Hearty greetings to everyone, trust you all are doing excellently well.
Please, I have the above problem, the laptop turned on after the switch was activated but it will turns off in less than 2 seconds.
The power stables in very rare case. Once it was stabled, everything works fine.
Once the power switched is pressed, 5V and 3V were present.
The things i have done:
1. I have check for shorts on the board, but nothing. The board is short free
2. Not a power switch problem, it behaves the same without the switch ...
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Equipment Usage, Soldering, Techniques, and Reviews
Technical discussions concerning soldering techniques, usage of test equipment, how it works, what's best, and some pointers in using it all.
Topics: 1,382
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I found two capacitors on the board and one of the leads on one capacitor had bad soldering joint and the other joint connections not much better and there were several soldering joints that way to much flux around the joint redid several of them
The capacitors were a non brand that I did not recognize they got replaced and now it does not oscillating between relay but what concerns me a little bit is when the voltage is a little bit low the output voltage is around 130 volts and then drops down to 115 volts this happens around 105 to 108 volts if remember correctly
Now...Yesterday, 10:57 AM -
MSI MPG Z390 GAMING EDGE AC Motheboard Bios Bin file plsToday, 02:12 AM
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Hello Guys, I am looking for a working bios for a L15 Gen 4 ThinkPad) - Type 21H4
Machine type model: 21H4000TLM
I lost my backup and couldn't retrieve it, it's blank now since it reads all FFFFs, can anyone help me please?Yesterday, 06:46 PM -
Hello people. I trying to repair my welding machine oerlikon citomig 180mp hpf and there is a little board with blown stuff.The problem is i cant identify the value of the blown resistor and diode. Any suggestion?05-18-2024, 01:22 PM
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Hi
acer concept d intel i7 11th GH67G LA-L211P REV 1A 17-03-2021
the laptop dead by water on keyboard
i open the laptop i don't find any water on the motherboard or any damage
the laptop turn on without battery
i found shorted mosfet on smbus battery i remove it the laptop turn on with a battery but not charging
the big problem is the laptop is very slow
cpu works with low speed almost 0.7ghz
i do clean me bios but samething
what make laptop works with low profile and very slow the display takes long time.Today, 04:27 AM -
Hi to all, i have 2 of those motherboard, same model, same revision, the first one had BIOS corruption and is now working, the other one had BIOS corruption and I programmed them, motherboard starts but I only get 00 error on the 2 digit display, I have all the voltages OK and have tried with the bios chip from the working one, with same result. I have revised the socket and all the pins holes seems OK, If I put the oscilloscope in the BIOS chip I get no communication, just a straight line.
What can I look now?
I want to know if the BIOS chip should send in the pin 2...06-04-2024, 06:16 AM -
Hello forum!
I have received a lot of help here, regarding bios modding. Very thankful!
Now I have a lot of Fujitsu K557 desktops, and those have custom bios logo/custom splash screen, and I need to change them to the original Fujitsu logo.
I am looking for the easiest way, because I have about 40pcs of them, and I think there is some "official" way to do this.
I have tried a lot of Fujitsu tools, which can inject the logo to the bios file, but no luck.
Any suggestions? Thanks!06-06-2024, 11:24 AM -
Hi fellow lifesavers.
I have a Samsung washer-dryer WD80N645OOW which died mid-cycle. No response to anything, completely dead.
Checked the socket, the plug fuse, all good. Took it out to examine the boards.
There is a relay clicking on the mainboard. Upon applying power, I can see a diode flashing on inverter board, after a while a diode on main board lits up for a split second, then I can hear a relay clicking. This repeats a few times, then everything dies completely.
