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General| Brand | LG |
|---|---|
| Model | H990ds |
| Category | Cell Phone |
| Language | English |
Provides information for repair, calibration, description, and download of model features.
Covers security and precautions for repair, including ESD handling guidelines.
Details supported GSM, WCDMA, and LTE frequency bands with TX and RX frequencies.
Lists hardware specifications including phone type, size, weight, battery, chipset, memory, LCD, cameras, audio, connectivity, and LTE.
Defines RSSI bar levels for GSM, WCDMA/TD-SCDMA, and LTE with corresponding signal strength comments.
Details current consumption for various modes: Sleep, Standby (with/without earjack), Talk, No SVC, and Power Off.
Specifies battery bar levels and corresponding percentage ranges, including cut-off voltage.
Outlines software specifications for various features like RSSI, volume, multi-language, phone book, and call management.
Procedure to check the output frequency of the XO circuit to ensure it's 19.2MHz for WTR3925.
Procedure to check the output frequency of the XO circuit for WTR4905.
Checks DC power supply for Transceiver 1, focusing on +1V0_RF and +1.8V_RF test points.
Checks the voltage range (0.5V-4.2V) at TP1 for the DC/DC block and inspects U1601 for damage.
Checks high level voltage (2.3V-3.0V, 1.65V-1.95V) at TP1/TP2 for FEMiD block.
Checks Rx signal path for LTE bands by verifying signal existence at test points.
Checks Rx signal path for LTE bands B7/B38/B40/B41 by verifying signal existence at test points.
Checks Tx signal path for LTE bands by verifying voltage and power levels at test points.
Checks Tx signal path for LTE bands B7/B38/B40/B41 by verifying voltage and power levels.
Checks DRX RF signal path for LTE bands B7/B38/B40/B41 by verifying signal existence at test points.
Checks DRX RF signal path for LTE bands B5/B8/B12/B17/B20/B26/B28 by verifying signal existence.
Checks DRX RF signal path for LTE bands B1/B2/B3/B4/B39 by verifying signal existence at test points.
Checks Rx signal path for WCDMA bands B1/B2/B3/B4/B5/B8 by verifying signal existence.
Checks Tx signal path for WCDMA bands by verifying voltage and power levels at test points.
Checks DRX RF signal path for WCDMA bands B5/B8 by verifying signal existence at test points.
Checks DRX RF signal path for WCDMA bands B1/B2/B3/B4 by verifying signal existence at test points.
Checks Rx signal path for TD-SCDMA bands B34/B39 by verifying signal existence at test points.
Checks Tx signal path for TD-SCDMA bands B34/B39 by verifying voltage and power levels at test points.
Checks Rx signal path for GSM bands by verifying signal existence at test points.
Checks Tx signal path for GSM bands by verifying voltage and power levels at test points.
Checks DRX RF signal path for GSM bands 850/900 by verifying signal existence at test points.
Checks DRX RF signal path for GSM bands 1800/1900 by verifying signal existence at test points.
Checks BT/WiFi signal path by verifying connections and components like ANT1104, U5000, U5001, C5033, C5032, C5026, C5027.
Checks GPS signal path by verifying antenna contact, RF path through FL1301, FL1204, and voltage at C1241, C1245.
Checks NFC circuit by verifying antenna clip, TP1 signal (27.12MHz), and TP2 voltage (+1.8V).
Checks power signal related to battery, power key, PMIC, MSM, and memory components.
Checks I/O connector and Type-C cable voltage (5V/9V) for charging issues, referring to PMIC.
Checks receiver control signals generated by WCD9335 and the receiver module for proper function.
Checks speaker control signals generated by WCD9335/WSA8815 and the speaker for proper function.
Checks microphone filter and reconnects PCB for operating voice call, voice recording, and camcorder.
Checks microphone filter and reconnects PCB for operating speakerphone call.
Checks microphone filter and reconnects PCB for Hifi Recording and concert mode.
Checks headset insertion or sound from earphone, and the ear mic using the headset icon.
Checks main display functionality by inspecting CN7501 and TP voltages.
Checks camera functionality by inspecting CN7300 and TP voltages, including MCLK.
Checks camera functionality by inspecting CN7310 and TP voltages, including MCLK.
Checks VT camera functionality by inspecting CN7400 and TP voltages, including MCLK.
Troubleshoots proximity sensor for LCD ON/OFF issues using hidden menu, SAAT, and calibration steps.
