MacBook medic

Ok so I have a macbook pro early 2010 15” i5 620m I can get this to boot from an SSD or USB drive but it wont boot from a...

I’ve just been fixing one of these tonight if theres no light on the charge wire and you’re sure the charger is good its likely a blown u7000 but its worth changing q7030 and q7031 while you’re here. I replaced a u7000 tonight the tools I used are a MUSTOOL G1200, 858d hot air ‘station’ max heat and low air, soldering iron with 900m-t-s bent tips, leaded solder and fine tips on my multimeter. I have experience with bits of hot air soldering and its at the limit of my abilities and very easy to create a dry joint. I appreciate this is a long and complex answer but I’d prefer the information to be here for the next guy so they dont get told to repeatedly reset the smc.

thats the one wire over voltage protection circuit easy fix

the schematics are easy, if you cant handle them you shouldnt be working on the board. Try the power button jumper

get a friend to make you a dosdude catalina usb drive or buy an el capitan usb off ebay. Also your drive is likely dieing so long term you should fit an ssd

c7771 capacitor always fails

other side of the board. find the 820- reference on your board and find the location yourself to be sure.

The memory speed should be pc3-8500s check you have used that and not something faster. You likely have a connection issue so try cleaning the conacts with isoprophyl then install one dimm at a time and turn on inbetween.

These boards suck a ton of juice so throttle themselves horifically on a battery below 5 or 10% cant remember which, loud fan is a sympton of a smc sensor issue or the wifi/webcam/trackpad being disconnected.

They’re not difficult to remove I repair macs as a side business and the correct tip from ifixit grips these screws without movement. You need to use the correct Y0 driver which is standard in the ifixit mako kit not a cheap three headed philips driver that comes in all the chinese battery kits.

likely a bad component like a capacitor or bad gpu

omg it is so bad you had to repair these at. I always just bought replacement cables on ebay with zero issue

This teardown is stupid on step 4 he says this ps2 has no clock battery when its clearly located next to the CPU in step 12

ebay just search cf to zif