diff options
Diffstat (limited to 'Documentation/mainboard/lenovo/x301.md')
| -rw-r--r-- | Documentation/mainboard/lenovo/x301.md | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/mainboard/lenovo/x301.md b/Documentation/mainboard/lenovo/x301.md new file mode 100644 index 0000000000..28b512d24d --- /dev/null +++ b/Documentation/mainboard/lenovo/x301.md @@ -0,0 +1,44 @@ +# Lenovo X301 + +## Disassembly Instructions + +You must remove the following parts to access the SPI flash: + + + +* Battery pack +* Keyboard + +Its [Hardware Maintenance Manual](https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/43y9441.pdf) can be used as a guidance of disassembly. + +The WSON-8 flash chip (surrounded with red circle in the photo above, +already replaced with a SOIC-8 one) sits under a piece of insulating +tape. If solders between the chip and soldering pads fortunately +overflows beside the chip as tiny tin balls attached to soldering pads, +it will be possible to use a pomona 5250 clip to hold the chip, with +its metal tips just attached to tin balls, thus connecting the chip to +the programmer. Otherwise, it may be recommended to replace it with a +SOIC-8 one (you might need to add the chip to the IFD VSCC list), as +what is done in the photo. + +The vendor IFD VSCC list contains: + -MACRONIX_MX25L6405 (0xc2, 0x2017) + -WINBOND_NEX_W25X64 (0xef, 0x3017) + -ATMEL_AT25DF641 (0x1f, 0x4800) + +```eval_rst +:doc:`../../flash_tutorial/ext_power` +``` +Tested: + - CPU Core 2 Duo U9400 + - Slotted DIMM 4GiB*2 from samsung + - Camera + - pci-e slots + - sata and usb2 + - libgfxinit-based graphic init + - NVRAM options for North and South bridges + - Sound + - Thinkpad EC + - S3 + - Linux 4.19.67-2 within Debian GNU/Linux stable, loaded from + Linux payload (Heads) and Seabios. |