I will tech you How To Hard Reset your Nokia Lumnia 520 whenever you want to delete all your files. But before that let us take a look at its specifications.
| GENERAL | 2G Network | GSM 850 / 900 / 1800 / 1900 - all versions |
|---|---|---|
| 3G Network | HSDPA 900 / 2100 - RM-914 | |
| HSDPA 850 / 1900 / 2100 - RM-915 | ||
| HSDPA 850 / 1700 / 1900 / 2100 - RM-917 | ||
| SIM | Micro-SIM | |
| Announced | 2013, February | |
| Status | Available. Released 2013, April |
| BODY | Dimensions | 119.9 x 64 x 9.9 mm, 75.7 cc (4.72 x 2.52 x 0.39 in) |
|---|---|---|
| Weight | 124 g (4.37 oz) |
| DISPLAY | Type | IPS LCD capacitive touchscreen, 16M colors |
|---|---|---|
| Size | 480 x 800 pixels, 4.0 inches (~233 ppi pixel density) | |
| Multitouch | Yes | |
| Protection | Scratch-resistant glass |
| SOUND | Alert types | Vibration; MP3, WAV ringtones |
|---|---|---|
| Loudspeaker | Yes | |
| 3.5mm jack | Yes |
| MEMORY | Card slot | microSD, up to 64 GB |
|---|---|---|
| Internal | 8 GB, 512 MB RAM |
| DATA | GPRS | Class B |
|---|---|---|
| EDGE | Up to 236.8 kbps | |
| Speed | HSDPA, 21.1 Mbps; HSUPA, 5.76 Mbps | |
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | |
| Bluetooth | v4.0, A2DP, LE | |
| USB | microUSB v2.0 |
| CAMERA | Primary | 5 MP, 2592 x 1936 pixels, autofocus, check quality |
|---|---|---|
| Features | 1/4'' sensor size, geo-tagging | |
| Video | 720p@30fps, check quality | |
| Secondary | No |
| FEATURES | OS | Microsoft Windows Phone 8, upgradeable to v8.1 |
|---|---|---|
| Chipset | Qualcomm MSM8227 | |
| CPU | Dual-core 1 GHz | |
| GPU | Adreno 305 | |
| Sensors | Accelerometer, proximity | |
| Messaging | SMS (threaded view), MMS, Email, Push Email, IM | |
| Browser | HTML5 | |
| Radio | FM Radio | |
| GPS | Yes, with A-GPS, GLONASS | |
| Java | No | |
| Colors | Yellow, red, cyan, white/black | |
| - SNS integration - Active noise cancellation with dedicated mic - MP3/WAV/eAAC+/WMA player - MP4/H.264/H.263/WMV player - 7GB free SkyDrive storage - Document viewer - Video/photo editor - Voice memo/dial/commands - Predictive text input |
| BATTERY | Li-Ion 1430 mAh battery (BL-5J) | |
|---|---|---|
| Stand-by | (2G) / Up to 360 h (3G) | |
| Talk time | Up to 14 h 40 min (2G) / Up to 9 h 40 min (3G) | |
| Music play | Up to 61 h |
| MISC | SAR US | 0.77 W/kg (head) |
|---|---|---|
| SAR EU | 1.09 W/kg (head) | |
| Price group |  |
| TESTS | Display | Contrast ratio: 834:1 (nominal) / 1.161:1 (sunlight) |
|---|---|---|
| Camera | Photo / Video | |
| Loudspeaker | Voice 68dB / Noise 69dB / Ring 66dB | |
| Audio quality | Noise -82.3dB / Crosstalk -81.8dB | |
| Battery life |
SOURCE: gsmarena How To Hard Reset Nokia Lumnia 520
1. Turn off the phone.
2. Press and hold the Volume down and connect the charger or the USB cable with PC, for about 8 seconds, you will see an exclamation mark (!) on the screen. Note: If you do not press any of the following keys, then the phone wp8 will starts boot normally.
Then press the keys in this exact order:
1. Volume up
2. Volume down
3. Power
4. Volume down
