[G2 Q&A, Help & Troubleshooting] joyspeed0:
Hi,

Unrooted phone fell in the water and failed to power on.

I send it to a lab (not an LG lab). Laboratory cleaned of corrosion but didn't change any part.

The phone works now, but without Baseband and IMEI.

I tried to root/flash (KDZ and TOT)/erase (data/dalvik etc) but nothing works. Obviously I don't have a backup since the phone was unrooted.

Tried with Qualcomm NV tool and EFS professional, but I'm unable to change IMEI (I know it).

Please advise.

I'm attaching some details about the file system and the mounts:

shell@g2:/ $ mount
rootfs / rootfs ro,relatime 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
none /sys/fs/cgroup tmpfs rw,seclabel,relatime,mode=750,gid=1000 0 0
tmpfs /mnt/asec tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
/dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ro,seclabel,noatime,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,resuid=1000,errors=continue,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/sns /sns ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/drm /persist-lg ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/mpt /mpt ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/cache /cache ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/persist /persist ext4 rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=continue,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/modem /firmware vfat ro,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=cp437,iocharset=iso8859-1,shortname=lower,errors=remount-ro 0 0
/dev/block/platform/msm_sdcc.1/by-name/cust /cust ext4 ro,seclabel,nosuid,nodev,relatime,noauto_da_alloc,data=ordered 0 0
/dev/fuse /mnt/shell/emulated fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
/dev/fuse /storage/emulated/legacy fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0

shell@g2:/dev/block/platform/msm_sdcc.1/by-name $ls -l
lrwxrwxrwx root root 1970-01-01 02:00 DDR -> /dev/block/mmcblk0p4
lrwxrwxrwx root root 1970-01-01 02:00 aboot -> /dev/block/mmcblk0p5
lrwxrwxrwx root root 1970-01-01 02:00 boot -> /dev/block/mmcblk0p7
lrwxrwxrwx root root 1970-01-01 02:00 cache -> /dev/block/mmcblk0p31
lrwxrwxrwx root root 1970-01-01 02:00 cust -> /dev/block/mmcblk0p34
lrwxrwxrwx root root 1970-01-01 02:00 dbi -> /dev/block/mmcblk0p3
lrwxrwxrwx root root 1970-01-01 02:00 dbibak -> /dev/block/mmcblk0p26
lrwxrwxrwx root root 1970-01-01 02:00 drm -> /dev/block/mmcblk0p21
lrwxrwxrwx root root 1970-01-01 02:00 encrypt -> /dev/block/mmcblk0p20
lrwxrwxrwx root root 1970-01-01 02:00 fota -> /dev/block/mmcblk0p24
lrwxrwxrwx root root 1970-01-01 02:00 fsc -> /dev/block/mmcblk0p17
lrwxrwxrwx root root 1970-01-01 02:00 fsg -> /dev/block/mmcblk0p16
lrwxrwxrwx root root 1970-01-01 02:00 grow -> /dev/block/mmcblk0p36
lrwxrwxrwx root root 1970-01-01 02:00 laf -> /dev/block/mmcblk0p23
lrwxrwxrwx root root 1970-01-01 02:00 misc -> /dev/block/mmcblk0p13
lrwxrwxrwx root root 1970-01-01 02:00 modem -> /dev/block/mmcblk0p1
lrwxrwxrwx root root 1970-01-01 02:00 modemst1 -> /dev/block/mmcblk0p10
lrwxrwxrwx root root 1970-01-01 02:00 modemst2 -> /dev/block/mmcblk0p11
lrwxrwxrwx root root 1970-01-01 02:00 mpt -> /dev/block/mmcblk0p25
lrwxrwxrwx root root 1970-01-01 02:00 pad -> /dev/block/mmcblk0p9
lrwxrwxrwx root root 1970-01-01 02:00 pad1 -> /dev/block/mmcblk0p12
lrwxrwxrwx root root 1970-01-01 02:00 pad2 -> /dev/block/mmcblk0p19
lrwxrwxrwx root root 1970-01-01 02:00 persist -> /dev/block/mmcblk0p14
lrwxrwxrwx root root 1970-01-01 02:00 rct -> /dev/block/mmcblk0p29
lrwxrwxrwx root root 1970-01-01 02:00 recovery -> /dev/block/mmcblk0p15
lrwxrwxrwx root root 1970-01-01 02:00 rpm -> /dev/block/mmcblk0p6
lrwxrwxrwx root root 1970-01-01 02:00 rpmbak -> /dev/block/mmcblk0p27
lrwxrwxrwx root root 1970-01-01 02:00 sbl1 -> /dev/block/mmcblk0p2
lrwxrwxrwx root root 1970-01-01 02:00 sns -> /dev/block/mmcblk0p22
lrwxrwxrwx root root 1970-01-01 02:00 spare -> /dev/block/mmcblk0p33
lrwxrwxrwx root root 1970-01-01 02:00 ssd -> /dev/block/mmcblk0p18
lrwxrwxrwx root root 1970-01-01 02:00 system -> /dev/block/mmcblk0p30
lrwxrwxrwx root root 1970-01-01 02:00 tombstones -> /dev/block/mmcblk0p32
lrwxrwxrwx root root 1970-01-01 02:00 tz -> /dev/block/mmcblk0p8
lrwxrwxrwx root root 1970-01-01 02:00 tzbak -> /dev/block/mmcblk0p28
lrwxrwxrwx root root 1970-01-01 02:00 userdata -> /dev/block/mmcblk0p35

