Hi, a friend of mine give me a Acer Veriton n4640g with a bios locked password, and unfortunately he don't remember the password anymore.
I hope someone can help me with how to get the password or to remove this bios password...
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ncp81208 datasheet
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by stj
03-11-2024, 12:22 PM
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Have just a general computer question, post it here. This can be anything from an OS issue, hardware issue not related to capacitors, upgrade question, or whatever basic tech-related issue is on your mind.... This is also a good place to share your tech projects!
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buv18a transistor sub
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Security camera linking remotely to NVR
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Clevo 6-71-NL4L0-D02 schematic
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Dell LED Monitor Model SE2717H
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Technical discussion for power supplies. This covers PC supplies, and any other related power supply issue. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
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Suspect Bad PS Apple AcBel API 1PC36
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Need Canon G2020 Dump file
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Creative Gigaworks S750
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Equipment Usage, Soldering, Techniques, and Reviews
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Badcaps Statistics
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Topics: 101,424
Posts: 1,259,746
Members: 486,828
Active Members: 16,975
Welcome to our newest member, kef sagat.
Latest Topics
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by signal.questI have a Panasonic LED TV TC-40A420U. The TV was given to me as an attempt to fix or throw out. I replaced the Backlight LEDs and now the screen lights up, but there is no image/display. If I play with the up/down buttons I can get the display to change from black to garbled. I can't get sound from HDMI but not sure of what input is selected. I have no remote control. When I connect a laptop to the HDMI ports it recognizes a Panasonic TV for display and sound output but I can't see or hear anything through the TV. This makes me think the mainboard is OK, but not sure if mainboard can...2 Photos03-17-2024, 10:14 AM
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by KABYhello every one
i have bought seconde hand chromebook i fund that its locked by administrator by serial number can someone help me with this
i tried rcunlocker nothing happend enrollment dev mod nothing CHANGED IN bios
when i change serial number laptop wont turn on ( i change only one number in bios bin not everythin)
can someone help me with it!!!!
the serial number is NXHKAEF006321039717600
ORIGINAL BIOS BIN...-
Channel: BIOS Requests ONLY!
Yesterday, 10:34 PM -
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by reformattTrying to identify where to source the LCD connectors on the motherboard side for a HP 14-cf2051la. This one came in with liquid damage to the connector and the flex cable. It appeared to clean up ok, however customer says that display blanks out intermittently. It's a 30 pin EDP flat ribbon cable on motherboard side. Believe it to be a HEDWIG-6050A3155301-MB-A01 motherboard.
I've stolen the connector from another HP motherboard which matches up but it's not the best since it's been kicking around my donor pile for a while. This connector is different to most flip type ones I have...03-25-2024, 08:29 PM -
yesterday i bought this [ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"251","title":"corrossiom.png","width":"354","data-attachmentid":3238358}[/ATTACH]
I was not high on caffeine but the specs we nice-[LIST][*]Processor: AMD Ryzen 5 4600H 6 x 3 - 4 GHz, Renoir-H (Zen 2)[*]Graphics adapter: AMD Radeon RX Vega 6 (Ryzen 4000/5000)[*]Ram: 16gb DDR4[/LIST]so i bought it now i need schematics and help trouble shooting this all i saw is this burned cap idk what...03-19-2024, 05:00 AM -
by jamespI have a dead laptop with mainboard model GS452/552/752 nm-c781 rev 1.0, i have initiated troubleshooting with the use of digital multimeter. checked voltage signals up to PM_SLP_S3#, found out that before PM_SLP_S3# signal , a PBTN_OUT#_R signal has 3.2 volt state and after pressing power on, PBTN_OUT#, It drops to logic level zero for around 12 secs and then back again to 3.2v for 6 secs. it will loop like that until you pulled out the adapter power. during loop the PM_SLP_S3 and S4 SIGNAL has no output. (0 volt ) may i ask for help to anyone with this kind of board and same kind of problem....1 Photo03-18-2024, 08:17 AM
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by JohnWangI recently bought a hp workstation on marketplace. I think i got scamed. I ending up with a sample mechine? It has a QS CPU in it. But now there is a very annoying warning message every time I boot up
Is there anyway I can remove this? I see some forum post that mention about sssm.bat. But can anyone provide more detail about it?
Thanks
John​
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"5eaffde9f87f2cd3a7e7bc47d7d864e.jpg","data-attachmentid":3243471}[/ATTACH]...Yesterday, 08:42 PM -
by ttjj2352Hi there,
HP Dragonfly 13.5inch G4 Notebook PC
13th Gen i7-1355U
I have incorrect mpm details and need to replace please. Need to unlock MPM please so I can use BCU or NBDmiFit to write correct model number back into BIOS.
BIN attached please thankyou...-
Channel: BIOS Requests ONLY!
03-12-2024, 07:09 PM -
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by Raven95hello everyone does anyboby know where i can get the boardview of the gtx 1070 gigabyte g1 rev2 ?1 Photo
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Channel: BIOS & Schematic Requests!
