820-2838 no wifi

Sr. Robot

Member
Hi, got an 820-2838 board with no Wifi. The wifi says is active but wont detect any networks.

Tried:
working airport card and antenna
SMC and NVRAM reset
replaced U4002

U4002 Values:

card connected:

PP3V3_S3: 3.3v
P3V3WLAN_VMON: 0.98v
AP_RESET_L: 3.3v
AP_RESET_CONN_L: 3.3v
AP_PWR_EN: 3.3v
AP_CLKREQ_Q_L: 0v
AP_CLKREQ_L: 0v

PP3V3_S3: 3.3v
P3V3WLAN_VMON: 0.98v
AP_RESET_L: 3.3v
AP_RESET_CONN_L: 3.3v
AP_PWR_EN: 3.3v
AP_CLKREQ_Q_L: 3.3v
AP_CLKREQ_L: 3.3v
 

2informaticos

Administrator
Staff member
Any history available?

Signals look good with card connected.

Just in case, test with another macOS installation.
Don't you have bootable USB?
 
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