yashsingh1/xdaforums huggingface dataset:
[Upgrading, Modifying and Unlocking] janmaripanol:
Sorry for that.

After I flash the recover, its just stuck at something like this

"usb transferring

usb transmission ok"

Then when I reboot (hard reboot), the bootloop started.

Is it possible to fix that? Thanks

---------- Post added at 09:22 AM ---------- Previous post was at 09:19 AM ----------

Sorry for that. After I flash the recovery, its just stuck at something like this:

"usb transferring

usb transmission ok"

Then after I hard restart, the bootloop started (keeps restarting to lenovo screen)

Is it posssible to fix that? Thanks.
[Upgrading, Modifying and Unlocking] 0xAF:
Did you managed to start the recovery at all?

To fix the problem, you need to find the original firmware and flash the original recovery and probably the original boot image.
[Upgrading, Modifying and Unlocking] janmaripanol:
No, where to find the original image?

If ever I original firmware, to flash the original firmware, should I just type "fastboot flash recovery firmware.img"?

---------- Post added at 09:45 AM ---------- Previous post was at 09:44 AM ----------

No, where to find the original boot image?

and if ever I original firmware, to flash the original firmware, should I just type "fastboot flash recovery firmware.img"?
[Upgrading, Modifying and Unlocking] 0xAF:
I don't know where to find the original firmware. It's hard to find it. Search with google. You can ask lenovo support.

When you find it, you will need SPFT to flash it probably.
[Upgrading, Modifying and Unlocking] janmaripanol:
I've got the link of original firmware, but dont know what do you mean boot image. Thank you for the helping me, Ill try to look at Google about using SP Flash Tool.
[Upgrading, Modifying and Unlocking] 0xAF:
In the OFW (Original FW), you will have many partitions, like:

system

data

recovery

boot

etc...

try to restore the recovery and boot partitions.

or flash the whole OFW if it's easier to you.
[Upgrading, Modifying and Unlocking] janmaripanol:
I dont really have idea how to do that. Sorry
[Upgrading, Modifying and Unlocking] 0xAF:
You have two options.

1. Read a lot about all these stuff. Understand how flashing works and what partitions are. Then fix your device.

2. Send the device back to where you bough it. Or send it to a local service. Ask them to fix it for you. It will cost you some money, since you unlocked the bootloader and your warranty is void now.

And for the future, when someone tells you read the instructions, please read them carefully. Especially when the instructions start with the line "Read the instructions at least once, before you proceed."

And when someone tells you "do not flash", better listen...

Sorry for telling you that. I do not mean to hurt you, it's just a friendly advice.

There is nothing more I can do for you, you need to learn more about SPFT and flashing... then flash your OFW. It's not that hard, but I cannot explain it in few lines here.
[Upgrading, Modifying and Unlocking] janmaripanol:
Thank you, I appreciate your help.
[Upgrading, Modifying and Unlocking] janmaripanol:
I unbricked the Tab using SP Flash Tool. ?
[Upgrading, Modifying and Unlocking] pipipde:
Hey,

thanks for all the help here. I successfully flashed the provided OFW (after I bricked my tablet) and rooted my device. Unfortunately, the provided OFW is not the newest and since OTA update does not work I started looking for the newest firmware. I came across the following post, did anyone try this?

--> h**p://lenovo-forums.ru/files/file/1829-tab3-a7-30x-tb3-730x_s038_170627_row/
[Upgrading, Modifying and Unlocking] 0xAF:
Good to know.
[Upgrading, Modifying and Unlocking] 0xAF:
If you try it, please tell us.
[Upgrading, Modifying and Unlocking] janmaripanol:
What is TWRP porting?

How can I determine if what TWRP is available to port for my android device? Thanks
[Upgrading, Modifying and Unlocking] 0xAF:
Porting means to take TWRP recovery.img from another device with the same or similar chipset and adopt it to your device.

