Navigating (enabling developer mode) with broken screen (oneplus 3t)

doniks

@Toadtoad thanks for the clear post!

The first step of the guide you linked involves the following the command: mount /data/rootfs.img /a, which outputs that rootfs.img does not exist.

oh. uhh. I am really surprised. You are positive that UT is installed right? Maybe things are not working as I thought they are :man_shrugging: Can you show ls -l /system?

There is a thread about the oneplus 3t in the porting - devices section. People there should know how to chroot in

Lakotaubp

https://forums.ubports.com/topic/3253/oneplus-3-3t/538 Just to help speed things along if needed.

Toadtoad

@doniks
ls -l /system

total 88
drwxr-xr-x   2 root root 4096 2020-06-26 06:53 android
drwxr-xr-x   2 root root 4096 2017-01-10 21:46 bin
drwxr-xr-x   2 root root 4096 2016-04-12 20:14 boot
lrwxrwxrwx   1 root root   14 2020-06-26 06:53 cache -> /android/cache
lrwxrwxrwx   1 root root   13 2020-06-26 06:53 data -> /android/data
drwxr-xr-x   3 root root 4096 2020-06-26 05:28 debian
drwxr-xr-x   4 root root 4096 2020-06-26 05:24 dev
drwxr-xr-x 110 root root 4096 1973-06-18 14:58 etc
lrwxrwxrwx   1 root root   16 2020-06-26 06:53 factory -> /android/factory
lrwxrwxrwx   1 root root   17 2020-06-26 06:53 firmware -> /android/firmware
drwxr-xr-x   3 root root 4096 2020-06-26 05:32 home
drwxr-xr-x  19 root root 4096 2020-06-26 05:28 lib
drwx------   2 root root 4096 1970-01-01 00:00 lost+found
drwxr-xr-x   2 root root 4096 2020-06-26 05:23 media
drwxr-xr-x   2 root root 4096 2020-06-26 05:23 mnt
lrwxrwxrwx   1 root root   12 2020-06-26 06:53 odm -> /android/odm
drwxr-xr-x   3 root root 4096 2020-06-26 05:31 opt
lrwxrwxrwx   1 root root   16 2020-06-26 06:53 persist -> /android/persist
drwxr-xr-x   2 root root 4096 2016-04-12 20:14 proc
drwx------   2 root root 4096 2020-06-26 05:32 root
drwxr-xr-x   8 root root 4096 2020-06-26 05:31 run
drwxr-xr-x   2 root root 4096 2020-06-26 05:32 sbin
drwxr-xr-x   2 root root 4096 2020-06-26 05:23 srv
drwxr-xr-x   2 root root 4096 2016-02-05 09:48 sys
lrwxrwxrwx   1 root root   15 2020-06-26 06:53 system -> /android/system
drwxrwxrwt   2 root root 4096 2020-06-26 05:32 tmp
drwxr-xr-x   2 root root 4096 2020-06-26 06:53 userdata
drwxr-xr-x  10 root root 4096 2020-06-26 05:23 usr
drwxr-xr-x  11 109  113  4096 2020-06-25 12:57 var
lrwxrwxrwx   1 root root   22 2020-06-26 06:53 vendor -> /android/system/vendor

Should I reinstall UBPorts?

doniks

@Toadtoad said in Navigating (enabling developer mode) with broken screen (oneplus 3t):

@doniks
ls -l /system

total 88
drwxr-xr-x   2 root root 4096 2020-06-26 06:53 android
drwxr-xr-x   2 root root 4096 2017-01-10 21:46 bin
drwxr-xr-x   2 root root 4096 2016-04-12 20:14 boot
lrwxrwxrwx   1 root root   14 2020-06-26 06:53 cache -> /android/cache
lrwxrwxrwx   1 root root   13 2020-06-26 06:53 data -> /android/data
drwxr-xr-x   3 root root 4096 2020-06-26 05:28 debian
drwxr-xr-x   4 root root 4096 2020-06-26 05:24 dev
drwxr-xr-x 110 root root 4096 1973-06-18 14:58 etc
lrwxrwxrwx   1 root root   16 2020-06-26 06:53 factory -> /android/factory
lrwxrwxrwx   1 root root   17 2020-06-26 06:53 firmware -> /android/firmware
drwxr-xr-x   3 root root 4096 2020-06-26 05:32 home
drwxr-xr-x  19 root root 4096 2020-06-26 05:28 lib
drwx------   2 root root 4096 1970-01-01 00:00 lost+found
drwxr-xr-x   2 root root 4096 2020-06-26 05:23 media
drwxr-xr-x   2 root root 4096 2020-06-26 05:23 mnt
lrwxrwxrwx   1 root root   12 2020-06-26 06:53 odm -> /android/odm
drwxr-xr-x   3 root root 4096 2020-06-26 05:31 opt
lrwxrwxrwx   1 root root   16 2020-06-26 06:53 persist -> /android/persist
drwxr-xr-x   2 root root 4096 2016-04-12 20:14 proc
drwx------   2 root root 4096 2020-06-26 05:32 root
drwxr-xr-x   8 root root 4096 2020-06-26 05:31 run
drwxr-xr-x   2 root root 4096 2020-06-26 05:32 sbin
drwxr-xr-x   2 root root 4096 2020-06-26 05:23 srv
drwxr-xr-x   2 root root 4096 2016-02-05 09:48 sys
lrwxrwxrwx   1 root root   15 2020-06-26 06:53 system -> /android/system
drwxrwxrwt   2 root root 4096 2020-06-26 05:32 tmp
drwxr-xr-x   2 root root 4096 2020-06-26 06:53 userdata
drwxr-xr-x  10 root root 4096 2020-06-26 05:23 usr
drwxr-xr-x  11 109  113  4096 2020-06-25 12:57 var
lrwxrwxrwx   1 root root   22 2020-06-26 06:53 vendor -> /android/system/vendor

