Yoga Tab 3 Starter Thread

[tapioco2000]

Same here, few days ago i've got the update, free ram at ~22MB (!!!), downgraded back to stock 5.1.1 lolipop, now free ram at ~350-400MB (with the same apps installed, super fast now). Could'nt wait for next "great" update because I use my tab at work.

how do you manage downgrading to lollipop? Simply with a factory reset?
now my tablet is useless.

 

[wpinacz]

how do you manage downgrading to lollipop? Simply with a factory reset?
now my tablet is useless.

I've got factory rom after I've soft-bricked my YT3-850L, see link at #536 post there's all info about it.

 

[Neo0]

how do you manage downgrading to lollipop? Simply with a factory reset?
now my tablet is useless.

To downgrade you can flash a ROM in fastboot mode. This will wipe all your data. After that you can stay on an early version or update till your desired firmware.

 

[cleverdicky]

Apparently the firm 6.0 is already on the Russian site for tablets 850F version Wifi only.

Hi guys, sorry to resurect this old thread but I've been searching for ages to find a later rom to upgrade my old tablet.
The Yoga tab3 YT3-850F (wifi)
Not m, or L or x50
I appreciate its ancient, but it does / did what I need and was quite happy with it up to a point.
Trouble is I'm sure it's succumed to a few nasties and it just wont work the same even after a reset.
I have read there is an android 6. firmware about, links to russian site, but all links I've followed no longer work.

Has there ever been an decent custom roms made for this little fellow, or would anyone still have a copy of 6. lurking around .
Much appreciated :good:

 

[Kroll888]

Hello,
I'm looking for stock ROM for YT3-X90L LTE (4/64 Intel Atom)
yt3-x90l_usr_s200357_2003030244_ww17_bp_row
Or at least version yt3-x90l_usr_s200307.

Anyone still have it and can share it?

 

[Jewizzle]

VERY URGENT!! VERY URGENT!!

Hello everyone,
Run into a problem in stock recovery, after an encryption failure on the x50f tablet. Now non of the partitions will mount hence I cannot factory reset or flash anything. Error mounting blocks and partition.
ANYONE WITH A SOLUTION??!!

 

[Gramdalf]

VERY URGENT!! VERY URGENT!!

Hello everyone,
Run into a problem in stock recovery, after an encryption failure on the x50f tablet. Now non of the partitions will mount hence I cannot factory reset or flash anything. Error mounting blocks and partition.
ANYONE WITH A SOLUTION??!!

Try lenovo LMSA: https://support.lenovo.com/ca/en/downloads/ds101291-rescue-and-smart-assistant-lmsa

 

[Gramdalf]

Hello,
I'm looking for stock ROM for YT3-X90L LTE (4/64 Intel Atom)
yt3-x90l_usr_s200357_2003030244_ww17_bp_row
Or at least version yt3-x90l_usr_s200307.

Anyone still have it and can share it?

Try this: https://support.lenovo.com/ca/en/downloads/ds101291-rescue-and-smart-assistant-lmsa

 

[svenjuga]

Hi,
is anybody interested in building a debloated, unGoogled, fast and battery saving ROM from stock for YT3-X50L? I have just hab success and could share instruction as well as flashable zip. I still haven't figured out how to create a new thread. So if someone is interested I would post here.

 

[Gramdalf]

Hi,
is anybody interested in building a debloated, unGoogled, fast and battery saving ROM from stock for YT3-X50L? I have just hab success and could share instruction as well as flashable zip. I still haven't figured out how to create a new thread. So if someone is interested I would post here.

So.
I have the YT3-850F, but I gather that the models are somewhat similar. I'm interested in creating a ROM for my model, but I would definitely be happy to do it in such a way that I could potentially port it to the YT3-X50L. I've found some good resources regarding my model, so I'm hoping to be able to get that working at some point.

In any case, I would be very interested in you writing down the steps and whatnot, and would be happy to at least attempt doing it myself.

 

[Yamaha169]

So.
I have the YT3-850F, but I gather that the models are somewhat similar. I'm interested in creating a ROM for my model, but I would definitely be happy to do it in such a way that I could potentially port it to the YT3-X50L. I've found some good resources regarding my model, so I'm hoping to be able to get that working at some point.

In any case, I would be very interested in you writing down the steps and whatnot, and would be happy to at least attempt doing it myself.

