[UNIVERSAL][GUI-DEV][ANDROID DEV-EL][i");] LG Optimus F7 (US780, AS870, BM870)

ad612126157 · Nov 22, 2018

Hello XDA i"):, I am running into issues putting the LG Optimus F7 (US780) together the way I would like to. I have Stock Android 4.1.2, Baseband Version M8960A----, Kernel Version 3.4.0.freedom, Build JZO54K, Software US78011a, PRI version 01. I wanted to get to Android 7.0/8.0/9.0 Nougat/Oreo/Pie for this phone model (API 21+?), and options to other versions of firmware. I am not sure how.

I currently have the Stock Firmware, flashed Philz Recovery, and flashed the Freedom Kernel per these link directions i");

Download mode (hold "volume up" then plug-in usb, when phone is off, do not use the power button.)
Recovery mode (hold "volume down" and "Power button" then follow on screen instructions.)
**I used "2nd init" recovery (CWM) to initiate this process, and it is still currently in there, it opens sometimes...2 recoveries? (volume down and plug in usb?? or initiate from within system while phone is on.)

1.) https://androidforums.com/threads/root-recovery-touch-non-touch-optimus-f7-fx1.829374/

In recovery flash i");
2.) https://intechgeek.com/lg-optimus-f7-kernel/#more-297
or (potentially)
2.a.) https://androidforums.com/threads/kernel-lg870-freedom-kernel-updated-9-14-14.810988/

In recovery, I flashed Root 2.82 SR5 to update Root 1.99 with these instructions i");
3.) https://download.chainfire.eu/1220/SuperSU/SR5-SuperSU-v2.82-SR5-20171001224502.zip?retrieve_file=1
!");

Code:

The above is a good system but:
(I wanted the "international unlocked/open features" ) :

1.a.) I thought the boost mobile was international/unlocked https://lg-firmwares.com/lg-870-firmwares/firmwares/

I have the backup of my working system (How to attach files?). It has Android 4.1.2 Freedom Kernel 3.4.0. Root 2.82 RS5, Philz Recovery.

I considered flashing Root 2.82 SR5 "System Mode" but I was unsure what "System Mode" meant or was for. (option)
3.a.) https://forum.xda-developers.com/apps/supersu/v2-64-2-66-supersu-mode-t3286120

Then, I wanted to do a few things and have changed my mind along the way a few times. I wanted to deodex and found it inherently difficult. I wanted to modify where necessary to open various features. I then found non-stock roms for the device:
4.) http://guideroot.net/lg-optimus-f7-download-firmware-android-8-0-o/

For some reason what I am running into is a phone that disconnects and reconnects while in download mode, and does not show as a device when I try to use "fastboot devices". I tried the registry edit in this fashion:
5.) https://community.acer.com/en/discussion/367018/android-usb-devices-keep-connecting-and-disconnecting-on-r7

I looked here and I tried the dial code and the linked Power Saving options to no avail:
6.) https://androidforums.com/threads/rapid-usb-connecting-disconnecting-problem-wtf.886075/

Is there a way I can make the Android 7.0/8.0/9.0 Nougat/Oreo/Pie into a flashable .zip or restore from recovery?
Do I just need to put the MD5 checksum file in the .zip folder? (Answer: NO, there is more to it, see points A-G below)
This would be the easiest solution if it works..does anyone have a flashable backup or .zip of Android 7/8/9?

I was switching through recoveries available (stock, Philz, CWM, and I tried various versions of TWRP (didn't work/ not ported to phone?))
and flashing as a recovery by changing the md5 checksum. I was thinking one could easily switch through several different "systems" in the same sense.
I.e. nandroid.md5

Code:

1206d938f5134e91b6d665963a3b6d83  boot.img
10cfbc80f2f32cb2695a1b5252bdaddd  recovery.img
f99466ea6669a62d391e3529bc6ff3e3  system.ext4.tar.a
c536ef897fbc5463c5bc490af6331bc6  system.ext4.tar.b
d41d8cd98f00b204e9800998ecf8427e  system.ext4.tar

d30337df9e8fcb7fa8d62d56bbd0f908 recovery.img Stock
c268160e7fe0c7eb6eb227d6127b5311 recovery.img TWRP 2.8.6 (didn't work)
7b1e3ac64571fe467aed602acc661a7b recovery.img TWRP 3.0.0 (didn't work)
6117790563a47026be46aca6265994b7 recovery.img TWRP 3.1.1 (didn't work)
10cfbc80f2f32cb2695a1b5252bdaddd recovery.img PHILZ

