HTC Diamond - User Manual

Questions and Answers

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Kelli AndersonAug 17, 2025
What to do if my HTC Diamond Cell Phone main unit does not respond to the power button?
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  Emily BarberAug 18, 2025
  If your HTC Cell Phone's main unit isn't responding to the power button, try these steps: First, connect the AC adapter to recharge the battery, waiting a few minutes. Check if the battery is correctly installed. Inspect the power button for damage. If possible, replace the battery pack. As a more advanced step, attempt to start boot-loader mode and re-flash the ROM if boot loader mode is enabled. Ensure all connectors, including the LCD FPC to the Main Board, are properly connected. If necessary, replace the Main Board. Finally, once a defective part is identified, double-check if the issue can be replicated on another unit.
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Caleb CuevasAug 20, 2025
Why does my HTC Diamond Cell Phone battery discharge quickly even after fully charged?
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  Katherine CooperAug 20, 2025
  If your HTC Cell Phone's battery discharges quickly, ensure the battery pack fully charges with the AC adapter. Verify the battery charging status is correct. Inspect the battery pack for any visible damage after disassembling the unit. If needed, try another battery pack, replacing it if necessary. As a last resort, try another Main Board, replacing it if necessary. After identifying a potentially defective part, confirm the issue by testing with another unit.
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Christina VasquezAug 23, 2025
Why is my HTC Diamond battery pack not recharging?
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  jwardAug 23, 2025
  If your HTC Cell Phone's battery pack isn't recharging, ensure it fully charges with the AC adapter. Check that the battery charging status is correct, noting that charging should not exceed 4 hours. Disassemble the unit and inspect the battery pack's appearance. Try using another battery pack, replacing it if necessary. If the issue persists, try another Main Board, replacing it if necessary. Once a defective part is identified, verify the issue by duplicating it with another unit.
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jenniferschmidtAug 25, 2025
What to do if the touch panel does not respond to screen tap on my HTC Diamond Cell Phone?
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  Mary NewmanAug 26, 2025
  If your HTC Cell Phone's touch panel isn't responding, first check the connection of the LCM FPC cable. Then, try cold booting the unit and tapping the screen again. If that doesn't work, try another touch panel with housing assembly. You can also try another Main Board. Replace the touch panel with housing or the Main Board if necessary. After identifying a potentially defective part, confirm the issue by testing with another unit.
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breyesAug 27, 2025
What to do if the buttons do not respond on my HTC Diamond?
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  dcarrAug 27, 2025
  If your HTC Cell Phone buttons aren't responding, try cold booting the unit. If that doesn't work, dismantle the unit and check the condition of the switches on the Main Board and the plastic parts of the unresponsive button. Try using another Main Board or Front Bezel. Replace the Main Board or Front Bezel if needed. After identifying the defective part, verify the symptom can be duplicated with another unit.
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natalie02Aug 30, 2025
Why is PC connection not possible with my HTC Diamond Cell Phone?
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  Brandy BarrAug 30, 2025
  If your HTC Cell Phone's PC connection isn't working, it might be because the cradle was connected to the computer before ActiveSync was installed. Check the “Connection Settings” in MS ActiveSync. Also, verify the connecting cables and cradle are working correctly, as the customer's cable might be damaged. Inspect the connector on the unit for physical damage. Try re-flashing the ROM code. If necessary, replace the Main Board. After identifying the defective part, verify the issue by duplicating it with another unit.
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Timothy FreySep 1, 2025
How to fix no sound from speaker on HTC Cell Phone?
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  Heather LopezSep 1, 2025
  If there's no sound or distorted sound from your HTC Cell Phone speaker, first check the “Sound & Notifications” settings to ensure sound is enabled and that the device isn't muted. Try re-flashing the ROM code. Clean the speaker connection on the Main Board if there's any contamination. Disassemble the unit to check if the speaker is correctly installed. If needed, replace the speaker or the Main Board. Once you've identified a potentially defective part, verify the issue by duplicating it with another unit.
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Morgan RodriguezSep 4, 2025
What to do if the battery pack does not start on my HTC Diamond Cell Phone?
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  Kimberly ZamoraSep 4, 2025
  If your HTC Cell Phone battery pack doesn't start, ensure the battery cover is properly closed. Connect the AC adapter to see if it charges, and check the adapter's condition. Verify the AC adapter is functioning correctly and that the battery charging status is correct. Inspect the battery pack for any abnormalities. Try another battery pack, replacing it if necessary. If problems persist, try another Main Board, replacing it if necessary. After identifying the defective part, verify the symptom by duplicating it with another unit.
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Ms. Jacqueline LyonsSep 6, 2025
How to fix unusual vertical or horizontal lines on HTC Cell Phone display?
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  Colleen JohnsonSep 6, 2025
  If you're experiencing unusual vertical or horizontal lines, or a partial display on your HTC Cell Phone, check the connection of the LCM FPC. Try cold booting the unit. Attempt to re-flash the ROM code. Try another touch panel with housing assembly. Also, try another Main Board. Replace the touch panel with housing assembly or the Main Board if necessary. Once a defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.
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jenkinsvincentSep 9, 2025
What to do if back light does not turn on/off on HTC Diamond?
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  Shannon FosterSep 9, 2025
  If your HTC Cell Phone's back light doesn't turn on or off, check the connection of the LCM FPC. Try re-flashing the ROM code. Try another touch panel with housing assembly. Also, try another Main Board. Replace the T/P with housing assembly or the Main Board if necessary. Once the defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.

Summary

Introduction and Product Overview

Product Features

Details device specifications like platform, dimensions, processor, memory, and display.

Product Overview

Provides a general overview of the device's physical aspects and included accessories.

Device Disassembly and Assembly

Tools List

Lists essential tools required for disassembly and assembly procedures.

Disassembling Procedure

Step-by-step guide on how to take the device apart safely.

Assembling Procedure

Step-by-step guide on how to reassemble the device correctly.

ROM Re-flash Procedures

ROM Upgrade via RUU

Instructions for updating the device's firmware using the RUU utility.

ROM Image Upgrade via SD Card

Instructions for updating the device's firmware using an SD card.

Diagnostic and WinCE Tests

List of Diagnostic and WinCE Test Items

Enlists various diagnostic tests for device functionality and WinCE tests.

Power Measurement Tests

Main Board Leakage Current Test

Procedure to measure abnormal leakage current on the main board.

Battery Rundown Test Procedure

Method to test battery life and performance under various conditions.

Cosmetic Inspection Criteria

Classes Definition of Inspective Area

Defines inspection areas (A, C, D) and their respective criteria.

Display Inspection

Specifies criteria for inspecting the device's display for defects.

Main Unit Inspection

Outlines inspection criteria for the main unit's physical integrity and gaps.

Generic Troubleshooting

Generic Labeling Plan

Spare Parts and Photos

SPL for Repair

Provides a comprehensive list of spare parts with P/N, description, quantity, and substitute.

RF Antenna Specification

HTC Diamond Specifications

General

Processor	Qualcomm MSM7201A 528 MHz
RAM	192 MB
ROM	256 MB
Storage	4 GB internal storage
Operating System	Windows Mobile 6.1 Professional
Battery	Li-Ion 900 mAh
Weight	110 g
Touchscreen	Yes
Display	2.8 inches, 480 x 640 pixels
Camera	3.15 MP, autofocus
Dimensions	102 x 51 x 11.5 mm
Video Recording	Yes
Connectivity	Wi-Fi 802.11 b/g, Bluetooth 2.0
GPS	Yes