mec 16xx dump with info block

[coolshrimp]

Re: mec 16xx dump with info block

This resistor needs to be moved from red to yellow position.
If you cannot read after that, chip is locked. Just write extracted dump from bios update and it will be ok

do i leave my jumper in place?

[coolshrimp]

Re: mec 16xx dump with info block

This resistor needs to be moved from red to yellow position.
If you cannot read after that, chip is locked. Just write extracted dump from bios update and it will be ok

No luck do I remove both resistors?
Seems red line and resistor bellow it both bridge the same trace.

[exe557]

Re: mec 16xx dump with info block

No luck do I remove both resistors?
Seems red line and resistor bellow it both bridge the same trace.

The resistor will be on the red marked one and act as PULL UP resistor. You need to move it from red position to yellow to make it PULL DOWN.
Not remove it!

[volinakis]

Re: mec 16xx dump with info block

exe557 is right. Remove RST wire from JTAG connector, put pull up resistor in the place he indicated, choose MEC1633 in RT809H, plug in AC adapter then you can read MEC. After you read it hit erase, unplug ac adapter, leave it 1-2mins, plug in again ac adapter and write back the dump you saved. Then put back pull up resistor. You have all this infos here if you bother to read it.

[coolshrimp]

Re: mec 16xx dump with info block

exe557 is right. Remove RST wire from JTAG connector, put pull up resistor in the place he indicated, choose MEC1633 in RT809H, plug in AC adapter then you can read MEC. After you read it hit erase, unplug ac adapter, leave it 1-2mins, plug in again ac adapter and write back the dump you saved. Then put back pull up resistor. You have all this infos here if you bother to read it.

Ok Iv done that and still won’t read.
I tried erase as well it also just gives same chip error 0xFFFFFF.

Rst wire removed.
Pads (1-5) connected to RT809h (no resistors inline)
Moved red resistor to yellow position
Board is powered (leds on and I read 3.3v on pad 6)

I also read ever post in the thread and tried all and nothing has worked so far on this stubborn chip.

[exe557]

Re: mec 16xx dump with info block

Do you still have the jumper on rst in place?
I always keep RST line connected to RT908. Try without your jumper.

[coolshrimp]

Re: mec 16xx dump with info block

Do you still have the jumper on rst in place?
I always keep RST line connected to RT908. Try without your jumper.

I got it!

you said to move resistor from red to yellow i did and still didnt work.
So i held a spare 10K resistor in place on the same yellow point and suddenly it reads now, I stopped holding my 10K and now it works fine.

[coolshrimp]

Re: mec 16xx dump with info block

Ok now that that is solved ill share my diagram and instructions.
T14s - MEC-1663 - Jtag - Pinout - Bios Password Removal



Now next issue setting Serial / Model / Etc.
Lenovo T14s (NM-B891)
Iv Tried to Use Lenovo Maintenance Utility 1.89 (i7tm38us)
But I get and error *EEPROM Overflow

Same issue here: https://www.badcaps.net/forum/showth...EPROM+overflow

[coolshrimp]

Re: mec 16xx dump with info block

To set the Serial Number, Model on my Lenovo T14s:

I Used "ThinkPad Config Information Update Utility v1.11" attached

-Extract and run "usbfmtpw.exe" this will format your USB and copy the files over.
(check that the files copied after format. if not manually copy them to the root of the usb).
-Insert to laptop and boot to USB FDD it is EFI not Legacy (USB you just created).
-Now go 1, then use 2 to read current keys. record any keys shown, take a photo of them they will be erased if there not already.
-Now go back to main menu and choose initialize EEPROM, this clears all keys plus UUID and now the overflow error wont happen.
-Now go 1, then use 1 again to add new info, enter C0 then Enter.
-Now enter serial and model in long form will start with 1S so (1STTTTMMMMCCSSSSSSS)
-Enter and Key is stored.
-If you like can add more or go back and use option 3 for a few more config details. (I set my brand name there)
-Once all info is set go to assign UUID, and say Yes.
(once you generate the UUID you cannot edit the serials unless you initialize and do them all over again.
-Reboot and check bios screen your info should be there no more beeps on boot.


Product ID: TTTT-MMMMCC
Serial#: SS-SSSSS

TTTT = Machine Type
MMMM = Model Type
CC = Country Code
SSSSSSS = Serial Number

[volinakis]

Re: mec 16xx dump with info block

I got it!

you said to move resistor from red to yellow i did and still didnt work.
So i held a spare 10K resistor in place on the same yellow point and suddenly it reads now, I stopped holding my 10K and now it works fine.

That means you didn't solder properly 10k pull up resisto when you move it.

[coolshrimp]

Re: mec 16xx dump with info block

That means you didn't solder properly 10k pull up resisto when you move it.

possibly its so tiny. but it finally worked.

[takura]

Re: mec 16xx dump with info block

I managed to read the MEC1663 with an RT809H JTAG and then wrote back the backed up file and the machine is now booting without password but the DMI information is missing.

[coolshrimp]

Re: mec 16xx dump with info block

I managed to read the MEC1663 with an RT809H JTAG and then wrote back the backed up file and the machine is now booting without password but the DMI information is missing.

https://www.badcaps.net/forum/showpo...&postcount=289

[mesdova]

Re: mec 16xx dump with info block

NEED THE PIN conect JTAG MEC-1653 T580
ThinkPad T580 17812-1
448.0CW18.0011

[AAAC]

Re: mec 16xx dump with info block

@mesdova
It will be a lot more easier if you do the BIOS patch, which is supported on ThinkPad T580.

[mesdova]

Re: mec 16xx dump with info block

Because I placed a new EC MEC1653 And I wante to reprogram it

[coolshrimp]

Re: mec 16xx dump with info block

NEED THE PIN conect JTAG MEC-1653 T580
ThinkPad T580 17812-1
448.0CW18.0011

Here is the boardview and schematics.
https://www.badcaps.net/forum/showthread.php?t=104317

If you're not sure how to figure out with the files above let me know I could take a few min and figure it out for you.

[mesdova]

Re: mec 16xx dump with info block

THENK YOU coolshrimp
let me know Pictures pictures pin conect

Where is

[ymifdal]

Re: mec 16xx dump with info block

clean MEC1633 dump for T440 anyone?

[coolshrimp]

Re: mec 16xx dump with info block

NEED THE PIN conect JTAG MEC-1653 T580
ThinkPad T580 17812-1
448.0CW18.0011

Move Resistor R6140 to R6117 to enable Jtag R/W.
Return resistors to original configuration for normal operation.