I need to reduce my NFC power; Freestyle Libre with Samsung S7 - NFC Hacking

Hello,
I am a diabetic person who uses his new phone (Samsung S7 SM-G930F) to read my sensor Freestyle Libre stucked in my arm, via the NFC antenna and check immediately my blood sugar with apps like LibreLink or Glimp. This process has saved life to me and to many people.
But my phone has too much power in its antenna NFC, that is dangerous since many users say that the antenna burns the sensor.
Is there any way to reduce the power of the mobile antenna NFC?
Thank you very much!!

Related

[Q] What's the main reason for you to choose the Sony Smartwatch 3?

In my case,
1. Battery life: I wake up at 6 and go to bed at midnight. The bigger battery, and the transreflective display gives me some peace of mind that I'll not worry that my smartwatch will die when I need it. Also, love the idea of monitoring my sleep and setting an alarm to wake me up at the ideal time (instead of being in the table recharging).
2. Square display: Although round watch faces look classy, I don't like the idea of wasting screen real state for a fancier look.
3. Android Wear: Definitely Google got it right (Unlike Samsung or Apple). A smartwatch complements the smartphone (not replace its features). Simplicity to dismiss discretely notifications, or get directions while using the smartphone for other purpose, or keeping it in your pocket whithout the hassle of picking it up every time I get another notification.
4. Display: As an Ingress player, I'm frequently outside. Sunlight can make most screens difficult to read, or waste too much energy to give maximum luminosity. Transreflective display uses the ambient light, making it perfectly readable at direct sun light and saving energy.
My reason is the mix of fitness watch for running + multimedia (music) without the phone. If that is a BIG YES, all the other features for the rest of the day are welcome but not the main reason to wear it.
For me it would be:
The builtin GPS: ability to hace mapa on the watch even without a phone, or with the phone in a bag or somewhere else with poor reception
Reflective LCD: The benefits of a color screen without the disadvantages of a backlighted one (e.g. no always on, too-bright in the dark, etc.)
microUSB port: no stupid dock that breaks/get lost easily, no proprietary magnetic charging, no fiddling required to get a USB console.
king conan said:
My reason is the mix of fitness watch for running + multimedia (music) without the phone. If that is a BIG YES, all the other features for the rest of the day are welcome but not the main reason to wear it.
Click to expand...
Click to collapse
+1
cdrshm said:
+1
Click to expand...
Click to collapse
GPS, GPS, GPS, GPS....
oh and i a regular USB port as I travel allot and dont want to lug around a stupid charger base

N7100 overheating with wifi dropout - hardware problem

I did a search and most of the Wifi problems seem to describe knox security and bootloader issues.
Here, I wish to describe/discuss what seems to be a hardware problem in my n7100 note 2.
This occurs with stock and dr. ketan rom on 4.4.2 even with wifipatch applied (technically not needed).
OS 4.4.2
boot loader: n7100ZSUFNL1 (I believe this bootloader should be ok - correct me if I'm wrong).
model GT-n7100
ISSUE
- the wifi icon doesn't turn on or wifi drops out when the system is running hot. This happened the first time after I flashed a ROM/upgraded and I thought it was a ROM issue.
- however, more recently, I have managed to keep the wifi signal absolutely stable when i open up the back cover and run a fan blowing on the back/cpu area at the top back of the phone around the camera area.
- with fan cooling => completely stable
- without fan cooling => drops out when system under load or randomly.
for some reason, omega rom had a problem for me where it kept disconnecting irrespective of the heat
I have seen discussions of our phone overheating but this seems to be a hardware problem with the wifi module.
I presume that there may be micro fractures with the wifi chip solder (seems to be a theme in electronics) that may be causing wifi problems with overheating.
This happened with an iphone 4 voice audio processing chip once for me and the "online community" had figured out a fix by taping in a "pressure mount" for the chip.
//blog.lovefone.co.uk/iphone-4-faulty-microphone-audio-chip-problem
Any suggestions on taping in a heatsink or pressure against the wifi module?
Help would be appreciated. Just adding to the knowledgebase in the community.
When Samsung adopted RoHS some range of devices plagued with badly soldered BroadCom chips. I personally know one S3 and two Note 2 (one is mine own) with all the same problem: no WiFi from time to time and likely no BT too.
I paid ~100 euros to change the main board with BC chip guaranteed working about half a year ago.
Thanks for the quick reply and confirmation.
After ordering a new midframe; playing around with screws and disassembling it a few times; it does feel like a solder joint/connection issue.
I haven't heard much feedback from the net on this problem which is why i raised it.
Others on the net have mentioned loosening the screws securing the motherboard down. I will try that as well but I presume that with a loose solder joint; overtightened screws may warp the motherboard just enough for the connection to flake out.
THanks again.
PS - if anyone else has the same problem/suspicion; please chime in.
So, in follow up.
Adding aluminum tape to the wifi chip didn't seem to work. I took it off and reseated the midframe where the antenna is located.
Still was getting dropped wifi.
Disassembled; took a small screwdriver and gently lifted the wifi contacts from the motherboard up so that it makes better contact with the midframe.
Seemed to help.
It's definitely hardware. Whether it's a problem with the WIFI chip or with the antenna; i don't know but it's somewhere along that line.
Crazy hardware gremlins

