Thank you @neutronscott for making this possible! Thank you @lgexalter1 and @Biden2020prez and @yeti and @sdmde for helping me figure out different things about this phone. If anyone has any other ROMs they would like to add to this list please email me at t408dl@gmail.com Prerequisites: ADB , MTKMeta Tool , MTK Drivers, Fastboot Drivers, brains. Warning you are flashing custom firmware and can potentially brick your device! This process will delete everything on your device and there is no way around this! Make sure you are choosing a ROM that is for your specific device! Download a ROM from the list below and extract the super.bin Download VBmeta files and extract them Place all your files in the ADB folder Install MTK drivers and Fastboot drivers Open MTKMeta tool and select 'Reboot Fastboot Mode' Plug in your phone into the computer while it is powered off Once your phone screen says: =>FASTBOOT mode... on it run fastboot flashing unlock in adb Using the volume keys unlock the bootloader Once bootloader is unlocked run the following codes to disable avb and flash the new rom fastboot flash --disable-verity --disable-verification vbmeta vbmeta.bin fastboot flash --disable-verity --disable-verification vbmeta_system vbmeta_system.bin fastboot flash --disable-verity --disable-verification vbmeta_vendor vbmeta_vendor.bin fastboot flash super super.bin This step takes 35-45 minutes Once completed run fastboot reboot to restart your device You now have a kosher rom! Quicker but potentially lest kosher method: Follw steps 1-8 from previous instructions Download @neutronscott custom recovery Run the following codes to flash vbmeta and recovery and reboot into recovery: fastboot flash --disable-verity --disable-verification vbmeta vbmeta.bin fastboot flash --disable-verity --disable-verification vbmeta_system vbmeta_system.bin fastboot flash --disable-verity --disable-verification vbmeta_vendor vbmeta_vendor.bin fastboot flash recovery recovery2.img fastboot reboot recovery Run the following commands to flash super: adb shell su -c chmod a+rw /dev/block/mmcblk0p41 adb push super.bin /dev/block/mmcblk0p41 Here are links to ROMS: For t408dl (Tested on phones both pre and post update): Talk only : No browser, texting, email, gallery. Talk&Text : No Browser or Email, added Voice Access. To enable voiceaccess: Dial *#*#33284#*#* to enable usb debugging Run adb shell settings put secure enabled_accessibility_services com.google.android.apps.accessibility.voiceaccess/com.google.android.apps.accessibility.voiceaccess.JustSpeakService adb shell am startservice com.google.android.apps.accessibility.voiceaccess/com.google.android.apps.accessibility.voiceaccess.JustSpeakService Finnish setup, then activate VoiceAccess from notifications, say: "Open voice Access Settings" You can set the Favorites key as an activation button I will be posting more as I make them ~ For those with editable ROMs below are some tips Tips: *#*#33284#*#* enables usb debbuging sdmde tip: *#*#217703#*#* Shows all installed apps @lgexalter1 tip: List Launcher from @xxdeafgirl works great on this phone. Just don't set it as default home because you won't be able to dial from the home screen as with the stock launcher. I set a shortcut key to it and can access all apps now. Biden2020prez tip: You can remove system apps using adb shell pm suspend --user 0 application.to.remove Example: adb shell pm suspend --user 0 org.chromium.chrome removes the browser. You can set a shortcut key in: Menu > Settings > Phone Settings > Key shortcuts

Instructions for installing a kosher ROM on TCL Flip2/Classic T408DL

darth

Thank you [Login to see the link] for making this possible! Thank you [Login to see the link] and [Login to see the link] and [Login to see the link] and [Login to see the link] for helping me figure out different things about this phone. If anyone has any other ROMs they would like to add to this list please email me at [Login to see the link]

Prerequisites: [Login to see the link], [Login to see the link], MTK Drivers, Fastboot Drivers, brains.

Warning you are flashing custom firmware and can potentially brick your device! This process will delete everything on your device and there is no way around this! Make sure you are choosing a ROM that is for your specific device!

Download a ROM from the list below and extract the super.bin
Download [Login to see the link] and extract them
Place all your files in the ADB folder
Install MTK drivers and Fastboot drivers
Open MTKMeta tool and select 'Reboot Fastboot Mode'
Plug in your phone into the computer while it is powered off
Once your phone screen says: =>FASTBOOT mode... on it run fastboot flashing unlock in adb
Using the volume keys unlock the bootloader
Once bootloader is unlocked run the following codes to disable avb and flash the new rom
fastboot flash --disable-verity --disable-verification vbmeta vbmeta.bin
fastboot flash --disable-verity --disable-verification vbmeta_system vbmeta_system.bin
fastboot flash --disable-verity --disable-verification vbmeta_vendor vbmeta_vendor.bin
fastboot flash super super.bin This step takes 35-45 minutes
Once completed run fastboot reboot to restart your device

You now have a kosher rom!

