The answer is: it depends. it is always individually for each smartphone.
The answer is no, if the buttons are fully perform their functions.
The answer is: it depends. For each smartphone it individually as it depends on a huge number of reasons, but does not depend on the model or firmware.
Answer: it decides the official service diagnostics company.
in another topic.
Specifications
Manufacturer : Apple
Model : iPhone SE
Year of issue : 2016
operating system : iOS 9
Capacity : 16GB, 32GB, 64GB, 128GB
Dimensions : 123.8x58.6x7.6
Weight : 113g
CPU :
- Model Apple A9 with 64-bit architecture;
- Clock frequency 1800 MHz;
- Built-in M9 motion coprocessor.
Memory :
- RAM 2048 MB
Display :
- Retina;
- Widescreen Multi-Touch display with a diagonal of 4 inches and LED backlight;
- 1136x640 pixels, 326 pixels / inch;
- Contrast 800: 1 (standard);
- Brightness up to 500 cd / m2 (standard);
- Full support for the standard sRGB;
- Oleophobic coating resistant to the appearance of fingerprints;
- Support simultaneous display of multiple languages ​​and character sets.
Camera :
- iSight 12 MP with a pixel size of 1,22Вµ;
- Live Photos;
- Autofocus and Focus Pixels technology;
- Flash True Tone;
- Panoramic (up to 63 megapixels);
- Automatic inclusion of HDR during photography;
- Exposure control;
- Serial shooting;
- Timer mode;
- Aperture Ж’ / 2.2;
- Five-lens;
- Hybrid IR filter;
- Light sensor on the rear panel;
- Protection lens sapphire glass;
- Automatic image stabilization;
- Advanced tone compression system;
- Improved noise reduction technology;
- Face recognition;
- Snap photos to the location.
Video recording :
- Record 4K video (3840x2160 pixels) with a frequency of 30 frames / s;
- Record HD-video 1080p with a frequency of 30 or 60 frames / s;
- Record 720p HD video at 30 frames per second;
- Flash True Tone;
- Support for shooting slow-motion video with a resolution of 1080p and a frequency of 120 frames / s or with a resolution of 720p and a frequency of 240 frames / s;
- Time-lapse mode with image stabilization;
- Cinematic video stabilization (1080p and 720p);
- Tracking autofocus;
- Improved noise reduction technology;
- Ability to shoot 8-megapixel photos while recording video 4K;
- Increase during playback;
- Threefold increase;
- Face recognition;
- Binding video to the place of shooting.
Touch ID
- The fingerprint identification sensor is built into the Home button.
Cellular and wireless network :
Model A1662
- LTE (1, 2, 3, 4, 5, 8, 12, 13, 17, 18, 19, 20, 25, 26, 29 ranges);
- CDMA EV-DO Rev. A (800, 1700/2100, 1900, 2100 MHz);
- UMTS / HSPA + / DC ‑ HSDPA (850, 900, 1700/2100, 1900, 2100 MHz);
- GSM / EDGE (850, 900, 1800, 1900 MHz).
Model A1723
- LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28 ranges);
- TD ‑ LTE (ranges 38, 39, 40, 41);
- TD-SCDMA 1900 (F), 2000 (A);
- CDMA EV-DO Rev. A (800, 1700/2100, 1900, 2100 MHz);
- UMTS / HSPA + / DC ‑ HSDPA (850, 900, 1700/2100, 1900, 2100 MHz);
- GSM / EDGE (850, 900, 1800, 1900 MHz).
All models:
- Wi ‑ Fi 802.11a / b / g / n / ac4;
- Bluetooth 4.2 wireless technology;
- NFC.
Audio calls :
-FaceTime audio
-Voice over LTE (VoLTE)
-Wi-Fi calling
Geolocation :
- Assisted GPS and GLONASS;
- Digital compass;
- Wi-Fi;
- Cellular;
- The function of accurate positioning iBeacon.
Sound reproduction :
- Supported audio formats: AAC (from 8 to 320 kbps), protected by AAC (for files from iTunes Store), HE-AAC, MP3 (from 8 to 320 kbps), MP3 VBR, Audible (formats 2, 3 , 4, Audible Enhanced Audio, AAX and AAX +), Apple Lossless, AIFF and WAV.
TV and video :
- AirPlay video replay; output of photos, sound and video on Apple TV (2nd generation and newer);
- Support for video replay and video output: up to 1080p via a Lightning digital AV adapter or a Lightning / VGA adapter (adapters sold separately);
- Supported video formats: H.264 video with resolution up to 4K and 30 frames per second, high profile level 4.2 with AAC-LC sound up to 160 kbps, 48 ​​kHz, stereo sound in .m4v, .mp4 and .mov formats; MPEG-4 video up to 2.5 Mbit / s, 640x480 pixels, 30 frames / s, simple profile with AAC-LC sound up to 160 kbit / s per channel, 48 kHz, stereo sound in .m4v, .mp4 and .mov formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280x720 pixels, 30 frames / s, sound in ulaw format, PCM stereo sound in avi format;
Battery :
1624 mAh
- Talk time:
up to 14 hours on the 3G network;
- When working on the Internet:
up to 12 hours on the 3G network
up to 13 hours on 4G LTE network
up to 13 hours on the Wi-Fi network;
- Video playback:
up to 13 hours;
- Audio playback:
up to 50 hours;
- In standby:
up to 10 days;
Sensors :
- Touch ID fingerprint identification sensor;
- Three-axis gyroscope;
- Accelerometer;
- Distance sensor;
- Sensor ambient light.
Sim card :
- Nano-sim