( Through different systems (Android 8) by using adb shell (at recovery) or terminal emulator (phone), df, ls -al /dev/block/*/, et al, and dd if=/starage/sdcard1/inputfile(system).img of=/dev/block/mmcblk0pIE

Misaligned (at one point working)
dd if=/external_sd/clockworkmod/ROM/system.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p15
dd if=/external_sd/clockworkmod/ROM/system_other.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p14
dd if=/external_sd/clockworkmod/ROM/vendor.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p17
dd if=/external_sd/clockworkmod/ROM/radio.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p18
dd if=/external_sd/clockworkmod/ROM/modem.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p1
dd if=/external_sd/clockworkmod/ROM/bootloader.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p27
dd if=/external_sd/clockworkmod/ROM/boot.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p23
dd if=/external_sd/clockworkmod/ROM/hosd.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p24
dd if=/external_sd/clockworkmod/ROM/aboot.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p22
dd if=/external_sd/clockworkmod/ROM/xbl.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p12
dd if=/external_sd/clockworkmod/ROM/tz.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p16
dd if=/external_sd/clockworkmod/ROM/keymaster.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p26
dd if=/external_sd/clockworkmod/ROM/hyp.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p25
dd if=/external_sd/clockworkmod/ROM/cmnlib64.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p28
dd if=/external_sd/clockworkmod/ROM/rpm.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p8
dd if=/external_sd/clockworkmod/ROM/bootlocker.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p2
dd if=/external_sd/clockworkmod/ROM/devcfg.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p3
dd if=/external_sd/clockworkmod/ROM/pmic.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p5
dd if=/external_sd/clockworkmod/ROM/apdp.img of=/dev/block/platform/msm_sdcc.1/mmcblk0p6

I.e. for updater script: package_extract_file("system.img", "/dev/block/platform/msm_sdcc.1/mmcblk0p15")

I flashed this image to the cache, it worked, then I tried flashing the rest of it, cleared the cache.. looking at BrickJig:
https://forum.xda-developers.com/ga...oUye9j5KTJ0uwSkqSLvTvOBhn3x1R_iW438kEzksGMS9c

https://www.instructables.com/id/US...8evS5RdqBoQv0bImE2XLhPxMx41vtsR5_sIrBjXU9EuyM

)