[Review] DOOGEE X5 Pro - A $85 best buy

Doogee is a relatively new Chinese company, but has no difficulty with introducing innovations onto the mobile phone market through its products. Founded in early 2013, the company is yet to really develop a big fan base, but is quickly gathering attention with its merchandise offering excellent features in its price range. Every year smartphone market presents new models better than the year before for a lower price. This trend is also followed by small companies like Doogee, which has recently come out with its X5 Pro model.
You must be wondering what makes this model so special. Well, it offers amazing features for the price of only $85 – 5.0” display, 64-bit Quad-Core processor, 2GB RAM, 16GB of internal memory, 2 cameras, 2400mAh battery and Android 5.1 Lollipop! You are interested, aren’t you? It’s OK, so am I.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
A well-recognized web site specialized in selling mobile phones, tablet computers and accessories, Pandawill, has provided a sample of the Doogee X5 Pro for testing and writing this review.
Technical specifications:
Processor: 1.0GHz Quad-Core Cortex-A53 (Mediatek MT6735, 64-bit)
Graphics chip: Mali-T720
Display: 5.0“ IPS LCD 1280x720 pixels (sensitive in 2 points simultaneously)
RAM: 2GB
Memory: 16GB ROM (~12GB user available) + microSD slot
Back Camera: 5.0Mpix (interpolated 8.0Mpix), autofocus, LED flash, video [email protected]
Front Camera: 2.0Mpix (interpolated 5.0Mpix)
Battery: 2400mAh (removable)
Connectivity: WiFi 802.11b/g/b, Bluetooth 4.0, microUSB, OTG, GPS with A-GPS
OS: Android 5.1 (Lollipop)
Dimensions: 145 x 82 x 40mm
Network: 2G – 850/900/1800/1900MHz, 3G – WCDMA 850/1900/2100MHz, 4G – FDD-LTE Bands 1/3/7/8/20
Other: Dual SIM, FM Radio
Package content​Doogee X5 along with its accessories comes in a compact box, the design of which is simple, but quite interesting. On the top there is a light-reflecting “X5 Pro” mark, while on the bottom you can see phone’s most important features. On one of the sides of the box, there is a scratch sticker hiding the product authenticity verification code.
Upon opening the box on the side, you can pull out the content of the box – phone, charger, USB cable and short manual. A protective foil is already on the phone, so its new owner doesn’t have to go through the trouble of applying it himself.
The charger is standard, with a generic shape and specifications of 5V 700mA. However, it would surely be better if the manufacturer had provided a charger of at least 1A to shorten the charging period.
The USB cable given with the phone could be used for phone-PC data transfer as well as for charging – it is not limited only to the charging capacity.
The short manual covers the basics of Android OS use, and thus will be useful only to the beginners in the Android world.
The 2400mAh battery is already inside the phone when the buyer gets it, but before he starts using it, he needs to remove the protective foil off of it, as is specified on the box.
The absence of stereo headphones from the package implies that the manufacturer wanted to lower the price as much as possible, which will not bother most of new users, since they will already have headphones of their liking.
Appearance​Doogee X5 Pro has a simple design and the model we received for the purpose of this test is completely black (there is also a black-and-white combination). It is considered to be a phone of average thickness (8.2mm), but you can “feel” it in the hand because of its weight of as much as 130 grams. The battery cover takes most of the phone’s frame, thus in a way protecting it in case of falling on one of its edges.
On the top side of the phone there are connecting ports – a micro USB port (for charging, as well as PC and peripheral devices connection) and a 3.5mm audio connector for headphones.
On the right side there are buttons for sound control and turning the screen on and off. They are very sturdy, well responsive and have a distinguishable click, which makes us think they will endure usage for long period of time.
Microphone and speaker openings are on the bottom side of the phone. As far as sound is concerned, it is very loud and reproduced in satisfactory quality, so the phone can be clearly heard even if it is carried in its own case.
The biggest part of the front side is occupied by a 5.0” display. Even though there was available space for the control buttons to be on the screen itself, the manufacturer decided to place the capacitive buttons (Menu, Home and Back) below the screen. This is a better option for some users, since the entire screen is available at all times, while others will be asking why the buttons aren’t on the screen, since it will additionally make the phone smaller. Unfortunately, capacitive buttons aren’t backlit, which makes them hard to see and use in the dark.
Above the screen you can see the front 2Mpix camera, proximity and light sensors, as well as the speaker opening. In-call sound quality is clear and loud, even in the middle of the sound control bar.
The battery cover is smooth to the touch, but covered in rubber-like plastic in order to prevent slipping and allowing better handling of the phone. Perfectionists will be bothered by the fact that the phone will constantly be covered in finger prints, and so they will have to wipe it with a cloth regularly.
