HTC MDA2 service manual Data Retention related problem, Battery Pack does not start

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6A Data Retention related problem

(1)Back up battery is rechargeable, to retention purpose when main battery power is used up or when changing the main battery, Make sure to charge the unit if not use for a while.

(2)Data introduced by User might be lost when Battery has drained completely.

(3)Ask user to charge the Main Unit when latest warning message pops up.

(4)Ask users to back up their data to the PC or SD card when expect stop using the unit for long period of time, for example, more than one week.

(5)Charge the Main Unit and check if data looses even the Battery pack is charged or at least The unit still can be powered on without AC Adapter.

(6)Check whether AC Adapter is functioning properly.

(7)Check whether the condition of Battery Charging status is correct.

(8)Check the appearance of Battery Pack.

(9)Replace Battery Pack if necessary

(10)Replace Main Board if necessary.

(11)Once the defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.

7A Battery Pack does not start

(1)Make sure the Battery lock is closed properly. Data introduced by User might be lost when Battery has drained completely.

(2)Connect to the AC Adapter and see if it takes charge. Also check AC Adapter condition.

(3)Ask users to back up their data to the PC or SD card when expect stop using the unit for long period of time, for example, more than one week.

(4)Charge the Main Unit and check if data looses even the Battery pack is charged or at least The unit still can be powered on without AC Adapter.

(5)Check whether AC Adapter is functioning properly.

(6)Check whether the condition of Battery Charging status is correct.

(7)Dismantle the unit and check the appearance of Battery Pack.

(8)Try with another Battery Pack or Replace Battery Pack if necessary

(9)Try with another Main Board or Replace Main Board if necessary.

(10)Once the defective part has been identified, verify it again with the defective part whether the

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Contents For MDA2 APP D Table of contents 2Specifications of MDA2 Product SpecificationsIntroduction GSM/GPRS Functional Block Specification of AC AdapterPDA Functional Block GPRS/GSMTotal 43 CONT.ON page no Total 43 CONT.ON page no TTE System Block Diagram Servicing Tools Disassembling Assembling and DisassemblingTotal 43 CONT.ON page no Total 43 CONT.ON page no Total 43 CONT.ON page no Use tweezers to remove the Vibrator Speaker Total 43 CONT.ON page no Gasket LCM Poron Total 43 CONT.ON page no Total 43 CONT.ON page no Tips Antenna AssemblyFIX Antenna Cover Test List of Test Jigs Problem DiagnosticsClassification of Non-Conformity Touch Panel Does Not Respond to Screen Tap SD Card cannot be used Buttons Do Not RespondUnusual Vertical / Horizontal lines or partial display Back Light Does Not Turn ON/OFFPC Connection USB / Serial not possible Wireless Connection GSM / WAP / Gprs not possibleIrDA Connection not possible Battery Pack does not start Data Retention related problemNo Recorded Sound or Distorted sound Battery discharges quickly even after fully chargedBattery Pack does not recharge No Sound from Speaker or Distorted soundHousing Cosmetic damage Clean Talk Time Diagnostic ProgramStop on fail Checksum Refurbishment Exploded Diagrams & Spare part list Spare part list Customer, Retailer Misjudgment AppendixResponse HTC confidential Repair Troubleshooting Guide

MDA2 specifications

The HTC MDA2, released in the early 2000s, was a significant entry in the realm of mobile communication technology, ushering in features that set a standard for future devices. As part of HTC's lineup, the MDA2 was designed primarily for professionals and tech enthusiasts seeking a balance between functionality and portability.

One of the standout features of the HTC MDA2 was its operating system, Windows Mobile 2003. This platform was notable for its user-friendly interface and compatibility with various productivity applications, which were essential for business-oriented users who relied on their devices for daily tasks. The device came equipped with a 400 MHz Intel XScale processor, ensuring that it handled tasks efficiently despite its compact size.

Display technology was another highlight of the MDA2. It featured a 2.8-inch TFT touchscreen that offered a resolution of 240 x 320 pixels. This display allowed for a clear and vibrant interface, making navigation easier while accessing applications and emails. Additionally, the device boasted a stylus, further enhancing user interaction with the touchscreen.

Connectivity was a focal point of the HTC MDA2, which supported GPRS and EDGE networks, along with Wi-Fi capabilities. This made surfing the web and accessing online content swift and effective—a crucial advantage in a fast-paced business environment. The presence of Bluetooth 1.2 allowed users to connect wirelessly with other devices, promoting seamless data transfer and hands-free capabilities.

Memory capacity was also an important consideration, as the MDA2 came with 64 MB of RAM and 128 MB of internal storage. While this may seem modest by today's standards, it was adequate for its time, with the option to expand storage further using an SD card. This feature allowed users to store applications, files, and media without significant limits.

The HTC MDA2 integrated a 1.3-megapixel camera, allowing users to capture images on the go—an essential feature during a time when mobile photography was gaining popularity. Although not equipped with advanced camera capabilities, it provided basic functionality for mobile imaging.

In conclusion, the HTC MDA2 was a pioneering device that encapsulated the technological trends of the early 2000s. With its emphasis on productivity, connectivity, and user experience, it laid the groundwork for the evolution of smartphones in subsequent years, establishing HTC as a key player in the mobile technology landscape.
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