58
D. Other Defect:
1. No sound when press the key.
01. Make sure the setting is correct. (Enable) and check Speaker and BGA whether if ok.
02. Make sure the function of speaker and MB U1 wi 額 th good soldering.
03. Make sure the peripheral components of MB U1 are in good condition.
2. Can’t record
01. Check the MIC function.
02. Check the MB U1 with good soldering.
3. Cannot read / write from SD card.
01. Check function of SD card.
02. Check the SD slot socket with good soldering.
03. Check the soldering of SD slot socket circuit.