Troubleshoots proximity sensor for LCD ON/OFF issues by checking output and PCB.
Calibrates accelerometer, gyro, compass, and pressure sensors using SW algorithm.
Checks fingerprint sensor function, calibration, and FPCB connection for proper operation.
Checks IRRC functionality by verifying working status and TP voltages (1.8V, 2.4V).
Troubleshoots motor issues by checking contact, driver IC power (VPWR), and L8800.
Checks Hall IC functionality for Quick Cover issues by verifying magnet component and voltage.
Checks USB functionality by verifying battery module connection and signal for USB+/-.
Troubleshoots SIM2 issues by checking SIM card support (3V/1.8V) and voltage levels at TP1/TP2.
Provides a comprehensive overview of the phone's main chipset, connectivity, memory, camera, PMIC, and sensors.
Illustrates the RF signal paths for various bands (GSM, LTE, WCDMA, TD-SCDMA) and their associated components.
Shows the connectivity block diagram for Wi-Fi, Bluetooth, and GPS, detailing interactions with MSM8996 and PM8996.
Illustrates the NFC block diagram, showing connections between PN548C2, MSM8996, and PM8996.
Details the memory interface between MSM8996 and SD Card/UFS storage, including SDC and UFS protocols.
Shows power management blocks including PMI8996 and PM8996, detailing voltage rails and connections.
Illustrates power management components like PMI8996, PM8996, and MSM8996, detailing voltage rails and connections.
Shows the block diagram for the display and touch interface, detailing connections to MSM8996 and PM8996.
Details the block diagram for the main 16M OIS, 8M Wide, and 5M Front cameras connected to MSM8996.
Illustrates the block diagram for the camera flash and LDAF module, showing connections to PMI8996 and MSM8996.
Shows the audio block diagram, including WCD9335, MSM8996, PMI8996, and the connections for main and sub microphones.
Details the block diagram for various sensors: Gyro, Accelerometer, Compass, Pressure, Hall IC, IRRC, and Fingerprint.
Illustrates the block diagram for Slim port and USB Type-C connections, detailing interactions with MSM8996 and PM8896.
Shows the BGA pin map for the MSM8996 Digital Baseband Processor.
Displays the BGA pin map for the H28U74301AMR UFS storage.
Provides the BGA pin map for the PM8996 PMIC.
Shows the BGA pin map for the PMI8996 PMIC.
Displays the BGA pin map for the WTR3925 RF Transceiver.
Shows the BGA pin map for the QFE2101 DC-DC Converter.
Provides the BGA pin map for the SMB1350 Charger IC.
Displays the BGA pin map for the BCM4358 WiFi IC.
Shows the BGA pin map for the PN548 NFC IC.
Displays the BGA pin map for the WCD9335 Audio Codec.
Provides the BGA pin map for the WSA8815 Speaker Amplifier IC.
Shows the BGA pin map for the ANX7888 Signal Bridge IC.
Provides a top-side PCB layout with key component locations labeled.
Shows the bottom-side PCB layout with key component locations labeled.
Explains how to access the hidden menu using a shortcut key and navigate to Device Test.
Guides through Device Test options: SAAT, Service Menu Tests (Auto/Manual), and AAT version.
Lists various test items available in Service Menu - Auto Test and Manual Test for user selection.
Shows the results of auto-detecting items like USIM, Sensor, Battery, and Smart Cover.
Details the key press test procedure, including proximity sensor calibration and light level adjustment.
Demonstrates the display check test, indicating PASS or FAIL status.
Shows the ring test interface, allowing users to test sound output by toggling ON/OFF.
Illustrates the vibrator test interface, with options to turn vibration ON or OFF.
Shows the NFC test interface, including reader mode and SW self-test status.
Displays motion sensor test results for magnetic, accelerometer, gyroscope, and proximity.
Shows the loopback test interface for audio, allowing users to test audio output.
Shows GPS, Bluetooth, and WiFi test status, including signal strength and scan results.
Demonstrates the touch draw manual test, requiring screen drawing after powering down.
Shows the camera test interface for verifying picture quality.
Displays the main wide camera test interface with resolution information.
Shows the laser detect test interface, including calibration and PASS/FAIL status.
Demonstrates the camcorder test, requiring screen interaction to play video.
Shows the VT camera test interface with resolution information.