Quicker but potentially lest kosher method:

Follw steps 1-8 from previous instructions
Download [Login to see the link] [Login to see the link]
Run the following codes to flash vbmeta and recovery and reboot into recovery:
fastboot flash --disable-verity --disable-verification vbmeta vbmeta.bin
fastboot flash --disable-verity --disable-verification vbmeta_system vbmeta_system.bin
fastboot flash --disable-verity --disable-verification vbmeta_vendor vbmeta_vendor.bin
fastboot flash recovery recovery2.img
fastboot reboot recovery
Run the following commands to flash super:
adb shell su -c chmod a+rw /dev/block/mmcblk0p41
adb push super.bin /dev/block/mmcblk0p41

Here are links to ROMS:
For t408dl (Tested on phones both pre and post update):
[Login to see the link]: No browser, texting, email, gallery.
[Login to see the link]: No Browser or Email, added Voice Access.

To enable voiceaccess:
Dial *#*#33284#*#* to enable usb debugging
Run adb shell settings put secure enabled_accessibility_services com.google.android.apps.accessibility.voiceaccess/com.google.android.apps.accessibility.voiceaccess.JustSpeakService adb shell am startservice com.google.android.apps.accessibility.voiceaccess/com.google.android.apps.accessibility.voiceaccess.JustSpeakService
Finnish setup, then activate VoiceAccess from notifications, say: "Open voice Access Settings"
You can set the Favorites key as an activation button

I will be posting more as I make them
~

For those with editable ROMs below are some tips

Tips:

*#*#33284#*#* enables usb debbuging
sdmde tip:
*#*#217703#*#* Shows all installed apps
[Login to see the link] tip:
[Login to see the link] from [Login to see the link] works great on this phone. Just don't set it as default home because you won't be able to dial from the home screen as with the stock launcher. I set a shortcut key to it and can access all apps now.
Biden2020prez tip:
You can remove system apps using adb shell pm suspend --user 0 application.to.remove
Example: adb shell pm suspend --user 0 org.chromium.chrome removes the browser.
You can set a shortcut key in: Menu > Settings > Phone Settings > Key shortcuts

Techgen

darth Thanks, the more clear we can be on providing instructions, the less questions we'll have to field (hopefully). Too bad you can't provide a link to brains... 😆

dovwcom

darth I have regular Waze, Google Maps, 1Weather and WhatsApp with List Launcher from [Login to see the link] working on my Tracfone T408DL together with mouse toggle even after disconnecting phone from PC through grab as [Login to see the link] (as long as I don't reboot, keep the phone charged and have lockscreen disabled). My Browser and Email are suspended through adb as per OP.

Note 1: I couldn't scroll up with the mouse nor do drag (for one time setup and settings Genymotion's scrcpy was very helpful because that worked fully on my apps)

Note 2: a4fmouse.apk from the Apps4Flip site click on selections doesn't work for me

Note 3: I want to install Google Voice and in order to get it working tried several ways to install Core Gapps zip (which I pushed to my SDcard) with Magisk but got errors on trying to add the module- in general should Magisk modules install on this neutron.img? Is there a way to get the Google prereqs working on this phone?

dovwcom

darth I have read all of the massive TCL t408dl thread and additional material elsewhere on these forums and yet it's not at all clear to me what the phrase "Kosher" ROM means to you and others. To me the basic of being Kosher is that in addition to a default lack of browser, texting and internet based apps there is some level of security preventing ROM/app installation. In general and in the case of your ROM does that require additional MDM software? Please clarify....

whatelseshouldido

darth The MTK Drivers link expired. Can you please upload it to google drive or send a link to the correct drivers?

Flippy

darth [Login to see the link]: No Browser or Email, added Voice Access.

Can you make a version with email, and a few added apps (waze+weather etc.)
What about hotspot, is it blocked?
Is software reset blocked? Or will it reset to the same software thats running (no browser)?

Hi1

darth your giving instructions gow to install the kosher rom and after finishing the instructions you have 2 links talk only or talk and text so my question is what is the default kosher rom if I just follow the instructions?

dovwcom

ChaseChiller this thread is for kosher ROMs that don't allow app installation - if you're looking for a ROM that doesn't have any restrictions [Login to see the link] created two boot images which do allow apps to be installed - and his work is linked to by darth in the OP of the currently 700+ thread that started this all.

