diff options
| author | Petr Štetiar <ynezz@true.cz> | 2021-04-09 14:52:05 +0200 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2021-04-13 10:29:25 +0200 |
| commit | e6d66375cbbb54e0e82a67030e385a5486273766 (patch) | |
| tree | 5032cffb1cbb9fac1fb94110dbfb8fffc8fabd44 /tools/firmware-utils | |
| parent | 1f831927ee4c71057f4997f615d0f45f074c592c (diff) | |
| download | upstream-e6d66375cbbb54e0e82a67030e385a5486273766.tar.gz upstream-e6d66375cbbb54e0e82a67030e385a5486273766.tar.bz2 upstream-e6d66375cbbb54e0e82a67030e385a5486273766.zip | |
tplink-safeloader: fix C7v5 factory flashing from vendor fw > v1.1.x
Currently it's not possible to flash factory images on devices shipped
with vendor firmware versions 1.1.0 Build 20201120 rel. 50406 (published
2020-12-22):
(curFw_ver, newFw_ver) == (1.1, 1.0) [NM_Error](nm_checkSoftVer) 00848: Firmwave not supports, check failed.
[NM_Error](nm_checkUpdateContent) 01084: software version dismatched
[NM_Error](nm_buildUpgradeStruct) 01188: checkUpdateContent failed.
They've even following note in release notes:
Note: You will be unable to downgrade to the previous firmware version
after updating this firmware.
This version check in vendor firmware is implemented in
/usr/bin/nvrammanager binary likely as following C code[1]:
sscanf(buf, "%d.%d.%*s",&upd_fw_major, &upd_fw_minor);
...
if (((int)upd_fw_major < (int)cur_fw_major) ||
((ret = 1, cur_fw_major == upd_fw_major && (upd_fw_minor < (int)cur_fw_minor)))) {
ret = 0;
printf("[NM_Error](%s) %05d: Firmwave not supports, check failed.\r\n\r\n","nm_checkSoftVer" ,0x350);
}
...
return ret;
So in order to fix this and make it future proof it should be enough to
ship our factory firmware images with major version 7 (lucky number).
Tested on latest firmware version 1.1.2 Build 20210125 rel.37999:
Firmwave supports, check OK.
(curFw_ver, newFw_ver) == (1.1, 7.0) check firmware ok!
Flashing back to vendor firmware
c7v5_us-up-ver1-1-2-P1[20210125-rel37999]_2021-01-25_10.33.55.bin works
as well:
U-Boot 1.1.4-gbec22107-dirty (Nov 18 2020 - 18:19:12)
...
Firmware downloaded... filesize = 0xeeae77 fileaddr = 0x80060000.
Firmware Recovery file length : 15642231
Firmware process id 2.
handle_fw_cloud 146
Image verify OK!
Firmware file Verify ok!
product-info:product_name:Archer C7
product_ver:5.0.0
special_id:55530000
[Error]sysmgr_cfg_checkSupportList(): 1023 @ specialId 45550000 NOT Match.
Firmware supports, check OK.
Firmware Recovery check ok!
1. https://gist.github.com/ynezz/2e0583647d863386a66c3d231541b6d1
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Diffstat (limited to 'tools/firmware-utils')
| -rw-r--r-- | tools/firmware-utils/src/tplink-safeloader.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/firmware-utils/src/tplink-safeloader.c b/tools/firmware-utils/src/tplink-safeloader.c index da73e1bf30..ac71b3305e 100644 --- a/tools/firmware-utils/src/tplink-safeloader.c +++ b/tools/firmware-utils/src/tplink-safeloader.c @@ -1262,7 +1262,7 @@ static struct device_info boards[] = { "{product_name:Archer C7,product_ver:5.0.0,special_id:4B520000}\n", .part_trail = 0x00, - .soft_ver = "soft_ver:1.0.0\n", + .soft_ver = "soft_ver:7.0.0\n", /* We're using a dynamic kernel/rootfs split here */ .partitions = { |