Lesson learned master Sorin, never soldier connected to live board, doesn't mater the device!! Each error you do is error that your students will avoid. You have superior skill of teaching. Gratings :)

Guys, when sorin was in the army they were training on hand granades, and one of is soldier friend of Sorin, throws a hand granade and it doesnt explode.Then Sorin says "dont worry let me repair the hand granade, takes the grande and dismantels its ignition parts and replace the detonator and gives back. His friend takes hand granade, pulls the pin and turns and ask Sorin "what did u do" . Sorin's answer was as usual i replaced the detonator with a Properly Calibrated Detaonator. Actually these were the last words his friend heard. Then Sorin scratches his head and says What did i do wrong, i just replaced the faulty part with a properly calibrated one. 🤣🤣🤣🤣 Sorin it was a nice video just wanted to make you smile with a funny imaginary story. Lots of love from Istanbul.

i love every posting you have done...such a kind and composed and humorous person

I like the honest (unedited) way Sorin does the video. It could be the battery voltage running down the earth of the soldering iron into the mysterious world of earth loops, and then (because of Murphy) pop up in a place where it can cause damage.

There is no place on earth that can teach electronic like Sorin

15:14 - To identify component google "s-manuals smd". Then you pick from table and see data sheet. UL26 is ESD protection device. 19:42 - I am maybe 30 years younger, yesterday I tried to do something I did 20 times OK in past, I made single mistake and I bricked board worth 3000 eur. At least I am not one of those that are scared to even try. Yes I will repair that board because everything can be repaired.

Sorin has the biggest supply of specially calibrated fuses in the world.

The USBLC6-2SC6 and USBLC6-2P6 are monolithic application specific devices dedicated to ESD protection of high speed interfaces, such as USB 2.0, Ethernet links and video lines. The very low line capacitance secures a high level of signal integrity without compromising in protecting sensitive chips against the most stringently characterized ESD strikes

Good to see you again, ive always watched your videos and learnt a lot, esp with your lovely personality, wish you the best my friend.

Ground leak from the soldering iron thru USB to PC..I burned a NanoVna like that..soldering while was connected to PC...I found later like AC 80V from TS100 power supply to PC ground..

your calibrated solder was absolutely pointless... look at the tracks on the PCB 🤣 those pads ARE connected already.. the UL26 is just an ESD protection, no signal is going through.

699 in the US..... Even Sorin has continuing education. I thought I was the only one.

It happens so quickly to not think about possible ground loops and the risks that may come with them. For that reason I always use USB Isolators for my USB Meters & Programmer.

You are amazing Sorin. I wish I had your knowledge!

Just have fun, you are your best customer, I'm too. Before to fix we need to spoil some thingys, and then just repair it. Nice video. Thanks for share.

the same happens with the oscilloscope, you can break it if you don't get another power supply that is separate from the mains .. there are special transformers

I have also experienced that state of shock while I was soldering the mainboard with the charger plugged in, and I was shocked so hard, my whole body shook,, it was like I was put on the one that is placed on the chest for another shock, and I was not it was moving for a few minutes, it was like that happened there that the parts were shocked,,

This was a great video on what not to do & how to fix when you break it. Always learning right?? 🤓🧐

Ground loop problem,rare but can be explosive.

"God heaps shit on those most able to shovel it"! Sorin is teaching me not to panic, when I have cracked that, I'll try some electronics.

As always you are the best!)

Now put back UL26 which is ESD protection.

Hi, If you look carefully there is no broken path under the chip UL26 ( esd protection ) , so your soldering wire is useless. Next time no need to rush 😉

Nice video

Hello....... can you share how to open the BMS circuits of makita, miuwaukee, etc. batteries with the chip reset software EV2300, CP2112,........

Hi Sorin This chip is a usb to rs232 converter to be connected to a microcontroller. The battery sensor line is connected to directly to the microcontroller and not to 232 chip. In first diagnosis when there is no usb response to the computer means that 232 chip is not communicated. Like arduino boards. Best regards.

I am always frustrated by having to repair the tool that is supposed to be used for repairing. I get so mad and start breaking everything.

hi love your style and content.please could you test the V difference between the ground and solder iron tip.

