unlocked KBC bin (Intel platform)
[ATTACH]n3581947[/ATTACH]

for your information, password is stored bewteen address 0x5E000 - 0x5E200. I'm not sure if it is similar for other models. You can erase it with 0xFF manually also. 0xFF stands for empty memory byteunlocked KBC bin (Intel platform)
[ATTACH]n3581947[/ATTACH]

for your information, password is stored bewteen address 0x5E000 - 0x5E200. I'm not sure if it is similar for other models. You can erase it with 0xFF manually also. 0xFF stands for empty memory byte...

Re: acer nitro 5 not powering on. GH53Z LA-L031P

Alright. I have schatic now so I can measure some stuff.
3V and 5V LDO are prsent. ACIN and EC_ON signals have both 3.3V. after hitting power button 1.8V shows up on BIOS chip and 3.3V from switching supply is also present.
After 4 seconds eveyrthing goes back to previous state.
I will probably have to reflash BIOS. KBC seems to be working fine.
Any Ideas?

Re: acer nitro 5 not powering on. GH53Z LA-L031P

Resistance 0.5 Ohms where this is basically resistance of Multimeter wires is correct?

Another question is about BIOS for Ryzen. I heard you don't have to bother about ME Region because this is not Intel platform, however I never touched BIOS binary and I don't know which parts of BIOS firmware I should move to new binary (DMI, Windows Key etc.) Does anyone have guide or instruction?

Hi
ACER NITRO 5, Ryzen platform
MB GH53Z LA-L031P
Background: Client was changing thermal paste and he didn't unplug the battery.

When pressing power button, laptop indicates blue diode and after 4seconds it is shutting down. Same behavior on battery and AC adapter.
I didn't find any shorts. What I found is missing BIOS supply (I'm not sure if this Voltage is always on), 3.3V on SuperIO chip is present (also on SM BUS).
What bothers me is very low resistance on GPU (equal to multimeter wire resistance). I got stuck. I don't have BV or Schematic....

Re: MSI z390 gaming plus no reaction to power button

Found short on chipset.
thanks

Hello all
my problem is related to MSI MB. Simply not responding on power button. I tried to manually short power pins with the same effect. I managed to start PSU by shorting PS_ON pin with GND and I started some measurements. I removed CPU, RAM and M2 drive (I left naked MB). There aren't any voltages on the board apart of PSU voltages 3.3, 5 and 12V. I wanted to flash BIOS with the programmer but unfortunately I can't extract ROM from MSI site support. There is also missing BIOS supply voltage...
My another assumption is broken SuperIO chip, but I don't have much experience with...

Re: Nintendo Switch HAC-001 - No picture, momentary backlight

I did radical cleaning of the old flux after the customer from connectors and it works.

Hello,
Nintendo switch, board HAC-001. The back light comes on and then goes off. After the reset, you can see the backlight all the time, first brighter, then dimmer.
The console came to replace the SD card slot because the customer burned it with a soldering iron and it was full of flux everywhere. By the way, he melted the blockade of one flex, but it is rather irrelevant. I am completely unfamiliar with this type of equipment but the replacement seemed simple.
After desoldering the socket, I reassembled console to check if it starts, and it doesn't. It was working before,...

Re: New Members - please post your introductions here

Hello, greetings from Poland. I always wanted to start my own repair shop of electronics, but most laptops and pc. Looking forward to look for help and help others in the future.

My hobbys are electronics, PCB design, microcontrollers programaming, Python and C# programming.

Best
M.