New Build: 08-31-2019-r40863, DO NOT use this build!

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brandfalldummy
DD-WRT Novice


Joined: 01 Jul 2018
Posts: 9

PostPosted: Sat Aug 31, 2019 12:58    Post subject: New Build: 08-31-2019-r40863, DO NOT use this build! Reply with quote
New Build: 08-31-2019-r40863 will NOT work on partition 1 nor on partition 2.

The last working versions are:

Partition 1: 08-29-2019-r40854
Partition 2: 06-27-2019-r40134

I wish you success
Sponsor
SurprisedItWorks
DD-WRT User


Joined: 04 Aug 2018
Posts: 406
Location: Appalachian mountains, USA

PostPosted: Sat Aug 31, 2019 13:09    Post subject: Re: New Build: 08-31-2019-r40863, DO NOT use this build! Reply with quote
brandfalldummy wrote:
New Build: 08-31-2019-r40863 will NOT work on partition 1 nor on partition 2.

Please identify your specific router model.

_________________
Six of the Linksys WRT1900ACSv2 on r38159 (solid), r39144 (very solid), r40009 (solid), and r40784 (trying out). On various:
VLANs, client-mode travel router, two DNSCrypt servers (incl Quad9), multiple VAPs, USB/NAS, QoS, OpenVPN client/PBR (random NordVPN server).
dyilmaz
DD-WRT Novice


Joined: 26 Aug 2016
Posts: 42

PostPosted: Sat Aug 31, 2019 14:08    Post subject: r40863 continuously restarts my linksys wrt1900acsv2 Reply with quote
08-31-2019 r40863 continuously restarts my Linksys wrt1900acsv2 router.

Can someone tell us how to we recover our routers?
scar1943
DD-WRT User


Joined: 10 Nov 2018
Posts: 183
Location: South Carolina

PostPosted: Sat Aug 31, 2019 15:30    Post subject: DD-WRT v3.0-r40863 std (08/31/19) Reply with quote
WRT3200ACM V1 r40863 Firefox 68.0.2 (64-bit) webflash

OpenVPN CLIENT works fine (nordvpn server)
5GHz wpa2 CCMP-128 (AES)working fine 20MHz Mixed
2.4GHz wpa2 CCMP-128 (AES)working fine 20MHz Mixed
NAS via USB Samba also working fine

*** I'm carefully making these statements. I've been up for about 30 mins, no problem noticed on my 3200acm. As stated above, those 4 functions are working fine on my router so far.
haxelmans
DD-WRT Novice


Joined: 08 Apr 2017
Posts: 13

PostPosted: Sat Aug 31, 2019 15:33    Post subject: Reply with quote
Yep 1900acsv2 crash, bootloop.

cannot switch partition with reset button
SurprisedItWorks
DD-WRT User


Joined: 04 Aug 2018
Posts: 406
Location: Appalachian mountains, USA

PostPosted: Sat Aug 31, 2019 16:01    Post subject: Reply with quote
haxelmans wrote:
Yep 1900acsv2 crash, bootloop.

cannot switch partition with reset button

The reset button does not switch partitions. It just resets the nvram config space back to the default dd-wrt condition. You need to try the three power-switch cycles to switch partitions. Reports of how to do this vary, but here's what has worked for me. Get this procedure clearly in your mind before you start, because timing matters.

Let "Cycle Power" in the "code" (your fingers are the "processor") below mean this: turn power off, wait 2 seconds, turn power on, and look for power light to go on. The actual procedure to try then looks like this:
Code:
Cycle Power.
Repeat three times:
    when the power light starts to blink (happens very soon), immediately Cycle Power.

The key is to count power-on steps. Stop after the fourth power on.

Good luck. Looks like a scary situation.

_________________
Six of the Linksys WRT1900ACSv2 on r38159 (solid), r39144 (very solid), r40009 (solid), and r40784 (trying out). On various:
VLANs, client-mode travel router, two DNSCrypt servers (incl Quad9), multiple VAPs, USB/NAS, QoS, OpenVPN client/PBR (random NordVPN server).
dyilmaz
DD-WRT Novice


Joined: 26 Aug 2016
Posts: 42

PostPosted: Sat Aug 31, 2019 16:18    Post subject: Reply with quote
It doesn't work! I tried it several times.
Any other suggestion?