Original "PIT" drwxr-xr-x root root 2018-11-16 04:21 by-name
drwxr-xr-x root root 2018-11-16 04:21 by-num
lrwxrwxrwx root root >100823040 bytes 2018-11-16 04:21 mmcblk0 -> /dev/block/mmcblk0
lrwxrwxrwx root root 524288 bytes 2018-11-16 04:21 aboot -> /dev/block/mmcblk0p5
lrwxrwxrwx root root 12582912 bytes 2018-11-16 04:21 boot -> /dev/block/mmcblk0p7
lrwxrwxrwx root root >100823040 bytes 2018-11-16 04:21 cache -> /dev/block/mmcblk0p17
lrwxrwxrwx root root 8388608 bytes 2018-11-16 04:21 drm -> /dev/block/mmcblk0p22
lrwxrwxrwx root root 524288 bytes 2018-11-16 04:21 encrypt -> /dev/block/mmcblk0p28
lrwxrwxrwx root root 33554432 bytes 2018-11-16 04:21 fota -> /dev/block/mmcblk0p23
lrwxrwxrwx root root 3145728 bytes 2018-11-16 04:21 fsg -> /dev/block/mmcblk0p20
lrwxrwxrwx root root >100823040 bytes 2018-11-16 04:21 grow -> /dev/block/mmcblk0p30
lrwxrwxrwx root root 52428800 bytes 2018-11-16 04:21 lgipa -> /dev/block/mmcblk0p27
lrwxrwxrwx root root 1677216 bytes 2018-11-16 04:21 misc -> /dev/block/mmcblk0p13
lrwxrwxrwx root root 67108864 bytes 2018-11-16 04:21 modem -> /dev/block/mmcblk0p1
lrwxrwxrwx root root 3145728 bytes 2018-11-16 04:21 modemst1 -> /dev/block/mmcblk0p10
lrwxrwxrwx root root 3145728 bytes 2018-11-16 04:21 modemst2 -> /dev/block/mmcblk0p11
lrwxrwxrwx root root 33554432 bytes 2018-11-16 04:21 mpt -> /dev/block/mmcblk0p24
lrwxrwxrwx root root 1024 bytes 2018-11-16 04:21 pad -> /dev/block/mmcblk0p9
lrwxrwxrwx root root 8388608 bytes 2018-11-16 04:21 persist -> /dev/block/mmcblk0p16
lrwxrwxrwx root root 8192 bytes 2018-11-16 04:21 rct -> /dev/block/mmcblk0p29
lrwxrwxrwx root root 12582912 bytes 2018-11-16 04:21 recovery -> /dev/block/mmcblk0p19
lrwxrwxrwx root root 524288 bytes 2018-11-16 04:21 rpm -> /dev/block/mmcblk0p6
lrwxrwxrwx root root 524288 bytes 2018-11-16 04:21 rpmbak -> /dev/block/mmcblk0p26
lrwxrwxrwx root root 524288 bytes 2018-11-16 04:21 sbl1 -> /dev/block/mmcblk0p2
lrwxrwxrwx root root 524288 bytes 2018-11-16 04:21 sbl2 -> /dev/block/mmcblk0p3
lrwxrwxrwx root root 1048576 bytes 2018-11-16 04:21 sbl3 -> /dev/block/mmcblk0p4
lrwxrwxrwx root root 8388608 bytes 2018-11-16 04:21 sns -> /dev/block/mmcblk0p12
lrwxrwxrwx root root 8192 bytes 2018-11-16 04:21 ssd -> /dev/block/mmcblk0p21
lrwxrwxrwx root root >100823040 bytes 2018-11-16 04:21 system -> /dev/block/mmcblk0p14
lrwxrwxrwx root root 75497472 bytes 2018-11-16 04:21 tombstones -> /dev/block/mmcblk0p18
lrwxrwxrwx root root 524288 bytes 2018-11-16 04:21 tz -> /dev/block/mmcblk0p8
lrwxrwxrwx root root 524288 bytes 2018-11-16 04:21 tzbak -> /dev/block/mmcblk0p25
lrwxrwxrwx root root 524288 bytes 2018-11-16 04:21 userdata -> /dev/block/mmcblk0p15

drwxr-xr-x root root 2018-11-16 04:21 by-num
lrwxrwxrwx root root >100823040 bytes 2018-11-16 04:21 mmcblk1 -> /dev/block/mmcblk1
lrwxrwxrwx root root >100823040 bytes 2018-11-16 04:21 mmcblk1p1 -> /dev/block/mmcblk1p1

Is Android 7/8/9 even compatible with this phone? I am going to maybe try to build a .tar file from the systems .img's of Android 7/8/9 and go from there or when I get some time follow through A-G below.

For some reason that is where I am stuck for now. It seems a little bit unnatural that it would work for the original firmware flash but now it is troubling with this disconnect/reconnect issue. I am considering starting from the top except that the disconnect issue still exists.

If you have any ideas please feel free to suggest a solution.

A few more things I am interested in but am unable to build into without a reasonable grounding/base (Android 7/8/9). I was looking to make firmware upgrades more streamlined for after market, such that Linux, has Grub, and finds, at least some

peaktogoo · Oct 22, 2018 at 4:52 PM

Flash Magisk instead of that root 2.82 thing

ad612126157 · Oct 20, 2018 4 0 0

Peak.Krittin said:
Flash Magisk instead of that root 2.82 thing

Unfortunately, Magisk is for Android 5 Lollipop (21+) and above... I am stuck at Android 4.1.2.
Thank you for showing me the option for future/other phones.

https://www.xda-developers.com/how-to-install-magisk/
https://www.apkmirror.com/apk/topjohnwu/magisk-manager/
https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445

peaktogoo · Oct 23, 2018 at 8:55 AM

Hopefully, good developer got the phone and make great rom for your device!
also ...
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[UNIVERSAL][GUI-DEV][ANDROID DEV-EL][i");] LG Optimus F7 (US780, AS870, BM870)

ad612126157

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