Displays the camera OIS test interface, indicating status for Gyro, Hall, and Driver.
Shows the IrRC test interface with PASS/FAIL options.
Demonstrates the HDMI test, requiring HDMI cable connection and PASS/FAIL status.
Shows the FM Radio test interface, including scanning and signal check for antenna connection.
Displays the OTG test interface for storage mount and file operation.
Shows the charging test interface, indicating HVDC charging status.
Displays the fingerprint test interface, showing status for SPI, Zone, and Touchboard.
Shows camera tests for Laser, AF, and Flash, indicating PASS/FAIL status.
Lists tool version, DLL name, USB driver, and HW information for firmware download.
Guides on setting up USB COM port for firmware download, specifying port numbers and settings.
Explains USB D/L cable setup for firmware download, noting the requirement for full program without USB.
Details Flash tool settings for firmware download, including version and model information.
Lists calibration information including S/W version, H/W name, part number, and required cables/equipment.
Guides on setting up USB COM ports for calibration, specifying ports for different devices.
Illustrates the physical connection of calibration cables for PIF, phone, and power supply.
Details Tachyon settings for calibration, including selecting modes and checking file configurations.
Provides step-by-step instructions for disassembling the battery, cover hook, and battery cell.
Details disassembling screws, releasing hooks, and pulling antenna sides carefully.
Explains disassembling rear cover hooks, battery groove, and speaker, warning about potential damage.
Provides instructions for disassembling main PCB connectors and removing the PCB.
Exploded view part: Cover Assembly.
Exploded view part: MSM8996 Digital Baseband Processor.
Exploded view part: LPDDR4 Memory.
Exploded view part: UFS NAND Memory.
Exploded view part: WTR4905 RF Transceiver.
Exploded view part: WTR3925-2 RF Transceiver.
Exploded view part: FEMiD (Front-End Module).
Exploded view part: L/M Band MMPA.
Exploded view part: High Band PAMID.
Exploded view part: BT/WIFI Transceiver.
Exploded view part: IRRC.
Exploded view part: Main Camera Connector.
Exploded view part: Receiver Contact.
Exploded view part: Sub Mic Contact.
Exploded view part: LED Contact.
Exploded view part: Side Key Contact.
Replacement parts for phone assembly and various covers.
Replacement parts for receiver, hinge, and bracket assemblies.
Replacement parts for various PCB assemblies and flexible components.
Replacement parts for phone jacks and chip inductors.
Replacement parts for resistors and tactile switches.
Replacement parts for insulators, dampers, and gaskets.
Replacement parts for hybrid touch LCD modules and various ICs.
Replacement parts for microphones, filters, and tactile switches.
Replacement parts for multilayer chip inductors and ceramic capacitors.
Replacement parts for FEM modules, crystals, and switches.
Replacement parts for analog switches, sensors, and PMICs.
Replacement parts for multilayer chip inductors and filter components.
Replacement parts for gyro sensors, PMICs, and LDO voltage regulators.
Replacement parts for multilayer chip inductors and ceramic chip capacitors.
Replacement parts for FEM modules, ICs, and sensors.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for gyro sensors, PMICs, and LDO voltage regulators.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for FEM modules, crystals, and switches.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for gyro sensors, PMICs, and LED drivers.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for FEM modules, crystals, and switches.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for gyro sensors, PMICs, and LDO voltage regulators.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for FEM modules, crystals, and switches.
Replacement parts for decor assemblies and window components.
Replacement parts for tapes and coil springs.
Replacement parts for PCB assemblies and tact switches.
Replacement parts for decor assemblies and sheets.
Replacement parts for caps and labels.
Replacement parts for speaker modules and insulators.
Replacement parts for PIFA antennas and tapes.
Replacement parts for filters and boxes.
Explains how to access the hidden menu using a shortcut key and navigate to Device Test.
Guides through Device Test options: SAAT, Service Menu Tests (Auto/Manual), and AAT version.
Lists various test items available in Service Menu - Auto Test and Manual Test for user selection.
Shows the results of auto-detecting items like USIM, Sensor, Battery, and Smart Cover.
Details the key press test procedure, including proximity sensor calibration and light level adjustment.
Demonstrates the display check test, indicating PASS or FAIL status.
Shows the ring test interface, allowing users to test sound output by toggling ON/OFF.
Illustrates the vibrator test interface, with options to turn vibration ON or OFF.
Shows the NFC test interface, including reader mode and SW self-test status.
