Removing and soldering big BGA chip WITHOUT any preheating tools. Experiments with Agilent Scope 

thank you!

haha. yea it so funny ))

thank you!

thank you!

thanks pal

Thank you. I'm pretty sure it is a thermal glue.

In some cases there is a special marks on the board to help you to align the chip correctly. If not, before desoldering the chip (when chip is soldered to the board) i usually make some marks that will help me to align the chip when i will solder it

It is up to the thick of the board . In this case i set a 450 celsius

No it doesn't. As you said just remove left rose metal and that's ok. Rose metal is super helpful for many soldering operations such as connectors removing or preparing IC's for reballing. The main point using the Rose metal is to reduce the temperature of soldering.

@@fixthetempo7276 yes, thank you again 🤓

because there is a thin lay of flux paste on the chip i apply before gettin the balls

sorry , i can not, because i am from russia and i am in deep full of shit

Can this be compensated by distance moving?

reballing the sensor?? are you talking about a CMOS image sensor?

There is a little marker on the motherboard

No failure. It was just an experiment

Thank you!

Just reball. It was an experiment to see if it possible to reball big IC without preheating table using only hot air gun . Yes , it possible but better don't try this :)

It is because of speed of the video in this part (x7) ☺️

Before worrying about repair you need a sound understanding of electronics. If you understand the basics you will not need to ask questions like you did.

@@greenpedal370 this is all part of the learning. You learn by asking questions and growing your knowledge with books along with experience.

@@elijahwolter9235 That's where you are wrong. You need a good theoretical understanding of the basics first. If you jump the gun you will pick up bad habits and get confused with pseudo science.

My advice would be to join one of the branches of the services and train there. If you are up to it they may even put you through university to do engineering.

in the case like this video - no chance. Because of the package of the chip. Other cases is very individual and it is very difficult to recommend something

It is up to the thick of the board . In this case i set a 450 celsius. Also i must say that it is an experiment. You must solder the BGA with preheating table

@@fixthetempo7276 thanks, yes i agree

In the case showing the video - 450 Celsius with 100% airflow. But those numbers are much approximate. And it depends from many things such as the board thickness, the size of the chip, the room temperature and the model of the hot air gun. So it is all about practice, practice and more practice

@@fixthetempo7276 yeah. I soldered and reballed myself a bga chip this week 35x35mm, I got two hot air stations the cheap D636 I think it is (very low max airspeed) and the atten 862-D (very nice one) I used the cheap one, but only with way to low temperature. I will try again with ur settings on the atten, the chip didn’t settle down. Nice vid thanks

model is dell g5

it depends of the type of problem and type of difficulty. For example 2 years ago i took approx 50-60 USD to repair tristar IC on ipad mini

@@fixthetempo7276 by repair i mean replace the nand, give it a new s/n, & load ios version whatever will run on the ipad. Do you live in the US? Thank you, & no, i am not an apple spy. Thank you. Its taking a discarded but working ipad, that i found, & doing a hardware mod to make it so i can use it. REWA technology has a video, but they are more to sell the equipment to do that. Thanks the repair on the ipad mini, did your repair fix the problem? I assume so, & how long did it take?

@@j.lietka9406 sorry for late answer. Unfortunaly i am from russia(oh shit). For example i made an ipad 2 mini for my wife by replacing the nand and write new SN, for customer it was approx 80 USD. It was 5 years ago. Now in russia we cant say what will happen next day

@@fixthetempo7276 well I hope you don't get drafted to go to Ukraine!! It used to be possible to do that to certain models of iPads, but not sure about nowadays. I find PCs, laptops, Chromebooks, in dumpsters, and curbside stuff. I found 2 Mini Mac's still in the boxes in a dumpster I check periodically. Couldn't believe it! Unopened, unused! But they are 2018 models, but still like new! Thanks! Hard to hold on to, but be safe my friend! Your English is excellent!

@@j.lietka9406 thank you my friend. Unfortunatelly i am already has been drafted, because i had to serve a regular time in russia military in 2011-2012. But now i am living in another area, so right now i am free man. But it is unreal to hide in place like moscow for a long time, i do not know what will happen with me and my wife (she is a doctor and she is military used to) next day . It is not my war and i do not want to take part in this. Sorry , but now i am reaaly dissapointed and i checked all my old videos to like my subcribers and i want to thank you especially for you support

Well, Nvidia does... but if you’re serious about it, you really want dedicated chips; and cheap/free power. Look into ASIC-based miners, and a big solar farm to power it.

Yes it is.

thank you!

No it's not good to use products that har parabens in them.

these chips also aren't doing anything when being hit with that kind of heat

it is because that this BGA chip has a case like a faraday cage. I think that it had not been damaged with the temperature much more than 500 C :))

It seems like that but this may be the air gun port temperature. What the die sees is probably just above soldering temp when the balls collapse ... ouch.

why? just buy it

@@fixthetempo7276 lol, I hear ya, I just wanted to see if it's possible to do.

13:07 here is the music

It's practical for DIY home use but not for comercial.