I have a broken e15 gen 4 AMD I want to fix or have someone fix. Doesn't power on properly just has a power light and fan spins. MOSFET PQ17 is burned out and I want to know what spec it is but I would like to have a schematic to look at or for the shop I may send it to to look at.

Hi!
Tell me a utility for recording all serial numbers in Thinkpad X1 Extreme Gen 3, I changed the EC and Think Engine BGA. The original one did not read, since the laptop did not respond even to the power button. BGA EC and second chip from disassembly taobao. Power on - ok, but all data invalid and beeps.

The search only resulted in instructions and utilities for older models. I tried to update the firmware and rollback, but the BIOS only stores the Windows license. Everything else seems to be in EC........

Hello everyone,

I need a BIOS for the Thinkpad L13 Yoga Gen 4.
S/N: PW05KQH7
Type Number: 21FR-0005GE

A recent BIOS update from Lenovo has bricked the laptop.
Currently there is no charging light.
According to Lenovo's website, the BIOS version R26ET41W/EC R26HT28W (r26uj08w) has been withdrawn due to issues with the system failing to power on after the BIOS/EC update.

Following this guide (https://www.reddit.com/r/thinkpad/co...g_and_flashing) i re-flashed my t480s BIOS using an external (CH341A) programmer. The flash didnt work, so i reverted back to my BIOS backup successfully. The BIOS in the chip and the BIOS backup file are identical according to windows' file compare. The revert, however, didnt work: the only thing the computer does is flash the power button 3 times when AC power is connected. I've tried unplugging the CMOS battery, holding the reset button and holding down the power button- no signs of life....

Hello, it seems to me that my thinkpad P50's BIOS is corrupted. I tried to boot it up and the power button would only blink 3 times green. The serial number is missing from the bottom of the chassis so I'm not sure what to do. I hope it's not the motherboard that's broken......

Hi everyone,
I've got ThinkPad T450 with the following symptoms:

After pressing power button:

• The power button lights up and stays lit for ~20 seconds
• Fan spins up immediately and spins for ~7 seconds
• Keyboard Lock buttons flash and then go dark
• Display goes from transparent to black within 3 seconds of pressing the power button and then goes to transparent again after the power LED turns off (panel shows no image, backlight is off)
• With VGA monitor I get no output either

I tried:

• Removing RAM from socket - this gives me 1-3-3-1 beep code as it should
• I measured

...

Hello,
I am looking for a BIOS for a Lenovo E15

Type:20RE-SDF05
S/N:PF-2X06VQ
P/N:SL10W47275

It failed to initialize the tpm Module and I read that flashing the BIOS can help but I can`t find a BIOS.

Thanks in advance

i have a problem with thinkpad X1 carbon gen 2 "LMQ-1MB 12298-2 48.4LY26.021"
The laptop was turned off because the MOSFET was not transmitting voltage. After checking it turned out that the gate pin on the MOSFET was the problem, because it was producing an inappropriate voltage. and it was discovered that the problem was with the Think engine, so I decided to reprint each pin, and finally the mosfet could work properly. However, there is another problem, even though the voltage has been supplied to the laptop, it still won't turn on, there isn't even an LED indicator. After double...

hello guys
i have a problem with lenovo X1 carbon gen 2 laptop, with motherboard code "LMQ-1MB 12298-2 48.4LY07.021"
The main problem is that when I plug in charger, the power LED indicator flashes 4 times, the fan spins for a moment then turns off again and keeps repeating, I've tried flashing the BIOS but the result is still the same
I hope someone can help me ​

Hello,

I'm looking for pointers/ideas:
- Lenovo Thinkpad P50.
- motherboard: BP500, NM-A451, VER 1.0
- schematics & Boardview: https://www.badcaps.net/forum/troubl...ic#post3242496

- CPU: SR2FU (i7-6820HQ)
- GPU: N16P-Q1-A2 (Quadro M1000M)
- MEC1653-BA1

When I switch on power supply motherboard take maximum 0.070A (without battery), LED1 is on after few second drop to...

My first post here, I hope I'm doing everything correctly (someone correct me if I am not)
Need BIOS for Lenovo Thinkpad E15 Gen 2 20TDS0FP00
My current bios is corrupted and the system will not boot
Serial number PF395RJJ​

Good day. I apologize if I posted this in the wrong topic. I saw somebody selling a Thinkpad E495 with a Ryzen 3500U CPU near me. In the pictures the laptop is running windows 10. I contacted the seller and asked a few questions about upgradability and if it has a bios password on it. He confirmed it has a bios password. I searched through the forum, I found a guide regarding removing the bios password using the autopatcher, I also found a thread with the e495 where people requested help with unlocking the bios password.

I have a few questions:

• If I would buy this laptop and have

...

please help me, my laptop lenovo thinkpad x380 bios locked , can anyone help me ?, i don't understand about this laptop