Making knowledge free and public is a power no one understands. Thank you so much!

I used to replace bios chips but always did a bios dump of the chip first but for the last 6-7yrs I just reflash them it's quick n easy when you've got a collection of known good bios files for most models & programmers are dirt cheap so why not it saves waiting for the chip & there's more money in it!

You are one good man, I watch your videos daily and I learn everyday something new. I hope that one day I could do things that you do so easily :D

Sorin, I know you read the comments so will write a very short thank you and share a tiny story - Thank you for all the content it has been very helpful and entertaining I see them everyday you upload them. I also see some videos from NorthridgeFix where I see him inducing current into the MB's to spot the short circuit but he has a termal camera, I laughed so much when he said he couldn't spot the issue if he didn't had the thermal camera... Made me wanting to get all your videos where you burn your finger in order to find them... hahahahaha. You are awsome and again thank you! P.S.: If I ever get rich I will send you a thermal camera to stop the pain :D

After solder back the compatible bios chip you have to start up the computer making a SMC reset and a PRAM reset. For better result a CLEAN ME REGION must also be performed on the chip. The processus is well documented on the web.

No need to replace chip, read EFI using connector on logic board and clear Firmware lock in Hex editor. Then write clean dump back to chip. Takes 5-10 min and no need for soldering.

Keep in mind when you replace the EFI chip or flashing it from the web, you are changing both the devices and motherboards serial numbers. Many macs/macbooks around the world would then have the same serial number. What happens if one of these machines gets reported stolen?? The best way to unlock it (if there is nothing else wrong with the firmware) is to dump the ROM, clear the password and then flash it back again. This way you keep the identity of and the optimized firmware for this machine.

Thanks for the detailed video. I did this and now it boots perfectly fine. Now I have two new problems. 1. Keyboard not working 2. Battery does not work without plugging it to charger

Could you do a video showing how to fix that USB flash drive stick, thanks.

Really like your videos! Keep up with the good work!

I suggest using aluminium tape instead of kapton tape. Aluminium tape reflects heat, while kapton absorbs it.

Hi Sorin, Is it possible to do the same work on a Macbook pro 13" A1278 year 2012? Thank you for all the good videos you provide...;-))

Before buying a secondhand apple computer, always check to see that the Apple ID is logged out, control R to see if the EFI is locked and get the mobile number of the vendor before buying.

Wouldn't say it's a bad idea.....atleast we're here learning from you...

i;ve been doing this for over 9 years lol ... and now i see you posting this :)) funny

I got this model a few days ago at a flea market very informative repair video thanks for the upload. Fun fact I brought a $24 bios from eBay for this board and wasn't sure the $15 with a different brand name would work?

Hi, it is great content and super helpful. However, I had the same problem when I bought a Mac on Ebey 3 years ago and recently when I tried to upgrade and wipe out my data I found there was an EFI password and I was surprised. Where is your location so I can bring it to you and change that chip? I have important data on my Mac and don't want to lose it. Let me know if you are based in the UK.

Wonder if this would work with an iPad mini?

You look a bit tired Sorin. I hope everything is OK.

If we remove one ram card, will it remove the password lock? There is another youtube video that does that to remove the password lock on iMac. Once it is removed, he puts the RAM card back in.

Did you just stick a brand new unprogrammed NAND onto that board and it works?!

When yuo replace BIOS chip or reprogramming chip before that you have a modify by hex serial of you MacBook because FaceTime or similar don't work because the serial aren't the same and iCloud or another service don't work correctly

Hi hope you can help...we get a lot of MacBook from companies for recycling and normally hdd are wiped.However how can i find is the laptop locked ? quickest solution thanks,

Youre the best Master Sorin. 💪👍

There is never a good thing to bend boards like that much especially when working with heat! Rohs balls can screw from the cpu or gpu. But it is also true taking the motherboard out will take time and the client will not pay for that time unfortunately- a lot of ppl think electronics are such an easy job that deserve very little money 🤦🏻‍♂️

Se si installa il sistema e da errore data é perché i certificati di installazione o sono scaduti ( data troppo recente ) oppure non ancora vałidi ( data troppo vecchia )

Love The Fact You Show How People from Poorer Countries can fix Things...!!!..in other Videos..

What happened to your electrical screwdriver 😔

Hello where did you download the Catalina and burned usb thanks!

it is not necessary to put a new chip, just put the removed chip in a CH431a reader and edit the bin file.

Thank you very educational

Thank you for sharing your technical knowledge

Nice videos I really appreciate your effort can you please show us your beautiful cameras you are using them

Thank you so much Sir! I've learned a lot from you...

Does the new chipset not have to be programmed?

Apple can often unlock these for no charge. It's worth calling them first. There's an EFI tool you can run from a USB stick.

Thank you master Sorin!!!

NICE ! great video as always sir very informative very direct also

Tell me please. MacBook 15 2015 keys do not work (RTYUIO) and E does not work well, are there any repair options without replacing them with a new keyboard? Thank you in advance!

date and time are used to validate security certificates that might be used by installer to authenticate the code.

There is no way to contact Apple to get back into a laptop? Enjoy your holiday. Thanks for the video Sorin.

Sorin.. maybe in UK you can receive a new chip in 48h.... but i'm on Italy.. I have to order it also in UK and I receive the chip after 10 days... for me is better to delete the password directly on eeprom using a cheap programmer.

Which metin2 server will you be on, Sorin? Also a character name and nation can be useful :))

Thanks

hello Sorin, i wonder why you don't just reprogram it ?, why replacing it ?

go to SetUp and Enable usb

Sir, what is BD6 in smd symbol?

Please help me. I am in the same situation

I bet the lime usb drive is ok, just the corrupted image/files.

Replace the bios chip won't lose the serial number of mac ? And other stuff?

Hey. I do this frequently. There is a better way. Not only that but unless you bought a preprogrammed bios with the serial number programmed into it. Then this MacBook will surely run into trouble.

Thanks Sorin does this work with I phones I pads etc

master sorin

How much charge for your work? Plz explain and upload a video about job many job charge. Hope you are well. You are like father to me. Love you old man.

Where are you located?

Why do you not just remove password. To read the EFI chip met een programmeur like the ch341a. Open with hxd editor en research for #SVS REPLACE ALL THE LINE WITH FF . and password is gone.

good evening my dear friend

You can overcome this password by just removing 1 RAM chip, and keep the 2nd one. Now boot it up, and you'll see no password. When you're done with the installation, put the 2nd RAM chip in place, and job is done. No need to solder anything in this particular case :).

Watching the way you fix's electronic equipment you make my skin Crawl....

Hi sir, my lenovo laptop got brick while it updating Bios and now no sign on the laptop (no charging light, no hard boot). Please help me out.

I wish I could work with you

how do you know that that chip is the bios chip and not another one

can you do the same with an iphone ?

whats the name for that Flux you are uing?

In New York

If someone has a padlock, it means that the laptop is stolen.

👍

Not that easy with iPhones...

Now anybody stealing Apple laptops can get into them based on a simple premise; "ignorance is bliss." I don't approve, but here's how to break into a stolen laptop. haha

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Only good for old Macs.

For teaching purpose, this video is not good. The technician is sloppy and lazy. Provides very little intro, or technical information. Perhaps because his English is poor. He takes a short cut by leaving motherboard on case to save about 5 min of time. He pries the motherboard with a touchpad. No doubt the circuit board is slightly warped by the prying. Below the motherboard is a keyboard covered in carbon paper. Then, the worst of all, he applies heat while the motherboard on the case and warped. This instruction is not good for a beginner. Avoid it. There are better postings on this medium elsewhere.

Thanks

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