Ok,i found a Way back to Stock for Mediapad X2 703L
i test this and works fine.
If your Mediapad X2 Rooted and have install Custom Recovery and will go back to Stock.(Also your Pad is Rooted,Unlocked Bootloader and Twrp installed)
Backup your Data Before Flash this Firmeware!!!
Download the Huawei Extractor App unpack and install it (Download from Attachment).
Download the Huawei Firmware from here and unpack it.
Installing Mediapad X2 Driver (Hi Suite) and must have fastboot ADB installed.
Copy the Update.app in dload Folder in Internal or external Storage.(For later)
Open the Huawei Extractor and extract Recovery and or System and copy Recovery and or System in your ABB Folder.
Reboot your Mediapad in Fastboot/Bootloader Power Off - Connect to Pc and Press and hold Power and Volume Down to boot in Fastboot Mode or CMD Command adb reboot bootloader.(USB Debugging must be enabled)
Open CMD and Navigate to your ADB Folder (cd C:\ADB)
For Recovery to Update for Local Update
fastboot flash recovery RECOVERY.img
For System (If you have delete Apps from System and not wipe your Data))
fastboot flash System SYSTEM.img
wait to finish this Procedur.
The X2 Reboot and go in Setting to Update Program-Menu-Local Update and Flash your Original Firmware for GEM 703L
Wait to Reboot and you have Original Stockrom/Firmware without Root and Twrp.This wipe your Data,please Backup your Data before you make this Procedur!
I am not responsible for damage to the unit or other!!!
Sorry for my bad English.
thank you. now my phone gets bootloop.I will try this method !
I can't flash system.img.Error messaging : can't load system.img
Bootloader unlocked
I have 702L, will the 703L firmware work for my Mediapad? I couldn't find the specific firmware for it on Huawei's web-site.
It worked! Oh my god, thank you! I was close to tears, being up all night trying to fix my failed root attempt. Time to start again from scratch hahahaha!
what if in fastboot when flashing it says : " write : command not allowed " ...
How do I get USB debugging if I have no ROM installed and TWRP won't flash D: (only thing I can get is erecovery)
EDIT: Well TWRP wouldn't flash because I had to reunlock my bootloader, yes....reunlock.
letschky said:
For System (If you have delete Apps from System and not wipe your Data))
fastboot flash System SYSTEM.img
Click to expand...
Click to collapse
Code:
platform-tools>fastboot flash recovery RECOVERY.img
target reported max download size of 471859200 bytes
sending 'recovery' (32354 KB)...
OKAY [ 1.010s]
writing 'recovery'...
OKAY [ 1.050s]
finished. total time: 2.060s
platform-tools>fastboot flash System SYSTEM.img
[COLOR="Red"]error: cannot load 'SYSTEM.img'[/COLOR]
xdxdxd33 said:
Code:
platform-tools>fastboot flash recovery RECOVERY.img
target reported max download size of 471859200 bytes
sending 'recovery' (32354 KB)...
OKAY [ 1.010s]
writing 'recovery'...
OKAY [ 1.050s]
finished. total time: 2.060s
platform-tools>fastboot flash System SYSTEM.img
[COLOR="Red"]error: cannot load 'SYSTEM.img'[/COLOR]
Click to expand...
Click to collapse
Extract the SYSTEM.img again,i had the same Problem,then it worked
letschky said:
Extract the SYSTEM.img again,i had the same Problem,then it worked
Click to expand...
Click to collapse
Nope still does not work, I tried with GEM-703L_EMUI3.0.5_Android5.0_V100R001C233B015 and GEM-703L_EMUI3.1_Android5.1_V100R001C233B112
What is the sha1 or md5 hash for your SYSTEM.img?
My fastboot / platform-tools were outdated, so I downloaded newer ones that fixed the issue.
I'm pulling out my hair trying to get this to work.
When I try to run the local update using the UPDATE.APP file, I get an incompatible error.... I definitely downloaded the 703L stock ROM FOR MY 703L...... so wtf is the problem?
I've followed your instructions and the local update always fails with this error message i.imgur.com/Gb7P9Ks.jpg
So what could I be doing wrong...?
I've tried all these ROMs
Code:
GEM-703L_EMUI3.0.5_Android5.0_V100R001C233B015
GEM-703L_EMUI3.1_Android5.1_V100R001C233B112
GEM-703L_EMUI3.1_Android5.1_V100
GEM-703LT_EMUI3.1_Android5.1_V10
Lenovo Tab 3 8/TB3-850F -
Android 6.0 Stock Firmware Images
DISCLAIMER: As always, flashing your device - with either stock or custom firmware - involves an inherent risk of bricking or otherwise rendering your device inoperable. I am not responsible for any good or bad resulting from your use of these firmware images or this thread.
