How to program a bios chip - CH341A programmer, no, you don't have to modify it

[techjinda]

I bought this a few years back, this little programmer made us so much money we literally ran our shop for months on the money we got programming chips with it, its my absolute favorite.... Merry Christmas from Zimbabwe 🇿🇼🇿🇼🇿🇼🇿🇼🇿🇼

[SalunMarvin]

Wow, this is what I call an electronic class. Thank you, so much.
I'm trying to restore a Steam Deck, and my gut says the problem is in the BIOS microchip. I connected the CH341a on it and it didn´t recognize it. Later on I discovered that the chip runs in 1, 8v and I tried without the adapter. I was afraid I had burnt the microchip. Now I understand that this can't happen.

Good thing is that I didn't read or write anything on the chip because it didn't recognize it. Now I'm waiting for the 1, 8v adapter to come, and I'll test again. Hopefully, it will be recognized.

[renataavgeri]

So happy and grateful you managet to get the channel and videos back.

[jan-johannes-bosman]

I am 62 and lack the funds to purchase a Microscope as I am weak sighted, but enjoy your videos so much as it just proves that the world needs common sense.

Example: My wife programmed process controllers without Grade 12 maths and science. I did computer science, but branched into commercial systems. She used Fortran and I Cobol. We now look back after more than 40 years and laugh at ourselves. I was thinking in paragraphs and she was thinking in arrays. I later bit the bullet and went to college to learn C and logic mainly to understand my wife.😇😁

[tech.curiosity]

I never had problems using this programmer as it comes without modifiying anythink in it. Thanks for the video.

[davesworkplace]

Glad to see you are back up and running Sorin. I was starting to get worried. A lot of people were missing you.

[caruanagiacomo]

Sorin, that is very well explained how programming, and that you need Ampere, to burn something and not volt, and one should not change anything about the CH341A programmer, people always tend to complain without knowing anything thank you Sorin Merry Christmas to you and your family too, from Belgium

[midclock]

Luckily I've read a post on Reddit saying that no modification is required. Btw I thought exactly the same: a manufacturer can make a bad design, but this programmer has been around for a very long time, it cannot be possible to have all these "faulty" boards around now.
Thanks for using your brain. The Internet is a good source for information, but this is an example of why everything must always be checked and not trusted straight away, you don't know who's on the other side.
Let me share a trick to get usb ports connected right the first time: the eyes of the port must look to the sky. That's how it's easy to remember for me 😅

[fichambawelby]

You are absolutely right, Sorin. A couple of years ago I bought one complete SVOD3, but this one was my very first programmer (BIOS chips only, of course). I had never modified it in any way, and it does work perfectly. The worst thig is the chip clip; it is really bad. You are luck, man! It does work for you in the video!.

[marksutherland]

Have a great Christmas Sorin and thanks again for the all the great videos you put out.

[mmmihai]

i really needed to understand this programmer before using it since i never used one and i found no videos about how to use it rather than showing it i mean i need to know all about it before using it and someone really did this and im just gonna subscribe

[risrecber]

I have a few things to say.
1. Sorin explained nicely in the video that the chip will not fry because the current is not high on the pins and that is correct.
And that Programmer is beautifully designed and does its job..
2. as far as CH341A modification is concerned, it is not a matter of higher voltage in chip frying, but in data transmission on that pin.
5V (4.82V) and 3V (3.28V) voltage injection affects the data transfer pin (read-write)
It is known that voltage and frequency affect data transmission (Example: higher frequency affects data transmission, incomplete transferred content on the chip can occur), which also happened to me, but not always.
So it's not about frying the chip, but a higher voltage on the data transfer pin.
There is a lot to explain depending on the use of the Programmer and its connections, i.e. the resistance of the accessories (Examples: a clip with a longer cable or the length of the cable by connecting to the chip)
3. You don't need to modify CH341A works perfectly.
If you decided to modify, in my opinion, the best way was modified by Georgdev. You can look at
with this modification, you regulate 3V and 5V on the switch.
when it is put on 5V switch it is in factory condition..
Sorry for my bad english writing, Regards..

[GlishaSo]

Finally !!!! Waited for you to step out and say this to all their Learn electronics and love electronics allways <3 <3 much love brother! and Happy Holidays! <3

[mariocarvalho]

Sorin.... you are big!
Thank you for the lots of videos with good sense and a lot of experience...
Greetings from Portugal 🇵🇹

[markmorris]

Thanks Sorin for making that clear. seasons greetings to you and your family.

[mrgreen]

Hi Sorin! I'm so happy to see that everything is back to normal!

[nopochoclos]

Phenomenal explanation, I bought the same complete one but I was years behind in studying how to program it now, I am an amateur but you have to check the bios IC datasheet and the clamp or socket have specific positions because usually these products do not come with good manuals.

[Pirelli.]

Another great video Sorin! God bless you and your Family!

[carlomazza]

"Hello! We are back"... Really!!! 🍾🍾🍾 Welcome back Sorin!! Happy to see you again!

[yashMG]

Ya..🙌 channel is back.. so glad to see you again Sorin 😃👏..