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SIM lock - definition

SIM card can be locked using two different codes, one is known as PIN (Personal Identification Number) code and another one is known as PUK (Personal Unlocking Key) code. If a user sets any of these security codes and forgets afterwards then it is more likely unable to get back to working state until or unless user provides correct PIN/PUK codes. Every unique SIM card have unique PIN or PUK number. Things to be remembered that, after locking a SIM card using either any of them, if you try unlocking the SIM suing wrong PIN/PUK codes multiple times, could be more than 3/5/10 (depends on the carrier), then SIM card may get permanently blocked and under no circumstances it can be retrieved again without replacing the card. In that case you’ll lose all the stored information inside the SIM card.

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2G|3.5mm Audio Jack|3G|4G|5G|802.11|1G|4K|802.11a|802.11ac|802.11b|802.11g|802.11n|

A

B

C

D

E

EDGE (Enhanced Data for Global Evolution)|EGPRS|Email client|Emoji|EMS (Enhanced Message Service)|eSIM|External Antenna Jack|External Display|EV-DO|Exchangeable covers|EDR (Enhanced Data Rate)|EGSM (Extended GSM)|EV-DV|Extended Battery|Ethernet|

F

Feature Phone|Firefox OS|Flight mode|FM Radio|FOTA (Firmware Over-The-Air)|FPS (Frames Per Second)|Frame Error Rate|Frequency|FTP (File Transfer Protocol)|Flash Memory|Fixed-focus|FM Transmitter|Flip-down phone|Femtocell|Firmware|Form factor|Fast Charge|Face ID|FCC (Federal Communications Commission)|

G

GB (Gigabyte)|Gbps (Gigabits per second)|Geo-tag|GPRS|GPS (Global Positioning System)|GPU (Graphics Processing Unit)|Gyroscope|GSM|Galileo (Global Navigation Satellite System)|gpsONE|gpsOneXTRA Assistance technology|GLONASS|

H

Handwriting recognition|Hot Spot|Hot Swap|Hz (Hertz)|Haptics|Half-QWERTY keyboard layout|Hexa-core|H.263|HEVC|HyperOS|

I

IMEI (International Mobile Equipment Identity)|IP Ratings|IMAP (Internet Message Access Protocol)|Image Signal Processor (ISP)|Inductive Charging|IP (Internet Protocol)|IR Blaster|IP69K|Immersive Audio|

K

Key Guard|KB (Kilobyte)|Kbps (Kilobits per second)|Key Lock Switch|

L

Lock code|Loudspeaker|Laptop Computer|LTE|Launcher|Lightning Cable|Lithium Ion|Landline|LCD|LED|

M

N

Numeric keypad|NFC (Near Field Communication)|

O

OTG|OTA (Over-The-Air)|Optical Zoom|OS (Operating System)|OEM|Oryon CPU|

P

Phonebook|Port|Predictive text input|PTT (Push-To-Talk)|PUK Code (Personal Unlock Key)|Polyphonic ringtones|Pixel density (Pixels Per Inch)|Pixel|PIN code (Personal Identification Number)|POP3 (Post Office Protocol)|Phone Physical Attributes|Phone Life Cycle|Percentile rank|Personal Assistant|Power Bank|PPI|Privacy Screen Protector|Proximity Sensor|Passive Noise Cancellation|

Q

QWERTY keyboard layout|Quad-band|Quick Charge|Qi Wireless|Quad Core|

R

RAM (Random-Access Memory)|Ringtone|ROM (Read-Only Memory)|Roaming|Ringing profiles|Ringer ID|Resistive touchscreen|Resolution|Ruggedized (Rugged)|RSS (Rich Site Summary)|RS-MMC (Reduced-Size Multi Media Card)|Rechargeable Battery Types|RDS (Radio Data System)|RBDS (Radio Broadcast Data System)|RFID|Root|Refresh Rate|Reverse Charging|

S

T

U

UFS|UI (User Interface)|UIQ|UMA|UMTS|Unlocked phone|Upload|UPnP (Universal Plug and Play)|USB (Universal Serial Bus)|USB On-The-Go|USIM|UX|Ultra-Wide Camera|USB Type-C or USB-C|User ID|Uptime|Username|User-Friendly|Unified Memory (Unified Memory Architecture - UMA)|

V

VGA (Video Graphics Array)|Video call|Video Codec|Voice dialing|Voice mail|Voice memo|VoIP (Voice over Internet Protocol)|VPN (Virtual Private Network)|Vapor Chamber Cooling (VC Cooling)|Virtual Proximity Sensing|Virtual RAM|

W

WAP (Wireless Application protocol)|watchOS|WCDMA(Wideband Code Division Multiple Access)|Wear OS|Wearable Technology|webOS|Wi-Fi|Windows Mobile|Windows Phone OS|Wireless email|WLAN|WMV (Windows Media Video)|Wi-Fi Assistant|Widget|Wireless|Wired|Widevine L1|

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