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Did you checked all your S0 rails ? If you have PPVCC_S0_CPU normaly it should be OK. Is your CPU over heating ? Plus you can hear the charging boing this is weird....

Hi 2Informaticos, I've noticed that the PRam aera was corrupted when I read it whith the Medusa,so I've wrote a complete clean dump, injected the Fsys area and did a CRC. which didn't solved my issue but it was necessary. Then I did a reflow with my Quick 861DW air station at 430 deg and 90 L...

Again Thank you for your answer..... First I've noticed that I didn't had the 3v3_S4 but 5V_S5 was OK: This was with the board having the battery connected Withoiut battery it goes to S0 state with CPU heating..... I've also tried to connect those USB C adapter with normal usb to see if an...

No History and NO no sign of Water Damage PPBUS_G3H: 8.59V PPVBUS_E85: 14.4V PPDCIN_G3H: 14.35V as I can also see it on the USB C Tester with the display ( I have 14.8V but Not pulling Current, 0A ) PP3V3_G3H: 3.302V PP3V3R3V0_AON: 3.229V PPVRTC_G3H: 3.296 PP5V_G3H_LDO: 4.996V PP5V_S4: 5.016V...

Hi guys any news regarding this issue? I have the same exact one

I've forgotten to mentionned that I'm able to read the U6100 informations and lloks like OK, I've also cleaned the ME Region, but still the same. I don't remember if I've injected another dump file into it but I can try.....

Hi 2Informaticos: Are you sure about USB activity? Optical mouse turns ON Confirm with OSX pendrive with Link LED; if flashes, there is activity for sure. Tested with external 10.12 SSD HFS with led: led turns ON but not blinking as it should be, so No activity, only power like usb mouse. Do...

Hi 2Informaticos, Team This board came perfectly clean no WD signs It boots fine but no chime and no display, USB activity OK . All S0 rails present and fine, CPU heats quite a bit more that usual. PP5V_S0 : 5.123V PP3V3_S0: 3.318V PP1V05_SUS: 1.058V PP1V5_S0: 1.508V PP0V6_S0_DDRVTT: 0.599V...

Removed R5385 for SMC_PBUS_VSENSE: NOK with R5385 still removed I've also removed R5309 for SMC_CPU_VSENSE still :NOK Next step will be to remove all the resistors that bringing all the I and V sense rails to the SMC, if still not OK so in that case I would suspect the SMC....... What do you think?

removed R2598, and tryied to start the board in normal mode: NOK On the board the pin1 ( SMC_N_FOLLOW ) is still 2.5V but as removed R2598: 0V on pin 2. Something is still preventing the SMC to turn ON the board: I will double check SMC_PBUS_VSENSE and SMC_CPU_VSENSE as they're higher that the...

On Charger: SMC_CPU_ISENSE: 0V SMC_CPU_VSENSE: 0V SMC_DCIN_ISENSE: 0.039V SMC_PBUS_VSENSE: 0V SMC_BATT_ISENSE: 0.069V SMC_NB_MISC_ISENSE: 0V SMC_MCP_VSENSE: 0V SMC_CPU_FSB_ISENSE: 0.610V SMC_MCP_CORE_ISENSE: 0V SMC_MCP_DDR_ISENSE: 0V SMC BYPASS: SMC_CPU_ISENSE: 0.380V SMC_CPU_VSENSE: 1.162V...

On Charger: OFF SMC BYPASS: SMC_CPU_ISENSE: 0V 0.380V SMC_CPU_VSENSE: 0V 1.162V...

yes PP3V3_S5_AVREF_SMC: 3.299V You wrote: "If board always starts in SMC bypass mode, should be an I/VSENSE sensor issue." So I'll check all the I/V sense signals at page 39 , 43 , 44, 51 etc.... In the mean time I've noticed that it is not charging the battery as it's pulling only 30 mA...

Page 57: 1.8V S3 REGULATOR: 1.8V Pulsing because P1V8S3_EN pulsing too. 1.5V S0 LDO: PP1V5_S0 Pulsing as it's directely depending of 1.8V S3 1.05V SUS LDO: PP1V05_SUS: 1.061V OK Page 58: PP1V5_S0SW_AUDIO_HDA Pulsing 3.3V SUS Switch OK 3.3V S4 Switch: Pulsing as depending S4_PWR_EN...

What's your idea reagrding: all voltages from pages 57/58? do you think that one of those is shorted to gnd and drops down the PP3V3_S5?

Maybe Crap under CPU preventing PM_SLP_S4_L to be high?

@2Informaticos: All big coils pulse too? YES Also check ALL_SYS_PWRGD and pins 3/7 of U1950. Pulsing Too , everything pulses to Vcore Did you try SMC bypass? YES: Pusles too : forces the fan to enter in quarter Spin loop @JohnB: Yes checked and resoldered all pins : No sign of corrosion...

Hi team, PPBUS_G3H: 8.59V PP3V42: 3.401V PPRTC_G3H: 3.310V PP5V_S5: 4.994V PP3V_S5: 3.310V S4 State pulsing SMC_ADAPTER_EN : 3.366V PM_BATLOW_L : 3.305V PM_DSW_PWRGD: 3.398V SMC_PM_G2_EN: 3.396V Checked all SPI Bus Series Termination traces and resistors Put flux and heated SMC and SPI Re...

Quarter Fan Spin in Loop PPBUS_G3H: 8.59V PP3V42: 3.401V PPRTC_G3H: 3.310V PP5V_S5: 4.994V PP3V_S5: 3.310V S4 to S0 rails, Pin 3 of U1950 pulsing SMC_ADAPTER_EN : 3.366V PM_BATLOW_L : 3.305V PM_DSW_PWRGD: 3.398V SMC_PM_G2_EN: 3.396V Checked all SPI Bus Series Termination traces and...

Replaced LIO j9500 Connector: Problem Fixed Backlight, Green/Orange Led, keyboard, Sound, USB Port ALL OK Thanks 2Informaticos You can set this topic as RESOLVED Best Regards