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The iPhone, developed by Apple Inc., is a line of smartphones that combine a mobile phone, digital camera, personal computer, and music player into one device. Introduced by then-CEO Steve Jobs on January 9, 2007, the iPhone revolutionized the mobile phone industry with its multi-touch interface and lack of physical keyboard.
Apple mostly uses this ID to identify the device on their services, such as Apple ID and iCloud. This also holds the Find My Activation Lock status. Starting from iOS 11, Apple's verification server will check the device's UDID before it could be set up. If the device's UDID is malformed or not present in Apple's database, the device cannot be ...
The Marketing Part Number (MPN) is code that Apple Inc. uses to classify all of its items in a unique way. An MPN can be used to identify a particular configuration of Apple hardware. [ 1 ] MPNs are additionally referred to by Apple as order numbers, and part numbers, and model numbers, but are distinct from Apple's "A number" format of model ...
Model FCC id Carriers/region CDMA bands GSM bands UMTS bands LTE bands Notes A1428, serial number ending with FH19, FH1C, FH1D, FH1F, FH1G, FH1H [79] BCG‑E2599A T-Mobile US, AT&T Mobility, and other GSM carriers in North America [80] N/A Quad 850, 900, 1700, 1900, 2100 [81] 2/4/5/17 [80] Tap "Settings > General > About" to check serial number
This timeline of Apple products is a list of all computers, phones, tablets, wearables, and other products made by Apple Inc. This list is ordered by the release date of the products. Macintosh Performa models were often physically identical to other models, in which case they are omitted in favor of the identical twin.
Customers with affected devices, which span "a limited serial number range", were able to check their device's serial number on Apple's website, and, if affected, receive a battery replacement free of charge at Apple Stores or authorized Apple Service Providers. [70] [71] [72]
As ESNs have essentially run out, a new serial number format, MEID, was created by 3GPP2 and was first implemented by Verizon in 2006. MEIDs are 56 bits long, the same length as the IMEI and, in fact, MEID was created to be a superset of IMEI.
Serial numbers are often used in network protocols. However, most sequence numbers in computer protocols are limited to a fixed number of bits, and will wrap around after sufficiently many numbers have been allocated. Thus, recently allocated serial numbers may duplicate very old serial numbers, but not other recently allocated serial numbers.