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New Members - please post your introductions here
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Good evening and a happy new year 2025
I am interested in BIOS settings and have my own company for repairing hardware and software.
I wish you a nice time here on the website and hope that I can help.
I am a master craftsman in precision mechanics
Greetings ChristianComment
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Hi, All. I'm an electrical engineer and (among other things) I support a circuit card repair lab. So far I've found some useful info on here, so thanks for that.Comment
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My name is Raphaël, French guy, not as young as I wish,
Not that bad in English and electronics but could be better.
I fix things, everything, most of the time, I try and fail, from a car to a smartphone, from my children broken toys, to my parents computer (on which they also messed up), I try to make things last a little bit longer than what is expected nowadays by manufacturers.
IRL I'm a "heating system installer" specialized in heating pumps, air conditioning systems... So I have to fix some electronics on those systems too for my clients.
I try to stay up to date with hard and soft evolution but things goes fast.
I recently bought a T48 programmer to fix a dell computer on which the bios seems corrupted. but I discovered two elligible chip, then discovered the existence of the Intel EM chip by reading some post here, so I thought it was maybe a good idea to register.
Thanks for help provided here.Comment
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Hello, I'm a tech enthusiast with an old BSEET from the 70's. Am able to work on my own computers and laptops as well as friends. Love learning new things. I've flashed and recovered a few chips and have just ordered an ATTEN ST-862D to try additional types of repairs.Comment
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MEU NOME É KAIKY, SOU DE PONTA GROSSA PARANÁ BRASIL. ATUO NA AREÁ DE ELETRONICA, FAZENDO MANUTENÇÃO EM CONSOLES E ACESSÓRIOS, ACHEI O FORUM ALGUNS ARQUIVOS DE MEU INTERESSE E GOSTARIA DE PARTICIPAR DESSA DINAMICA, ACREDITO QUE CONSEGUIREI AJUDA E TAMBEM IREI AGREGAR EM INFORMAÇÕES PARA MANUTENÇÃO DESSES EQUIPAMENTOS. ATUALMENTE ESTUDANDO INGLÊS PARA COSEGUIR MELHOR ME COMUNICAR.Comment
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Hey, my name's Abu yusef and i decided to join because I am taking up electronics repair as hobby. thank youComment
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My name is Sergey, and I've been a radio engineer for over thirty years. For as long as I can remember, I've been drawn to the hum of circuits, the faint crackle of a radio signal, and the thrill of bringing lifeless electronics back to life. My workshop, a cozy space filled with shelves of resistors, capacitors, soldering irons, and vintage radios, is where I spend most of my days.
Each morning, I unlock the door to find something new waiting for me. Sometimes it's an old transistor radio with sentimental value, brought in by someone who remembers listening to it with their grandparents. Other times, it's a more modern device—a broken amplifier or a malfunctioning stereo system. Every piece of equipment tells a story, and it's my job to make sure that story continues.
One of my favorite recent projects was restoring a 1950s tube radio for a local collector. The parts were hard to find, and it took weeks of careful soldering, testing, and even building some components from scratch. When I finally powered it on, the warm glow of the tubes and the clear sound of music felt like magic.
But it's not just about repairs. I'm always experimenting, testing new circuits, and building small devices for fun. Recently, I designed a compact FM transmitter that I use to broadcast music in my workshop. It's nothing fancy, but it brings me joy to tinker and innovate.
What I love most about my work is sharing it with others. Neighbors often stop by with questions or to watch me work, and I'm always happy to teach them something new. Schools occasionally invite me to give talks, and I encourage young people to explore electronics—it's a field where creativity and logic come together beautifully.
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by fredyjbiplease help friends thinkpad T470 board CT470 series NM-A931 error post "bottom cover tamper detection error"
I've already
flashed the bios clean me and updated from the Lenovo site, then removed the switch and immediately jumped the S3 from pins 1 to 4, 2 to 3 but the problem remained the same, thank you1 Photo -
by fredyjbiplease help friends, I have 3 T490 units with the same case, the USB type C is completely dead, showing 20v 0 amp, loss of voltage VINT20_IN resistance to ground is fine, thank you
I think the problem is that I lost the voltage at PQ0008 pon 1 -PWRSHUTDOWN which should have been high which was picked up by R9512 VCC3SW, thank you very much for your help
PF0002 20v
PQ0005
pin 5 20v
pin 1.2.3 19.8v
pin 4 19.8
resistance
source & drain 2,4 m
source & gate 100k
PQ0006
pin 1.2.3 19.8v
pin 4 19.8v... -
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Channel: BIOS Requests ONLY!
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by fredyjbiplease help friends clean me bios x1 yoga 7th no display melody beep, thank you
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Channel: BIOS Requests ONLY!
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by fredyjbiPlease help friends, thinkpad t480 nm-b501 is dead, help me fix it, thank you
usb meter 20v 0.00 amp, after I took the VSYS measurement the drop was only `9.2v which should have been 10.2v I measured from a normal matherboard machine, the VSYS path resistance to ground diode mode is 1900 thank you
LINK to Schematic -> https://www.badcaps.net/forum/troubl...b501-schematic - Loading...
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