You never said what happened when you tried to boot the recovery image from this thread? Did it boot correctly?
[Upgrading, Modifying and Unlocking] janmaripanol:
Thanks for the info, I am planning to port TWRP recovery for my Tab.

When I tried to boot the recovery, nothing happened, the tab reboot normally.
[Upgrading, Modifying and Unlocking] pipipde:
I couldn't resist anymore :) I downloaded the above mentioned OFW tb3-730x_s038_170627_row and flashed it:

- flashed OFW with Flash Tool (system and boot)

- unlocked bootloader again

- flashed SuperSu (adb sideload through TWRP)

So my TB3-730X has the newest firmware and is rooted now. Everything worked perfectly...
[Upgrading, Modifying and Unlocking] 0xAF:
Thanks for the info. I'll update the OP.
[Upgrading, Modifying and Unlocking] 0xAF:
I have ported TWRP 3.1.1.

For those who want to try it, first try with the "fastboot boot" method, before flashing it.

Link: https://goo.gl/A38X67

I will update the OP, if there are some test with no problems.

WARNING: Remember to NOT allow TWRP to modify the system partition, or you will brick your device.
[Upgrading, Modifying and Unlocking] Elson123:
Hey guys, how can i flash twrp recovery on lenovo TB3-710I (NOT ROOTED). There is no page regarding it. Hope you guys can help.
[Upgrading, Modifying and Unlocking] Tzul:
[MENTION=8594633]Elson123[/MENTION] You're in the wrong thread. The TB3-710I is from the "Tab 3 7 Essential" line, try this thread here.

I built TWRP for the TB3-710I last year, and I described the installation process here.
[Upgrading, Modifying and Unlocking] khalik786:
Bricked

my device is LENOVO TAB3 730X MT8735, and now bricked ,please give me stock rom for MT8735
[Upgrading, Modifying and Unlocking] 0xAF:
Your device is bricked most likely because you did not follow the instructions.

If you have read them, you will know where the Stock ROM is and how to prevent your device from bricking.

See the OP and read it!
[Upgrading, Modifying and Unlocking] khalik786:
Bricked

Sir my device chipset MT8735, not found till now ont his thread and in Google, please give a woking link
[Upgrading, Modifying and Unlocking] 0xAF:
MT6735 and MT8735 are the same.

Our device TB3-730X is reported to be with MT8735 chipset, but the software reports MT6735.

It seems MT8735 is the same as MT6735, but made for tablets. I guess MT6735 is made for phones.

And some tools report MT6735, other tools report MT8735.

Whatever differences have these MT6735 and MT8735, it seems that the kernel and software is compatible with both SoC.

If your device is TB3-730X, you are in the right thread. Checkout the OP and find the Stock ROM.
[Upgrading, Modifying and Unlocking] Zarosky:
any twrp for TB3 730F??? work TWRP for TB3 830F on TB3 730F???
[Upgrading, Modifying and Unlocking] 0xAF:
I have no idea.

But don't use this recovery on the 'F' model, it will brick it.
[Upgrading, Modifying and Unlocking] LynxU:
Hi guys

I edit build.prop file with bulid prop editor but unfortunately I face with bootloop.

I have the original build.prop but because we can't mont system in TWRP , I cant replace it

Can someone build a flashable build.prop for me?

Please help me as soon as possible , I need it ☹️
[Upgrading, Modifying and Unlocking] 0xAF:
Go to mount options in TWRP and check(or uncheck, i cant remember) the checkbox to allow TWRP to mount system as R/W.

I've been using this to restore my system and there is no problem.

The only problem is if you allow TWRP to touch the system partition on it's first run.
[Upgrading, Modifying and Unlocking] DarkWolf:
new issue is coming out,twrp showing all storages 0 MB

and there is some type of bootloop of twrp
[Upgrading, Modifying and Unlocking] 0xAF:
Strange.

TWRP does not depend on your /system/build.prop... it has it's own.

