems legacy USB port, and it makes many different kind of issues. But my latest version NX2 was improved as micro USB port.


Both of these ports could be used in same time. NX2 automatically selecting which port be used in charge battery. USB DAC port means OTG for some Android phones. Not all devices was not worked with this DAC.


USB DAC works as USB 1.1 and output as maximum 16bit 48KHz (DVD quality in Windows) – Most of USB 1.1 device limited to bandwidth for 16bit 48KHz output. USB 2.0 handles SPD-IF for 24bit 96KHz.

It seems just an optional service function to enjoying music in anywhere even has no sound device in system or very noisy bad situation.

Sound quality

I have compared with FiiO E07K and Zhilai devices and it may not faired comparsion because it is not similar level of price and performance.


Topping NX2 has little bit cold sound in hearing with same IEM. I can not judge it is good or not, it was not better than FiiO E07K as both of DAC and AMP.

But as perfect portable AMP and DAC, maybe NX2 is the best among of mine, slim metal body is good to carry and volume wheel control gave to me more comfort experience.

Some missed features

  • Gain control
  • Bass control

Some features not able to find. NX2 has no gain control, fixed to high gain, and it may about 10~12 dB. And no bass equlizer, it means some high impedence headphone need more bass from ouput source with internal equalizer, but most of smartphone has this.

Compare with FiiO Q01, it is little bit more lower price, and more comfort to handle it, but not more nice audio quality. It is totally depends on price at audio quality, but I like to use NX2 than FiiO Q01 beacuase suitable combine with any smartphone by flat and slim shape. And Q01 volume knob make me sometimes to hurt my other devices in my carrying bag.

Topping NX2 is much comfort utility deivce for listening more powerful music from your any source even PC and laptop to smartphones. Recommend for HiFi beginer or lone music wolves.

Next prviate review is Doogee F5.


Actually, I am little bit tired to buying new Chinese budget smartphones in 720p HD display, So I tried to pay more over 110 USD for 1080p FHD display smartphone – Plus essential requriement: Metal frame – Doogee F5. Actually I paiedĀ  less than average 140 USD in AliExpress with big anniversary sales with DHL shipping fee.

Now it is coming to me, and hope it doesn’t had any decay.

Next is Oukitel K4000


My next review will be Oukitel K4000 (black) from Chinese main land. It used magnesium metal alloy for main frame seems like to other Android phones thoes are used same structure. Only difference is this phone not made with duralumin alloy.

K4000 advertised their strong front screen glass. They are using K4000 as a hammer, see below Youtube video.

I hope it is really in life durable smartphone for limited waters and scratch resisted. And a great battery capacty of 4000mAh at low energy costed CPU !

Any reason to use better smartphone?


We are living thru over half of 2015 and there’s too many options to choose what I need a smartphone or many of them for my life. Most of they are usingĀ  really minimalized size with highest integrated CPU like ARM architecture Cortex A52 or above or something alien technology, ha –

When I look around for what people holding on their hands, Almost iPhone or Samsung, and little of LGs in South Korea. Not kind of myself people is not be found easily. I know they are always looking better and proudly for other people’s sight. I suppose to they are actually chosen their smartphone for fully usage of understanding its function for what included.

Most of android smartphones had NFC in South Korea even it excepted wirless charging function that not like overseas selling models. But many people couldn’t know how it works and where it could be used because all korean telecom companies are blocked NFC functions used for public. Without their permission, it is not a good technology. So Kind of big brother company like Samsung doing their own paying market with S-Pay (not spay, hugh … OK) with non-NFC. I think it is similar like Apple even they are used kind of NFC, but its name is not NFC.

People are spending big money for changing their smartphone for lastest model in expensive payment or slavery contracted in over 2 years. They are restrict themself for long term for small electronic device. What a wonderful world ? Sure I was too for my iPhone5, because it is too expensive for lump sum. ( Damn Apple … but I don’t have a choice, I know. )

But if you don’t like to use Apple, and if don’t like to use big brother company like Samsung and LG, Or something others, Try to use Chinese low priced smartphone as like buying used second hand. It will be better than used and get a fresh feeling. Plus bonuse, you can change your cheappy for evety few monthes as money for allotment to paying expensive something.

Sure it is all over your choice. I am still using iPhone5 64GB as primary, with many android phones for enjoying hobby. But if you don’t like to use many, that is absolutely depends on your choice. If I do, I will be 2 year slave of new iPhone6s with enjoying 3D force touch with many accessaries.


What will be your choice if your phone has stipulate time ?

three_idiot_telecoms_of_skorea If your phone has stipulate time and it is restricted to wireless telegraph operator? And plus, if the goverment controlled it? What would you do?

This is not a fiction. Just happens to in South Korea.

There’s are three major wireless telegraph operators – SKTelecom, KTelecom and U+ – and they are sales smartphones with their slavish stipulate time in 2 or 3 years with big penalty if you want to break stipulate in earlier. And it belong to the goverment of South Korea.

Let me guess an example, if you are buying a new smartphone in South Korea.

You may walk to an Agency with determinded to use a wirless agency like KT. You wan to use an Android device. Now you will hearing very complexible arguments and contract rules from agency – You need keep service in 2 or 3 years and don’t break contract while in term of you contracted. You may support about 200 to 300 USD by new purchasement support program. But it is a big trap. really big trap. But you don’t know in that time. Now, you have sign in the contract with stipulate time in 3 years for end of slavish term.

You found many useless app already preinstalled and it can’t be hide or uninstalled! Even it doesn’t work after update via wireless telegraph operator’s store, and it is not the google app store. Everytime you will see these uknown to wehre to use apps in task screen. So you determinded change your phone to iOS, So you going back to agency office. BUT you hear this from them: ‘You can’t break your contract while in 3 years. Or Break the contract and pay back all damages for breach of contract. plus you many need pay more before than supported new purchase program.’

What? Why? …. You can’t understand but it is the real. Yes, you are a slave of them, plus the goverment of South Korea.

This won’t be a story is the tale of ‘Dan-Tong-Bub’ known as ‘Terminal distribution system improvement law’.

There’s many new models are poped out in a year in Soth Korea, specially a company that logo made a tilted blue ellipse. Each sizes, each prices, they are really made many models in a year even people aren’t know exactly how many different models are in market.

This made oversupply in real market, and these products performance been enough to use in normally in 2 or 3 years ago. Increasement of technical criterion elavated but we don’t know what it is. We just want to know OS is being upgrade? Modern games are runs on? whatever. My phone still in high price in market?

Android devices price normally not too expensive except flagship modesl of each company. Specially a tilted blue ellipse company and a half human face in red circle company. They are always making the top model of South Korea market only except Bited fruit logoed company.

Too many oversupply making low profits and value. Too many models are too. Almost 90% of one nation’s market taken with Android devices. and if their oversupply continues? absolutely used devices value will much quickly going down. and their products are only works well in South Korea because of radio frequency limitation with useless DMB.

If you have no choice to break slavish stipulate term in 3 years because you in payment in installment. And you want to keep your expensive smartphone value keep in higher price of used market? there’s only one answer – the bited fruit logoed. Their used smarphones are really keeping higher price in longest term while before new model comes out with well made personal security – really hard to break security to hack personal informations in their phone as we know.

We can’t break the law. We can’t break the goverment. We can’t resist the law. But we can buy a good smartphone in keeping long term value. And android devices will not, specailly if your personal information is much important.