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

Lakotaubp

@Toadtoad ADB not working yet on OP3(T)

Toadtoad

I've tried all of the suggestions so far. I don't know if a password is on my default, and 0000 didn't work (also is there an initial setup I have to complete before being able to perform this action). I chrooted in TWRP, but passwd was not in the /system/bin directory. So, I'm making progress, but am not there yet.

doniks

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

I chrooted in TWRP, but passwd was not in the /system/bin directory.

Can you paste exact steps you took and output? passwd should be there. If you are looking at a folder called '/system/bin' then you are looking at the wrong place. I don't think such a folder exists INSIDE the UBports system image/partition (not sure which one the OP3t has.., so again, please post steps verbatim!). It should be in a "normal" Linux location, something like /bin /sbin /usr/bin /usr/sbin don't have a device in front of me.

And while I'm sure you should be able to get passwd working, I'm not sure UBports is the best system for a "headless" (broken screen) system. It is designed for touch input. With Halium it should be possible to put other systems on it as well ... I'm a bit out of the loop, but at some point there was a debian version and for sure there is plasma mobile, which may or may not work easier in headless style.

joe

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

@Toadtoad ADB not working yet on OP3(T)

Oof. Good point!
SSH is the way.

Toadtoad

@doniks I booted into TWRP. Opened up the adb shell and did the following:

twrp mount system
chroot system
PATH=$PATH:PATH
passwd phablet

And I got /bin/sh: 3: passwd: not found

Since it doesn't seem like I'll set up adb or ssh, any suggestions to run headlessly on my phone? Thanks.

doniks

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

@doniks I booted into TWRP. Opened up the adb shell and did the following:

yeah that doesn't sound right. up front please add pwd and ls -l before you mount, otherwise it's kinda hard to know from the distance what actually gets mounted where

twrp mount system
chroot system

the more I think about it, I think ALL halium ports use an image file and not the system partition. it looks like you are mounting the partition.

please show ls -l / inside the chroot, then we can be sure

PATH=$PATH:PATH

not sure, what you are trying to achieve here ... I don't think it does what you think it does ... I think you are adding the literal string ":PATH" to the end of the $PATH environment variable which doesn't make much sense.

However, since you are not using export I also think it does not affect the lines following, so it is (luckily/unluckily) immaterial

passwd phablet

And I got /bin/sh: 3: passwd: not found

Since it doesn't seem like I'll set up adb or ssh, any suggestions to run headlessly on my phone? Thanks.

You're jumping to conclusions.

Please do (I'm just typing from memory, so be careful when copy/pasting and give us relevant output to help you)

ls -l / 
cat /etc/fstab
mount 
mount /data 
ls -l /data

then please see here how to chroot into a halium rootfs http://docs.halium.org/en/latest/porting/debug-build/logging-in.html?highlight=chroot#logging-in

and again, just to make sure we are on the same page, please ls -l / once inside the rootfs

Toadtoad

@doniks Okay, I'll try it out. The PATH thing was a typo on my part; I did PATH=$PATH:/bin, but it seems like I didn't have the right idea from the start, so I'll try your instructions. Thanks

