Yi Home 1080p - RFUS 9.0.19* - y21ga - Camera not start after first reboot

bulletyhasor commented 7 months ago

Hi all! I'm new over here. I bought some new Yi cameras 1080p (exact model described bellow). I installed yi-hack 0.3.1 and I think I found a bug anywhere that can be bothering more than one people.

My steps:

Firstly, I installed the camera/s withing the Yi app, just in case I pretend to use it. All OK
Later, I proceed with the installation of latest yi-hack release (0.3.1) and all went just fine. Insert the SD and camera works just perfect. Easy and quickly.
I play around a bit with the configuration and start experiencing some issues. I have 2 cameras, and without any logic, if I apply the changes rebooting the camera with the reboot button in the yi-cam web sometimes the camera do it ok and others it just reboot and do nothing. Instead, if I reboot unplugging the camera of the power its worst, allways do nothing. Actually, not nothing but the camera blink as a normal start and turn off the led (as I configured). So I start thinking I'm not in a reboot loop, it just not connects to wifi. I sniffed the network and no signals of the camera, no ping, no binding to wifi, etc..

I don't understand very well the hole process of wifi connection and SSID process and so, but after some research about it I notice that my camera loose some part of the SSID of the wifi. This behavior is because a "_" character in the SSID. I dont understand why sometimes the camera reboot ok with the web button but in any case, I suppose there is any problem with the configure_wifi.sh that writes the SSID to the mtdblock7. I don't really know how to fix it in code.

Easy solution: (For me as workaround) I created a new wifi SSID with the stored one and the camera connects. Bingo!

Some outputs about the issue:

My SSID: H-B-535_X. (I know it could be easy ;-) )

Cam1 data stored: Notice the SSID stored is missing the final "X".


root@Yi_1:~# cat /tmp/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
ap_scan=1
network={
ssid="H-B-535_"
scan_ssid=1
proto=WPA RSN
key_mgmt=WPA-PSK
pairwise=CCMP TKIP
group=CCMP TKIP
psk="blablabla"
}

root@Yi_1:~# cat /dev/mtdblock7 H-B-535_blablablaaRzXE5u6A9WcC7cxlslprTaHunmEzSvm'02544d534131364714242ee0d900e801 ... .. .