Displays motion sensor test results for magnetic, accelerometer, gyroscope, and proximity.
Shows the loopback test interface for audio, allowing users to test audio output.
Shows GPS, Bluetooth, and WiFi test status, including signal strength and scan results.
Demonstrates the touch draw manual test, requiring screen drawing after powering down.
Shows the camera test interface for verifying picture quality.
Displays the main wide camera test interface with resolution information.
Shows the laser detect test interface, including calibration and PASS/FAIL status.
Demonstrates the camcorder test, requiring screen interaction to play video.
Shows the VT camera test interface with resolution information.
Displays the camera OIS test interface, indicating status for Gyro, Hall, and Driver.
Shows the IrRC test interface with PASS/FAIL options.
Demonstrates the HDMI test, requiring HDMI cable connection and PASS/FAIL status.
Shows the FM Radio test interface, including scanning and signal check for antenna connection.
Displays the OTG test interface for storage mount and file operation.
Shows the charging test interface, indicating HVDC charging status.
Displays the fingerprint test interface, showing status for SPI, Zone, and Touchboard.
Shows camera tests for Laser, AF, and Flash, indicating PASS/FAIL status.
Lists tool version, DLL name, USB driver, and HW information for firmware download.
Guides on setting up USB COM port for firmware download, specifying port numbers and settings.
Explains USB D/L cable setup for firmware download, noting the requirement for full program without USB.
Details Flash tool settings for firmware download, including version and model information.
Lists calibration information including S/W version, H/W name, part number, and required cables/equipment.
Guides on setting up USB COM ports for calibration, specifying ports for different devices.
Illustrates the physical connection of calibration cables for PIF, phone, and power supply.
Details Tachyon settings for calibration, including selecting modes and checking file configurations.
Provides step-by-step instructions for disassembling the battery, cover hook, and battery cell.
Details disassembling screws, releasing hooks, and pulling antenna sides carefully.
Explains disassembling rear cover hooks, battery groove, and speaker, warning about potential damage.
Provides instructions for disassembling main PCB connectors and removing the PCB.
Exploded view part: Cover Assembly.
Exploded view part: MSM8996 Digital Baseband Processor.
Exploded view part: LPDDR4 Memory.
Exploded view part: UFS NAND Memory.
Exploded view part: WTR4905 RF Transceiver.
Exploded view part: WTR3925-2 RF Transceiver.
Exploded view part: FEMiD (Front-End Module).
Exploded view part: L/M Band MMPA.
Exploded view part: High Band PAMID.
Exploded view part: BT/WIFI Transceiver.
Exploded view part: IRRC.
Exploded view part: Main Camera Connector.
Exploded view part: Receiver Contact.
Exploded view part: Sub Mic Contact.
Exploded view part: LED Contact.
Exploded view part: Side Key Contact.
Replacement parts for phone assembly and various covers.
Replacement parts for receiver, hinge, and bracket assemblies.
Replacement parts for various PCB assemblies and flexible components.
Replacement parts for phone jacks and chip inductors.
Replacement parts for resistors and tactile switches.
Replacement parts for insulators, dampers, and gaskets.
Replacement parts for hybrid touch LCD modules and various ICs.
Replacement parts for microphones, filters, and tact switches.
Replacement parts for multilayer chip inductors and ceramic chip capacitors.
Replacement parts for FEM modules, crystals, and switches.
Replacement parts for analog switches, sensors, and PMICs.
Replacement parts for multilayer chip inductors and filter components.
Replacement parts for gyro sensors, PMICs, and LDO voltage regulators.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for gyro sensors, PMICs, and LED drivers.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for gyro sensors, PMICs, and LDO voltage regulators.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for FEM modules, crystals, and switches.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for gyro sensors, PMICs, and LDO voltage regulators.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for FEM modules, crystals, and switches.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for gyro sensors, PMICs, and LDO voltage regulators.
Replacement parts for multilayer chip inductors and ceramic chip components.
Replacement parts for FEM modules, crystals, and switches.
Replacement parts for decor assemblies and window components.
Replacement parts for tapes and coil springs.
Replacement parts for PCB assemblies and tact switches.
Replacement parts for decor assemblies and sheets.
Replacement parts for caps and labels.
Replacement parts for speaker modules and insulators.
Replacement parts for PIFA antennas and tapes.
Replacement parts for filters and boxes.
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