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FS#1743 - Archer C7 v1.1 is soft bricked with the 18.06 release #7079
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orkun1675: Same here. On another note: i also have an Archer C7 v1.1 with CC (15.05.1) installed. But I can't get the wireless working. There is no wireless option under the network tab in Luci and the "wireless detect/config" command via ssh does nothing. Can you give me any pointers on this if you were able to get it working? |
jacobq: I'm not sure if this is the same problem, but installing the latest release (18.06.1) or snapshot (2018/08/23) appears to brick TP-Link Archer C7 v1.0 as well. See https://forum.openwrt.org/t/archer-c7-v1-0-crashes-on-boot/19784 |
a-mcintosh: I confirm the boot loop problem on 18.06.1. Safe mode works on 18.06.1. I pulled the 5G radio card and the 18.06.1 boots. I speculate that selected radio support could be removed from the build, and it would boot and work correctly with reduced capability. Lets move this to status "confirmed." |
chunkeey: Hey, I also do own a C7 V1.0. But I was able to score a QCA9880 v2 for it, As for the problem. Both Archer C7 V1(.0 and .1) and C7 V2 use the same target/linux/ar71xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata tries to extract the cal-data from the ART partition in the same way. The problem is fixed in the upcoming ath79 Archer C7 V1.(0/1) though. |
a-mcintosh: I forked the 18.06.1 branch, dropped the ath10k support from the archer-c7-v1 configuration, and produced an image that disables the 5 GHz radio but otherwise seems to run ok. I submitted a pull request. My branch is available at https://github.com/a-mcintosh/openwrt/tree/archer-c7-v1 |
psyborg:
this is the cause of pci driver crash? is there any revision of ath10k driver and firmware that works, even if it includes patching - based on what i read there is? |
chunkeey:
this is the cause of pci driver crash? is there any revision of ath10k driver and firmware that works, even if it includes patching - based on what i read there is?
Sort of. The offending upstream [[https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1a7fecb766c83dace747f42b25bbb544b00a0163|patch]] is:
commit 1a7fecb766c83dace747f42b25bbb544b00a0163
Author: Michal Kazior
Date: Sat Jan 24 12:14:48 2015 +0200
It was already bisected and reported earlier (much much earlier). |
psyborg: so, this patch should be reverted? what about firmware version, there is no hw1.0 fw available on any of the git sources. extracted firmware binary from tp-link firmware should work? or should i try use hw2.0 binary? |
chunkeey: Look, TP-Link and Qualcomms are Companies. You should talk to their customer services about it too. But be advised: Last time I checked (and got a good answer!): the "recommended" solution was to fork over money for one of the QCA9880 v2 minipcie cards or stick with their original firmware: "Since it's working just fine(tm)". Sure you can do that to save yourself the required hours/days/months/years which would be necessary to get the v1 working. Or you can just ditch the v1 card and go for something else. I would suggest mediatek just to say "Thank you". But what do I know, right?! |
ynezz: I've pushed fix ynezz@c531735 from #1349 to master yesterday, there are new snapshot images available today: In order to push the fix to openwrt-18.06 stable branch, I would like to get confirmation, that the reported problem is fixed with the snapshot images mentioned above. It would be nice to get |
psyborg: just came up with better solution: https://www.mail-archive.com/openwrt-devel@lists.openwrt.org/msg45816.html |
zless:
Supply the following if possible:
Device problem occurs on: TP-Link Archer C7 v1.1
Software versions of OpenWrt/LEDE release, packages, etc.
I tested this on the release version 18.06 and yesterday's snapshot. (archer-c7-v1-squashfs-factory.bin)
Steps to reproduce
Install OpenWRT 18.06 from the SSH command line (an older version is already running OK). The device will enter into a reboot loop.
I managed to enter safe mode and downgrade to an archived older version from December 2017 ([[https://archive.openwrt.org/snapshots/trunk/ar71xx/generic/openwrt-ar71xx-generic-archer-c7-v1-squashfs-factory.bin]])
Back in October 2017 I also tried the then stable release from LEDE and it had the same issue (reboot loop).
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