Pixelbook 2017 downgrade touchpad firmware error despite

[gibwise]

I have take off battery to disable the write protection. And I stll cannot downgrade the touchpad firmware. sudo ./flashrom -p host -p ec:type=tp -i EC_RW -w -o rose_v1.1.8546-ee1861e9e.bin flashrom v0.9.9 chromium.googlesource.com/chromiumos/third_party/flashrom : 75a34ae8 : May 19 2020 02:06:04 UTC on Linux 4.16.18-galliumos (x86_64) flashrom v0.9.9 chromium.googlesource.com/chromiumos/third_party/flashrom : 75a34ae8 : May 19 2020 02:06:04 UTC on Linux 4.16.18-galliumos (x86_64) Calibrating delay loop... OK. coreboot table found at 0x7aa99000. Found chipset "Intel Skylake". Enabling flash write... WARNING: SPI Configuration Lockdown activated. OK. Error: Programmer initialization failed.

flashrom v0.9.9 chromium.googlesource.com/chromiumos/third_party/flashrom : 75a34ae8 : May 19 2020 02:06:04 UTC on Linux 4.16.18-galliumos (x86_64) flashrom was built with unknown PCI library, GCC 7.5.0, big endian Command line (10 args): /tmp/flashrom -p host -p ec:type=tp -i EC_RW -w -o /tmp/flashrom.log rose_v1.1.8546-ee1861e9e.bin Acquiring lock (timeout=180 sec)... Opened file lock "/run/lock/firmware_utility_lock" Lock acquired. disable_power_management: Disabling power management. Calibrating delay loop... OS timer resolution is 1 usecs, 3181M loops per second, 10 myus = 10 us, 100 myus = 100 us, 1000 myus = 998 us, 10000 myus = 9981 us, 4 myus = 4 us, OK. Initializing internal programmer Found candidate at: 00000500-00000528 Found coreboot table at 0x00000500. Found candidate at: 00000000-000004d0 Found coreboot table at 0x00000000. coreboot table found at 0x7aa99000. coreboot header(24) checksum: d914 table(1208) checksum: 905d entries: 40 Vendor ID: Google, part ID: Eve Using External DMI decoder. DMI string chassis-type: "Convertible" DMI chassis-type is not specific enough. DMI string system-manufacturer: "Google" DMI string system-product-name: "Eve" DMI string system-version: "1.0" DMI string baseboard-manufacturer: "Google" DMI string baseboard-product-name: "Eve" DMI string baseboard-version: "1.0" get_target_bus_from_chipset() returns 0x10. Found chipset "Intel Skylake" with PCI ID 8086:9d24. Enabling flash write... BIOSCNTL = 0x8b: BIOS Lock Enable: enabled, BIOS Write Enable: enabled SPI BAR is = 0xfe010000 GCS = 0x8b: BIOS Interface Lock-Down: enabled, Boot BIOS Straps: 0x0 (SPI) SPIBAR = 0x00007f7702ffa000 + 0x0000 ich generation 16 0x04: 0x3f00f800 (HSFSC) WARNING: SPI Configuration Lockdown activated. 0x08: 0x00bb1fc0 (FADDR) 0x50: 0x00004acb (FRAP) BMWAG 0x00, BMRAG 0x00, BRWA 0x4a, BRRA 0xcb 0x54: 0x00000000 (FREG0: Flash Descriptor) 0x00000000-0x00000fff is read-only 0x58: 0x0fff0200 (FREG1: BIOS) 0x00200000-0x00ffffff is read-write 0x5C: 0x01ff0001 (FREG2: Management Engine) 0x00001000-0x001fffff is locked 0x60: 0x00007fff (FREG3: Gigabit Ethernet) Gigabit Ethernet region is unused. 0x64: 0x00007fff (FREG4: Platform Data) Platform Data region is unused. 0x68: 0x00007fff (FREG5: Device Expansion) Device Expansion region is unused. 0x6C: 0x00007fff (FREG6: Reserved 1) Reserved 1 region is unused. 0x70: 0x00007fff (FREG7: Reserved 2) Reserved 2 region is unused. 0x74: 0x00007fff (FREG8: Embedded Controller) Reading flash descriptors mapped by the chipset via FDOC/FDOD... done. Embedded Controller region is unused. 0x84: 0x00000000 (PR0, unused) 0x88: 0x00000000 (PR1, unused) 0x8C: 0x00000000 (PR2, unused) 0x90: 0x00000000 (PR3, unused) 0x94: 0x00000000 (PR4, unused) 0x98: 0x00000000 (PR5, unused) 0x9C: 0x00000000 (PR6, unused) 0xA0: 0xfe000080 (PR7) 0x00080000-0x01e00fff is read-only 0xA4: 0xb32d5006 (PR8) 0x01006000-0x0132dfff is read-only Reading flash descriptors mapped by the chipset via FDOC/FDOD... done. === Content Section === FLVALSIG 0x0ff0a55a FLMAP0 0x00040003 FLMAP1 0x42100208 FLMAP2 0x00310330

