For sure Alex isn't drinking any alcohol; this one alone will make your nervous system more steady.

he did a lot of macbooks few years ago

a short and dead board, 2k to replace from apple

I tried to repair a laptop from the previous owner who had chicken soup all over the laptop. I replaced the laptop and tried to get it working again. I've disassembled, cleaned and reassembled it 5 times, the last time I've soaked it under water and dried it in the oven at 70⁰C for 3 hours. After all that it still wouldn't turn on but the power led flashed 10x, it didn't do that before. I replaced the battery and it turned on! I use it as a cnc control laptop in the shed where humidity can be quite high but it works still after 3 years. It took me days to repair it so Northridgefix would deem it a no fix for sure. But as a hobby it was 8nteresting to do and it paid off in the end.

@@imqqmi - Like a wine spill your initial fix is to pour tomato soup over laptop

the oxide between components could introduce several problems; resistance, rectification(acts as diode; old diodes were called metal oxide diodes/rectifier), I think it might even turn to metal oxide transistor say if oxide is between 3 components. But oxide effects only external connector connections nut the inside of basic/discrete components.

Alex warranties his work.

It doesn't. It's now under the chips for sure.

if it works job is done.

@@MikeGervasi How would you suggest getting the corrosion out?

Computer engineering or electrical engineering but these days computer engineering is better

You should watch more board repair vids. Temps don’t always really matter because it is mostly about technique. I’m almost always max temp unless I’m in a sensitive situation but it’s all about how far you are from the board and technique. But air flow definitely matters but still can be subjective based on technique. Good luck!

Pros just clean up once the job is done😂

Fix it. Invoice. Move on. Flux will get that done for you then clean the flux/dirt mix afterwards. No need.

Just follow the video

No idea how you and the 16 that upvoted you are so impatient. It was a fix and he cleaned many areas using that method. My suggestion is you watch the video to the end before commenting

My urge would've have been to clean all with IA also, then remove the heat sink to get a peek under it and clean, and remove at least that one chip to see under it and clean. Then reflow. Then reinstall the chip(s) and heat sink. You know how long that would take? Big Boss is the Boss of all Bosses yes, but Alex is the King of Efficiency and knows how to get 'em in and get 'em out. Good job!

northridgefix.com/product/amtech-nc-559-v2-tf-flux-10ml-syringe-plunger-2-needle-sizes/

I was wondering the same thing. I've fixed maybe 10 different phones and laptops by cleaning with isopropyl alcohol. The ones that were successful had chocolate milk, fine dirt (dropped on driveway in the rain and left for hours), wine, soda, potato soup, beef barley soup (used water first then isopropyl for that one). I couldn't fix a laptop that had hot engine coolant spilled in it. Owner was looking at the manual to fix his car when he opened the hot radiator. The coolant actually dissolved some of the circuit traces! I also couldn't fix an iPhone found in a snow pile by the road after the plow went through. The salt from the road corroded the connectors and disintegrated the pins. And there was a Samsung Note 9 that went swimming in a lake and drowned. Lol. Under 6 feet or water for 2 hours and it was turned on. Two chips for the camera power supply were destroyed (there were pieces out if them). According to my brother who worked for Lucent some years ago, that's what happens if moisture gets into ICs. They tested the ones they made by exposing to high humidity to be sure moisture couldn't get in due to manufacturering defects. I really appreciate Alex's videos. Watched a bunch, ordered low melt solder, solder wick, and flux from Northridge Fix and replaced the HDMI IC in an LG TV where all HDMI ports stopped working. Couldn't have done that without watching Alex.

read any datasheet of surface mount IC or component like resistor or cap the reflow (heat) is 200~250'C, and the exposure time is in seconds can remember how long exactly maybe 20 or 60 until the solder paste melts to hold the component But they do burn if the temp is too much & the exposure is too long Then this indirect heat flow does not provide full heat as in hot air gun say 500'C the heat on board maybe less like 250 or 300 see wikipedia for Heat transfer

Great information. Thx

Where did your first good morning go?

У них нет времени на это, заморачиваться никто не будет, время=деньги, а то, что ноут сломается повторно через время, гарантийный срок уже пройдёт. Тут все рекомендуют сначала мыть спиртом, но спирт не останавливает химическую реакцию, походу, они не слышали, не используют solins-us (или какой у них аналог продаётся), просто прогревают все со флюсом, у нас это признак дурного тона, хотя в целом мне нравится Алекс и его работа, но не ремонт залитых аппаратов, здесь почти все неправильно.