Error Messages; Beep Errors - Lenovo ThinkPad T470 Hardware Maintenance Manual

Table 2. Numeric error codes (continued)
Symptom or error
2200
Machine Type and Serial Number are invalid.
2201
Machine UUID is invalid

Error messages

Table 3. Error messages
Symptom or error
Fan error.
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. Press the ESC key to continue.
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 http://www.support.lenovo.com/smartbeep or scan the following QR Code.
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.
The following section describes some beep errors and the corresponding solutions.
FRU or action, in sequence
Replace the system board.
Replace the system board.
FRU or action, in sequence
1. Replace the thermal fan assembly.
2. Apply thermal grease.
3. Replace the system board.
Replace the system board.
Replace the battery pack.
Replace the battery pack.
Chapter 4
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Related service information
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