DEVICE SPECIFICATIONS:
Model: Lenovo Tab 3 8"(TB3-850F)
Android Version: 6.0 Marshmallow
Kernel Version: 3.18.19
Board Platform: MediaTek MT6735m (1.0 GHz)
Build No: TB3-850F_S100031_171010_ROW
Software Version: TB3-850F_160412
SDK Version: 23
Build ID: MRA58K
Android Security Patch Level: 9/05/2017
Build Date: 10/10/2017
NOTE:
First & foremost, these partition images will not restore your device completely back to factory/stock condition. They will restore your Android OS, boot logo, boot image & recovery to stock condition. Other vital partitions of your device, such as /lk (the primary bootloader) are not restored by flashing these images. To revert to an unmodified factory state, you will need to visit @r&xp's thread mentioned below and flash your device with stock firmware using the SP Flash Tool, which will also re-lock your bootloader.
This firmware thread is not intended as a tutorial or guide for flashing or restoring your Lenovo Tab 3 back to stock condition. Rather, this is intended as a resource for stock images, device drivers, etc. However, some rudimentary instructions are provided, which will enable you to install these images and restore your device back to mostly stock condition. NOTE: IF YOUR DEVICE IS BRICKED (UNABLE TO BOOT INTO EITHER RECOVERY OR FASTBOOT MODE), THESE FIRMWARE IMAGES WILL BE OF NO BENEFIT. INSTEAD, PLEASE VISIT THE FOLLOWING THREAD BY XDA MEMBER @r&xp , WHICH WILL GIVE YOU THE NECESSARY FILES AND PRECISE INSTRUCTIONS FOR UNBRICKING & RESTORING YOUR DEVICE. https://forum.xda-developers.com/android/help/lenovo-tab-3-8-tb3-850f-unbrick-root-t3598727
There are any number of available procedures to flash these stock partition images to your device. The simplest option is to use a custom recovery like TWRP to flash them. Store these images to your external micro SD (or internal storage if you do not intend to wipe internal storage or format /userdata). In TWRP's main menu, select "WIPE", "ADVANCED WIPE", and select Dalvik Cache, Cache, System, & Data. (For a clean install, it is recommended to format Data as well, by selecting "WIPE", then "Format Data.") Reboot Recovery (often necessary for proper mounting of the data partition). Now, select "INSTALL", then select "INSTALL IMAGE" in the bottom right of the menu, navigate to the storage location of the firmware images, and flash them in any order you choose. If you do not have TWRP installed on your device, XDA Senior Member @Hemphiz has a simple & comprehensive thread here: https://forum.xda-developers.com/android/general/guide-lenovo-tab3-8-tb3-850f-t3559786/page1. In any event, whichever option you choose, please do your homework and research the threads here on XDA relating to your choice. These images may also be installed via fastboot mode. You will need to install Minimal ADB & Fastboot (v1.4 or later) on your PC, ensure the proper Lenovo device drivers & ADB drivers are installed on your PC, and connect your device to your PC via the stock (or quality equivalent) micro USB to USB data sync cable. Once in fastboot mode, open a command prompt in the adb/fastboot directory, and execute the following command lines:
fastboot devices (if you are properly synced, your device serial # will be shown)
fastboot oem fb_mode_set
fastboot flash logo logo.img
fastboot flash boot boot.img
fastboot flash recovery recovery.img (this will overwrite any custom recovery)
fastboot flash system system.img (fastboot will automatically sparsechunk this image)
fastboot erase userdata
fastboot erase cache
fastboot oem fb_mode_clear
fastboot reboot
STOCK PARTITION IMAGES:
The link below provides the following stock firmware images:
/system.........................Size 3.0 GB
/boot..............................Size 16 MB
/recovery........................Size 16 MB
/logo...............................Size 8 MB
Also included in the link are some helpful files like Minimal ADB & Fastboot v1.4.3, the official Lenovo USB Drivers for the TB3-850F (v1.1.21), a general partition index of the tablet, the ADB driver installer for Windows, and the latest PC version of LenovoSuite Mobile Assistant v1.4.1.14199.
