Lenovo IdeaPad 5 2-in-1 14IRU9 / 16IRU9 bios

[3pka]

sorry boring again on this thread... i send messages to other users experiencing the same issue without any reply...
checked everything on the board ... switchings... magnetic sensor.. voltages.. everyhting seems ok...
the chipset is powered, the EC is powerred.. 3.3v and 5v are ok.. 1.8V is ok... no shorts... no burned things.. the 3.3 LDO is present...
pressing power button there is activity (3 restarts) .. but after a while the current consumtion become 0.043A... and nothing changes.

anyone has a dump of the 2 eeprom ( from another laptop?) for me looks like a bios/EC issue.

I have same issue. I suspecting EC (ITE IT5571E-128) stucked at S0 state or firmware corrupted. Checked rails and physical damages on board but actually nothing wrong found. If you find something new write here pls bro.

[Assembler]

i will,, same here.. no damages no water spils...nothing i'm thinking to start a repair thread on the forum for this model.

[igeektech]

Experiencing issue of Power button LED and Charging LED Flashing fast for about 10 seconds then stops, hit power button LED stays on for 3 seconds then off and does nothing. Occurred after failed firmware update.
SN: MP2GPRAA
Lenovo Ideapad Slim 5 16IRU9

Any help would be appreciated.

[Sparo]

Experiencing issue of Power button LED and Charging LED Flashing fast for about 10 seconds then stops, hit power button LED stays on for 3 seconds then off and does nothing. Occurred after failed firmware update.
SN: MP2GPRAA
Lenovo Ideapad Slim 5 16IRU9

Any help would be appreciated.

Hi First Try flashing ONLY the 16MB "Chip firthest from CPU"
If it doesn't work then flash both and give feedback

Lenovo IdeaPad Slim 5 16IRU9 - Type 83FW
Lenovo IdeaPad Slim 5 14IRU9, 16IRU9
Machine Type Model 83FW0001US
BIOS Version PFCN18WW
WinKey/DE000-DE030
DMI/2D000-2EFFF

[igeektech]

Tried the first one, didn't work. Tried the second after and same thing. I'm using CH341A reader with NeoProgrammer. On the 8MB chip it doesn't auto detect — I use W25Q64JV as default

[trepachka]

In case anyone is interested, I am attaching both bin files extracted from a functional IdeaPad 2-in-1 16IRU9 notebook with S/N YX0BE1NX (Type 83DU).
I verifed both files work by flashing both bios files onto another laptop that was not posting and drawing about 0.2A at any time. I am also posting a photo showing both bios chips' position on the motherboard.

There is inherent issue with Lenovo models having "IRU" in their model name which I posted on a different thread. When flashing bios files belonging to another computer, you also have to flash the contents of the EC chip from that computer as well. Otherwise, as I found out, computer will not recognize the NVME drive after starting computer by pushing the power button. It will work fine after pushing "Cntrl"-"Alt"-"Del". This happens every time. Unfortunately, I do not have the tools to extract the EC chip contents.

But go ahead and try the attached files and please report if they helped you.

[reformatt]

Have one of these on the bench. It appears to loop continuously when powered on between 40ma to 80ma via USB-C. All the main power rails appear to be there but there is no RAM power enabled, and therefore nothing beyond that. No schematic but have dumped both BIOS IC's on the board. There is no serial number or anything else on the base plate to provide.

What is new to me is that this is an Intel CPU but the dumps don't conform to any structure that I'm used to to work out if it's corrupt or not. Looks more like an AMD dump. Any both files attached.

[danito]

Have one of these on the bench. It appears to loop continuously when powered on between 40ma to 80ma via USB-C. All the main power rails appear to be there but there is no RAM power enabled, and therefore nothing beyond that. No schematic but have dumped both BIOS IC's on the board. There is no serial number or anything else on the base plate to provide.

What is new to me is that this is an Intel CPU but the dumps don't conform to any structure that I'm used to to work out if it's corrupt or not. Looks more like an AMD dump. Any both files attached.

try
sn - YX0B1GYF

[reformatt]

try
sn - YX0B1GYF

Thanks, I did try it but behaviour didn't change. I don't have a schematic, but believe its missing a signal from the PCH (like PM_SLP_S4). The laptop has been dropped so suspecting bad balls under the CPU. Laptop was donated as not working so goes to the donor pile.