I recently bought this 2012 MBP 15" 820-3330-b that had the no wifi hardware detected error.
I replaced Q3550 and L3504 but my readings remain similar on all the pieces next to the wifi connector. On Q3550 I know pin 3 (P3V3WLAN_SS) should be reading higher which is why I replaced it from a donor board.
Could it be R3550? I'm getting 32.7 Ohm and on diode mode pin 1 is OL and pin 2 is 1.04v.
1. P3V3WLAN_SS - 003v
2. PM_WLAN_EN_L - .002v
PP3V3_S3 - 3.35v
P3V3WLAN_SS - 003v
PP3V3_WLAN_R - 3.35v
P3V3WLAN_SS - 003v
PM_WLAN_EN_L - .002v
PP3V3_WLAN - .261v
WIFI_EVENT_L - .221v
PP3V3_WLAN_F - .185
Any help would be greatly appreciated.
I replaced Q3550 and L3504 but my readings remain similar on all the pieces next to the wifi connector. On Q3550 I know pin 3 (P3V3WLAN_SS) should be reading higher which is why I replaced it from a donor board.
Could it be R3550? I'm getting 32.7 Ohm and on diode mode pin 1 is OL and pin 2 is 1.04v.
1. P3V3WLAN_SS - 003v
2. PM_WLAN_EN_L - .002v
PP3V3_S3 - 3.35v
P3V3WLAN_SS - 003v
PP3V3_WLAN_R - 3.35v
P3V3WLAN_SS - 003v
PM_WLAN_EN_L - .002v
PP3V3_WLAN - .261v
WIFI_EVENT_L - .221v
PP3V3_WLAN_F - .185
Any help would be greatly appreciated.