I have made a full & complete partition dump of this device, including sensitive firmware partitions such as /oemkeystore, /nvdata, /seccfg, /lk, etc. In the event any members have corrupted these partitions, just request and I will upload these as well. (/nvdata contains device identifiers such as MAC Address, ESN, etc. The device from which these images were taken has since been hardware damaged & salvaged for parts. Therefore, I have no issue with sharing these images. However, as a disclaimer, you are fully responsible for the manner in which you use device ID partitions. Modifying a device's identifiers delves into matters of legality and ethical guidelines, all for which you are solely responsible.)
CREDITS:
Thanks to XDA Senior Member @Hemphiz for his hard work & development on this device, and his thread on TWRP & rooting. Also, huge thanks to @r&xp for his lifesaving tutorial on recovering this device from a soft or hard brick. His guide has revived many devices from the Android cemetery. You guys visiting either of these threads mentioned, be sure and hit the "THANKS" button for their hard work.
DOWNLOAD LINK:
TB3-850F_S100031_171010_ROW
Stock Firmware Partition Images: https://drive.google.com/folderview?id=1vRLwQ2mCD3CwYQZKGHyykDvBd2yGHisT
Sent from my Lenovo Tab 3 8/TB3-850F using XDA Forums Pro Edition.
Hi:
I have a Tab3 8 TB3-850F which bough in China. It's a 2G+16G version.
I have successfully install TWRP and root.
I'm wondering can I install this ROM to my TAB3?
Thanks!
tsaibru said:
Hi:
I have a Tab3 8 TB3-850F which bough in China. It's a 2G+16G version.
I have successfully install TWRP and root.
I'm wondering can I install this ROM to my TAB3?
Thanks!
Click to expand...
Click to collapse
I don't see why you couldn't. But, to clarify some info, what is your Build No and Software Version? Look under Settings, About Device
Build number:
TB3-850F_S100026_161221_PRC
Software version:
TB3-850F-160425
Thank you very much!
tsaibru said:
Build number:
TB3-850F_S100026_161221_PRC
Software version:
TB3-850F-160425
Thank you very much!
Click to expand...
Click to collapse
Based on your Build & Software Version info, I can see no compatibility issues with this Stock ROM & your device. You seem to simply have a Chinese variant of the TB3-850F that is not available for retail in the United States.
In any event, use TWRP to backup all partitions of your tablet before proceeding henceforth with flashing this ROM. Also, do not flash the stock recovery from my link...keep your TWRP fully intact & accessible in case anything goes south as a result of the flash. Accordingly, you should be able to fully restore your partition backups via TWRP in the event my Stock ROM doesn't boot up. But, like I said, I can see no adverse consequences to flashing it. Should you decide to give it a go, please update us on this thread as to the results.
Thank you...
The reason why I would like to flash this ROM is to get full Google service which Chinese Rom does not offer.
Even though I have root and install Google service on it. Some of apps I downloaded from play just won't install.
So I dowbloaded this ROM and flash system-002.img, it works.
Now I have all Google service I needed, and all apps I download are able to install.
But after I reset the tab I've build number S100026_160923_ROW, software version TB3-850F_160412.
It will try to download the update to 161209 but after reboot it just go in TWRP not doing anything.
I'm very satisfied with this, and I will keep searching and wait for a way for me to update to S100030_161209_ROW.
I do really appreciate your work to help me solve my problem and save this tab from goes to trash can.
tsaibru said:
The reason why I would like to flash this ROM is to get full Google service which Chinese Rom does not offer.
Even though I have root and install Google service on it. Some of apps I downloaded from play just won't install.
So I dowbloaded this ROM and flash system-002.img, it works.
Now I have all Google service I needed, and all apps I download are able to install.
But after I reset the tab I've build number S100026_160923_ROW, software version TB3-850F_160412.
It will try to download the update to 161209 but after reboot it just go in TWRP not doing anything.
I'm very satisfied with this, and I will keep searching and wait for a way for me to update to S100030_161209_ROW.
I do really appreciate your work to help me solve my problem and save this tab from goes to trash can.
Click to expand...
Click to collapse
Trying a system update will not work with a custom recovery installed. In spft you can select only to flash the stock recovery then you should be able to update it, when you have done the system update just flash TWRP again.
@MotoJunkie01 I did send you a PM the other day, maybe like for you it did not send or was it my noobishness? :laugh:
stonedpsycho said:
Trying a system update will not work with a custom recovery installed. In spft you can select only to flash the stock recovery then you should be able to update it, when you have done the system update just flash TWRP again.
@MotoJunkie01 I did send you a PM the other day, maybe like for you it did not send or was it my noobishness? :laugh:
Click to expand...
