Note: Do the FRU replacement or other actions in the sequence shown in the column headed “FRU or action, in sequence.” If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU.

This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next.

A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number.

If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to “Intermittent problems” on page 43.

Note: For a device not supported by diagnostic codes in the ThinkPad Notebooks, see the manual for that device.

Numeric error codes

Table 2. Numeric error codes

Symptom or error

FRU or action, in sequence

 

 

0177

System board

Bad SVP data, stop POST task—The checksum of the

 

 

supervisor password in the EEPROM is not correct.

 

 

 

 

 

0182

1.

Run ThinkPad Setup. Press F9, and Enter to load

Bad CRC2. Enter UEFI BIOS Setup and load Setup

 

the default setting. Then save the current setting

defaults.—The checksum of the CRS2 setting in the

 

by pressing F10.

EEPROM is not correct.

2.

System board

 

 

 

0183

 

 

Bad CRC of Security Settings in EFI Variable. Enter

 

 

ThinkPad Setup.

 

 

 

 

0187

System board

EAIA data access error—The access to EEPROM is failed.

 

 

 

 

0188

System board

Invalid RFID Serialization Information Area.

 

 

 

 

0189

System board

Invalid RFID configuration information area—The

 

 

EEPROM checksum is not correct.

 

 

 

 

 

0190

1.

Charge the battery pack.

Critical low-battery error

2.

Battery pack

 

 

 

0191

1.

Run ThinkPad Setup, and then save current

System Security—Invalid Remote Change requested.

 

setting by pressing F10.

 

2.

System board

 

 

 

0199

1.

Run ThinkPad Setup, and then save the current

System Security— Security password retry count

 

setting by pressing F10.

exceeded.

2.

System board

 

 

 

0251

1.

Charge the backup battery for more than 8 hours

System CMOS checksum bad— Default configuration

 

by connecting the ac adapter.

used.

2.

Replace the backup battery and run ThinkPad Setup

 

 

to reset the time and date.

 

 

0271

Run ThinkPad Setup to reset the time and date.

Real-time clock error. Check date and time settings.

 

 

 

 

 

40ThinkPad T520, T520i, and W520 Hardware Maintenance Manual

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Lenovo 4284WW9PC10B371, W520, T520i manual Numeric error codes
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T520, W520, 4284WW9PC10B371, T520i specifications

The Lenovo T520i is a robust business laptop that caters to professionals seeking reliability and performance. Part of Lenovo's ThinkPad series, specifically the model number 4284WW9PC10B371, it is designed for multitasking efficiency and mobility.

One of the defining features of the T520i is its impressive performance capabilities. It is equipped with Intel's second-generation Core processors, ranging from i5 to i7, which provide ample power for demanding applications and multitasking scenarios. This model supports up to 16GB of RAM, ensuring smooth operation even with multiple applications running simultaneously.

The T520i features a 15.6-inch high-definition display, offering users a resolution of 1366 x 768 pixels. For those who require superior screen clarity and vibrant color reproduction, the laptop can be upgraded to a Full HD (1920 x 1080) display option. This attribute is especially valuable for professionals working in design or media fields who need precise visuals.

Another characteristic that sets the T520i apart is its durable build quality. As a ThinkPad, it has undergone rigorous testing to meet military-grade standards for durability and reliability. The spill-resistant keyboard and robust chassis are designed to withstand the rigors of everyday use, making it ideal for professionals on the go.

Storage options for the T520i are versatile, with configurations available for traditional hard drives and solid-state drives (SSD). The SSD option not only enhances the overall speed of the system but also improves boot times and application loading, significantly contributing to productivity.

Connectivity options on the T520i are comprehensive. It comes with multiple USB ports, including USB 3.0 for fast data transfer. Additionally, integrated features such as a Gigabit Ethernet port, VGA output for external monitors, and optional 4G LTE connectivity ensure seamless communication and access to networks.

The laptop also boasts Intel HD Graphics, offering sufficient power for everyday tasks, video playback, and light gaming. Furthermore, the inclusion of technologies such as Bluetooth and an integrated webcam enriches user experience through enhanced connectivity and multimedia capabilities.

In conclusion, the Lenovo T520i, with its powerful processors, impressive display options, and rugged design, is a capable choice for professionals who require a reliable, high-performance laptop. Ideal for both business and personal use, it exemplifies Lenovo’s commitment to quality and innovation in the laptop market.
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