I've been trying to examine the main board, but it's a bit difficult becuse...06-06-2024, 09:11 AM -
Hello guys, can someone help me with an eMMC dump for a Sony KDL55W-955B TV, I tried to read the original memory with the RT809H but it shows me that it only has 1888MB even though it should have around 3.8GB. On a new memory it shows me 3776MB. From what I found on the Sony page, the following models could also be compatible:
KDL-65W955B, KDL-55W955B, KDL-60W855B, KDL-50W805B, KDL-42W705B, KDL-32W705B, KDL-48W605B, KDL-40W605B, KDL-60W605B, KDL-55W805B, KDL-42W805B, KDL-48W585B, KDL-32W706B, KDL-42W706B, KDL-42W815B, KDL-42W817B, KDL-50W815B, KDL-55W815B, KDL-42W828B, KDL-42W829B,...06-08-2024, 04:13 PM
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please help, I bought a laptop to replace the 12th generation processor, I installed a new processor, but was faced with clearing the ME region, I'm afraid that nothing will work out for me, please help, I provide the original BIOS LA-L974P Rev 1B...Yesterday, 10:22 PM
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Hi friends, I'm looking for the BIOS of a MSI laptop model MS-16K4, logic board number MS-16K41, I repaired a couple of Mosfets, now I have a black screen, the keyboard and fan turn on, but the screen is black, I want to check if it's the BIOS programming, can someone help me? Greetings.Yesterday, 09:24 PM
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MSI MPG Z390 GAMING EDGE AC Motheboard Bios Bin file plsToday, 02:12 AM
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Hi
acer concept d intel i7 11th GH67G LA-L211P REV 1A 17-03-2021
the laptop dead by water on keyboard
i open the laptop i don't find any water on the motherboard or any damage
the laptop turn on without battery
i found shorted mosfet on smbus battery i remove it the laptop turn on with a battery but not charging
the big problem is the laptop is very slow
cpu works with low speed almost 0.7ghz
i do clean me bios but samething
what make laptop works with low profile and very slow the display takes long time.Today, 04:27 AM -
Good day Brothers .
I have this HP unit that doesn't boot or display .
Model : 14S-DK1505AU
S/N: 5CG1429B8T
BOARD CODE: ASHMOR20-6050a3365001-mb-a01 14-FP5-6L-GDDR5X2
Here is my backup .
Thanks in advance !...Yesterday, 10:46 PM -
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i have a legion board nm-c221 rev 2.0
if i connect 170w charger laptop will on and 135w charger laptop wont turn on whats the problem
i check adp_id is ok i changed i/o
here is messge...Today, 02:07 AM -
Hello guys, can someone help me with an eMMC dump for a Sony KDL55W-955B TV, I tried to read the original memory with the RT809H but it shows me that it only has 1888MB even though it should have around 3.8GB. On a new memory it shows me 3776MB. From what I found on the Sony page, the following models could also be compatible:
KDL-65W955B, KDL-55W955B, KDL-60W855B, KDL-50W805B, KDL-42W705B, KDL-32W705B, KDL-48W605B, KDL-40W605B, KDL-60W605B, KDL-55W805B, KDL-42W805B, KDL-48W585B, KDL-32W706B, KDL-42W706B, KDL-42W815B, KDL-42W817B, KDL-50W815B, KDL-55W815B, KDL-42W828B, KDL-42W829B,...06-08-2024, 04:13 PM -
Hey guys! I've recently found out this amazing forum where people talk and discuss about electronics repairs and i'm actually amazed with everything that here's have to offer.
Oh well, i came here looking for a simple bios file in order to get my main laptop working again, but after a while trying to figure out what the hell was going on, i'm quite concerned that it would be worse than i tought. I was fooling around with Mr. Smokeless's UMAF BIOS mod, looking for a way to enable CSM compatibility and legacy boot on my device.
Device specs:
AN517-54-51RQ (LA-L181P)...Yesterday, 08:49 AM -
I am still working on an Lenovo e14 AMD notebook with some problems. The laptop booted normally but had a ton of problems with the soldered ddr4 memory. I tried deactivating the memory via bios, but that didn't work.
As i have a matching donor here, I decided to change the module i suspect to be faulty and exchange it with one of the donors.
Did so, but now the laptop won't boot anymore.
Anyone here who already did that and can comfirn, that exchangeing one module alone would work? Or do I need to exchange all 4 of them to make it work?Yesterday, 02:42 AM