Edit:
ls -l /

total 3372
dr-xr-xr-x   4 root root         0 1970-01-04 02:12 acct
lrwxrwxrwx   1 root root        11 1970-01-01 00:00 bin -> /system/bin
lrwxrwxrwx   1 root root        50 1970-01-01 00:00 bugreports -> /data/user_de/0/com.android.shell/files/bugreports
drwxr-xr-x   3 root root        60 2017-01-12 13:56 cache
lrwxrwxrwx   1 root root        13 1970-01-01 00:00 charger -> /sbin/charger
dr-xr-xr-x   2 root root        40 1970-01-01 00:00 config
lrwxrwxrwx   1 root root        17 1970-01-01 00:00 d -> /sys/kernel/debug
drwxr-xr-x   8 root root      4096 2017-01-09 11:51 data
lrwxrwxrwx   1 root root        12 1970-01-01 00:00 default.prop -> prop.default
drwxr-xr-x  10 root root      3760 1970-01-04 02:12 dev
drwxr-xr-x   2 root root       140 2017-01-12 13:56 etc
-rw-r--r--   1 root root     33643 1970-01-01 00:00 file_contexts
-rw-r--r--   1 root root    674825 1970-01-01 00:00 file_contexts.bin
-rwxr-x---   1 root root   2212400 1970-01-01 00:00 init
-rwxr-x---   1 root root      3114 1970-01-01 00:00 init.rc
-rwxr-x---   1 root root       103 1970-01-01 00:00 init.recovery.hlthchrg.rc
-rwxr-x---   1 root root        52 1970-01-01 00:00 init.recovery.ldconfig.rc
-rwxr-x---   1 root root        35 1970-01-01 00:00 init.recovery.mksh.rc
-rwxr-x---   1 root root      5727 1970-01-01 00:00 init.recovery.qcom.rc
-rwxr-x---   1 root root       111 1970-01-01 00:00 init.recovery.service.rc
-rwxr-x---   1 root root      1323 1970-01-01 00:00 init.recovery.usb.rc
drwxr-xr-x   3 root root        60 1970-01-01 00:00 license
drwxr-xr-x   3 root system      60 1970-01-04 02:12 mnt
drwxr-xr-x   2 root root       200 1970-01-01 00:00 odm
drwxr-xr-x   2 root root        40 1970-01-01 00:00 oem
drwxrwxrwx   2 root root        40 1970-01-04 02:12 persist
-rw-r--r--   1 root root     23786 1970-01-01 00:00 plat_file_contexts
-rw-r--r--   1 root root      7212 1970-01-01 00:00 plat_hwservice_contexts
-rw-r--r--   1 root root      6687 1970-01-01 00:00 plat_property_contexts
-rw-r--r--   1 root root      1315 1970-01-01 00:00 plat_seapp_contexts
-rw-r--r--   1 root root     14057 1970-01-01 00:00 plat_service_contexts
dr-xr-xr-x 384 root root         0 1970-01-01 00:00 proc
lrwxrwxrwx   1 root root        15 1970-01-01 00:00 product -> /system/product
-rw-r--r--   1 root root      3042 1970-01-01 00:00 prop.default
drwxr-xr-x   3 root root        80 1970-01-01 00:00 res
drwx------   2 root root        40 2019-04-15 10:55 root
drwxr-x---   2 root root      6700 2017-01-12 13:59 sbin
drwxrwx---   3 root root      4096 2017-01-09 11:51 sdcard
-rw-r--r--   1 root root    387957 1970-01-01 00:00 sepolicy
drwxr-xr-x   2 root root        40 1970-01-04 02:12 sideload
drwxr-x--x   2 root root        40 1970-01-01 00:00 storage
dr-xr-xr-x  12 root root         0 1970-01-04 02:12 sys
drwxr-xr-x  24 109  113       4096 2017-01-10 21:47 system
drwxrwxr-x   2 root shell       80 2017-01-12 14:01 tmp
drwxr-xr-x   5 root root       180 1970-01-01 00:00 twres
-rw-r--r--   1 root root      5272 1970-01-01 00:00 ueventd.rc
drwxrwxrwx   2 root root        40 2017-01-12 13:56 usb_otg
drwxr-xr-x   3 root root        60 1970-01-01 00:00 vendor
-rw-r--r--   1 root root      6178 1970-01-01 00:00 vendor_file_contexts
-rw-r--r--   1 root root         0 1970-01-01 00:00 vendor_hwservice_contexts
-rw-r--r--   1 root root       218 1970-01-01 00:00 vendor_property_contexts
-rw-r--r--   1 root root         0 1970-01-01 00:00 vendor_seapp_contexts
-rw-r--r--   1 root root         0 1970-01-01 00:00 vendor_service_contexts
-rw-r--r--   1 root root        65 1970-01-01 00:00 vndservice_contexts

cat /etc/fstab

/dev/block/sda3 /cache ext4 rw 0 0
/dev/block/sda15 /data ext4 rw 0 0
/dev/block/sda2 /persist ext4 rw 0 0
/dev/block/sde20 /system ext4 rw 0 0
 /usb_otg vfat rw 0 0

mount

'rootfs on / type rootfs (rw,seclabel,size=2834740k,nr_inodes=708685)
tmpfs on /dev type tmpfs (rw,seclabel,nosuid,relatime,size=2918948k,nr_inodes=729737,mode=755)
devpts on /dev/pts type devpts (rw,seclabel,relatime,mode=600)
proc on /proc type proc (rw,relatime,gid=3009,hidepid=2)
sysfs on /sys type sysfs (rw,seclabel,relatime)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
tmpfs on /mnt type tmpfs (rw,seclabel,nosuid,nodev,noexec,relatime,size=2918948k,nr_inodes=729737,mode=755,gid=1000)
none on /acct type cgroup (rw,relatime,cpuacct)
tmpfs on /tmp type tmpfs (rw,seclabel,relatime,size=2918948k,nr_inodes=729737)
pstore on /sys/fs/pstore type pstore (rw,seclabel,relatime)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
/dev/block/sda15 on /data type ext4 (rw,seclabel,relatime,data=ordered)
/dev/block/sda15 on /sdcard type ext4 (rw,seclabel,relatime,data=ordered)
/dev/block/sde20 on /system type ext4 (rw,seclabel,relatime,data=ordered)

mount /data

mount: '/dev/block/sda15'->'/data': Device or resource busy

ls -l /data

1|OnePlus3:/ # ls -l /data
total 32792
-rw-------  1 root   root   33554432 1973-06-18 14:57 SWAP.img
drwxrwx--x 44 system system     4096 1973-06-18 14:58 android-data
drwxr-xr-x  3 root   root       4096 1973-06-18 14:57 cache
drwx------  2 root   root       4096 1970-01-01 00:02 lost+found
drwxrwx---  3 root   root       4096 2017-01-09 11:51 media
drwxr-xr-x  5 root   root       4096 1973-06-18 14:58 system-data
drwxr-xr-x  3 root   root       4096 2020-06-26 05:32 user-data

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.

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)