My two cents


Have this guy adb pull his system.img for building the rom... (Maybe check his build.prop, and his host.xml search for any bad symlinks)

Hi,
is anybody interested in building a debloated, unGoogled, fast and battery saving ROM from stock for YT3-X50L? I have just hab success and could share instruction as well as flashable zip. I still haven't figured out how to create a new thread. So if someone is interested I would post here.

After you established a good ROM

The recovery/boot

Both of you need the fstab file...
(I believe its in the recovery.img or boot.img...
Unpack it...
Re-write the partitions path layout for the device youll be using... (Aka pit mapping)


Ive done this once before...
If someone could share my Yamaha169/sevenmax Recovery??

If you can get me the file... Ill update it...

 

[svenjuga]

After you established a good ROM

The recovery/boot

Both of you need the fstab file...
(I believe its in the recovery.img or boot.img...
Unpack it...
Re-write the partitions path layout for the device youll be using... (Aka pit mapping)

Never read about that. What is it good for?

Ive done this once before...
If someone could share my Yamaha169/sevenmax Recovery??

If you can get me the file... Ill update it...

I posted the twrp recovery (sevenmax) in this thread:

[GUIDE] Yoga Tab 3 10.1 YT3-X50F - TWRP and ROOT

Hello there! Because there is not much about this procedure for this version I leave a tutorial that has worked very well for me. Warning: Backup all your data first, because when unlocking the bootloader of the device, it will reset to factory...

forum.xda-developers.com

 

[svenjuga]

So.
I have the YT3-850F, but I gather that the models are somewhat similar. I'm interested in creating a ROM for my model, but I would definitely be happy to do it in such a way that I could potentially port it to the YT3-X50L. I've found some good resources regarding my model, so I'm hoping to be able to get that working at some point.

In any case, I would be very interested in you writing down the steps and whatnot, and would be happy to at least attempt doing it myself.

Requirements
bootloader unlocked and TWRP recovery installed. You may want to follow these instructions: https://forum.xda-developers.com/t/guide-yoga-tab-3-10-1-yt3-x50f-twrp-and-root.3695297/

You can skip the rooting part (SuperSU/Magisk). But it will be helpful if you want to do further system changes later on.

Instructions (here's what I did)
• download and unpack latest original OTA update
• load with android kitchen (ClassyKitchen free works best for me https://forum.xda-developers.com/t/...kitchen-for-android-roms-development.3862584/ I got bad results with Assayed Kitchen)
• deodex with kitchen
• remove empty folders and pre-install apps from system folder
• debloat with kitchen
• debloat manually by deleting from system\app and \priv-app folder all google and lenovo stuff
(at this point, much more can be removed if you know what you're doing. Or you just try and test, like I did. In order to keep as many functions as possible, I recommend deleting only google and lenevo related folders and doing the further cleanup later on, depending on your personal needs. Therefor device must be rooted.)
• build META-INF installer with kitchen
• build zip-ROM (for recovery) with kitchen oder just repack system folder, META-INF folder and boot.img to zip-file.
• delete dalvik, system, cache, data (with TWRP)
• flash your zip-ROM

Optional (before building zip-ROM)
• replace trebuchet launcher with Trebuchet 8.1.0.22 lineage port (or any other launcher that works with tablet mode) https://forum.xda-developers.com/t/...het-laucher-for-any-rom-ver-8-1-0-22.3667436/
• replace LatinImeGoogle with SimpleKeyboard (from F-Droid)
• replace Calendar with SimpleCalendarPro (F-Droid)
• replace calculator with calculator (F-Droid)
• add camera folder within system\priv-app with camera.apk (lineageOS13)
• replace GooglePackageInstaller with PackageInstaller (lineageOS13)
• delete boot sound from system\media (you can delete ringtones, alarms, bootanimations etc. also)
• add F-Droid to system\priv-app\f-droid (recommended)

Root
to root the device just install Magisk:
• flash magisk.zip with TWRP
• reboot and install magisk.apk

For privacy reasons you may want to
• install AFWall+ (F-Droid, Root needed)
• install Privacy Browser (F-Droid)

Do further cleanup with your preferred system-apps removing app (I used Link2SD and System_App_Safe_Remover_Pro, device has to be rooted). Don't forget to make a TWRP backup before deleting system apps.

My result is a fast, stable and secure OS with low battery needs (~ 0.3%/h deep sleep mode and about 2-3%/h reading an eBook). You can check battery consumption with BBS (Better Battery Stats app) or reduce energy consumtion even more with SmartPack-Kernel Manager).