If you have problems with TWRP, then the problem should be somewhere else.

Perhaps hardware problem?

Think again what have you done so far and what could be the root of the problem.
[Upgrading, Modifying and Unlocking] walid77dz:
Hi, i have "Lenovo vibe K10", it's also "MT6735", please any help to create a twrp for it. i can upload my stock boot and recovery images. Thanks in advance
[Upgrading, Modifying and Unlocking] DarkWolf:
So far,,

About 6 months ago, I installed twrp and was working,by mistake I broke screen but still working well, wiped entire system including bootloader, than tab was useless since than,

I dissembled each part of tab and reassembled too,

I flashed OFW and tab is again working great but whenever I try to install twrp,first it runs open recovery script and shows mount error so there is mount issue,storage is shown null(0mb),and device gets bootloop and bricked, so I have to again flash OFW to make tab alive,

Dont know where problem is occurring

May be because I have Indian verient and firmware is for another country verient

---------- Post added at 04:58 AM ---------- Previous post was at 04:41 AM ----------

Yesterday, when for first time I installed twrp, it asked for some decryption password

Dont know what is that! Is that issue because of encrypted system or something?
[Upgrading, Modifying and Unlocking] 0xAF:
Yeah, you probably have encrypted FS and that's why TWRP cannot mount it and does not see it correctly.

Another possibility is that you have flashed different OFW with different partitions, but I doubt it...

What OFW have you been flashing?
[Upgrading, Modifying and Unlocking] DarkWolf:
https://ibb.co/kpKzD6

Check out that SS Bro
[Upgrading, Modifying and Unlocking] MyName1s:
Hi,

i tried to flash twrp on my brand new 730x and now my tablet is bricked. I loaded TWRP first, it was working and then without reading the forum posts i flashed it. i don't know what happened because when i loaded TWRP it appear the pattern screen and i draw a pattern and after i said SKIP to the rights to modify the system partition., but when i flashed it, after i draw the pattern it appeared again, did it and it appeared again , then i hit cancel but somehow the partition was modified so when i wanted to reboot the no os screen appeared and after restart lenovo logo and that was it. tried to flash with SPFT theTB3 ROW russian version posted here but i got 0x7D4. so i deinstalled the drivers and reinstalled all and tried again. same thing, but i noticed that the windows is doing continuous conecting/disconectig device sound when i conect the tablet and SPFT is on, so i wanted to try without battery. tried, opened SPFT, same thing, same repetitious sounds,same error. i tried again with DA_SWSEC_CRYPTO20.bin it went till 17% when the connected/disconnected sound started and blocked the SPFT app and soon windows 10 gave not responding error, and this bricked my phone and now is not even starting. i can see only charghing red light and this is it. tried adb, not working anymore because of device (null) not found (debug option disable i think).

Is there something else i can do? Can i save my tablet? PLEASE! i used it only yesterday and today because i needed it tomorrow so i rushed the things up and didn't red the all the posts so i havn't done any backup or something so i messed it up :((

Can someone please help me? Is there anything that i can try and revive my tablet? Some help will be much appreciated!
[Upgrading, Modifying and Unlocking] DarkWolf:
https://cloud.mail.ru/public/4bXW/WHjeWWTPG

1.Download This

2.Extract to your Pc

3.Go To Extracted and Find SP flash tool folder

4.Run SP flash tool

5.Press ctrl+alt+S to activate authentication mode

6.Load MTK all in one Download agent

7.Load scatter file

8.Load Authentication File

9.change option from Download only to Format All+Download

10.Press on Download

11.Connect tab

12.if error comes, just click OK and again click on download

..this works great for me

hit Like if I helped

---------- Post added at 06:25 AM ---------- Previous post was at 06:21 AM ----------

