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Yep, learned that lesson. Also a lot of these reballed ones i have found to be faulty. missing 1V1 LDO indicates bad controller chip

check your PM!

cant be done without recovery key........move on...

I installed a 2017 screen into a 2018...picture was there but no camera.

Charge as much as possible to stay competitive in your geographic area. I cant charge New York rates in my town in the UK, but i'm not doing it for pennies either. I average around £225.00 for Board level repairs for macs, and around £90 - £150 for PC boards.

thanks Duke...

Still stuck on this one.I have replaced Q8470, I still have exactly the same fault So i roasted the GPU to about 150C, ( i was clean out of ideas) We're still missing DP_LINK_OK. I'm only persevering as i`ve had about 4 of these with same fault Any ideas, would you go for a GPU swap at this...

Hi, I still get a bunch of these in with dead GPUs. The usual pink vertical lines. The problem being i cant get 216-0732019 or 216-0732025 anymore to replace these dead chips. I have tried from usual suspects from china/singapore and i just get sent dead bullshit garbage reballed shitty...

Hi, I have a couple of 27? 2015 IMacs that have pretty much the same issue. They both came in with 1 light illuminated on the logic board. Usually this can be a short somewhere, but what I found was Q8470 being faulty. There as a 1V drop across this FET, meaning PM_PGOOD_FET_P12V_S5 was low. I...

This is mostly fixed with a replacement lcd panel. With the price of replacement panels these days it renders repair virtually uneconomical.

Still going to need elbow grease. Theres no product that just wipes the coating off.

Thanks Duke, i'll give this a crack tomorrow. i've got a few of these machines in i can mess about with. Nice to see your still about.

Hi, I?ve got an 820-01041-A that is driving me crazy, so I?m here for a 2nd opinion. I know these boards are fairly new, so there is not that much info out there. The problem is I can?t get this board to get 20V from the charger. PP20V_USBC_TA_VBUS remains at 5V. So, I get the following...

All bullshit, high chance of reballed garbage chips. Only solution is Tiresias from CMzapper, or the GMUX reprogram from Dosdude.

Probably not. i haven't tried, but these come with different core speeds. I haven't found any data sheets ever to explain what the different suffixes on the chip numbering schema work. Was it a new chip ?

Can the icloud lock be removed for the newer Macbook Pros ? The Laptop is not stolen, its from one of my long standing customers who has had their icloud account hacked and machine is held locked for ransom. I have reprogrammed the bios, but it just goes back to the 6 digit unlock code. She...

Hey, I'm just wondering if anyone still has any of the above chips available, or knows anyone that would sell some? I'm clean out and still getting units coming in weekly. Everyone is selling "refurbished" chips. it might be time for me to call a day on these repairs but thought i'd reach out...

click of death can also be caused by a bad board.

Yep, we are over the hill. If you cant see that then, oh wel..... AST2 has been out for years already. There is someone working on a workaround for this, however your biggest issue is going to be good quality parts, and people like Duke figuring lots of this shit out. I already do lots of PC...

Hi, Can someone please link me to a 820-4924 bios with a cleanME ? thankyou in advance