Apple MLB 820-01523 + 820-01525, Logic Board / Motherboard BoardView file and BoardView file

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Price: US $20.00  

iPhone 11 - MWHU2LL/A* - iPhone12,1 - A2111* - 3309*
iPhone 11 - MWLU2B/A* - iPhone12,1 - A2221* - 3304*
iPhone 11 - MWN12ZA/A* - iPhone12,1 - A2223* - 3309*



What's included :

— Schematic Diagram
— BoardView file and BoardView Software
— Component explain
— SCHEMATIC DIAGRAM ANALYSIS (31 pages):

Baseband Circuit
Bottom speaker power AMP
Charging
Chip
Compass
Displey principle
Face recognition
Flash lamp
Front camera
Gyro
Hard Disk
High freqency diversity reception high frequency power amlifier
I2C BUS
Low freqency diversity reception low frequency power amlifier Microphone
Powe supply of RF power amplifier
Power On principle
Receiver power AMP
RF power supply
Sensitive distance volume key
Shock
SIM
Touch
U1 ULTRA BANDWIDTH CIRCUIT
UHF 2G POWER amp
Ultra wide angel camera
USB
Wide angel camera
WIFI Circuit

— Repair Cases (As-Is!)

Automatic restart
Automaticaly enter DFU mode upon startup
Camera power failure due to power supply
Camera record, SIRI can't wake up
Crashes and can't be powered on
Crashes WIFI, Bluethooth not working
Does not charge
Does not dispaly (caused by water ingress)
Does not power on (baseband and WIFI POWER SUPPLY short sircuit)
Does not power on fault
Does not read SIM card
Heavy drop without baseband
Heavy dropez No WIFIZ no Bluethoth
Phone repetedly reboots
Phone screen is black and does not display
Prompts high-tempature photos to stop using
Reboot with charger inserted
Repetadly restars without entering the system
Restart does noe turn on fault
Screen
Short circuit does not turn on
Shot sircuit causes no service
Three minute reboot fault
Water ingress and restart
Without baseband


Main components:

CPU : 2.66 GHz Apple A13 Bionic
Screen: 6.1" Liquid Retina HD
Year: 2019


File types :

Schematic Diagram: PDF
BoardView file : PCB
Silkscreen: N/A

Updated: 01-12-2025
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