Lenovo NM-D562 v2.0 main EC programming help needed

[questore]

Hello Everyone,

I have this board that has an autostart as soon as i connect the charger (no POST) and restarts after 20 seconds. cannot be turned off.
I'm suspecting main EC firmware problem (IT8227E-192)
Since this board has only EC_KSI6 and EC_KSI7 pin on keyboard connector to the EC this cannot be programmed trought it.

I would like to know if anyone can give me instruction how to program the EC.
In the Vertyanov tutorial instructions I have seen that alternative is using 8pin direct cable soldered to board.
Anyone knows hows if that is working with ITE chips or just with ENE?
What software options i need to use?

[khaahk]

Are you sure it is 192 not 256?
You can use ite via i2c method, what's the JIG version?

[questore]

Are you sure it is 192 not 256?
You can use ite via i2c method, what's the JIG version?

I have not disassembled it yet so dont know it its a 192 or 256 I have only took a look at the 1.0 schematic and boardview
JIG is rev 4.2

[khaahk]

JIG3 and successor both support the i2c method. Connection via battery smb clk and data lines. 2 wires+gnd.

[questore]

JIG3 and successor both support the i2c method. Connection via battery smb clk and data lines. 2 wires+gnd.

OK but from where should I connect the wires and what software should i use

[khaahk]

Not sure what is JIG4.2, are you sure it is vertyanov?

[questore]

Not sure what is JIG4.2, are you sure it is vertyanov?

Now I dont know, I did not have any problem with it until this i2c.
I have ordered it from this:
ioprogrammer.com

[khaahk]

Then you have to contact the seller for software, as i understand Vertyanov has built into new version of his software a lock which might brick non-original programmer.

[questore]

Then you have to contact the seller for software, as i understand Vertyanov has built into new version of his software a lock which might brick non-original programmer.

Thanks i have contacted him and he will soon release a software update that make i2c protocol and a lot of more available.
I the meanwhile i have ordered a new preprogrammed chip and replace it... see what happens.

[questore]

Changed EC and problem is the same.

Summary:
- No short on the board.
- GPU colils and memory has no power
every other power rail present and OK
- RAM tester shows 3 missing signal on both ram slots
- The CPU coils are getting hot (45 Celsius) but CPU is cold.
- CPU coils have 0.810V when plugged in
The coils and 4 ohms resistance by default.
Is the CPU dead? could it be a 32Khz or 48Mhz crystal problem?
Anyone help me diagnose if CPU dead or broken solder bals or CPU controller faulty maybe?

[reformatt]

It's a Lenovo. Highly likely bad joints under your CPU, very common issue. Black glue makes these pretty much unworkable.

[SMDFlea]

The solder they use is made out of some type of cheese https://www.youtube.com/watch?v=rkmON6h5B0I

[questore]

It's a Lenovo. Highly likely bad joints under your CPU, very common issue. Black glue makes these pretty much unworkable.

Difference is I have got Vcore 0.810V, but of course RAM tester shows missing lines so maybe different solder joins cracked.
GPU also has no voltage.
(I have tryed 2 times removing chips with lenovo black glue and both ended up ripped pads where glue was. second was a but less ripped pads)

[questore]

I have noticed that 1,8V is present on BIOS pins except SPI_CLK.
ROM_SPI_CLK is only 1.4v is that supposed to be normal?

[questore]

Rechecked every SIO pin connection and found a lose one, altought i have checked it before when soldered.
+ Now It turns on and not restarting .
+ CPU and GPU are slowly getting mildly hot (52 celsius).
+ CPU Voltage are now 1.1V
+ GPU voltage 0.79V (i have not got this before)
After the first start the power LED on the side is constantly blinking white nonstop.
After turned off by pressing the power button 20seconds plugged in the battery and turned on laptop again the LED is now white constant and not blinking anymore.
+ The battery started to charge.
- NO POST still.
- After removing the RAM and turning on the laptop it shows no LED error code.
- No reaction to keyboard CAPS LOCK OR anything.
Any advice how to proceed?

[questore]

ROM_SPI_CK on BIOS pin #6 is 0.01v... something funky going on

[davidebeatrici]

Attached is an archive containing the dumps (UB2, UG10, UU137) from a Rev 2.0 that has a dead CPU most probably.

UG10 contains the EC firmware, you should try to flash it.