Hello, this Asus laptop model FA707NU-DS74 has password which prevents computer from booting past it.
S/N: R3NRCX04A476126
I extracted current BIOS from a chip XMC 25RU256CXIQ (1.8V) sitting close to the CPU heatsink.
Please, help me remove the password. Thank you....
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-
Today, 01:30 AM
-
Hello. Please help. la-g07jp rev1.0 does not turn on. The 3 and 5 volt alarm goes up for 2 seconds and goes out. I opened the 3 and 5 volt power jumpers, removed the pu302, flashed the multimcontroller with different firmware, nothing helped. I noticed that on the u4104 the output is 1.5V, this voltage goes to the combined processor. Should there be such tension there?Today, 01:01 AM
-
-
Hello,
I have this HP 17-cn1008cy laptop with corrupted BIOS. On boot the message comes up and states that BIOS is corrupted.
Normally, I would download the bios file from HP website but for some reason their software does not run when clicked on it (winflash.exe file). So, I need your help.
S/N: 5CG1425NHD
ProdID: 552Y1UAR
BIOS file is attached. Thank you....Yesterday, 03:01 PM -
Greetings, i just decide to upgrade 8gb on board ram in my dell 5290 2 in 1, is it possible if i just swap the ram chip to 16gb or i should swap the other else like resistor or something. Please help me guys, thank you.
Just for information, my dell 5290 2 in 1 is using SAMSUNG K4E8E324EB-EGCF chip, this is 8gb chip ram.
SERVICE TAG: 160LHR2
Thank you so much.
I'm so sorry if my english isn't clearly.Yesterday, 08:56 AM -
Please can someone tell me the chemical that can be apply to dissolve glue that used to hold the type C chip and SSD storage chip MacBook 2017 touchbar on the board.
Please i need a prescription of that chemical. i will be very glad if someone can help me out on that05-04-2024, 07:46 AM -
Hello
I'am a beginner in electronics repair and i got some trouble to find what's goning on a computer. It is a lenovo yoga C940-15IRH laptop and the screen doesn't work anymore, but that work on an external one
the screen seams to be hard to unbuild properly so i want to test it by other way
how can i be sure if the signal is really send to the screen ? i did some check on screen connector on LCD1 got 19v and on MiC1 connector on the other side of the screen (dunno if it's for the screen itself or other thing) got a lot of 3.2v pin
did u got...05-04-2024, 10:00 AM -
The laptop won't start. When plug power supply, on 19V in gives me 0,14A, without turning on the laptop.
I check it with thermal camera, and there is one resistor that is very hot, I change the resistor with new on but the result is the same.
In the attachment there is schematic of the resistor area, and schematic of the laptop.
I can't understand, why this resistor is getting so hot....Yesterday, 01:24 AM -
Hello, I was updating the bios on my t470 20jn pf1q6dx5 using the soic8 clip that came with the Ch341A on the bios and pressed the clip too far back when i was taking it out and it knocked off what look like little capacitors, can this be repaired or bypassed with solder or a wire or what was originally on there, they are extremely small. I have attached two pictures, one with the capacitors on and one with them off. It took me weeks to figure out why the board wouldn't power on. I thought I had broke the bios. THe machine turns on for a second then turns off.
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"632","title":"Broke...Yesterday, 03:14 AM -
I've had this [URL="https://www.panasonic.com/global/energy/products/eneloop/en/lineup/charger-bq-cc63.html"]Eneloop charger [/URL]from new, and it works fine but has always made a really irritating ticking sound roughly once per second when more than one battery was inserted. I found the noise to be coming from the OB5222AG PWM DIP-8 IC. I tried replacing it with an identical part - the problem persists but rather than a ticking, it now sounds like a squeal. The problem is there are no spec sheets for this IC [I]anywhere[/I] and no information besides it being a PWM IC, so I have no...05-03-2024, 10:08 AM
-
Hi All
Been a while since I have been here, and a bit rusty.
I have the above laptop motherboard that was working and now the charging circuit is faulty.
Have 19v in fine until it hits PU4403 - not shorts I can see and thermal cam reveals nothing.
I have swapped out the ISL9538 and also the two mosfets (PU4403 and PU4405). Have 2.8v at the power switch, which pulls low when pressed - charging light comes on and goes straight off
Below are measurements (pin names are per the datasheet for the ISL95338 (couldn't find one for ISL9538,...05-03-2024, 03:25 AM -
The laptop won't start. When plug power supply, on 19V in gives me 0,14A, without turning on the laptop.
I check it with thermal camera, and there is one resistor that is very hot, I change the resistor with new on but the result is the same.
In the attachment there is schematic of the resistor area, and schematic of the laptop.
I can't understand, why this resistor is getting so hot....Yesterday, 01:24 AM -
Hello. Please help. la-g07jp rev1.0 does not turn on. The 3 and 5 volt alarm goes up for 2 seconds and goes out. I opened the 3 and 5 volt power jumpers, removed the pu302, flashed the multimcontroller with different firmware, nothing helped. I noticed that on the u4104 the output is 1.5V, this voltage goes to the combined processor. Should there be such tension there?Today, 01:01 AM
-
-
polaroid TQLHD24PR004 no power
hi, my tv no longer starts like dead, no standby led
motherboard : MS36639-ZC01-01
panel : V236BJ1-P01
flash spi: GD25Q64
need usb firmware or to reprogram​Yesterday, 08:40 AM -
See the attached drawing of the chip I am trying to identify. I think the last character (the 'H') may actually be the manufacturer logo, but I am not sure.
This chip is part of a hand held device that detects metal. Its called a pinpointer, and is used in the metal detecting community. The chip is located on the main power rail which is from a 9 volt battery, noted in the drawing.
I tried many searches to find the part, but did not see anything that looked close. But then I have very little experience doing this and I could have easily missed something obviou...Yesterday, 07:27 AM -
Please help sir, this board does not turn on because VSYS_OUT is 9.2v, I compared it with a normal board VSYS_OUT is 10.2v, I have replaced the PQ101 and PQ102 mosfet and BQ 25700 which is known to be good, but the results are still the same, thank you
VSYS_OUT 9.2v Meter in resistance mode auto range 6M ok
NORMAL BOARD 10.2V
PQ101
PIN 2 20V
PIN 7 0.004V
PIN 6 6V
PIN 5678 0V
PQ102
PIN 567 0V
PIN 9 0.004V
PIN 234 9.2V (VSYS_OUT)
PU101 BQ25700ARSNR
1 VBUS 20V
2 ACN 20,21V
3 ACP 20,21V...Yesterday, 05:30 AM -
Please Need to unlock this BIOS
Motherboard x1403za rev 2.2
ASUS Model : X1502Z
S/N : R5N0CV10N87020D...Yesterday, 04:22 PM -
Hello,
I have this HP 17-cn1008cy laptop with corrupted BIOS. On boot the message comes up and states that BIOS is corrupted.
Normally, I would download the bios file from HP website but for some reason their software does not run when clicked on it (winflash.exe file). So, I need your help.
S/N: 5CG1425NHD
ProdID: 552Y1UAR
BIOS file is attached. Thank you....Yesterday, 03:01 PM -
Where do I get the software for Sony / Hisense tvs to install to emmc?05-04-2024, 12:10 PM