https://cloud.mail.ru/public/4bXW/WHjeWWTPG

I downloaded from here,

I have Indian Verient Tab and OFW is for Russian Verient that I flashed

May be This is Issue
[Upgrading, Modifying and Unlocking] 0xAF:
Thanks for the info, I've updated the OP, to link to your post.
[Upgrading, Modifying and Unlocking] DarkWolf:
yes, this would be helpful for many users:D
[Upgrading, Modifying and Unlocking] MyName1s:
apparently, with the brick, a connection error came because my tablet was keeping connecting and disconnecting from the pc so the SPFT couldn't do anything, all i got from the tool was a blank window and continuous connected/disconnected sounds from the os (windows 10). Googled after it and took all usb cables i could find in my house and tried and eventualy (6th cable) it started downloading!!!

YOU just unbricked my tablet! THANK YOU!

---------- Post added at 04:43 PM ---------- Previous post was at 04:40 PM ----------

So now, i have to start all over again with the TWRP but first of all, boot in it and do a backup and after this, flash it with adb!!! It have 10% battery right now, so i will do it later and hopefully i will succeed!

THANK YOU VERY MUCH for your help!
[Upgrading, Modifying and Unlocking] DarkWolf:
You Are Most Welcome

---------- Post added at 05:01 PM ---------- Previous post was at 05:00 PM ----------

https://xdaforums.com/general/rooting-roms/mt6735-stock-firmware-unbrick-lenovo-t3695575

I just created a Thread regarding firmware flashing,
[Upgrading, Modifying and Unlocking] MyName1s:
i saw on the lenovo support page at drivers and software a file Open Source Code - Lenovo TAB3 7(TB3-730X/M) and i was wondering if this might be useful for somebody or something, because i am quite a noob regarding this things. i will post a screenshot with the contents of the archive.

[IMG="lenovo"]https://imgur.com/a/DfxCm[/IMG]

imgur.com/a/DfxCm

---------- Post added at 05:18 PM ---------- Previous post was at 05:08 PM ----------

the archive is 662MB, it can contain the OFW?

here is the direct download link: download.lenovo.com/consumer/open_source_code/lenovo_tab3_7_osc_201606.tar.bz2
[Upgrading, Modifying and Unlocking] MyName1s:
It looks like it have no IMEI and i have the "NVRAM WARNING Err=0x10" wifi error. i will try now to fix the imei with Maui and after TWRP i wil flash "NVRAM_WIFI-ERROR-FIX_BY_KM.zip" and hopefully it will fix it! :)
[Upgrading, Modifying and Unlocking] MyName1s:
can you plese tell me what nvram .db file you used?? Thank you.

Nevermind. i found one in the TB3-730X_S038_170627_ROW posted by nirav1996
[Upgrading, Modifying and Unlocking] Tzul:
[MENTION=7313975]nirav1996[/MENTION]'s description reads "9. change option from Download only to Format All+Firmware". There is no such flash mode. There's "Firmware Upgrade", and "Format All + Download".

I've said it before on page 20 and I'll say it again:

DO NOT USE "Format All + Download"! It will cause problems, because it really formats everything, including the hidden partition that contains the serial number, and the NVRAM where the unique IMEI and MAC addresses of your device are stored. Yes, you can rebuild the NVRAM if necessary (and if you have the DB file), or you can restore a backup (if you were smart enough to make one). But it's easier if you just avoid erasing it in the first place. Use "Firmware Upgrade" (requires flashing of all listed partitions) or "Download Only". But not "Format All + Download"!
[Upgrading, Modifying and Unlocking] DarkWolf:
there are three options, on of them is format+download

Download only or firmware upgrade not worked for me, even tried a lot of times with different versions of flash tool,

And it worked on format+download option so I posted it, yes may be nvram issue is caused because that,
[Upgrading, Modifying and Unlocking] tetris@:
Hello [MENTION=7313975]nirav1996[/MENTION]

