hgoncalves
Active member
Hi,
I have an A1502 820-4924-A that does not recognize the SSD. First, it wasen't booting the macos (freezed in the loading bar), and after the CleanME upgrade, the SSD is not recognized any more, even with a known good SSD.
On SSD connector J3700, I have 3.3V on all pins of PP3V3_S0SW_SSD_FLT
SSD_SR_EN_L = 3.2V
SSD_RESET_CONN_L = 3.4V
SSD_PWR_EN = 0V
I have 3.2V on R1620 SSD_PWR_EN , so I think that it is not the CPU (don't know if it makes sense).
I think that it might be U8070, or U3711 or U3740.
On U3740 I have 3.2V on SSD_PWR_EN , but on U3711 I think that I have 0V on SSD_PWR_EN pin 1
Shall I replace U3711?
I have an A1502 820-4924-A that does not recognize the SSD. First, it wasen't booting the macos (freezed in the loading bar), and after the CleanME upgrade, the SSD is not recognized any more, even with a known good SSD.
On SSD connector J3700, I have 3.3V on all pins of PP3V3_S0SW_SSD_FLT
SSD_SR_EN_L = 3.2V
SSD_RESET_CONN_L = 3.4V
SSD_PWR_EN = 0V
I have 3.2V on R1620 SSD_PWR_EN , so I think that it is not the CPU (don't know if it makes sense).
I think that it might be U8070, or U3711 or U3740.
On U3740 I have 3.2V on SSD_PWR_EN , but on U3711 I think that I have 0V on SSD_PWR_EN pin 1
Shall I replace U3711?
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