In the upper section of the phone there is a 5Mpix camera, not far from the flash LED. In addition, under that exact spot the Doogee logo is discretely, but clearly visible.
The battery cover is firmly attached to the front of the phone, so we advise careful removal so as not to damage the cover holders, although it is our opinion that they are flexible enough not to break quite so easily.
Upon cover removal you can see the blue 2400mAh battery, above which there are 2 SIM slots (both Micro-SIM sized), as well as the slot for a microSD memory card capacity up to 32GB. In order to access these slots, it is necessary to remove the battery from its setting.
The SIM slots are numbered 1 and 2, but that in no way determines which of the cards will be the primary one, since the user himself can choose which card to use for calling, messaging, surfing the mobile Internet (4G!), etc.
The phone’s surface looks impressive even though this is a budget phone. Yes, there are small traces of plastic injection near microUSB port opening and 3.5mm audio port, but it is barely noticeable and in no way diminishes the beauty of the phone. It is a pity that X5 Pro is missing the notification LED, since it would eliminate the need to turn the screen on in order to check for any missing calls or text messages.
Display​Doogee X5 Pro comes with IPS 5.0” display with 720p resolution (1280x720 pixels). This makes it a very good choice for a screen of this diagonal, because the pixel density is high enough so that the image is as clear as it can be expected although there are phones with much higher resolution on today’s market. We have secretly feared that colors would seem washed out while the visibility angles would be narrow, but that is not the case at all in X5 Pro. Color intensity is fairly good, whilst image rendition stays the same until viewing in extremely sharp angles. The manufacturer states that the phone comes with Gorilla Glass display protection, but it remains untested in that aspect.
Screen reacts to the touch very well and it’s responsive in 2 points at the same time, that’s enough for most uses, including playing games. The only problem we noticed it’s that it reacts a bit unprecise when fingers are too close to each other, that makes a pinch-to-zoom gesture a bit difficult.
Back lighting can be very intense, which makes the displayed content visible even in direct sun.
Software​What is interesting is that Doogee X5 Pro comes with Android 5.1 (Lollipop) OS, which means the phone is adorned with both good hardware and optimized software. Software appearance and its functions do not differ excessively from Google source code, although there are certain additional phone setting functions offering further possibilities.
Android 5.1 has finally brought dual SIM native support, so manufacturers have no need to create their own solution to the “problem” of selecting SIM cards in lie with each situation. When a SIM-using app is run (Dialer, Messaging, Hangouts, etc.), notification menu displays the possibility to choose which SIM card will be used at that point. It is also possible to predetermine the use for each card, further simplifying the entire process.
It is possible to turn on certain gestures to facilitate phone use, such as flipping the phone onto the screen in order to silence ringing, answering a call by lifting the phone a bit more quickly, or simply switching to speakerphone and back by bringing the phone closer to the ear.
What is more, the phone has the option of turning on with a double display touch (Double-tap to Wake), sliding down on the screen while turned off in order to quickly run the camera, or writing on the screen to run apps like dialer, Internet browser, Play store, messenger, etc.
The “Visitor mode” solves the problem many have been dealing with since the appearance of mobile phones – denying access to certain parts of the phone. By activating this particular mode, you can hide call lists, SMS messages, pictures and disable modification of main screens on the phone. This is an excellent option to activate before lending your phone to a friend. However, in order to turn this option on and off, you need to enter your PIN.
Similar effect can be achieved by means of “AppLock” app, which does exactly what its name indicates – locks apps, and provides access upon entering the PIN.
Moreover, the proximity sensor also has certain phone management functions. By waving your hand above the sensor, you can scroll pictures, shuffle songs, take photos, change pages in launcher, unlock the phone and answer a call. As to how smart of an idea this is, we will let you decide.
More advanced users will like the built-in option of controlling app permissions (Permission Manager), which means that any app can be simply revoked the permission to dial, send messages, read location, access contacts, use camera, etc.
All in all, Doogee X5 Pro has left a favorable impression as far as OS and additional apps are concerned. Thanks to Android 5.1 OS, animations are beautiful and fluid, transition between apps is fast (for which large RAM memory can be credited, 2GB) and there wasn’t even an instance of unexplainable lag. With basic preinstalled apps installed, only 500MB RAM is occupied, thus leaving a lot of space for installing and multitasking between large numbers of apps.
Camera​As previously stated, Doogee X5 Pro on its back has a 5Mpix camera (interpolated to 8Mpix) with very limited possibilities, while on the front it carries a 2.0Mpix camera for video chats.
