Never attempt to diagnose or repair an LG Grace smartphone (LGL59BL) without proper training and equipment. The motherboard is a critical component responsible for most phone functions, making diagnosis challenging.
Replacing the motherboard may not be cost-effective, as new phones with similar specs are available. However, doing so can help reduce electronic waste.
Risk of damage to the phone or injury to yourself.
Remove the battery from the rear of the device.
Remove the M1.3 x 3mm screws from the back panel using a #00 Phillips screwdriver.
Insert the Jimmy into the small gap between the phone screen and body.
Locate the pin connection marked by a red box in the guide image.
Disconnect the front speaker from the motherboard.
Identify and disconnect the ribbon cable attached near the charging port.
Hold the phone firmly in one hand.
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