Sorry for the long story. I have a Dell Latitude 5530 (i7) laptop (South Peak 15 MLK MB DDR4 203102-1 FK8VG$JA) with an admin BIOS password that I want to remove. Service Tag: HYKFPT3. Other than that the laptop worked OK.

I found a CH341A Black and went looking for the BIOS chip on the motherboard. After trying to read one chip that was a firmware chip but not the BIOS I think I found the BIOS chip labeled Winbond 25Q256JVEN. Altogether I think I found 4 different firmware chips in the laptop. The BIOS chip is a WSON8 6x8. I used the CH341A, NeoProgrammer, and a cheap pogo pin clip...

Hello, first of all, excuse me, I am using the translator, English is not my native language.

I have a Lenovo ideapad 330S - 14IKB laptop.



The tablet did not recognize me when I connected it, so I checked the device manager and I realized that there were many with the exclamation mark, so one by one I began to update their drivers until the sign disappeared of admiration, I even updated the BIOS, and the laptop rebooted normally and worked, so far so good, but the tablet still did not recognize me, I read on the internet that it could be due to a...

Hi everyone,

I have been doing hardware repair as a hobby for some years now and recently decided to learn about repairing laptops as a fun challenge.

I managed to get my hands on a "HP Pavilion Gaming 15-ec2523nd" notebook that only shows a white power LED and doesnt respond to anything.

After initial testing I concluded the bios seems to be corrupted since all voltages are normal and there are no shorts. HP has a feature for a bios restore from USB with winkey+B for this model. This did not work.

I have desoldered the bios chip (GigaDevice...

I have a laptop which i am trying to fix in which user enabled overclocking from bios and now it does not post.
Laptop with battery only: when power button pressed, power led lights for 10 seconds then turns off
Laptop with charger: white led in the charger and battery is charging, when power button pressed power led lights and it wont turn off

With multimeter i checked and i found out that:
EC chips gets 3.3 volts and it is not shorted (also no shorts on the board too)
Cpu power rail is fluctuating between 0 and 300 milivolts when charger is connected
...

Lenovo IdeaPad 3 15ADA05 (81W1) — cannot enter BIOS, system always boots in Legacy mode

Hello.

I’m trying to diagnose a Lenovo IdeaPad 3 15ADA05 (Model 81W1).

Hardware

Model: Lenovo IdeaPad 3 15ADA05 (81W1)

BIOS version: E8CN34WW

Internal drive: NVMe SSD (detected normally)

Symptoms

BIOS Setup is almost impossible to enter.

Pressing F2 during power-on usually freezes on the Lenovo logo or is ignored.

The Novo button opens the Novo Menu, but selecting BIOS Setup...