The 5Mpix camera has autofocus, LED flash and makes 2560x1920 pixel pictures without interpolation.
Camera sensor possibilities are quite poor. While colors are good in the daylight, it lacks detail even while taking photos with a steady hand. Photos seem good on the screen, but when zoomed to their original size, there is a visible lack of sharpness and “oil-on-canvass” effect. Photos of closer objects are satisfactory in sharpness, but most landscapes make you want to give up the sport. This is quite a shame, since the camera software has interesting options such as automatic photographing by lifting 2 fingers in the shot, automatized following of an object and taking its picture, recording “live” (making a 5-second long video with a photographing effect) and the Face beauty mode, which removes skin imperfections and makes you more pretty (the fare sex loves this option in Samsung phones).
Photo samples:
Battery Life​Doogee X5 Pro comes with a 2400mAh battery, which is enough capacity to allow the phone one-day autonomy with more intensive use. Seeing how the processor is economical and works on lower frequency, battery consumption is moderate. We have measured its autonomy by inserting 2 SIM cards into the phone (one in the 3G/4G mode and the other in the 2G mode) and running synthetic tests, making a few shorter phone calls (about 20 minutes in total), taking pictures outside for about an hour and a half (during which time mobile Internet was active), testing its speed of access to the 4G network, and then surfing the Internet using WiFi connection.
During all that, the screen was on for 4 hours and 30 minutes, while the phone was off the charger for 30 hours! We believe this to be an excellent score considering all this phone’s features.
Performance​Doogee X5 Pro is based on MediaTek MT6735 64-bit chipset which is increasingly present in lower-middle class models. MT6735 has a Quad-Core processor at 1GHz (988MHz, to be more precise), Mali-T720 graphic chip and 2GB of built-in RAM memory.
The processor is probably intentionally limited to lower frequency instead its maximum (1.3GHz) in order to provide a better battery autonomy, since it has proven to be quite economical and still powerful enough for most users’ needs. Judging by synthetic tests, MT6735 chipset at 1GHz frequency performs in the rank of Snapdragon 400 chipset and its Quad-Core processor, which is an excellent trait considering the price of X5 Pro phone.
It also has built-in USB OTG option, so it is possible to connect USB flash drive or USB mouse or keyboard directly to the phone using USB OTG adapter.
Obtaining GPS location on this phone is quick and precise, since it easily finds a large number of satellites and connects to most of them in 30 seconds. Therefore, it can definitely be used as GPS navigation with matching navigation software.
Benchmark tests results:
Conclusion​Doogee X5 Pro is a smart phone which has suddenly appeared on the market and attracted a lot of attention with its surreal hardware for a good price. Its IPS display with wide visibility angles and quality rendition will allow undisturbed use in all conditions, while its work speed will satisfy all less and moderately demanding users. If you want an affordable smartphone and you can look past a few smaller cons, there is no reason to be apprehensive – you should definitely take the X5 Pro model into consideration as best buy in the lower price range!
Pros:
Good quality display
Fast response
4G LTE support
Powerful speaker
Cons:
No notification LED
Capacitive buttons unlit
No gyroscope and g-sensor
Once more, big thanks to Pandawill for providing a sample device for testing.
Author: Stevan Stevanović
DOOGEE X5 Pro Smartphone Unboxing & Hands-on: https://www.youtube.com/watch?v=RbfOhhMnCoM
Great review, thanks.
Could it be possible to overclock the CPU to 1.3 GHz when the device is rooted?
I saw one review (here) that had an Antutu benchmark of around 30000. It is an early review (August 30th), so perhaps it was an early demo phone that was clocked higher?
You're welcome.
I think it can't be overclocked. Not with the stock kernel, anyway. To phone runs cool, even with the maximum CPU load (about 30C), so I do think the CPU has potential to withstand OC to ~1.2GHz, but there isn't a way at the moment.
As I detailed in this now closed thread, I am unable to get this phone to operate at anything faster than 2G network speeds. The specs of this phone would appear to keep it out of the 4G (or even 3G) range for AT&T in the USA, and indeed, most every other USA carrier I'm aware of. Such a sadness because this is really a nice phone at such a good price.
Excellent phone
Ive had this phone for about 3 weeks now.
Its an awesome phone for the money.
Im not a fan of how branded companies charge huge profit margins like HTC and samsung.
This phone has all I need.
It has 3G and 4G LTE which work great in my country (New Zealand).
In fact the antenna is very strong compared to my old samsung.
The camera is fine for me at 5MP, the autofocus works well and ive been able to take some really nice pics, better than the ones in the review above. Closeups are excellent. If you hold down the shutter button you get something like 6 to 7 shots per second which are then saved as a progression of pics that are then viewable in gallery as a kind of gif animation with each frame been able to be used as a photo. Theres tons of features built in. I really like that no tweaking is needed out of the box.
