Laptop motherboard keyboard working wierdly when i press1 it types 13 when pressed q it types qwe. Have checked ec pins flashed main and ec bios but same problem
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Hello guys ,i have a dell latitude 5590 with f411p bios,this laptop has bios password ,i tried to read the bios(winbond 25q128jv) with ch341 but when goes to verify give error ,it said doesnt match .After this i flashed another bios which is cleaned and then the laptop was dead ,i tried to turn on but only white light in the buton power turned on several times and then no display at all .I had a backup and flashed again the original bios ,but this time the laptop will not turn on at all ,no light nothing,the bios original bios that i flashed was having verify error when i verified with ch341 ,i... -
Hello.
I received a bios locked 7410 with 25Q256JVEQ ,i dump the bios, unlocked it and flash it back, since then the laptop has no life signs at all except amber led on for as long the power button is pressed, nothing else.
Fact #1 i was unaware that 25Q256JVEQ is 3.3v and i used a 5v CH341A to program it, not sure if the chip got damaged but since then i can read it and write it normally, doesn't seem dead.
Fact #2 i modded the CH341A to 3.3v, same results with programming though, nothing changed.
Fact #3 i tried hard reset with cmos/main battery disconnected and power... -
Hi all!
I've got an Asus FX517ZC on the bench at the moment and I just can't figure out what's going on with it.
Here are its various numbers and identifiers:
Model short: FX517Z
Model long: FX517ZC-HN114W
SN: NANRCX01S57842E
CN: 3SDB 12M
MFD: 2022-10
Motherboard model: DA0NJLMBAE0 REV E
Symptoms:
The laptop's charge light comes on, but when the power on button is pressed nothing happens. No fan spin, no caps lock, no screen or keyboard backlight, nothing.
History so far:
The... -
Most Displays I have worked with are of course LCD Or Blueish Fluorescent Types. I Have a Marantz PMD800 tuner with sort of a white display. The display area is a sealed rectangular shape in a Glass Case. Looks like some sort L.E.D. display only not your typical section number type. I picked up this Tuner cheap as the display is very Dim. In front of the circuit is a dull red Plastic lens.
The display is very week and hard to see. I've got my DC 5 Volts allover and also a DC 32 Volt that runs some other section. Power supply looks good front to back. Not familiar with this type... -
Hi goodday to all.
I really ask for help.
There are two motherboards (absolutely identical) Acer Aspire 5 a515-52g, EH5AW LA-G521P.
Both boards have exactly the same fault symptoms. It turns on, the power indicator lights up for 5 seconds, turns off (the fan does not spin).
Both boards are flashed with Bios Main and Bios EC from the βBios Acer A515 LA-G521P FULL TESTβ topic. XM25QH128AHIG replaced by W25Q128JVSIQ (also NOR-FLASH, XM was not detected by the programmer). On one of the boards, KB9022 was changed, followed by firmware. The fault persists on both boards....
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