03-24-2024, 02:19 AM -
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by KxngCrooked8Hello,
I have an old(er) LG 49LJ550M-UB that I'm looking to convert into a light source/audio player.
The only issue I'm currently experiencing is that I can't get the LED's to stay on permanently. I still have the intact LCD panel and have fiddled with all of the settings trying to get the LEDs to stay on with no luck. In lieu of that working, I'm hoping to trick the power board into keeping the LED's on. I think that I've found the correct signal that I need to send, >3V to the PDIM pin on the P201 connector on the power board. But I'm not sure where to grab...2 Photos03-19-2024, 03:14 PM
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by samstownHello,
I have this Hiopos Cash system running on android that stopped working without notice. The power supply is ok, there's light on motherboard but when pressing power button it doesn't turn on.
I've google for schematics but no luck. Motherboard is S2802_V1.3B. I've took some measure and maybe it could be a transistor, the one I am pointing on with the orange arrow on the pics. Does anyone knows this board ?
Thanks
Sam...Yesterday, 07:26 AM -
by Taurus12Hi, a friend of mine give me a Acer Veriton n4640g with a bios locked password, and unfortunately he don't remember the password anymore.
I hope someone can help me with how to get the password or to remove this bios password...-
Channel: BIOS & Schematic Requests!
Today, 12:04 AM -
-
by KABYhello every one
i have bought seconde hand chromebook i fund that its locked by administrator by serial number can someone help me with this
i tried rcunlocker nothing happend enrollment dev mod nothing CHANGED IN bios
when i change serial number laptop wont turn on ( i change only one number in bios bin not everythin)
can someone help me with it!!!!
the serial number is NXHKAEF006321039717600
ORIGINAL BIOS BIN...-
Channel: BIOS Requests ONLY!
Yesterday, 10:34 PM -
-
by bohabohaOn this set new LED strip. Backlight on but no image
have discovered very hot ic in red market in the picture plus some capacitor that are shorted on mainboard ,3v,5v,and 12v is in present want help deciding which is the bad boy...03-26-2024, 05:27 PM -
by JohnWangI recently bought a hp workstation on marketplace. I think i got scamed. I ending up with a sample mechine? It has a QS CPU in it. But now there is a very annoying warning message every time I boot up
Is there anyway I can remove this? I see some forum post that mention about sssm.bat. But can anyone provide more detail about it?
Thanks
John​
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"5eaffde9f87f2cd3a7e7bc47d7d864e.jpg","data-attachmentid":3243471}[/ATTACH]...Yesterday, 08:42 PM -
by frankusbThe receiver is going into protect mode when switching inputs or enabling/disabling A or B speakers on the front panel. I removed the protect signal from the main microprocessor and the system played normally on FR and FL speakers from an analog input. I measured the protect signal and it's attached.
[ATTACH=JSON]{"data-align":"none","data-size":"thumb","data-attachmentid":3242189}[/ATTACH]
I checked the idle current adjustment on each of the 5 channels and adjusted them slightly (less than 2mV). I checked the DC offset...-
Channel: Troubleshooting Audio Equipment
03-25-2024, 02:11 PM -
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by tec3000Hi community! Germany calling I am wondering if you guys can help me out. I have an issue with my Sony LED TV. I've been told this is a good place to ask. Thanks for anyone who will reply and offer advice. Appreciated!
I have a KD-65X9005A Sony 4k LED TV. For a few weeks I've got this problem where I turn on the TV and within a few seconds the TV starts getting darker until it shuts itself off and I get the 4 blinking error code. HOWEVER there is one exception: Whenever I switch to the i-Manual, a full screen on-screen instruction manual, the TV never turns off. I tested for hours!...03-20-2024, 07:29 AM -
by Donny2derbyHi again all. Picked the above model up a couple of days ago. Information was that it just stopped working all of a sudden. Was from a nice house with no kids or pets and no reason to think it's suffered impact damage.
Working my way through it. I get a flashing silver light on the front which indicates an attempt to start?? Then it turns off and doesn't attempt to reboot.
Had the back panel off and with the plugs disconnected to the backlights, on the connectors I'm getting 63v DC on CN 6801 and 4.0v DC on all pins on CN 6802. All except the not connected ones I should...2 Photos02-21-2024, 03:56 PM -
by x16Hi,
i have 2 32MB dumps of my 840 G8. Can anyone help me to unlock it?...-
Channel: BIOS Requests ONLY!
05-22-2023, 06:41 AM -
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by sherifuHello guys, i have an Macbook Air A1466 Emc 3178, board number 820-00165-A and i encountered following problems. At first no light, no power..after opening and cleaning the LCD socket(Red dot under LCD plug and also Orange dot near wifi card)..got light on charger, fan working and chime...Tried several times and working, then short time after dead...next day work again for short time...after removing the board and cleaning the back(rust on components) with alcohol and soft brush, one of the resistor is gone and no power ..I want to change 5 (buy from China) of them (1 missing and 4 bot looking...1 Photo03-26-2024, 04:54 PM