Nokia 6310 without network signal

Nokia 6310 without signal or with weak signal
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With Griffin "Phone BB Tests (Self Tests)"
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Passed - ST_UEM_CBUS_IF_TEST
Passed - ST_EAR_DATA_LOOP_TEST
Passed - ST_TX_IDP_LOOP_TEST
Passed - ST_TX_IQ_DP_LOOP_TEST
Passed - ST_SIM_CLK_LOOP_TEST
Passed - ST_SIM_IO_CTRL_LOOP_TEST
Passed - ST_IR_LOOP_TEST
Passed - ST_MBUS_RX_TX_LOOP_TEST
Passed - ST_BACKUP_BATT_TEST
Passed - ST_WARRANTY_TEST
Passed - ST_SIM_LOCK_TEST
Passed - ST_PPM_VALIDITY_TEST
Passed - ST_KEYBOARD_STUCK_TEST
Passed - ST_LCD_TEST
Minor - ST_LPRF_IF_TEST
Passed - ST_LPRF_AUDIO_LINES_TEST
Passed - ST_FLASH_CHECKSUM_TEST
Not executed - ST_IR_IF_TEST
Done
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What it means this???
Minor - ST_LPRF_IF_TEST

need help

tanks
zefer