• 2 data-line protection • Protects VBUS • Very low capacitance: 3.5 pF max. • Very low leakage current: 150 nA max. • SOT-666 and SOT23-6L packages • RoHS compliant Benefits • Very low capacitance between lines to GND for optimized data integrity and speed • Low PCB space consumption: 2.9 mm² max for SOT-666 and 9 mm² max for SOT23-6L • Enhanced ESD protection: IEC 61000-4-2 level 4 compliance guaranteed at device level, hence greater immunity at system level • ESD protection of VBUS • High reliability offered by monolithic integration • Low leakage current for longer operation of battery powered devices • Fast response time • Consistent D+ / D- signal balance: - Very low capacitance matching tolerance I/O to GND = 0.015 pF - Compliant with USB 2.0 requirements

Dear.. from where i can get software and interface of battery programming and analyser after putting new battery how to reprogram.please make a complete video on this topic. Thanks.

Dokładnie tak jak mówisz na końcu. Masa z komputera to nie jest ta sama masa co neutral w gniazdku do którego Masza uziemienie grota lutownicy. Powstało napięcie które zniszczyło chip od USB.

We have a romanian customer, romanian custom unlock device, and everything is fixed by a romanian guy. WHAT CAN GO WRONG 😂😂😂

OMG I'm just glad that happened to you fixer of all fixable :)

Our NLBA1 DEVICE HAS BEEN DAMAGED AND IT IS NOT WORKING WHEN WE PLUGED THE ADPOPTER IT WILL BE On and green light show in device But USB is not connacted to the Laptop Whats the solution?

I didnt see the video, but if you had battery connected to the device when you were soldering it - you had common ground connection between battery and usb chip. Afterwards, when you touched the fuse with soldering iron, you shorted VBAt through mains earth, through USB chip (USB GND) to main ground, which killed the chip (did that a few times.. :S ) For the chip itself, would strongly suggest not getting it from china, had quite a few arrive somewhat dead - Chip itself works, but the moment you install driver driver itself states "Chip phased out in 2010, contact your supplier" and does not work, simply because its counterfeight

Could you make a diagram of this device? so that everyone could make such a device?

Kind of late , but the usb data tracks under that esd protection they got continuity, you didnt need to use any proper calibratred soldering wire, lol,

After watching your video, I would say your soldering killed the surge protection (the chip in the USB data lines). The Chip was probably fine until you put 5V on the 3.3V pin. That killed the chip. Anyway, Its working again and we were remembered to be carefully with different ground potentials. Did you check, why these were so different? Shouldn't both be connected to earth potential?

👌👌👌

plz try to remove UL26 usb protection part

Hello bro I need bq40370 EVM software

Yeah, dont solder on plugged in stuff... I've made that mistake myself and payed the bill for it.

UL26 = Low capacitance, Two line, ESD protection. Data sheet online.

Original PL2303 chip from China is hard to find. Bought from five different sellers and only one turned out to be genuine. If anyone wants, I can give a link to the AliExpress seller from whom I bought the original.

Hi do you have a schematic

1:58 - "We"? Do you have a mouse in your pocket?

What screwdriver is that

well iam alot younger than you Sorin and i already burn things i mean alot

it wouldn't have happened if you used a wireless soldering iron. 😁

Hi

man i swear you are unlucky :D

+So it was NOT your fault ?

That device is too expensive. For what it costs I could buy 6 battery packs. Maybe a repair shop could use one but even then the cost is prohibitive.

Cip cip cipcirip

hello soryn i actually have some god working devices , can you help me pleeease :=) lol I can relate , why me ! Greattings from françe .

lol

LOL. blaming it on ground potential and electromigration

Hello Sorin, I am from Kashmir India , i am an electronics engineering graduate and running the same business as yours and love to learn more electronic just like you. But the problem is that, here there are not many devices to fix and also earning is very little. Can i get a job in UK in the same field, can you suggest me something?

The whole machine has problems

some people on here trying to tell you about electronics sorin .... !!! they couldnt tie your shoe laces ...

Over priced and now we can see not the best of designs either

finally opened it haha you are now been forced

i want this tool, but it is 700 bucks in the united states.....wtf

i got one never use it cant even sell it locked to my pc peace junk money making scam

Maybe it's time for you to retire.

UL26 is a Resistor Network

1:12 manufacturing in Romania maybe does the reason !!! ))))🤣