- Cam2 data stored: **Notice** the SSID stored in wpa_supplicant differs from mtdblock7
```shell
root@Yi_2:~# cat /tmp/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
ap_scan=1
network={
ssid="H-B-535_X"
scan_ssid=1
proto=WPA RSN
key_mgmt=WPA-PSK
pairwise=CCMP TKIP
group=CCMP TKIP
psk="blablabla"
}

root@Yi_2:~# cat /dev/mtdblock7
H-B-535_blablablaQNSqmcrh0HtJSpwxYS2EwtwuZtHVZ6C'035344534c3332478028e984cc00eb5f
...
..
.

More info: When its happends, after reboot, I cant reset the camera with the button at the back and reconnect the camera with the yi-app and all works again until I reboot and it happends again.

Cameras info: Model: Yi camera Home 1080p RFUS: FW: 9.0.19.12_202102241808 Yi hack version: 0.3.1

roleoroleo commented 7 months ago

Please, could you check if the behavior is the same described here? https://github.com/roleoroleo/yi-hack-Allwinner-v2/issues/814

Could you dump the mtdblock with "hexdump -C" instead of cat?

bulletyhasor commented 7 months ago

Hi, @roleoroleo

sure this look fairly the same case I suffered. The only difference I see is that I don't event try to install the Yi-hack without linking the Yi app (using the wifi settings in Yi-hack only). Can it be hacked and later on connected with the reset button to the Yi app?. I've two more new cameras to add, I can try it, I didn't have time to play with it yet.

Today both cameras have the same output even in the wpa_supplicant.conf, I think I made some changes via the camera web site and restart, but I don't remember very well. So I just put one camera output.

Here the hexdump output :

shell
root@Yi_1:~# cat /tmp/wpa_supplicant.conf 
ctrl_interface=/var/run/wpa_supplicant
ap_scan=1
network={
ssid="H-B-535_"
scan_ssid=1
proto=WPA RSN
key_mgmt=WPA-PSK
pairwise=CCMP TKIP
group=CCMP TKIP
psk="blablabla"
}

root@Yi_1:~# hexdump -C /dev/mtdblock7 
00000000  01 00 00 00 01 00 00 00  00 00 00 00 00 00 00 00  |................|
00000010  00 00 00 00 01 00 00 00  00 00 00 00 48 2d 42 2d  |............H-B-|
00000020  35 33 35 5f 00 00 00 00  00 00 00 00 00 00 00 00  |535_............|
00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000050  00 00 00 00 00 00 00 00  00 00 00 00 XX XX XX XX |............blab|
00000060  XX XX XX XX XX XX XX XX  00 00 00 00 00 00 00 00  |labla........|
00000070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000090  00 00 00 00 00 00 00 00  00 00 00 00 61 52 7a 58  |............aRzX|
000000a0  45 35 75 36 41 39 57 63  43 37 63 78 6c 73 6c 70  |E5u6A9WcC7cxlslp|
000000b0  72 54 61 48 75 6e 6d 45  7a 53 76 6d 00 00 00 00  |rTaHunmEzSvm....|
000000c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000d0  00 00 00 00 00 00 00 00  00 00 00 00 12 27 00 00  |.............'..|
000000e0  00 00 00 00 30 32 35 34  34 64 35 33 34 31 33 31  |....02544d534131|
000000f0  33 36 34 37 31 34 32 34  32 65 65 30 64 39 30 30  |364714242ee0d900|
00000100  65 38 30 31 0a 00 00 00  00 00 00 00 00 00 00 00  |e801............|
00000110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000120  00 00 00 00 00 00 00 00  00 00 00 00 20 1c 00 00  |............ ...|
00000130  0a 00 00 00 00 00 00 00  c8 0f 00 00 7d 02 00 00  |............}...|
00000140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  0a 00 00 00 01 00 00 00  00 00 00 00 80 51 01 00  |.............Q..|
000001b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001d0  02 00 00 00 02 00 00 00  01 00 00 00 00 00 00 00  |................|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000210  00 00 00 00 00 00 00 00  00 00 00 00 55 51 50 54  |............UQPT|
00000220  50 55 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |PU..............|
00000230  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000250  00 00 00 00 00 00 00 00  00 00 00 00 4d 4d 46 42  |............MMFB|
00000260  4a 50 4c 44 49 45 45 4b  4b 4b 48 4b 4f 4d 46 41  |JPLDIEEKKKHKOMFA|
00000270  50 4b 45 46 47 46 43 48  46 42 48 4b 48 4b 45 4d  |PKEFGFCHFBHKHKEM|
00000280  4c 42 4a 4e 49 4a 42 4a  43 45 42 41 50 43 49 41  |LBJNIJBJCEBAPCIA|
00000290  42 4e 4e 44 50 46 43 50  42 50 4b 4b 4f 4c 4b 44  |BNNDPFCPBPKKOLKD|
000002a0  44 45 50 49 4d 50 44 46  41 46 44 47 42 49 00 00  |DEPIMPDFAFDGBI..|
000002b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000002d0  00 00 00 00 00 00 00 00  00 00 00 00 f3 5c 16 66  |.............\.f|
000002e0  30 30 45 55 30 30 30 30  30 30 30 30 30 30 30 30  |00EU000000000000|
000002f0  30 30 30 30 00 00 00 00  00 00 00 00 00 00 00 00  |0000............|
00000300  64 00 00 00 01 00 00 00  64 00 00 00 01 00 00 00  |d.......d.......|
00000310  02 00 00 00 00 01 00 00  03 00 00 00 01 00 00 00  |................|
00000320  00 00 00 00 01 00 00 00  50 00 00 00 00 00 00 00  |........P.......|
00000330  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000640  00 00 00 00 54 4e 50 55  53 41 50 2d 37 33 30 32  |....TNPUSAP-7302|
00000650  33 36 2d 54 4a 45 5a 42  00 00 00 00 00 00 00 00  |36-TJEZB........|
00000660  00 00 00 00 52 46 55 53  59 34 34 43 32 33 57 51  |....RFUSY44C23WQ|
00000670  53 34 32 33 30 38 32 39  00 00 00 00 00 00 00 00  |S4230829........|
00000680  00 00 00 00 52 68 77 31  6f 33 61 42 64 77 4f 50  |....Rhw1o3aBdwOP|
00000690  54 69 32 49 00 00 00 00  00 00 00 00 00 00 00 00  |Ti2I............|
000006a0  00 00 00 00 30 30 30 30  30 30 30 30 00 00 00 00  |....00000000....|
000006b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000006c0  00 00 00 00 46 46 46 46  46 46 46 46 46 46 46 46  |....FFFFFFFFFFFF|
000006d0  46 46 46 46 00 00 00 00  00 00 00 00 00 00 00 00  |FFFF............|
000006e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00010000

roleoroleo commented 7 months ago

I tested the shell script inside my cam with your ssid name. It works properly. So please, try to run the script manually.

Create a text file /tmp/configure_wifi.cfg with your data:

# Don't use backslash char \
# Don't use double quote " around ssid and psk
# Space chars are allowed
wifi_ssid=H-B-535_X
wifi_psk=blablabla

And run the script /tmp/sd/yi-hack/script/configure_wifi.sh

github-actions[bot] commented 4 months ago

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

roleoroleo / yi-hack-Allwinner-v2

Yi Home 1080p - RFUS 9.0.19* - y21ga - Camera not start after first reboot #855