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General| Brand | BLU Products |
|---|---|
| Model | Jenny |
| Category | Cell Phone |
| Language | English |
Lists key features and capabilities of the Jenny T172i phone model.
Details technical specifications like network, display, camera, battery, and connectivity.
Provides a visual breakdown of the phone's parts with numerical labels for identification.
Displays images and names of tools needed for repair and maintenance.
Step-by-step visual guide for taking the phone apart.
Step-by-step visual guide for reassembling the phone.
Identifies components on both Side A and Side B of the main circuit board.
Detailed layout diagrams for both sides of the Printed Circuit Board Assembly.
Visual representation of the phone's internal architecture and component interactions.
Introduces the MT6250 chip and its integrated capabilities.
Details the connections and functions of the baseband and CPU components.
Explains the circuitry for the phone's keypad.
Details the schematic for the 32.768KHz clock circuit.
Covers the connections between the CPU and flash memory.
Explains the interface for SIM card data output.
Outlines the various power output voltages and currents for the MT6250 CPU.
Provides the schematic diagram for the battery connector.
Describes the 10-pin I/O interface and its functionalities.
Overview of the SKY77568 dual-band transmit/receive front-end module.
Details the schematic of the power amplifier stage.
Provides detailed schematics for the SIM card circuits.
Steps to diagnose and resolve issues preventing software downloads.
Guides for diagnosing power-on problems and current swing instability.
Troubleshooting steps for phones with low or no current draw during power-on.
Troubleshooting steps for phones with excessive current draw and heat during power-on.
Steps to diagnose and resolve issues causing the phone to be completely unresponsive.
Guides for resolving issues with the phone's display, such as no display or abnormalities.
Steps to diagnose and resolve issues with the phone's keypad not working correctly.
Guides for diagnosing and resolving issues with the phone's keypad backlighting.
Steps to diagnose and resolve issues related to SIM card recognition and insertion.
Guides for diagnosing and resolving problems with weak or no signal reception.
Steps to troubleshoot issues with speaker volume and sound output.
Guides for diagnosing and resolving problems with receiver voice clarity or absence.
Steps to troubleshoot issues with microphone input and sound quality.
Steps to diagnose and resolve charging errors and related prompts.
Guides for diagnosing and resolving issues where the phone does not charge at all.
Steps to troubleshoot problems where the phone does not recognize or display charging.
Guides for diagnosing and resolving issues related to rapid battery drain during standby.
Steps to diagnose and resolve issues with reading or accessing the T-Flash card.
Guides for diagnosing and resolving issues with the phone's camera function.
Installing USB drivers and configuring Flash Tool settings like COM port and FAT format.
Configuring Flash Tool settings including COM port and FAT format options.
Selecting backup/restore options and the Download Agent file.
Selecting the appropriate scatter/config file for the firmware.
Steps to power off, connect, and initiate the firmware download process.
Monitoring firmware download progress and confirming successful completion.
Performing a factory reset using a specific code after firmware upgrade.
Confirming the current firmware version of the device.
Testing the receiver's sound output by blowing into the microphone.
Testing each button on the handset to ensure proper functionality.
Activating the vibrator to confirm its operation.
Testing the main speaker to ensure it functions correctly.
Playing the ringtone to verify its sound output.
Testing the LED indicator light.
Initiating the LCD's automatic display test.
Testing the receiver's sound output during a call.
Testing the camera's capture and shooting functionality.
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