How much does it cost to fix my MacBook Air (11-inch, Mid 2012) ?

How do I find my MacBook Air (11-inch, Mid 2012) Service Provider?

OVERVIEW
IntroducedJune 2012
Model IdentifierMacBookAir5,1
Model NumberA1465
EMC2558
Order NumberMD223LL/A (64 GB), MD224LL/A (128 GB)
Support NiwTech
ColorsSilver
CasePrecision aluminum unibody
Weight and Dimensions2.38 lbs., 0.11-0.68" H x 11.8" W x 7.56" D
PROCESSOR
ProcessorIntel Core i5 or Core i7 (3317U, 3667U) ("Ivy Bridge")
Processor Speed1.7 GHz (Core i5) or 2.0 GHz (Core i7)
Maximum Processor SpeedUp to 2.6 GHz (Core i5) or 3.2 GHz (Core i7)
Architecture64-bit
Number of Cores2
Security ChipNone
Cache3 MB (1.7 GHz) 4 MB (2.0 GHz) shared L3
System BusIntel Direct Media Interface (DMI) at 2.5 GT/s
Logic board RepairNiwTech
STORAGE AND MEDIA
Storage64, 128, 256, or 512 GB flash storage
Storage UpgradeNiwTech
SSD UpgradeNiwTech
Data RecoveryNiwTech
MediaOptional external USB MacBook Air SuperDrive
KEYBOARD AND TRACKPAD
TrackpadMulti-Touch trackpad
Trackpad RepairsNiwTech
KeyboardFull-size backlit keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys and 4 arrow keys
Keyboard RepairsNiwTech
Touch IDNone
Touch ID RepairsNiwTech
SOFTWARE
Original OSMac OS X 10.7.4 (11E2520)
Maximum OSmacOS 10.15.7 (19H15)
OS installNiwTech
OS UpgradeNiwTech
OS DowngradeNiwTech
OS SupportNiwTech
AirDropSupported
HandoffSupported
Power NapSupported
Unlock with Apple WatchSupported with macOS Sierra (Apple Watch (1st generation), Apple Watch Series 1, and Apple Watch Series 2) or macOS High Sierra or later (Apple Watch Series 3 or later)
Hardware TestAHT 3A228
FIRMWARE
FirmwareIntel Extensible Firmware Interface (EFI)
MEMORY
Built-in Memory4.0 or 8.0 GB PC3-12800 (1600 MHz) DDR3L
Maximum Memory8 GB
Memory SlotsNone
Memory UpgradeNiwTech
Memory Upgrade InstructionsHow to remove or install memory
Interleaving SupportYes
DISPLAY
Built-in Display11.6-inch (diagonal) LED-backlit glossy widescreen
Display Glass
Brightness
Pixel Density
Color Gamut
Resolutions1366 by 768 (native), 1344 by 756, and 1280 by 720 pixels at 16:9 aspect ratio; 1152 by 720 and 1024 by 640 pixels at 16:10 aspect ratio; 1024 by 768 and 800 by 600 pixels at 4:3 aspect ratio
Display ReplacementNiwTech
GRAPHICS
Graphics CardIntel HD Graphics 4000
Graphics Card ReplacementNiwTech
Graphics MemoryUp to 1 GB DDR3 SDRAM shared from main memory
Display ConnectionThunderbolt digital video output
Display SupportSupport for up to two Thunderbolt displays
Display ModesDual display extended, video mirroring, and AirPlay Mirroring
External ResolutionUp to 2560 by 1600 pixels
CAMERA
Camera720p FaceTime HD camera
CONNECTIONS
Wi-Fi802.11n
BluetoothBluetooth 4.0
EthernetOptional Apple USB Ethernet Adapter or Thunderbolt to Gigabit Ethernet Adapter
ModemNone
USB2 - up to 5 Gbps
FireWireNone
Thunderbolt1 - up to 20 Gbps
DisplayThunderbolt digital video output
InfraredNone
Audio In2 - Built-in microphones
Audio Out1 - 3.5-mm headphone jack, 2 - Built-in speakers
Security SlotNone
EXPANSION
Slots1 - Secure Digital (SDXC)
BaysNone
Hard Drive Interface6.0 Gbps Serial ATA (SATA)
Optical Drive InterfaceNone
SENSORS
Liquid SensorLiquid Contact Indicators (LCI)
POWER
System BatteryBuilt-in 35-watt-hour
Battery Capacity
Battery LifeUp to 5 hours
Standby TimeUp to 30 days
Maximum Battery Cycles1000
Battery ReplacementNiwTech
Power Adapter45W MagSafe 2 Power Adapter
Line Voltage100-240V AC
Power Adapter ReplacementNiwTech
ENVIRONMENTAL
Acoustical Performance7 dBA at idle
Power Consumption
ENERGY STARMeets ENERGY STAR 5.2 requirements
EPEATGold
NiwTechwww.niwtech.com