Have fun experimenting or just check out my ROM (YT3-X50L only)

 

[Yamaha169]

Requirements
bootloader unlocked and TWRP recovery installed. You may want to follow these instructions: https://forum.xda-developers.com/t/guide-yoga-tab-3-10-1-yt3-x50f-twrp-and-root.3695297/

You can skip the rooting part (SuperSU/Magisk). But it will be helpful if you want to do further system changes later on.

Instructions (here's what I did)
• download and unpack latest original OTA update
• load with android kitchen (ClassyKitchen free works best for me https://forum.xda-developers.com/t/...kitchen-for-android-roms-development.3862584/ I got bad results with Assayed Kitchen)
• deodex with kitchen
• remove empty folders and pre-install apps from system folder
• debloat with kitchen
• debloat manually by deleting from system\app and \priv-app folder all google and lenovo stuff
(at this point, much more can be removed if you know what you're doing. Or you just try and test, like I did. In order to keep as many functions as possible, I recommend deleting only google and lenevo related folders and doing the further cleanup later on, depending on your personal needs. Therefor device must be rooted.)
• build META-INF installer with kitchen
• build zip-ROM (for recovery) with kitchen oder just repack system folder, META-INF folder and boot.img to zip-file.
• delete dalvik, system, cache, data (with TWRP)
• flash your zip-ROM

Optional (before building zip-ROM)
• replace trebuchet launcher with Trebuchet 8.1.0.22 lineage port (or any other launcher that works with tablet mode) https://forum.xda-developers.com/t/...het-laucher-for-any-rom-ver-8-1-0-22.3667436/
• replace LatinImeGoogle with SimpleKeyboard (from F-Droid)
• replace Calendar with SimpleCalendarPro (F-Droid)
• replace calculator with calculator (F-Droid)
• add camera folder within system\priv-app with camera.apk (lineageOS13)
• replace GooglePackageInstaller with PackageInstaller (lineageOS13)
• delete boot sound from system\media (you can delete ringtones, alarms, bootanimations etc. also)
• add F-Droid to system\priv-app\f-droid (recommended)

Root
to root the device just install Magisk:
• flash magisk.zip with TWRP
• reboot and install magisk.apk

For privacy reasons you may want to
• install AFWall+ (F-Droid, Root needed)
• install Privacy Browser (F-Droid)

Do further cleanup with your preferred system-apps removing app (I used Link2SD and System_App_Safe_Remover_Pro, device has to be rooted). Don't forget to make a TWRP backup before deleting system apps.

My result is a fast, stable and secure OS with low battery needs (~ 0.3%/h deep sleep mode and about 2-3%/h reading an eBook). You can check battery consumption with BBS (Better Battery Stats app) or reduce energy consumtion even more with SmartPack-Kernel Manager).

Have fun experimenting or just check out my ROM (YT3-X50L only)

Hes got a great go on a rom,
im not familiar with the image kitchen hes using though, and each image kitchen has different tools/scripts/signing abilities.

The fstab file was in the split ramdisk of the recovery? If memory is correct?
(Correct me if im wrong)

But editing this file internally (you'll notice)
The 850m and the 850F and 850L will probably all different.
(To pull the radio and all partitions correctly these need to be aimed at the correct filepath.

(Its Almost like trying to pull a copy from your computer with the incorrect filepath) if you get my drift? But this is your recovery ....


I dont remember why i didnt use the official twrp recovery, i would think it would suit all models by now ?

I think IT bootlooped me And getting ROW software back then was scarce .
So i decompiled it Manually.

any questions ask?

 

[koliberk]

Hi, what will happen if I flash your ROM on my X50F ?
The only difference is you have sim1 and my if only WiFi

Have fun experimenting or just check out my ROM (YT3-X50L only)

 

[svenjuga]

Hi, what will happen if I flash your ROM on my X50F ?
The only difference is you have sim1 and my if only WiFi

Hi, I don't know for sure but I think it will work. I recommend to backup your current OS with TWRP. And then just flash my ROM and see if it works. If not you still can restore your TWRP backup. Good luck!

 

[koliberk]

Now I have OTA updated to YT3-X50F_S000134_220825_ROW with SuperSu and TWRP.
Funny enough, I have some services regarding SMS, phone and other regarding communication
Will try to do backup and then will try to your ROM.

Hi, I don't know for sure but I think it will work. I recommend to backup your current OS with TWRP. And then just flash my ROM and see if it works. If not you still can restore your TWRP backup. Good luck!