[Miscellaneous Android Development] EoflaOE:
View attachment 5855171

Aptivi presents...

LineageOS 14.1 for Lenovo Tab3 7 Essential TB3-710F​

Disclaimer

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#include <std_disclaimer.h>
/*
*
* I'm not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*
*/

We apologize for your inconvenience, but this ROM has been abandoned due to the complexity of the bugs reported due to the closed source nature of MTK devices. Please use the ROM with caution if you can't afford a new tablet.

Description

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LineageOS is a free, community-built, aftermarket firmware distribution of Android 10, which is designed to increase performance and reliability over stock Android for your device.

LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restores the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.

All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review. You can also view the Changelog for a full list of changes & features.

Downloads

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* For ROM:

- Link to all the LineageOS builds made by us is found on MEGA and AndroidFileHost!

- Link to download GApps

* For recovery:

- Link to download Tzul's TWRP (3.0) or our TWRP (3.7)

- Link to download SP Flash Tool

Installation

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First, make sure that your TB3-710F tablet contains the TWRP recovery to be able to install LineageOS 14.1 into it. If you want to get the recovery, you can follow this guide on YouTube to install the recovery or you can follow the recovery part of this thread. After installing the recovery, follow the steps:

1. Download the latest build of LineageOS 14.1 in the MEGA folder listed in the Downloads section. It's found in the LineageOS > TB3-710F folder.

2. Download the GApps package

3. Place the downloaded files to your tablet. We recommend storing them on your external SD card.

4. Power off your Lenovo TB3-710F.

5. Turn the tablet on to recovery mode by holding the POWER + VOLUME UP + VOLUME DOWN buttons simultaneously until you see the TeamWin logo.

6. Backup your system, data, boot, and recovery partitions. TWRP provides you an option to store the backup on your external SD card.

7. Now, wipe your system, data, cache, and dalvik cache partitions by Wipe > Advanced Wipe.

>>> If you're upgrading LineageOS 14.1 to the newer build, don't wipe the data partition. The first time you reboot into the newer build, the boot time will be longer. It should take no more than 15 minutes. If any problems occur, wipe your data partition.

8. Once the wipe is done, go to Install and navigate to the folder that contains the LineageOS zip file. It should say "lineage-14.1-xxxxxxxx-UNOFFICIAL-TB3710F.zip". Click on the ZIP file and install it. Beware that it may take a long time.

9. Now, repeat the previous step, but this time, selecting the GApps ZIP file. Make sure the version you're installing is GApps for Android 7.1 ARM Pico.

10. Once you're done, wipe the cache and dalvik cache to make sure that no stale cache is left.

11. Go to Reboot > System to boot to your LineageOS installation.

Known issues

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This ROM is not perfect and could have stability issues.

* Build March 11th, 2023 -> January 3rd, 2024

- GPS may have trouble initializing

- Internal speakers may only play one sound channel instead of mono just like Stock ROM

* Build March 8th, 2023

- Camera not working with the green screen

- E-mail app not working with force closes

- GPS may have trouble initializing

- Internal speakers may only play one sound channel instead of mono just like Stock ROM

* Build March 5th, 2023

- Camera not working with the green screen

- E-mail app not working with force closes

- GPS may have trouble initializing

- Internal speakers may only play one sound channel instead of mono just like Stock ROM

- Microphone may not work

- WiFi listing may display "NVRAM WARNING = ERR 0x10"

Working features

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* WiFi and Bluetooth

* Sound and Headphones

* Microphone [Build March 8th onwards]

* Touch

* SD card support

* Camera

* ...and more

Changes

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* lineage-14.1-20240107-UNOFFICIAL-TB3710F.zip [Beta]

- Added FM radio and Recorder

* lineage-14.1-20240105-UNOFFICIAL-TB3710F.zip [Internal]

- Fixed offline charge screen not turning off

* lineage-14.1-20240103-UNOFFICIAL-TB3710F.zip [Beta]

- Added compatibility with our 3.7.0 TWRP build

* lineage-14.1-20230323-UNOFFICIAL-TB3710F.zip [Beta]

- Fixed Internal storage issues with sdcardfs by reverting to FUSE

* lineage-14.1-20230311-UNOFFICIAL-TB3710F.zip [Beta]

- Fixed camera not working

* lineage-14.1-20230310-UNOFFICIAL-TB3710F.zip [Internal]

- Fixed E-mail force closes

* lineage-14.1-20230308-UNOFFICIAL-TB3710F.zip [Alpha]

- Fixed microphone not working

- Suppressed the "NVRAM WARNING = ERR 0x10" warning message

- Imported some patches from the device tree

* lineage-14.1-20230305-UNOFFICIAL-TB3710F.zip [Alpha]

- Fixed Android failing to boot because of missing libstlport.so

- Initial public alpha release

* lineage-14.1-20230304-UNOFFICIAL-TB3710F.zip [Internal]

- Initial internal release

Reporting issues

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* DO NOT report bugs if you're running a custom kernel or you installed Xposed.

* Grab a logcat right after the problem has occurred. (Please include at least a few pages of the log, not just the last few lines, unless you know what you're doing.)

* If it is a random reboot, grab /sys/fs/pstore/console-ramoops and /sys/fs/pstore/dmesg-ramoops-0. (Do not bother getting a logcat unless you can get it just before the reboot. A logcat after a reboot is useless)

* If the problem disappears after running "setenforce 0" from a root shell, grab /data/misc/audit/audit.log

Remember to provide as much info as possible. The more info you provide, the more likely that the bug will be solved. Please also do not report known issues. Any bug not reported in the bug report format below may be ignored.

What is your--
LineageOS version:
LineageOS Download url:
Gapps version:

Did you--
wipe:
restore with titanium backup:
reboot after having the issue:

Are you using--
a task killer:
a non-stock kernel:
other modifications:

Provide any additional information (observations/frequency of problem/last version it worked on/etc) as needed:

Credits

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* Android AOSP Team: for the Android operating system source code

* LineageOS Team: for the ROM source code

* andrew264: for his kernel, device, and vendor trees for TB3-710F

* We maintain our own forks for his trees that shouldn't have been abandoned. Links below:

- Kernel: [Original] [Fork]

- Device: [Original] [Fork]

- Vendor: [Original] [Fork]

* @Tzul: for his TWRP build for TB3-710F

Screenshots

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Screenshots are found in the bottom of this post as attachments.