--- Details --- NR (Number of Regions): 1 FRBA (Flash Region Base Address): 0x040 NC (Number of Components): 1 FCBA (Flash Component Base Address): 0x030 ISL (ICH/PCH Strap Length): 66 FISBA/FPSBA (Flash ICH/PCH Strap Base Address): 0x100 NM (Number of Masters): 3 FMBA (Flash Master Base Address): 0x080 MSL/PSL (MCH/PROC Strap Length): 3 FMSBA (Flash MCH/PROC Strap Base Address): 0x300

=== Component Section === FLCOMP 0x125c00f5 FLILL 0xad604221

--- Details --- Component 1 density: 16 MB Component 2 is not used. Read Clock Frequency: reserved Read ID and Status Clock Freq.: reserved Write and Erase Clock Freq.: reserved Fast Read is supported. Fast Read Clock Frequency: reserved Invalid instruction 0: 0x21 Invalid instruction 1: 0x42 Invalid instruction 2: 0x60 Invalid instruction 3: 0xad

=== Region Section === FLREG0 0x00000000 FLREG1 0x0fff0200

--- Details --- Region 0 (Descr.) 0x00000000 - 0x00000fff Region 1 (BIOS ) 0x00200000 - 0x00ffffff

prettyprint_ich_descriptor_master: cs=16 === Master Section === FLMSTR1 0x00a00b00 FLMSTR2 0x00c00d00 FLMSTR3 0x00800800 FLMSTR4 0x00000000 FLMSTR5 0x10010100

--- Details --- Descr. BIOS ME GbE Plat EC BIOS r rw rw
ME r rw rw
GbE rw
Plat
EC r rw

OK. Target tp used cros_ec_probe_dev: probing for CROS_EC at /dev/cros_tp cros_ec_probe_lpc():518 ... Target tp used cros_ec_lpc only supports "ec" type devices. mec1308 only supports "ec" type devices mec1308_probe_spi_flash(): entered mec1308 only supports "ec" type devices ene_probe_spi_flash ene_lpc only supports "ec" type devices Error: Programmer initialization failed. Restoring PCI config space for 00:1f:5 reg 0xdc restore_power_management: Re-enabling power management.

[MrChromebox]

pushed a fix, LMK if it works since I can't test. Must be flashed from CrOS

[gibwise]

pushed a fix, LMK if it works since I can't test. Must be flashed from CrOS

I didn`t backup original BIOS so I cannot go back to Chrome OS. Is it possible the touchpad firmware to flash using SuzzyQ cable?

[MrChromebox]

you can restore the stock firmware using my script, it will provide a firmware image for EVE.

You can almost certainly flash the TP firmware via a Suzy-Q cable, but I haven't done it and don't have any instructions on how to do it. I suspect there's something on chromium.org somewhere