problem with io chip
hi everyone i have laptop 450 g3 problem with IO chip is damage . chip damage is NPCE586HA0MX CAN I CHANGE WITH NPCE388NA1DX
-
This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.
There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as... -
Hello everyone,
I'm trying to flash the BIOS chip Macronix MX25L6445E from my ASUS X455LD laptop using both a CH341A and an EZP2019+ programmer, but I keep encountering issues.
Reading the chip works perfectly, and I can extract the BIOS dump without any problems.
However, erasing and writing fail every time, regardless of the software I use. (Neo, asprog, ch341, etc)
I also tried applying 3.3V to pin 3, but it still didn't work.
I attempted to unprotect the chip, but when I read it back, the registers remained unchanged.
... -
Long story short:
- dad converted Asus Chromebox CN62 into Windows compatible, with mrchromebox BIOS, years and years ago
- gave the computer to his son a couple years later
- son now decided to revert it to Chrome OS, to sell it as original (re-writing BIOS with the backup one created by his dad)
- too lazy to remove the board from the case, thought a voltage regulator was the BIOS chip (you know... it has 8 legs)
(seems like the story was not that short)
He used alligator clips to read the chip. No luck reading it. Removed chip and placed on a SOC-8... -
Hello guys, I'm trying to fix this laptop hp 15-cs003, which when i removed the battery it suddenly stoped turning on and even the led, which indicates that's charging isn't turning on.
I am trying to fix it, and i found a problem with this chip "AWVAAH", which I can't find on the internet or AliExpress, anything...
I found some chips that look like that, but nothing equal.
Can someone please help me find this "AWVAAH", i will show a picture of him.
Thanks a lot for the help!... -
Dear Community,
I would need help for the following case:
Lenovo Legion Y530-15ICH - 81FV
BOARD#: EY515/EY517/EY519/EY520 NM-B701 REV: 1.0 2018-03-21
Problem: device went off during office work. (no hard game playings before). No LEDs, no charging, nothing. Analisys showed the IT8226 SIO 3.3v is shorted, therefore I oredered a pre-programmed one from a reputative seller electronicloop.
After replacement 3.3v got available but I still have no LEDs, no charging circuit voltage...nothing.
The EC soldering verified dozen of times -no moving or shorted...
Comment