Error Messages; Beep Errors - Lenovo ThinkPad T490 Hardware Maintenance Manual

Table 2. Numeric error codes (continued)
Symptom or error (beeps, if any)
2203
System configuration is invalid.
2204
System configuration data is invalid.

Error messages

Table 3. Error messages
Symptom or error (beeps, if any)
Fan error.
(two short beeps)
Thermal sensing error.
The battery installed is not supported by this system and
will not charge.
Please replace the battery with the correct Lenovo battery
for this system.
Press the ESC key to continue.
This system does not support batteries that are not
genuine Lenovo-made or authorized. The system will
continue to boot, but may not charge unauthorized
batteries.
Attention: Lenovo has no responsibility for the
performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out
of their use.

Beep errors

Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black
screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep
technology, do the following:
1. Go to
https://support.lenovo.com/smartbeep
2. Download the proper diagnostic app and install it on your smartphone.
3. Run the diagnostic app and place the smartphone near the computer.
4. Press the Fn key on your computer to emit the beep again. The diagnostic app decodes the beep error
and shows possible solutions on the smartphone.
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T490 Hardware Maintenance Manual
FRU or action, in sequence
Have the computer serviced.
Have the computer serviced.
FRU or action, in sequence
1. Replace the fan.
2. Apply thermal grease.
3. Replace the system board.
Replace the system board.
Replace the battery.
Replace the battery.
or scan the following QR Code.