I installed Hola launcher as I just like its style, its faster than stock launcher and organizes apps into easy folders and it has built in weather and intuitive interface that works really well with this phone.
Ive always bought phones with hardware buttons. I cant stand phones with on screen buttons. It just takes away from everything.
So much nicer having real buttons.
Im happy there is no notification LED. This used to annoy me on my samsung and my smart 4 especially at night time I dont like any flashing LEDS in my room when im sleeping.
Double tap to wake up is nice and also useful when i have it on my car bracket.
Only cons so far are that OTG doesnt seem to work currently. Im guessing the phone needs to be rooted to use that feature and as others have noted there doesnt appear to be an easy root method as yet.
its a shame it doesnt have gyro because my google cardboard isnt much use, but i guess i can still watch 3d movies with it.
Hey.. good news.. looks like KIngroot have updated their app because I just opened kingroot and it says 92 requests received and a strategy is been worked out, which is better than last week. I will try to root manually anyway today. Id really like OTG access.
awakekiwi said:
Only cons so far are that OTG doesnt seem to work currently. Im guessing the phone needs to be rooted to use that feature and as others have noted there doesnt appear to be an easy root method as yet.
its a shame it doesnt have gyro because my google cardboard isnt much use, but i guess i can still watch 3d movies with it.
Hey.. good news.. looks like KIngroot have updated their app because I just opened kingroot and it says 92 requests received and a strategy is been worked out, which is better than last week. I will try to root manually anyway today. Id really like OTG access.
Click to expand...
Click to collapse
OTG works fine for me. I'm just using a bog-standard OTG adapter and a FAT32-formatted USB thumbdrive.
I'm still looking forward to a working root though.
Tonto87 said:
OTG works fine for me. I'm just using a bog-standard OTG adapter and a FAT32-formatted USB thumbdrive.
I'm still looking forward to a working root though.
Click to expand...
Click to collapse
Ok maybe my home made OTG cable is the problem.. i just used my data cable with a female to female adaptor on the end.. mayb e that doesnt actually work?
[FIXED] used a correct OTG cable and its all working great! no need to root this phone for any reason now!
I don't know why the rooting thread has been locked, but rooting and installing TWRP is really easy:
Follow this: http://forum.xda-developers.com/showpost.php?p=63173937&postcount=9
Download TWRP here: http://forum.xda-developers.com/showpost.php?p=63232390&postcount=26
Flash TWRP recovery (step 3 onwards): http://forum.xda-developers.com/showpost.php?p=63263496&postcount=39
I used Rashr to flash TWRP recovery.
Woof
Doesn't work if you have already updated via wireless update.
Phone won't accept the update.zip I you've updated already.
Only via factory reset first. That's our problem.
I stick with a R5 because of rooting problems above that Version.
Ok
OK good to know.. Don't need root at this stage as otg is working now.. Phones still fast so no major advnatge to root for me at present..
awakekiwi said:
Doesn't work if you have already updated via wireless update.
Phone won't accept the update.zip I you've updated already.
Only via factory reset first. That's our problem.
Click to expand...
Click to collapse
Really?
I'm on DOOGEE-X5pro-Android5.1-R08-2015.10.26 and root worked fine.
I had two updates applied from when I received my phone.
Good news, did you had to root again after update?
I rooted for the first time after applying all the updates. Only recently made sense of the rooting thread! Don't know if it'll create problems if there's another update, but I'll cross that bridge when I come to it.
Sent from my X5pro using Tapatalk
ok thanks maybe i will try again...
Tonto87 said:
I rooted for the first time after applying all the updates. Only recently made sense of the rooting thread! Don't know if it'll create problems if there's another update, but I'll cross that bridge when I come to it.
Sent from my X5pro using Tapatalk
Click to expand...
Click to collapse
How did you do to root?
I have R08-2015.10.26 but I am unable to root (install supersu)
I followed the procedure of wireless update → select update.zip and click ok. When the phone reboot, it start the install but stops and show "error".
smshare said:
How did you do to root?
I have R08-2015.10.26 but I am unable to root (install supersu)
I followed the procedure of wireless update → select update.zip and click ok. When the phone reboot, it start the install but stops and show "error".
Click to expand...
Click to collapse
See the method in a previous post in this thread. I don't know why you get an error. Did you follow the method to the letter and use the SuperSU from the Mega link?
Sent from my X5pro using Tapatalk
yep
yepn same problem for me.. used mega link file and it just says error a third of the way through.. seems a common problem for some users...
Tonto87 said:
See the method in a previous post in this thread. I don't know why you get an error. Did you follow the method to the letter and use the SuperSU from the Mega link?
Sent from my X5pro using Tapatalk
Click to expand...
Click to collapse
Since there is no answer deleted .

