Oukitel K4000 weak point: back plastic assy.

  A week ago, I dropped K4000 in Marshal shop in Las Vegas. My K4000 protect shell has broken but K4000 itself was looks OK. But after came back to South Korea, I found cracks in inner plastic case while changing SIM. So I teardown cover.

 Middle metal frame was looks well made in price, but plastic cover was not. Each screw hole was damaged or going broken. It was marked ABS+PC, but seems just ABS or cheap plastic.

 Maybe dropping impact harmed each screw assemble parts, but I don't understand they shown nail down with K4000 screen, or dropping test for about 2 meters.
 Actually K4000 is too weak in back side. I know it could be replaced, but there's no serive office in South Korea. Maybe I could buy new one again in charge price of service.
 But it was really disappointed issue for expecting really powerful strong durability as their slogan.


Beware a seller - Vifocal in AliExpress.

 A month and more days ago, I bought Ulefone Paris screen protect glasses from many different sellers in AliExpress.
 But every glasses was not fit on Ulefone Paris and they are refunded except shipping fee, but one seller made trouble with me, Shop name was Vifocal.

 To make it refunded, I send pictures to seller with these:

 Inner glass was original bundle Ulefone screen protector, and bigger glass is Vifocal glass - and it does not fit on Ulefone Paris as like following reason.
 Ulefone Paris front glass is not flat, each edge rounded as like iPhone6 series, so protect glass must be smaller than real surface area. But this bad glass is not for real fittable surface, just made for whole area size, so glass not fitted on safety.

 Actually even bundle glass is not so good for Paris, but this seller's glass is useless. Problem was belong to their slogan - "Ulefone Original Glass". It was totally not an original glass and I was bought these similar fake originals before - and they are all refunded because their fraud sales by AliExpress.

 But Vifocal - the bad ass - is not accepted their fraud sales. But I won with AliExpress problem solving team. You could read what I conversation with seller in bellow images (Captured whole messages)

 If you like to buy new screen protect glass for Uefone Paris, check below image to what is really fits on your glass surface.

 Specially don't buy anything from Vifocal, they are never good seller - don't understand what they are did bad.


Prepare for a new review, Ulefone Paris.

 I was really interested in this iPhone6 like smartphone since it published to on pre-sale item on AlieExpress.

 Ulefone "Paris" seems to a downgraded model of "Be Touch 2", and it also looks like iPhone6, too. but obviously it is not an iPhone6 or 6s. An android phone of chinese company "Ulefone".

 "Paris" also CNC manufactured for metal middle frame as like iPhone6, and bottom sided mic and speaker is similar. It's really nice design for not like other Android phones to losing or modulating loud speaker on flat place with putted on there.

 But there's no hole for micro USB port like Apple's lightning, it's different from iPhone. It's just same-like in really good price for middle performance smartphone.

 "Paris" placed micro USB port on upper side with 3.5m/m headphone jack. It may a weak point for resist rain drop to me. Just relieved for it's not too close charging port and headphone jack like Doogee X5 Pro. So I don't need to worry for using thick charging cable head with thick headphone head end.

 This phone has dettachabled batteries, double micro SIM slots with external micro SDXC slot up to 128GB. Escpecially thickness is really thin as like iPhone, so maybe its rear camera module need more thicker than others, but its design was not bad, actually looks nice with metal bezel.

 I'd like these touching navigation, "Paris" applied breathe LED on navigation touch area, so you may see white LED on home with each side for menu and back. Android signal LED placed on upper be side of ear speaker. That indicates charging state, notifies of Android.
 Mediatek CPU MT6753 has 8 cores running at 1.3GHz with Mali-T720 GPU. "Paris" has bright 5" HD IPS LCD with On cell technology for sensitive touch. 720p resolution is much enough for 5" size of this, and comfort to playing game or watching videos except using for HMD.
 Battery capacity is 2250mAh of SONY, Omni vision camera modules each mounted on 5MP for front, 13MP for rear. Not so bad for image quality, but it seems to still be a problem in Mediatek ISP in low light.

 Now I am preaparing write a review for this, and hope to coming up soon.


A simple review of Siswoo Longbow C55.

 Siswoo Longbow C55 smartphone is a product from China, and I bought it from Ali-Express, insterest of after Doogee X5 Pro.

 This phone has 5.5" large IPS LCD and 5 touching points, 1280x720p HD resolution. It is little bit low for 5.5" as detailed view as like comics or images. CPU is Mediatek 8 cores series of MT6753. 8 cores of 64bit ARM Cortex-A53 series. Built in Android is runs on 64bit native, and some apps are acquires 64bit additional package like Antutu bechmark.

  DDR3 2GB memory and 16GB NAND flash (maybe MLC eMMC) is enough to install most of light apps, and it expands for external microSDXC card. If you put on device, C55 Android OS automatically mount it to default sdcard0 and built in filesystem mounts as sdcard1. User could be set default storage to "Phone", but it actually not work. So I recommend to use good SDXC for default filesystem with FAT32. C55 doesn't support exFAT, so don't format any sdcard if its capacity over than 32GB. exFAT not be recognized, and it will be need to formatted in FAT32.