shell@g2:/ $ls -l
drwxr-xr-x root root 1970-01-01 02:00 acct
drwxrwx--- system cache 2015-09-29 19:39 cache
-rwxr-x--- root root 271856 2014-04-25 14:39 charger
dr-x------ root root 1970-01-01 02:00 config
drwxr-xr-x root root 1970-01-01 02:00 cust
lrwxrwxrwx root root 1970-01-01 02:00 d -> /sys/kernel/debug
drwxrwx--x system system 2009-01-02 15:00 data
-rw-r--r-- root root 133 2014-04-25 13:58 default.prop
drwxr-xr-x root root 2009-01-02 13:00 dev
lrwxrwxrwx root root 1970-01-01 02:00 etc -> /system/etc
-rw-r--r-- root root 9471 2014-04-25 14:36 file_contexts
dr-xr-x--- system system 1970-01-01 02:00 firmware
-rw-r----- root root 1944 2014-04-25 14:18 fstab.g2
-rwxr-x--- root root 202260 2014-04-25 14:39 init
-rwxr-x--- root root 1041 2014-04-25 14:18 init.environ.rc
-rwxr-x--- root root 6097 2014-04-25 14:18 init.g2.rc
-rwxr-x--- root root 3184 2014-04-25 14:18 init.g2_product.rc
-rwxr-x--- root root 2344 2014-04-25 14:18 init.galbi-sensor.sh
-rwxr-x--- root root 6847 2014-04-25 14:18 init.galbi.class_core.sh
-rwxr-x--- root root 2518 2014-04-25 14:18 init.galbi.class_main.sh
-rwxr-x--- root root 2687 2014-04-25 14:18 init.galbi.crash.sh
-rwxr-x--- root root 6466 2014-04-25 14:18 init.galbi.early_boot.sh
-rwxr-x--- root root 37883 2014-04-25 14:18 init.galbi.rc
-rwxr-x--- root root 5914 2014-04-25 14:18 init.galbi.sh
-rwxr-x--- root root 3206 2014-04-25 14:18 init.galbi.syspart_fixup.sh
-rwxr-x--- root root 29210 2014-04-25 14:18 init.galbi.usb.rc
-rwxr-x--- root root 6120 2014-04-25 14:18 init.galbi.usb.sh
-rwxr-x--- root root 2063 2014-04-25 14:18 init.lge.cmm.usb.sh
-rwxr-x--- root root 664 2014-04-25 14:18 init.lge.early.rc
-rwxr-x--- root root 3588 2014-04-25 14:18 init.lge.log.rc
-rwxr-x--- root root 2795 2014-04-25 14:18 init.lge.rc
-rwxr-x--- root root 22330 2014-04-25 14:18 init.lge.usb.rc
-rwxr-x--- root root 3029 2014-04-25 14:18 init.lge.usb.sh
-rwxr-x--- root root 21154 2014-04-25 14:19 init.rc
-rwxr-x--- root root 0 2014-04-25 14:18 init.recovery.galbi.rc
-rwxr-x--- root root 9173 2014-04-25 14:18 init.target.rc
-rwxr-x--- root root 1795 2014-04-25 14:18 init.trace.rc
-rwxr-x--- root root 5397 2014-04-25 14:18 init.usb.rc
-rwxr-x--- root root 67824 2014-04-25 14:18 initlogo_fhd.rle
-rw-r--r-- root root 506 2014-04-25 14:19 lgdms.fota.rc
-rw-r--r-- root root 1463 2014-04-25 14:19 lgdms.fota_update.rc
drwxrwxr-x root system 1970-01-01 02:00 mnt
drwxrwxr-x system system 2015-09-30 16:28 mpt
drwxrwx--x system system 2015-09-30 12:50 persist
drwxrwx--x system system 1970-01-02 08:48 persist-lg
lrwxrwxrwx root root 1970-01-01 02:00 pkg -> /storage/sdcard0
-rw-r--r-- root root 1702 2014-04-25 14:18 preload_sl.sh
dr-xr-xr-x root root 1970-01-01 02:00 proc
-rw-r--r-- root root 2324 2014-04-25 14:36 property_contexts
drwxr-xr-x root root 2014-04-25 14:18 res
drwx------ root root 2014-04-25 14:20 root
drwxr-x--- root root 2014-04-25 14:39 sbin
lrwxrwxrwx root root 1970-01-01 02:00 sdcard -> /storage/emulated/legacy
-rw-r--r-- root root 774 2014-04-25 14:36 seapp_contexts
-rw-r--r-- root root 82342 2014-04-25 14:19 sepolicy
-rw-r--r-- root root 1 1970-01-01 02:00 smpl_boot
drwxr-xr-x root root 1970-01-01 02:00 sns
drwxr-x--x system sdcard_r 1970-01-01 02:00 storage
dr-xr-xr-x root root 1970-01-01 02:00 sys
drwxr-xr-x root root 1970-01-01 02:00 system
drwxr-xr-x root root 1970-01-01 02:00 tmp-mksh
lrwxrwxrwx root root 1970-01-01 02:00 tombstones -> /data/tombstones
-rw-r--r-- root root 9098 2014-04-25 14:18 ueventd.g2.rc
-rw-r--r-- root root 4083 2014-04-25 14:18 ueventd.rc
lrwxrwxrwx root root 1970-01-01 02:00 vendor -> /system/vendor