no S/N and forgotten wifi after unplug power

[MATN92]

i've got problem with my camera. I bought it from a seller who said that after updating a firmware camera 'bricked' [according him - only speaks Chinesse and cant add in Yi Home app or Chinesse version]. after install hack it works again, but it cant be visible S/N and also I noticed that after disconnection with power forgets wifi ssid and password [after power reset i need scan QR code from app]. Is there any possibility to add wpa_suplicant with this hack or update firmware for working YI cloud - i preferred wpa_suplicant :)

DID: BFUSY446G8QKMM200807
S/N: BY21GAEUW09027706
processor:QG2101A

[roleoroleo]

I will check it.

[roleoroleo]

Could you please make a copy of your /backup folder?

[MATN92]

here is backup before hack
https://rapidu.net/041072659515391/Archive.zip

[roleoroleo]

I checked your files and all is ok.
Send me a copy of your /tmp/mmap.info
Pay attention to the content, hide your personal data but don't change the binary structure.

[MATN92]

where i can find nmap.info?

[roleoroleo]

In /tmp

[MATN92]

i cant find folder tmp or i havent got it... can i acess via ssh?

[roleoroleo]

Go up.
cd /tmp

[MATN92]

I might be doing something wrong, but here what i got:
^P^@^@^@^P^@^@^@^@^@^@^@https://api.eu.xiaoyi.com^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^
^@^@^@^@^@^@^@.^G^@^@}^B^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
^@^@^@^A^@^@^@^@^@^@^@.Q^A^@^@^@^@^@^@^@^@^@^@^@^@^BP^@^@^@^P'^@^@^@^@^@^@02544d53413136475548a9d3d80149b1
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^A^@^@^@^@^@^@^@^B^@^@^@^@^A^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
~
~
~
~
~
~

[MATN92]

i checked wpa_supplicant.conf and seems good, but why forgoted every time when power reset?

[roleoroleo]

wpa_supplicant is a temporary file created when system boots up.
You can't edit it.
Please, send me mmap.info zipped as a binary file.

[MATN92]

LINK REMOVED
he it is...

[roleoroleo]

There is no serial number in your mmap.info
I don't know why...

[MATN92]

for now i use roleoroleo/yi-hack-Allwinner#289 and its working, but i think this camera is bricked on firmware update - i cant find newer firmware from producent for y21ga [this model]
maybe manual edit this file? - mmap.info

[roleoroleo]

rootfs, home and backup partitions are ok.
Did you try to reset the cam with the button?

[MATN92]

many time... every time after reset talked chinese and cant connected via Yi Home app Global or Chinesse [connected WiFi, but not YI cloud etc]... i think missing S/N is the first problem on this device...

[roleoroleo]

We could try to overwrite the partition where the cam stores sn.
I will create a special sd card.

[roleoroleo]

You could try to overwrite mtd7 with this file:
mtdblock7.zip

But only if you can unbrick the cam with a serial connection because it's a risky operation.

[uklatt]

I had the same problem. Look here: #383
I took mtdblock6 and mtdblock7 from an international camera and wrote it to the chinese camera.
Both models are y21ga!
Now the camera speaks english and works with yi-hack without problems ;-)

Uwe

[stale]

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