  • Large display. 5.5" size is much bigger.
  • Light weight even it has 5.5" LCD
  • Performance is really nice for using it to game device.
  • Built in BesAudio engine exapnds hearing experience. But not for Hi-Fi.
  • Good voice call quality.
  • 3300mAh replaceable battery.
  • 3G/LTE works well, WiFi also, and supports 5GHz.
  • IrDA supported: Rx/Tx works well.
  • Built in FM radio.
  • OTG.
  • Dual micro SIM slots.
  • External mico SD slot up to 128GB (not sure, my SDXC is 64GB)
  • Supporting loseless Bluetooth audio transfer.
  • Supporting App locker, App permission, App auto launcher disable.
  • Front LED light on 5MP camera.
  • Acceptable 13MP rear camera.
  • Fast GPS responsibility.
  • PRICE is KING. Just average of 123 USD on Ali-Express.
  • 2GB DDR3 (works on 3.5GB/sec) and 16GB internal flash.
  • 64bit version of Android 5.1 (not sure memory leakage fixed)


  • 1280x720 HD resolution is not enough detail for 5.5" ...
  • Not good view angle even it has IPS LCD.
  • basically DEBUG mode turn on : You must turn it off if you are first user.
  • No NFC.
  • Useless HotKnot.
  • Old school navigation icons. 
  • No navigation button light.
  • Loud speaker place back bottom side.
  • Rear camera flash is not dual, it's little bit weak than modern Android devices.
  • Battery exhaustion little fast (in my case) than Doogee X5 Pro, same like LG G3.
  • Strange launcher(home) page alignment. Default page is 2, not 1.
  • Sometimes GPS has error in 1, 2 seconds while stopped on road.

 Especially memory performance was nice. And eMMC also good in price, writing speed over 25MB/sec, and reading is over 60MB/sec. I don't this this smartphone is like as bought on 120 USD.

 I recommend this for people who don't like waste on Android phones, or need phone for office calls, and need economic phablet.
 It's a nice phablet for price, and acceptable performance for most of 3D games. 8 cores will make your multiple apps working in smoothely, especially multiple downloading with fast SDXC card.
 Conclusion is really nice phablet in 120 USD if you don't trust Chinese malware or spyware and backdoor. (It hasn't like those as my test)

A simple review of Doogee X5 Pro.

 I had experience of Doogee X5 Pro in term of a month, and writing final conclusion in here refer to my other blogs. You could be check these URLs.

(Korean) http://rageworx.tistory.com/1493
(English) http://rageworx.iptime.org/?s=Doogee+X5

 Other english blog may not always on line because it runs on my old Android device. So I recommend to read this final review instead other english blog.

 Doogee X5 Pro is not a like of high performanced Android device. It has a CPU of mediatek with ARM Cortex-A53, contains 4 cores in 64bit @ maximum 1GHz. Model labelled as MT6735P.

 GPU embedded Mali-T720 but there's nothing detailed information about how it works on fast in frequency. It is just compromise for enjoying simple 3D graphics game in maximum playable to Need For Speed - Most wanted.

 Total performance of Antutu Bench was about 20000 scored in 32bit.

 I don't believe this score definitely describes its all performance, It really feels better than my LG G3 in normal life. There's nothing like laggy in default system UI even it after ran heavy memory acquired app.

 Actually internal DDR3 memory is not so best performanced, and maybe it is just running on under 233MHz in real clock. (so it runs as like DDR3-PC1866)  It is enough to doing anything what to do except really heavy graphic game like "In Fear I Trust".

 Specially loud speak place on the bottom.

 It makes loud speaker not blocked when this phone put on flat like your desk. Output quality is not so nice like iPhone or expensive devices.

 Charging port place on top side with 3.5pi headphone. It seems not a good choice for comfort design, but I don't expect it for its economic price.


  • Bright & Sharp IPS LCD in size of 5" (1280x720p HD res.)
  • Long battery life (than similar models in capacity of 2200mAh)
  • Smooth video play in H.264 w/ 720p (1080p seems OK.)
  • Enough to enjoying music with default player, but not for Hi-Fi quality.
  • Default built in EQ, Sound exapnsion. (more loudy, more bass)
  • Built in app permission, auto run block, app lock.
  • Good radio for 3G,LTE,Wi-Fi
  • No need to worry about built-in malware or backdoor.
  • PRICE under 90 USD.


  • lack of OTG: You shouldn't connect USB stick or gamepad.
  • Only 2 multi touch points on screen.
  • Vertical reflecting on LCD touch sensor.
  • Too sensible touch: It's little to hard typing keyboard in fast speed.
  • micoSD mounts on default file system as sdcard0.
  • Some service app automatically not activates if intelligence battery function turned on.
  • Default lancher app is not useful. Recommend to change it to other.
  • Camera? It's just for cheappy film camera. Don't except on this.
 Actually it still on my hand for office phone calls. It's reallt comfort for reading email and News on my right hand as like my iPhone4 and 5. Especially IPS LCD is really nice to watch video and battery performance is really better than my LG G3 even it has a third of 3000mAh.
 It's a really nice phone if you are looking for smart phone for price under 90 USD with 2GB memory with 16GB NAND flash, and plus supports external micor SD card slot. Plus more it support most of LTE in the world except china FDD-LTE.