Zenfone 3 Deluixe 5.7 owners - please confirm?

Conflicting reports in regards to NFC on the higher-end Deluxe models. GSM Arena reports it's available, PDAdb, which i believe is more reliable doesn't even mention 'NFC'.
I believe this VERY common feature has been 'avoided' in this phone, absolutely foolish by ASUS as it's keeping me away from this phone. Can someone please confirm? Anyone know why this decision was made despite the fact they have the 5.5", 5.7" deluxe variants and the ULTRA, which isn't much better?
Thanks
RoOSTA
It is available BUT it is in the very top of the phone.
Most phones use the battery and have NFC centered around the middle of the back. The ASUS Zenfone 3 deluxe, and the ZTE Axon 7, have it at the top of the phone, around where the speaker is located.
I don't know WHY it was put there but I eventually found it with a bit of hair pulling...
Somethings need to be the top part of the back but you can also use the very top of the phone too. A little annoying as this isn't very well explained...
NFC sensor is on the front near the top of the screen.
Yes, it have NFC, in te top of the phone near the call's speaker
I used it all days with some nfc tags.
An awkward location to put the NFC. You cannot see the screen when it is contacting the other device.
ultramag69 said:
It is available BUT it is in the very top of the phone.
Most phones use the battery and have NFC centered around the middle of the back. The ASUS Zenfone 3 deluxe, and the ZTE Axon 7, have it at the top of the phone, around where the speaker is located.
I don't know WHY it was put there but I eventually found it with a bit of hair pulling...
Somethings need to be the top part of the back but you can also use the very top of the phone too. A little annoying as this isn't very well explained...
Click to expand...
Click to collapse
@wshek @jonasiesta
Thanks guys. Can you show me a quick NFC tag scan in a short video please?
roosta said:
@[email protected]
Thanks guys. Can you show me a quick NFC tag scan in a short video please?
Click to expand...
Click to collapse
Hey, so I sometimes get the NFC to work (unlike my zenfone 2) bit when I tap to send / beam a picture it goes to Google play and tries to install the gallery app. Anyone know how to send the picture instead?
jmoricone said:
Hey, so I sometimes get the NFC to work (unlike my zenfone 2) bit when I tap to send / beam a picture it goes to Google play and tries to install the gallery app. Anyone know how to send the picture instead?
Click to expand...
Click to collapse
You "sometimes get it to work" ? Pretty crap phone if it doesn't work as intended...
roosta said:
You "sometimes get it to work" ? Pretty crap phone if it doesn't work as intended...
Click to expand...
Click to collapse
Senior member of High School
I get NCF to work.. Did not realize the chip was in a different location than model 2. Model 2 is rooted and can send pics via beam with no problem. Version 3 when I try to beam tries to install the app. Don't need wise ass comments. Joined XDA for "real" advice. If I need bull**** comments, remarks, etc I would have just posted on ****ty websites. Real question for real answers. If you have nothing else to do shut the **** up

