From e6d66375cbbb54e0e82a67030e385a5486273766 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Petr=20=C5=A0tetiar?= Date: Fri, 9 Apr 2021 14:52:05 +0200 Subject: [PATCH] tplink-safeloader: fix C7v5 factory flashing from vendor fw > v1.1.x MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Å tetiar --- tools/firmware-utils/src/tplink-safeloader.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/firmware-utils/src/tplink-safeloader.c b/tools/firmware-utils/src/tplink-safeloader.c index da73e1bf307..ac71b3305ee 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 = { -- 2.30.2