Click to collapse
Try sending another PM please. I could have deleted your PM by mistake.
boot. logo and recovery.img worked but system.img did not .the system.img downloads with the explorer or e symbol not a disc like the others do.don't know if that has anything to do with it not working? need the system.img to work pls.
chico2016 said:
boot. logo and recovery.img worked but system.img did not .the system.img downloads with the explorer or e symbol not a disc like the others do.don't know if that has anything to do with it not working? need the system.img to work pls.
Click to expand...
Click to collapse
Not sure. The /system image is an unmodified dump taken from a brand new TB3-850F. It works for me and other members. Be sure you are running version 1.4 or later on minimal adb & fastboot. That could be your issue.
MotoJunkie01 said:
Not sure. The /system image is an unmodified dump taken from a brand new TB3-850F. It works for me and other members. Be sure you are running version 1.4 or later on minimal adb & fastboot. That could be your issue.
Click to expand...
Click to collapse
ok will try again thank you.
---------- Post added at 01:19 AM ---------- Previous post was at 01:15 AM ----------
is it possible to use the platform tool ,like it says for the twrp for the system image?
chico2016 said:
ok will try again thank you.
---------- Post added at 01:19 AM ---------- Previous post was at 01:15 AM ----------
is it possible to use the platform tool ,like it says for the twrp for the system image?
Click to expand...
Click to collapse
Sure. Minimal ADB & Fastboot is merely a bare essentials utility in contrast to the Android SDK & other platform tools packages. You may also flash the /system image using TWRP.
MotoJunkie01 said:
Sure. Minimal ADB & Fastboot is merely a bare essentials utility in contrast to the Android SDK & other platform tools packages. You may also flash the /system image using TWRP.
Click to expand...
Click to collapse
target reported max download size of 134217728 bytes.
invalid sparse file format at header magi ? Not enough room.
need help with tb3-850f flashing system.img.
Thanks!!! Saved my soft bricked Tab3 8 850F
chico2016 said:
target reported max download size of 134217728 bytes.
invalid sparse file format at header magi ? Not enough room.
need help with tb3-850f flashing system.img.
Click to expand...
Click to collapse
If you use minimal adb & fastboot v1.4, the /system image will automatically be converted into a series of smaller sparsechunk image files, which will be flashed to your device one at a time until complete.
wow dont know what i am doing wrong.
invalid sparse file format at header Magi
erasing 'system'...
okay[0.032s]
sending sparse 'system' 1/21...(129476kb) okay[14.824s] writing 'system'1/21...
failed(remote: uknown chunck type)
finished. total time: 14.904s
need some help adb fastboot file says 'system.img is to long?
wow dont know what i am doing wrong.
invalid sparse file format at header Magi
erasing 'system'...
okay[0.032s]
sending sparse 'system' 1/21...
failed(remote: uknown chunck type)
finished. total time: 14.904s
need some help adb fastboot file says 'system.img is to long?
chico2016 said:
wow dont know what i am doing wrong.
invalid sparse file format at header Magi
erasing 'system'...
okay[0.032s]
sending sparse 'system' 1/21...
failed(remote: uknown chunck type)
finished. total time: 14.904s
need some help adb fastboot file says 'system.img is to long?
Click to expand...
Click to collapse
What version of Minimal ADB & Fastboot are you using?
i am using the 1.4 version adb fastboot from the same link i got the images on this very helpful post
boot img -logo.img-recovery.img say flash on ,and the tablet marks ok that they have flashed---but no luck with the system.img even though i have re downloaded twice same thing .do you have a link that would go through a step by step instalation process you could help me with.
chico2016 said:
i am using the 1.4 version adb fastboot from the same link i got the images on this very helpful post
boot img -logo.img-recovery.img say flash on ,and the tablet marks ok that they have flashed---but no luck with the system.img even though i have re downloaded twice same thing .do you have a link that would go through a step by step instalation process you could help me with.
Click to expand...
Click to collapse
I don't have a tutorial posted per se on installation. Here's a thought. Boot your tablet into TWRP (fastboot boot TWRP.img) and flash my system.img via TWRP. In TWRP main menu select INSTALL, then select the .img file option in bottom right hand corner of screen. (You will need to put the system.img on an ext micro SD)
Hello,
I have an ASUS K01A tablet with a blank system partition and unusable recovery. I can flash img files to their respective partitions just fine (boot.img, droidboot.img) in fastboot, but 'system' in the stock firmware zip is a directory instead of a flashable image. Of course, this (and other reasons) means I can't just flash the stock firmware in fastboot, nor flash over the entire 'system' directory.