			
				
The NFC is located at the top of the phone. You could "image" it's using the 3.5mm jack as the center of antenna. (Although it's actually there..)
I use the NFC function almost daily for payment (for convenience store purchase as well as subway ride) and it works 100% of time. (never second time touch) The way I use it is screen facing me, only the very top of phone (basically where the 3.5mm jack is located) is touching the payment terminal reception pad.
Most of the payment terminal will even accept the phone lying flat, LCD up as long as the 3.5mm jack is located near center of the payment terminal's reception pad.
The reason why NFC is located at top of phone is that the back of this phone is made by one piece of metal. NFC signal will have trouble pass this metal barrier. Beside, I found it's easier to use as NFC is at top since can hold the phone 45 degrees (LCD facing me) instead stick the back of the phone flat to the payment terminal when making payment.
Also, the screen is not needed to be on when making payment (YMMV, may depend on APP). The sensitivity of NFC is even better then my cashless credit card. (I tested both at same terminal).
lssong99 said:
The NFC is located at the top of the phone. You could "image" it's using the 3.5mm jack as the center of antenna. (Although it's actually there..)
I use the NFC function almost daily for payment (for convenience store purchase as well as subway ride) and it works 100% of time. (never second time touch) The way I use it is screen facing me, only the very top of phone (basically where the 3.5mm jack is located) is touching the payment terminal reception pad.
Most of the payment terminal will even accept the phone lying flat, LCD up as long as the 3.5mm jack is located near center of the payment terminal's reception pad.
The reason why NFC is located at top of phone is that the back of this phone is made by one piece of metal. NFC signal will have trouble pass this metal barrier. Beside, I found it's easier to use as NFC is at top since can hold the phone 45 degrees (LCD facing me) instead stick the back of the phone flat to the payment terminal when making payment.
Also, the screen is not needed to be on when making payment (YMMV, may depend on APP). The sensitivity of NFC is even better then my cashless credit card. (I tested both at same terminal).
Click to expand...
Click to collapse
Thanks for the info. One of the downsides of the body design I guess... Good to see its working for you and there's a way around it. I would've gone for this phone had root been available on it by now. Lack of IR is something I don't use all the time, but still find it important and am using on my V20...
RoOSTA

Question Any software solution to proximity sensor failure on calls?

