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Sorry for the lack of information, I’ve just never had this exact issue and was quite frankly a bit confused about everything being 0V.... Measured all pins on U7100 and all are 0v...
By Caddy I meant the Plastic Caddy with its flex. Used one streikt from a working machine so that can’t be at fault.
I replaced R4506,4507,4508 and 4510 with ones from a donor as well as C4522 and C4525. I haven‘t replaced C4518 and C4517 yet as they are so close to the PCH.
In regards to the...
Hi, have this really tough A1425 2012 retina board. It won't recognise a SSD even with a know good drive and known good caddy. All power lines at J4500 are present as expected. How do I properly check the data lines?
Hi, have this 820-3787-A Board which is completely dead no green light. PP3V42_G3H is 0V. My DC IN Board and genuine MagSafe Charger are known good. Aynone got a idea? I habe no idea on the history, just that it had a prior repair
Hi got this A1534 12" 2015 Retina MacBook in for repair after a small spill over the Keyboard. My first ever 12" Retina I've worked on. The Keyboard is completely unresponsive as well as the Trackpad. I was first tempted to replace the top case as these are absolutely notorious for their...
Need an SMC for an 820-3462A A1425 2012 13" Retina. Cant find a thing though.. Well there is one sketchy vendor from aliexpress selling a scapulas board with SMC for 45USD but he won't ship to Germany. And the people on Ebay selling SMCs just sell useless blank chips... Any idea where I can get...
Hmm. I sadly have no donors on hand. Any idea where I can get decent replacements that are from actual boards and not just blank chips? Also, could this have caused the initial problems?
So removed the SMC! Was a bit hesitant to do this but it came off perfectly! And Diode Mode reading have changed... I now get:
C6999 - .323
C6990 - .376
Better?
Update: Out of absolutely nowhere PPBUS_G3H collapsed to 1.8V. Left the board sitting with power for like 1 minute and now this.... R6920 shows a burn mark on it though im not sure if that's new... No more light on the charger. I didn't do anything to the board what so ever
Yup used a genuine 85w one and it was always used with a 60w genuine one according to the owner.
PM_BATLOW_L is 0V
SMC_PM_G2_EN is 0V
PPBUS_G3H is 12.64V
Hope That helps!
Hi, got this "Liquid Damaged" A1425 in for repair. Has absolutely no corrosion though! Doubt it actually got wet at all. Regardless, it has no power, green light and then orange comes on. PPBUS_G3H and PP3V42_G3H are present. S5 rails like PP5V_S5 and PP3V3_S5 are not! Anyone know what could be...