No Root SSH ACCESS on WP7702 FX30

IoT Modules WP Series
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21

Hi @jyijyi ,

My two modules are now unlocked to access SSH !!! thanks to Sierra FAE “Chau” and you @jyijyi .
He gave me instructions so as to unlock with a key and After performing these steps, the SSH authentication credentials, data, and applications in the FX30 device are removed.

root@user:/home/user# adb shell
/ # flash_eraseall /dev/mtd16
flash_eraseall has been replaced by `flash_erase <mtddev> 0 0`; please use it
Erasing 134144 Kibyte @ 0 -- 0 % complete libmtd: error!: MEMERASE64 ioctl failed for eraseblock 0 (mtd16)
  error 22 (Invalid argument)
flash_erase: error!: /dev/mtd16: MTD Erase entire chip failureTrying one by one each sector.
    error 22 (Invalid argument)
Erasing 256 Kibyte @ 82c0000 -- 100 % complete
/ # reboot

Thank you for your first help

22

Regarding the 3rd method to write an unsandboxed legato application to format the userapp partition, I have just tried to write this unsandboxed legato application “hello1.7z”:
hello1.7z (8.6 KB)

Here is my procedure:

  1. compile and download the application to WP76xx with FW R17
  2. update /tmp/hello1.wp76xx.update
  3. “app status” should show hello1
  4. app start hello1
  5. after 10 seconds, the erase task will be done and the module will reboot automatically
  6. now the ssh should be OK to establish as the userapp partition has been formatted.

If the above procedure is working on your module, then you can upload the application to AVMS portal and issue AT+WDSS=1,1 to your module so that the application can be updated through AVMS.

23

Hi,
I have again no access on my WP7702. The hello1.7z file is for WP76.
Do we have a solution for WP77 or you have to do same procedure recovery on it?
Thanks,

24

You can compile for wp77 module, right?

25

No I can’t sorry, I don’t how to do that

26

Then have you tried to download it to your wp7702?

Btw, here shows how to compile the legato application in vscode

Lastly, have you contacted sierra FAE to unlock the module?

27

Ok will try it.
I have not yet contacted FAE for this module. I should do it?

28

you can do so as it is the easiest way to recover the module