Hello,
Before buying the Poco F3 I've never had a phone with this system without a proximity sensor, and the truth is that after using the phone for two weeks I'm sick of it. I'm even thinking of selling the phone.
Due to the fact that the problem is related to the lack of appropriate hardware, I think that a possible solution for phone calls could be that the screen would automatically lock when answering calls, and then to manipulate the screen again it would be necessary to unlock a via a slider, pattern, fingerprint, or facial recognition.
Do you know any solution or calling app that allows to do something about this? Root wouldn't be a problem.
Thank you.
I tried the recalibration but did not work. Also I am using a new tempered glass screen protector but no luck. It would be interesting to hear from someone who is using a custom ROM if the problem is solved there
you want poco f3 to go screensaver mode/ blackscreen when your calling/talking to someone?
Unfortunately, they have to use palm rejection in conjunction with the camera to get it to work but it will never be as good... I know that feeling bro... hate how when listening to audios on Instagram or whatsapp this **** doesn't even work at all
I checked the proximity sensor test in CIT and it is very inconsistent for me too. I guess this device has an ultrasonic proximity sensor instead of the infrared sensor that is generally used, and it hasn't been calibrated correctly. Maybe future updates could fix it hopefully
i use this app name "proximity service" when you cover the proximity sensor near front camera the screen would turn off while the running apps does not get shutdown i use it to stream call of duty without my phone screen running so phone don't get overheat
so is the proximity sensor actually broken on everyones device. what the hell something as simple as that they messed up.
sam00561 said:
so is the proximity sensor actually broken on everyones device. what the hell something as simple as that they messed up.
Click to expand...
Click to collapse
provably intentional they sacrifice some hardware to fit its price range this explain why the phone cost $200 on some country while other have it at $400
business my friend lol
ineedroot69 said:
provably intentional they sacrifice some hardware to fit its price range this explain why the phone cost $200 on some country while other have it at $400
business my friend lol
Click to expand...
Click to collapse
I think proximity sensor is an essential part of a phone during they haven't left it out. Must be software bug.
As far I know, this phone don't have any proximity sensor, I guess that this is because design reasons, don't think that the proximity sensor hardware cost more thant cents. The phone uses an ultrasonic "sensor" combined with the gyroscope, because of that, the sensor only works (when it works) with the phone in vertical.
For Whatsapp, instagram or other audios I don't think there is a solution for this, even with future updates, since the main problem is the lack of hardware and isn't possible to modify the apps.
I thought that a "solution" for phone calls could be that if when answering calls the touchscreen locks automatically (even if the sensor malfunctions and don't turn off the screen), and for unlock a slider on screen or something similar was necessary, could be a solution for misstouching the touchscreen with the face. Even using screensaver mode/blackscreen for this purpose could be a solution, but I can't figure out if this is possible with some other third party telephone app.
Are proximity sensors needed?
I am thinking about buying this phone, but this concerns me.
CoolGuyOnTheInternet said:
Are proximity sensors needed?
I am thinking about buying this phone, but this concerns me.
Click to expand...
Click to collapse
I already bought it and found out about this sensor issue after purchase the phone is on its way and i am kind of regretting the purchase because sensor is quite important so that the screen can go off when the phone is near your ear and also for some reason when playing voice note on whats app people are saying the screen turns off and doesnt come back on which is a huge flaw in my opinion. I cant think how this could possibly be fixed without the option of a physical IR proximity sensor.
sam00561 said:
I already bought it and found out about this sensor issue after purchase the phone is on its way and i am kind of regretting the purchase because sensor is quite important so that the screen can go off when the phone is near your ear and also for some reason when playing voice note on whats app people are saying the screen turns off and doesnt come back on which is a huge flaw in my opinion. I cant think how this could possibly be fixed without the option of a physical IR proximity sensor.
Click to expand...
Click to collapse
Dang, I wonder if software can fix it?
CoolGuyOnTheInternet said:
Dang, I wonder if software ca
Click to expand...
Click to collapse
CoolGuyOnTheInternet said:
Dang, I wonder if software can fix it?
Click to expand...
Click to collapse
i really need to know this too. Have you got the phone yet
sam00561 said:
i really need to know this too. Have you got the phone yet
Click to expand...
Click to collapse
No, I have not ordered it yes since I am in Canada.
CoolGuyOnTheInternet said:
No, I have not ordered it yes since I am in Canada.
Click to expand...
Click to collapse
Ok maybe Hold off a while until more is known
I am also experiencing this same issue. Due to this, I had sold my previous device Mi 11Lite to a friend of mine since he isn't bothered about the issue. Now in Poco F3, I am facing this issue. Sometimes it gets off and sometimes it doesn't. Initially, I first experience this issue in Redmi Note 9S but then the same issue arises in Mi 11 Lite. But in Poco F3 it does more frequently then my previous devices.
I think it's due to wired location of the proximity sensor which controls it in these thin bezels devices since the earphone grill is too small. Its driver or software should be tweaked by developers or Xiaomi in sort of patch or update.
If there is any fix or workaround for this then kindly share since it's very annoying especially listening to WhatsApp messages is a pain in the ass.
Also my f3 when I make a call and phone is upright and my face is facing it then the screen goes off. This does not happen when the phone is lying down
sam00561 said:
Also my f3 when I make a call and phone is upright and my face is facing it then the screen goes off. This does not happen when the phone is lying down
Click to expand...
Click to collapse
i thought that what supposed to happen? also forcing your proximity sensor to "always run" and detect if your phone put down on table lying down and turn off screen would eat more battery
ineedroot69 said:
i thought that what supposed to happen? also forcing your proximity sensor to "always run" and detect if your phone put down on table lying down and turn off screen would eat more battery
Click to expand...
Click to collapse
Yes, for example when you're lying on the bed or the couch and want to attend phone calls and hear whatsapp audios.

Categories

Resources