Voice Call Test - Huawei U8950 Maintenance Manual

U8950 Maintenance Guide V1.0
Board test: The phone directly proceeds to the next test if the board test is successful.
microSD card test: The message "No microSD card" is displayed if the microSD card is not
inserted. You can press the volume down key to proceed to the next test.
Keypad test: You must touch keys as instructed and can press the volume down key to
proceed to the next test.
LCD display test: Run the whitescreen, blackscreen, RGB-color, LCD backlight, and LED
light tests one by one using the volume down key, and check that the LCD displays properly.
Keypad LED test: Check whether the keypad light blinks.
Camera test: Check whether the preview function is normal and press the volume up key to
check whether the flash light operates properly.
Touchscreen test: Touch the black spot area as instructed.
Approaching light test: Shield the approaching light window to check for changes on the
display. Vibrator test: Check whether the vibrator vibrates properly and whether noises occur.
Speaker test: Play an audio clip to check whether the speaker operates properly.
Mobile phone microphone loopback test: Record and play an audio clip as instructed and
check whether the playback is normal.
Mobile phone headset loopback test: Record and play an audio clip as instructed and check
whether the playback is normal.
FM test: Insert the headset and operate as instructed.
Headset wire control test: Insert and remove the headset and microphone to check whether the
headset and microphone operate properly.
Bluetooth test: Enable Bluetooth on other devices and check whether the mobile phone can
search other devices successfully.
Gravity sensor test: Adjust the mobile phone direction to check whether the data of each
sensor axis can be obtained.
Wi-Fi test: Check whether Wi-Fi networks exist.
Failed tests are displayed on the LCD. You can re-test the failed items separately.

12.3 Voice Call Test

Step 1 Install a USIM card and a battery on the phone.
Step 2 Press and hold the Power key to power the phone on.
Step 3 Check that the signal strength displayed on the LCD is normal.
Step 4 Make a call to a fixed-line phone, and check the voice quality during the call.
Step 5 If no problems are found during the test, finish the voice call test. If any problems are found,
troubleshoot the phone or send it to an advanced repair center for maintenance.
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2012-10-22 Huawei Proprietary and Confidential
12 Functional Tests
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