Recent content by Doubleu82

Both ports behave the same voltage and current wise (both generate the same voltages on the board) When i plug in the macbook into another macbook with an the Apple charge cable it shows up directly as DFU device (not using the procedure). tried reviving but progress gets stuck at step:4...

Hi all I started working on a 820-01521 with no power, it is stuck at 5v there are no signs of liquid what so ever. there was no PPBUS_G3H. pp3v3_g3h is ok and a few others. I noticed that one of the cd3215's has no 1v1 present when connected to USB. I replaced that chip and now the seem to...

i'll look into that, thanks for the advise. Like mentioned earlier, this repair is for data recovery, is there another way of retrieving data from the ssd (encrypted), This model has a replacable SSD in a weird form-factor

When 1v1 is not present, is that a cd3215 issue ( broken) or could that be an issue elsewhere? Are there any additional checks i could do to verify a bad cd3215. I use 425degrC and high air to (de)solder them could this be of any risk (i also do eg tristar with these settings and i'm successful...

I checked the 1v1 LDO both are 0v BUF_SMC_RESET_L = 3v42 I swapped out the aliexpress CD3215 for one I bought on ebay (the ones which where packed in a cut reel) I see also difference in the chips caps, the one from Ali are shiny-ish and the eBay ones have are more dull finish but all of them...

Hi, thanks for the fast reply, The ISL area was a bit corroded, after cleaning with IPA and a brush it looked ok. but replaced the ISL (ebay source) after measuring some wierd levels I ordered two batches of CD3215, first 5pcs from ali that arrived after 2months dangling in a plastic bag...

Hi All, let me start with introducing myself, I'm an electronics engineer working in software now for ASML. I started repairing macbooks (actually Louis videos triggered me ;-) ) from a hobby perspective now and then but it has grown since to 1 or 2 a week. My repair side carrier made it...