Thanks for instructions

Actually format+download really worked for me, I formatted system bymistake and tab became dead, but yesterday ddownloaded the stock rom and flashed as per your guide, thanks
[Upgrading, Modifying and Unlocking] 0xAF:
This is Linux kernel source. Don't bother downloading, it's not the OFW. From this source the kernel is compiled, but we don't need to recompile the kernel for now.
[Upgrading, Modifying and Unlocking] MyName1s:
tried to flash the TWRP and i don't know what happened because when i booted in twrp it asked if leaving read only, but when i flashed the TWRP it didn't asked and after reboot it went in continuous reboot. i did a backup, but i lost it and the SPFT doesen't seem to connect to my phone. i used the the system recovery image posted here, and it looks like TWRP is successfully doing it but still is going in continuous twrp reboot.

should i uninstall all the drivers and reinstall them again and try SPFT? should i enter in bootload and do an oem unlock and a twrp boot and try a recovery ? what do you suggest?

p.s. the pc keeps doing connected\disconnected sounds when i connect the tablet and i think this is why SPFT can't connect to the tablet. i used same cable that did the trick before but it's not working anymore :(
[Upgrading, Modifying and Unlocking] MyName1s:
tried wiping data, twrp boot and system restore, still continuous reboot :(
[Upgrading, Modifying and Unlocking] 0xAF:
Hm, that looks strange on the photo. It seems you have some problems with partitions...

I would suggest to reflash wit SPFT, since I cannot investigate your device.

When you connect the tablet to the PC, it is normal to connect and disconnect all the time.

Try different cables and/or usb ports. Should work at some time.

See this thread too: https://xdaforums.com/general/rooting-roms/mt6735-stock-firmware-unbrick-lenovo-t3695575
[Upgrading, Modifying and Unlocking] MyName1s:
Yeah, i don't know what happened but after flashing the TWRP it just reboot with this screen and it's looping. First time that trick from the thread did worked, but for some reason is not working any more. i will deinstall all the drivers and start from scratch with a SPFT reflash.

Thank you for your reply!
[Upgrading, Modifying and Unlocking] honzazkrumlova:
Hi,

trying DarkWolfs howto to just flash newer fw, my device is not bricked (yet).

But I have one (hope not so much) stupid question> How to achive, the device stay in "preloader USB connectable state".

It took me some time to manage drivers install to my Win7 (by the same reason below), but preloader USB VCOM driver placed OK.

The problem:

When I power off Tab3 and connect USB, Windows detect that port (with proper drivers), but device imediatelly (2s) start (boot or wharever its called) that screen with Charging/date/time message and preloader port disconnect, then MTP connect.

How to do it, to freeze Tab3 in that preloader VCOM mode (and not starting date time screen)?

I have read some inspiration in other threads here, with other ROMS, but SPFT and imagine, after Tab3 boots (triggered by USB plug in), maybe SPFT "somehow handle it" to free Tab3 in that state. So, tried to press Download, THEN connect Tab3.

Red progress bar starts (reporting Download DA100%), but after 1-2s process interupted (when tab3 start to boot regularly and preloader port disconnect), with BROM ERROR : S_BROM_DOWNLOAD_DA_FAIL (2004)

I have googled, searched this forum, watched 1+ hour newbie tutorial about SPFT, no luck. Tried other USB (Lenovo original sold w tablet), another USB, other PC, another PC, clean fresh installed PC (Win7 32bit).... but no luck.

Am I missing some tiny detail ? Or?

And one more question. I have read warning not to format device, because possibility to loose IMEI-MAC partition infos. I have booted TWRP 3.0.2 and just in case, backed up every partition. The question is: if I bricked it, will I be able to restore these data with TWRP. Just ensuring myself, as responsible newbie, backing up, but also need to be sure, ll be able to restore such backup...
[Upgrading, Modifying and Unlocking] 0xAF:
I can't remember exactly how SPFT worked... since I never got it working with my laptop and the cables I have... besides I'm on Linux.