Hi1 if you follow instructions in the first instruction you'll extract the super.bin from one of the two ROMs linked to at the end which are the talk only ROM and the talk and text ROM so obviously whichever of those two you take the super.bin out of will be the ROM you get 🙂

darth your instructions have flashing the super.bin which by default may take 35-45 minutes - is there any reason that you haven't updated your instructions to suggest first flashing [Login to see the link] 's recovery.bin which cuts flashing the super.bin down to less than two minutes?

Biden2020prez

Another prerequisite: [Login to see the link]
Install these before starting.

Another tip: You can remove system apps using

adb shell pm suspend --user 0 application.to.remove

Example: adb shell pm suspend --user 0 org.chromium.chrome removes the browser.

Biden2020prez

Techgen I don't think we should spend too much time on instructions because hopefully we will have a kosher firmware which will be preferable.

Techgen

Biden2020prez True. BTW I just looked on Amazon, and it seems like its sold out 😦
EDIT: Just got one on ebay

Apps4Flip-Admin

Techgen A few frum cell phone store owners said they are going to start stocking up on the tcl flip 2 now that a good free kosher option looks doable. I’m not sure if that’s why Amazon’s out of stock but you never know.

I plan on working on a simple thorough guide for the main apps4flip site but I plan on waiting until we have the full kosher rom to do it so I don’t have to write the guide up twice

Techgen

Apps4Flip-Admin I was thinking the same.
Maybe it's better to keep it a little complicated in the meantime...

chaimzalman

What happens when you initiate recovery mode?

Biden2020prez

chaimzalman Want to explain your question?

chaimzalman

Biden2020prez if you remove the browser you can still reset the phone?

Biden2020prez

Yes. We are working on a way to allow Factory reset but keep browser removed.

Biden2020prez

Darth your link for drivers was removed because of violation of google drive terms. I had the same issue when i uploaded. Try putting it in a zip

Flippy

The download link for MTK Drivers is expired. Is this the correct one?
[Login to see the link]

Once it extracts the folders, which is the correct one to install?

Driver Auto Installer .1524
Driver Auto Installer .1612
Driver Auto Installer .1632
MTK Driver ext

Flippy

neutronscott I had trouble with that originally. I ended up installing one or two and getting it, but can we set the record straight?

Flippy The download link for MTK Drivers is expired. Is this the correct one?
[Login to see the link]

Once it extracts the folders, which is the correct one to install?

Driver Auto Installer .1524
Driver Auto Installer .1612
Driver Auto Installer .1632
MTK Driver ext

ZTEGuy

dovwcom Note 2: a4fmouse.apk from the Apps4Flip site click on selections doesn't work for me

the mouse doesn't work on android 11 phones

Apps4Flip-Admin

dovwcom In general removing with adb is not a great way to remove the browser and make a phone kosher. The best way to do it is to remount the system as read write and remove the actual browser and email apks. This way even if you reset the browser and email apps are still removed.

dovwcom

ZTEGuy I know about that bug and nevertheless a) Genymotion's scrcpy works like a treat when I have the luxury of using adb and b) [Login to see the link] 's grab binary together with the script run as nohup to enable virtual mouse from the Quickdial works even untethered (not attached to PC) for the most part except that among other things it doesn't do scroll up so I tried to use a4fmouse.apk together with it because I knew that has an a4f scroll mode but it didn't work at all neither with [Login to see the link] 's script toggled nor without unlike scrcpy that just works regardless

darth

dovwcom It is just the lack of browser and texting etc and blocking the ability for app installation. I didnt put on any MDM software or security against future ROM installation.

dovwcom

darth Apps4Flip-Admin I understand. So 2 questions:

1) Taking the features from the original FilterLG filter and applying them here I have marked the features that I understand are in your ROM with an x and left the rest with just a dash beforehand please comment if different:

FilterLG app basics
X Blocks internet access on the device (no browser even after reset)
x Blocks installing additional apps
– Blocks software updates
– Blocks ability to wipe/reset the device
– Blocks using device as a hotspot
– Blocks using a public wifi
– Blocks using voice commands
– Blocks setting a pin code on the device
– Blocks encrypting/decrypting the device
– Blocks Safe/Recovery/Download modes
– Enforced wallpaper on the device

Extras
x Block Email (even after reset)
x Block Text Messaging (even after reset)
X No Gallery (this feature in tcl408dl ROM and not filterlg)
– Block Video Player
– Block SD Card
– Block Camera
– Block Bluetooth

2) Would the FilterLG safely work on the TCL408dl out of the box?