SurprisedItWorks wrote:
haxelmans wrote:
Yep 1900acsv2 crash, bootloop.

cannot switch partition with reset button

The reset button does not switch partitions. It just resets the nvram config space back to the default dd-wrt condition. You need to try the three power-switch cycles to switch partitions. Reports of how to do this vary, but here's what has worked for me. Get this procedure clearly in your mind before you start, because timing matters.

Let "Cycle Power" in the "code" (your fingers are the "processor") below mean this: turn power off, wait 2 seconds, turn power on, and look for power light to go on. The actual procedure to try then looks like this:
Code:
Cycle Power.
Repeat three times:
    when the power light starts to blink (happens very soon), immediately Cycle Power.

The key is to count power-on steps. Stop after the fourth power on.

Good luck. Looks like a scary situation.
haxelmans
DD-WRT Novice


Joined: 08 Apr 2017
Posts: 13

PostPosted: Sat Aug 31, 2019 16:20    Post subject: Reply with quote
power light never comes on.

only eSata and connected ethernet cable comes on for a second. After that reboot.
dyilmaz
DD-WRT Novice


Joined: 26 Aug 2016
Posts: 42

PostPosted: Sat Aug 31, 2019 16:38    Post subject: Reply with quote
I congratulate the idiot who build and put this release here!
SurprisedItWorks
DD-WRT User


Joined: 04 Aug 2018
Posts: 406
Location: Appalachian mountains, USA

PostPosted: Sat Aug 31, 2019 16:38    Post subject: Reply with quote
haxelmans wrote:
power light never comes on.

only eSata and connected ethernet cable comes on for a second. After that reboot.

Wow. You are definitely beyond my limited expertise. I gather that for some dd-wrt routers there's some sort of serial-cable routine for extreme emergencies like this. I have no idea whether such a thing exists for the WRT... routers. Anyone? Other ideas?

Someone who knows how to needs to ask BS to remove this build (for the WRT routers) from the download sites. It's too dangerous to have posted.

_________________
Six of the Linksys WRT1900ACSv2 on r38159 (solid), r39144 (very solid), r40009 (solid), and r40784 (trying out). On various:
VLANs, client-mode travel router, two DNSCrypt servers (incl Quad9), multiple VAPs, USB/NAS, QoS, OpenVPN client/PBR (random NordVPN server).
haxelmans
DD-WRT Novice


Joined: 08 Apr 2017
Posts: 13

PostPosted: Sat Aug 31, 2019 16:43    Post subject: Reply with quote
Going to try this on monday

https://youtu.be/PZYXKAkuJ5w

ordered a USB to TTL Serial Cable

fingers crossed monday
SurprisedItWorks
DD-WRT User


Joined: 04 Aug 2018
Posts: 406
Location: Appalachian mountains, USA

PostPosted: Sat Aug 31, 2019 16:56    Post subject: Reply with quote
I guess all here can see why aiming quickly for the very latest release is not really a good plan. I always wait for the new-build thread to settle down and show me that others with my WRT model are having success. That pretty much means I have never used the latest build. Sometimes old is good. (Even so, I've had my share of panic-inducing screwups.)

I really, really don't mean to be cruel to those of you suffering the miserable stress of this. Just rattling the cages of anyone else watching, esp newbies who haven't sorted out their procedures yet, re an important thing to be aware of. I can remember when I started that I really resented the suggestion that I give up my time to watch new-build threads and the marvell forum in general. I wanted action! But dd-wrt pretty much requires you to become a router hobbyist, as to skim a couple of online posts and go for it is to risk disaster.

And this is clearly the worst release disaster I've seen for our WRT routers, which have always been thought to be unbrickable. I guess the results of the TTL experiment (do any electronics still use TTL interfaces?) will settle the question.