I need a system.img to recover my tablet from softbrick, but I can't for the life of me compile one. I've exhausted every method and tool I could find in both Windows and Ubuntu.
I beseech the community; if there is anyone reading this who could build such a file for me, I would be eternally grateful. I believe I only need the system.img to recover the tablet.
The stock firmware is at the ASUS website. Here is the download link: UL-K01A-WW-12.8.1.41-user.zip.
Thanks in advance!
Why not extract the system folder of the ZIP linked to, then pack it into a ZIP what you then convert to IMG using an online-convertor that does the job?
jwoegerbauer said:
Why not extract the system folder of the ZIP linked to, then pack it into a ZIP what you then convert to IMG using an online-convertor that does the job?
Click to expand...
Click to collapse
"Why not" indeed; that sounds like it would more than suffice. Can you please recommend one?
Anyone? I have been unable to find this "online-converter" despite days of searching; still at square one.
Only as example ( found via Google search !!! )
Archive Converter - Convert your a7z, rar, zip, gzip, bzip2, tar archives to another format online
Free Archive Converter. Convert your archive files to a7z, rar, zip, gzip, bzip2, tar format online for free using OnlineConvertFree.
onlineconvertfree.com
jwoegerbauer said:
Only as example ( found via Google search !!! )
Archive Converter - Convert your a7z, rar, zip, gzip, bzip2, tar archives to another format online
Free Archive Converter. Convert your archive files to a7z, rar, zip, gzip, bzip2, tar format online for free using OnlineConvertFree.
onlineconvertfree.com
Click to expand...
Click to collapse
Thank you, but I've tried this one and all the others on Google, and none will handle the filesize (~650 MB). It must be purpose-made for Android .img files it seems, which I've been unable to find.
Kehkou said:
Hello,
I have an ASUS K01A tablet with a blank system partition and unusable recovery. I can flash img files to their respective partitions just fine (boot.img, droidboot.img) in fastboot, but 'system' in the stock firmware zip is a directory instead of a flashable image. Of course, this (and other reasons) means I can't just flash the stock firmware in fastboot, nor flash over the entire 'system' directory.
I need a system.img to recover my tablet from softbrick, but I can't for the life of me compile one. I've exhausted every method and tool I could find in both Windows and Ubuntu.
I beseech the community; if there is anyone reading this who could build such a file for me, I would be eternally grateful. I believe I only need the system.img to recover the tablet.
The stock firmware is at the ASUS website. Here is the download link: UL-K01A-WW-12.8.1.41-user.zip.
Thanks in advance!
Click to expand...
Click to collapse
maybe that video helps you...
good luck
solong
speedson
I built it finally using IMGBurn to create the raw img and Sparse Converter to convert it to sparse img fragments.
But now the tab has formatting error, and with -u option, flashing errors (all partitions and imgs now). Ah, well.
Thank you to everyone! Hopefully someone else reading this will have better luck than me.
Kehkou said:
I built it finally using IMGBurn to create the raw img and Sparse Converter to convert it to sparse img fragments.
But now the tab has formatting error, and with -u option, flashing errors (all partitions and imgs now). Ah, well.
Thank you to everyone! Hopefully someone else reading this will have better luck than me.
Click to expand...
Click to collapse
Download the attached file from the link at the bottom of this post and unzip it somewhere on your PC. It is a temporary recovery launcher. We'll come back to it in a moment. Based on your original post I'm assuming you already have your stock firmware downloaded as well as ADB and Fastboot setup. From your stock firmware unpack the following files: fastboot.img, splashscreen.img, and boot.img and place them in your ADB/Fastboot folder. Copy the stock firmware to your sd card (in its original, unzipped form...the way it was when you first downloaded it). Put the tablet in fastboot mode. Run the following fastboot commands from a command prompt.
- fastboot flash fastboot fastboot.img
- fastboot flash boot boot.img
- fastboot flash splashscreen splashscreen.img
Reboot back to fastboot mode. Go to wherever you unzipped the temp recovery that you downloaded earlier. Double click on launcher.bat. Type accept in the window, then type T2 and your device should boot into CWM recovery. Now choose install zip>install from se card>and choose the stock firmware.zip that you previously copied to your sd card then let it do its thing. Once its finished go back to the first page of the CWM recovery that you're in and select reboot system now>no>no. You should be golden now. Post back if you have any issues.
Download Disposable Recovery