But IIRC, you need to turn off the device and then start SPFT on PC and then connect the cable.

If the drivers are ok and the cable is good and the usb port is ok, it should connect...

As for TWRP, you should be able to restore your backups.
[Upgrading, Modifying and Unlocking] honzazkrumlova:
I did it, it connect. But quickly disconnect. :crying: Will search and let anybody know if found something

Thanks
[Upgrading, Modifying and Unlocking] honzazkrumlova:
Well, success. I searched more general keywords and somewhere (china-devices com) found mention about keep pressed Vol- before plugging USB. They called it META mode.

After that, device manager detected 4 new HW, some I cannot set up (driver) corretly, but one of them, MTK preloader DA driver worked for me.

Then, powered off again, prepare all in SPFT based on DarkWolfs info, pressed Download, keep pressed Vol-, connect USB and ... voila.

I also have to change download only to Firmware upgrade (because SPFT report PMT changed), I guess because my Tab3 has O2 branded FW with alternative partitioning.
[Upgrading, Modifying and Unlocking] 0xAF:
Good to know, thanks for the update.
[Upgrading, Modifying and Unlocking] android 14:
hi guys...i really want to root my device but is it sure i will lose data or there is just a chance?
[Upgrading, Modifying and Unlocking] 0xAF:
Unlocking the bootloader will erase everything on your device. So, it's for sure!
[Upgrading, Modifying and Unlocking] wa.v:
'Hi guys, i have problem after flash Magisk via TWRP. System boot correctly and i have root permissions, but after boot into recovery. Via adb or via pressing power/vol-, then appear classic simple android recovery. This recovery has 10% functionality than TWRP. It can´t realize flashing and recovery main system. I have for testing cheap device Lenovo Tab 3-7 and ompiled file for flashing v. 3.0.2 and 3.1.1.

Could you help me?

After reflashing TWRP, then start normaly TWRP, but after reboot to recovery i have only standard android recovery - not TWRP.

Thx in adv.

Vlada
[Upgrading, Modifying and Unlocking] 0xAF:
Read the first post correctly.

You have booted TWRP, not flashed it.

When you boot TWRP it will be there until you reboot the device.

If you want TWRP permanently, then you need to flash it.

Read the first post!
[Upgrading, Modifying and Unlocking] wa.v:
ou ou ou thanks i didn't read your text to the end. :eek:
[Upgrading, Modifying and Unlocking] wa.v:
I flashed via TWRP xposed-v89-sdk23-arm64 today, works ok. But on the system partition is small space for it. Need to remove some system app. I removed big Lenovo tutorial app for example.
[Upgrading, Modifying and Unlocking] KhaledOnLine:
it's very hard steps

is there another explanation simplified with pictures or video ?
[Upgrading, Modifying and Unlocking] 0xAF:
Actually it is very simple, if you have flashed rom or recovery on any android before.

If you find these steps hard, or if you do not understand fully what you're doing in these steps, then my advice is to find someone who can help you with this. Do not try it yourself, unless you have few days for reading on how to fix your device, and the intuition to find the information yourself. If you do not understand what is going on, then you will probably brick your device.

If you are going to try it anyway, then my suggestion is the follow the steps very carefully.
[Upgrading, Modifying and Unlocking] KhaledOnLine:
can you please make a video tutorial with the steps ?

Or with pictures like this article : https://androidmtk.com/root-samsung-galaxy-grand-2-lte-sm-g7105
[Upgrading, Modifying and Unlocking] sun_dream:
730f work(730x twrp)
[Upgrading, Modifying and Unlocking] mvrk69:
Does anyone knows if this works for Tab3 10 Business (TB3-X70L)
[Upgrading, Modifying and Unlocking] 0xAF:
No. Different chipset. Won't work!
[Upgrading, Modifying and Unlocking] sany:
Help please

How to go about this step please...once unlocked, will there be an option to select this file?

thanks

S