_________________
Six of the Linksys WRT1900ACSv2 on r38159 (solid), r39144 (very solid), r40009 (solid), and r40784 (trying out). On various:
VLANs, client-mode travel router, two DNSCrypt servers (incl Quad9), multiple VAPs, USB/NAS, QoS, OpenVPN client/PBR (random NordVPN server).
DaveI
DD-WRT User


Joined: 06 Jul 2009
Posts: 267

PostPosted: Sat Aug 31, 2019 17:23    Post subject: Reply with quote
WOW!! I was luckily late to the party...

Here is the Youtube video I always refer to...

https://www.youtube.com/watch?v=mN7u79EupGQ

I have had to recover my WRT1900ACSv2 router twice. What I found was I had to alter the video instructions slightly...Here are my specific instructions I have used to reflash both images back to Linksys stock firmware. I have found the ADAFRUIT cable works best. If you order one
of the Prolific Pirated chipset cables MS has blocked those from working in Windows 10 but there is a hack you can search for to get those working...Best to buy the ADAFRUIT to avoid further complications.
-------------------------------------------
WRT1900ACS V2 ROUTER RESCUE

RENAME STOCK LINKSYS FIRMWARE to linksys.img
(This is for ease of installation).

Set NIC to 192.168.1.2

PUTTY SET TO COM(Port Number in Device Manager), Speed 115200

COMMANDS in PUTTY
setenv firmwareName linksys.img
setenv ipaddr 192.168.1.1
setenv netmask 255.255.255.0
setenv serverip 192.168.1.2
run update_both_images

TFTPD32

Select Folder with image file (Ex. C:\FTP)
Make sure to select NIC intfc. before flashing both images.

**DISABLE ALL FIREWALLS BEFORE UPDATING IMAGES**

You may have to hold the connections securely on the router (Make sure you have them connected per this video)...

As I have better things to do today I'll trust the posters that this firmware is a DUD and sit this out. I'll post in Bugtracker other's findings.

_________________
WRT1900ACSv2
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 1992
Location: Texas, USA

PostPosted: Sat Aug 31, 2019 19:22    Post subject: Reply with quote
dyilmaz wrote:
I congratulate the idiot who build and put this release here!


Well, as there is only one main developer and build compiler and release poster, feel free to go tell him. Need his email address? It's not me, because if it were, you wouldn't like my response, I guarantee it. Wink Cool
SurprisedItWorks
DD-WRT User


Joined: 04 Aug 2018
Posts: 406
Location: Appalachian mountains, USA

PostPosted: Sat Aug 31, 2019 19:49    Post subject: Reply with quote
BTW, I've been tracking the sizes of recent releases for the WRT1900ACSv2 using a bash function on my linux box:
Code:
sizeof () {
   curl -s -I ftp://ftp.dd-wrt.com/betas/2019/$1/linksys-wrt1900acsv2/ddwrt-linksys-wrt1900acsv2-webflash.bin
}

which is used, in bash, with a command like sizeof 08-31-2019-r40863 with these results, which skip a few releases early in the list:

39063552 bytes, release 40009
39325696 bytes, release 40134
39456768 bytes, release 40167
39718912 bytes, releases 40189, 40260, 40276, 40352
40505344 bytes, releases 40400, 40443, 40452, 40459, 40501, 40527, 40559, 40634, 40672, 40723, 40750, 40784, 40854
40636416 bytes, release 40863

Edit: Belated discovery -- these are all exactly divisible by 1024. So this release's size is 39684 1K blocks, while the previous 13 releases' sizes were 39556 1K blocks. The increase was 128 blocks or barely over 0.3 percent, but that was enough to do us in.

So perhaps we now know what happens when one attempts to flash a too-large release into partition one.

_________________
Six of the Linksys WRT1900ACSv2 on r38159 (solid), r39144 (very solid), r40009 (solid), and r40784 (trying out). On various:
VLANs, client-mode travel router, two DNSCrypt servers (incl Quad9), multiple VAPs, USB/NAS, QoS, OpenVPN client/PBR (random NordVPN server).
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