Just to say hi hire 🙂 noob hobby electronic repair expert ,am hire because i try to repair some pc boards and pc stuff ,nice to be hire 🙂
New Members - please post your introductions here
Collapse
This is a sticky topic.
X
X
-
Comment
-
Hi folks,
I joined up looking for boardview files of many Aorus boards i have. All out of warranty and i hate having them turn to e-waste. So i will attempt to fix as many as i can. Hopefully with your help we can revive these boards and give them a new life.
Take care.
RandyComment
-
Hi guys, just decided to join your lovely forums. Hope to have some fun here as well as learn more about computer electronics and my electronics skills.Comment
-
Hello team !!
not yet in the oldman team, but doing some electronics since a very long time..
I'm looking for some help to fix a Lenovo IdeaPad 3 15ACH6 : Laptop is working, white PSU connected the 'power' led is on but there is no power throught the mosfet..
I'll check for some documentation, and if required I'll open a thread for it.Comment
-
Hello guys, I am Isaiah, I joined the forum to learn how to fix my laptop bios. Thank you so much!Comment
-
-
Hi Guys, Yato here. I´m from Colombia latam, just ending my system engineering carrer and fall in love with electronic. I get here learning how to repair computers. It's a pleasure to met you all.Comment
-
-
-
Hello. Everyone, I like the electronics, computers and an car mechanism,a little cooling
I repair for hobby. I know the windows , linux. network.
I know some analog circuits , digital , arduino (learning).
My english is'nt good.
Thanks to the creators this web.Comment
-
Hello, came here to learn how to remove a BIOS password on an HP Elitebook 645 G9. I have a weird motherboard revision where the SPI ROM chip is in a socket so the chip isn't actually soldered in. Need to research my flash tool and if I need to do the voltage mod. I found a post about Lenovo laptops that was interesting https://cybercx.co.nz/blog/bypassing-bios-password/. I don't know if new members can post links, if you google "Lenovo hardware hacking" there is an article about how some Lenovo laptops store password information in a separate EEPROM chip, and shorting the EEPROM I2C data pins can bypass the password prompt. I don't think HP laptops work that way, I couldn't identify any other flash chips besides the EC ROM chip on the motherboard.Comment
-
Hi, I own a computer repair shop and want to try to get into board repair. Here for tips, tricks, schematics, and to learn techniques. Done coding, networking, hardware, and a little of everything; but repairing actual boards is still not something I've achieved, hoping to learn that here!Comment
Related Topics
Collapse
-
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... -
by fredyjbiplease help friends x1 yoga 7th no display beep melody thank you...
-
Channel: BIOS Requests ONLY!
-
-
by fredyjbiplease help friends clean me bios x1 yoga 7th no display melody beep, thank you
-
Channel: BIOS Requests ONLY!
-
-
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...
- No more items.
Comment