Now, this looks like UT! I am so surprised.

Should I reinstall UBPorts?

No, no need. Seems you were correct earlier! Just double check that there is a home/phablet folder in there then it is 100% that this is UT. Then find the passwd executable. It has to be in any of bin sbin usr/bin usr/sbin I'm sure. Then chroot /system and change phablet's password using that passwd that you just found.

PS: Could you do me a favor? It's not really relevant for your passwd/ssh question, but it would help me understand how this halium port is put together. Can you paste ls -l /system/var/lib/lxc/android (or without the leading /system if you are inside the chroot)

joe

Also try "phablet" as the default password. That's what it was on my OP3.

Toadtoad

@doniks
Ah, I didn't add sbin, /usr/bin, and /usr/sbin to PATH. passwd was in /usr/bin. I changed the password, so I think I'm able to get in. But, it seems like adb isn't even supported on the OP3T, so it seems like a moot point. @joe since you were able to help me navigate to developer mode, do you think you can tell me how to open the terminal with a keyboard, so I could try to setup SSH?

joe

@Toadtoad
Once you can be sure that you are past the lock screen:
UPDATE on this for me for some reason:

Hold superkey, and press a number to open any app . e.g. settings, which will prompt for password if locked.
Enter password ** For me I now have to press TAB to make the cursor go to the password field.

You can reach the terminal or any app by pressing:

Superkey (this will open the dash)
Type in "terminal" , which should search for the app. Then press Enter.
You should be in terminal now, and it asks for your password again. Type that in and press Enter.
Now will be in the command line

Toadtoad

@joe Okay, I think nearly everything is setup for SSH. The one thing I can confirm isn't working yet is wifi. My network runs on wpa-psk, and I need some way to bring the credentials to the phone. Is this possible through adb shell?

EDIT: Also, do I need to TAB when opening the terminal before entering my password? Thanks.

joe

@Toadtoad
Refer to my first post for the wifi part.
Under

[wifi-security]
auth-alg=open
group=
key-mgmt=wpa-psk
pairwise=
proto=
psk=

psk = [your wifi password]

I think you can copy the settings from another ubuntu machine under
/etc/NetworkManager/system-connections

You don't need to TAB for the password in terminal. Also it might vary for the one on the lock screen

Toadtoad

@joe I tried copying the file from my Manjaro machine, replacing the permissions and adding the password, but it didn't seem to work, as I couldn't detect my phone on nmap from another computer on the LAN. I even tried to get into the terminal to use nmcli to connect (https://docs.ubuntu.com/core/en/stacks/network/network-manager/docs/configure-wifi-connections) but it didn't seem to work, either. How can i get my internet connected, and is there any way to verify I'm actually in the terminal? Sorry for how complicated this is getting, and thanks for the help.

joe

@Toadtoad
You are setting up via ADB through TWRP?
Permissions should be:
-rw------- 1 root root
And the profile in /data/system-data/etc/NetworkManager/system-connections is the exact name of the wifi SSID.

Not sure how you would know if you are in the terminal or not. One way would be to assume you are, then create a file e.g. "touch testfile" . Then go back to TWRP-adb and see if that file exists.

Toadtoad

@joe The permissions were -rwxrwxrwx 1 root root, but that should work as well (albeit it could be more secure). The profile has the same name as the SSID.

After testing, I don't think I was in the terminal. Should I try reinstalling UBPorts from scratch, and is there an initial setup page that I haven't bypassed that I may be hitting? I'm trying to figure out why I didn't access the terminal. I believe I followed the instructions exactly.

Capsia

@Toadtoad Hi,
You can test if you are in the terminal by connecting your headphones,
then type:

pactl load-module module-loopback

Now you should hear your voice from the microphone to the headphones.
If it works, make sure to unload the module before unplugging the headphones:

pactl unload-module module-loopback

If everything worked, you've successfully opened the terminal.
(If you run the commands without plugged headphones, your phone will generate strange, loud sounds)

Toadtoad

@Capsia Okay, based off of that, it seems like I am not in the terminal, unfortunately. Is there anything else I could try?