Lenovo Tab 3 7 Essential TB3-710F Bootloop - Android Q&A, Help & Troubleshooting

Hi.
I bought a Lenovo tab 3 7 Essential (TB3-710F, MediaTek MT8127 chipset) to use as a car computer.
First, I unlocked the bootloader using fastboot, which worked like a charm. I then downloaded the stock rom for the tablet and modified the "logo.bin" using logobuilder to get a desired splash screen. Before flashing the modified stock ROM, I tried to install a compatible version of twrp using fastboot. The installation succeeded, but the tablet only booted into stock recovery instead of twrp. Stupid as I was, I deleted the original "recovery.img" in the downloaded stock rom folder and replaced it with the twrp.img file renaming it to "recovery.img", convinced that this would fool the tablet to boot into twrp instead of stock. I then flashed the modified rom using sp flash tool. The process went through and as a result, the tablet didn't show any sign of life at all. Only a black screen. I assumed the tablet was hardbricked, so I tried to flash the unmodified, original stock rom again. This time the Lenovo splash screen showed up, but before proceeding to the boot animation, the tablet only ran into a bootloop, not going any further than the splash screen. I tried to boot into recovery to reset to factory settings, but all kinds of key combinations; Taking out the battery, re-inserting it, pressing power + Vol down + Vol Up, And also only vol up and down with power, neither seemed to work. For now, I have tried all the stock firmware I have found, but they all run into the same bootloop. I am really stuck for now, and I can't find a way to get past the bootloop or into recovery. Any help would be really appreciated.
Thanks in advance.

Hai, i also facing the same problem. Keep restarting at Lenovo loading

cikgutan said:
Hai, i also facing the same problem. Keep restarting at Lenovo loading
Click to expand...
Click to collapse
I eventually ended up buying a new tablet as I couldn't find any solution. I assume these "cheaper" mediatek devices aren't the most popular for such rooting purposes. Anyhow my problem was not with the rooting process, but rather trying to replace the splash screen boot logo. For rooting I used kingroot directly on the tablet. Had to run it a couple of times but it worked eventually. If you want to use a custom boot logo I recommend that you don't try to replace the splash screen logo, but rather the animation after, as this can be done directly on the tablet using a file manager. I just had to live with the first Lenovo logo and to be honest it didn't really bother me at all.

Related

Unable to boot to Recovery Mode GS3

Hello
I have been using my int Gs3 for sometime and decided to root and explore the mods and custom fw world. I have started with getting to root access and after that install CWM.
Then I try to install nightly cyanogenmod 10. It didnt work and boot back to normal GS3 Touchwiz interface. After that I tried the GooManager and when the phone is restarted it went to bootloop. I removed the battery and put it back. The problem started there.
The phone does not boot to any OS, I only can see the galaxy s3 9300 black splash screen and awatis there. I can go into download mode, but when I go into recovery mode, I can see the Android robot, and it dies The screen is too fast but what I can see it cannot mount EFS, System and any folder.
So I have tried several different methods
- Tried to flash with original rom, different roms, CWM and what I can find suitable for international model. But everytime I got stucked in Nand Write part. In some of them, the flash started and stucked in installing some parts(passes the cache and hidden and stuck after that)
- Tried with bricked phone roms, different PIT files and Bootloader Vralec methods.
- When I am trying these, I have tried with 3 different PC's with/without KIES and Samsung drivers installed. When I plug the phone in Download mode, the PC recognizes it as Generic device.
- I manage to flash the CWM but when it restarts it does not go any further than the first splash screen, but in Odin, some time later it turns to pass. Funny, when the phone is on Galasy S3 black splash screen, the pc recognizes the phone and starts to install the driver.
So, here is an interesting flashing story of mine. I really would appreciate your valuable comments and suggestions.
Thanks in advance.
cugami said:
Hello
I have been using my int Gs3 for sometime and decided to root and explore the mods and custom fw world. I have started with getting to root access and after that install CWM.
Then I try to install nightly cyanogenmod 10. It didnt work and boot back to normal GS3 Touchwiz interface. After that I tried the GooManager and when the phone is restarted it went to bootloop. I removed the battery and put it back. The problem started there.
The phone does not boot to any OS, I only can see the galaxy s3 9300 black splash screen and awatis there. I can go into download mode, but when I go into recovery mode, I can see the Android robot, and it dies The screen is too fast but what I can see it cannot mount EFS, System and any folder.
So I have tried several different methods
- Tried to flash with original rom, different roms, CWM and what I can find suitable for international model. But everytime I got stucked in Nand Write part. In some of them, the flash started and stucked in installing some parts(passes the cache and hidden and stuck after that)
- Tried with bricked phone roms, different PIT files and Bootloader Vralec methods.
- When I am trying these, I have tried with 3 different PC's with/without KIES and Samsung drivers installed. When I plug the phone in Download mode, the PC recognizes it as Generic device.
- I manage to flash the CWM but when it restarts it does not go any further than the first splash screen, but in Odin, some time later it turns to pass. Funny, when the phone is on Galasy S3 black splash screen, the pc recognizes the phone and starts to install the driver.
So, here is an interesting flashing story of mine. I really would appreciate your valuable comments and suggestions.
Thanks in advance.
Click to expand...
Click to collapse
GO here : http://forum.xda-developers.com/showthread.php?t=1993044

[Q] No power to Wiko Darkmoon (MT6582) after Recovery Flash attempt

Hey all,
In an attempt to load the custom ROM from http://forum.xda-developers.com/showthread.php?t=2658343 I kinda broke the phone.
Part of the steps is to flash the custom Recovery screen.
In the steps you use the Scatter file that's provided and load that up with the SP FlashTool.
Problem though is that I started to get the error SP FLASH TOOL ERROR : (8038).
I then read that by using MTK Droid Root & Tools, I could create a new Scatter file that would fix the error...
Created the new scatter file and then when I loaded it, I got the Big Green Circle saying everything was cool.
Rebooted the phone and it wouldn't come back on.
Crap.
Tried loading into the Recovery screen using the volume and power button, but nothing shows up on the screen.
Tried plugging it into my Win7 and WinXP computers but neither recognize the device and nothing shows up on the screen to say that it's charging.
Is this phone completely gone or is there something that can be done?
Old thread but somehow connected brand new experience to be documented:
What I just experienced was, after a cancelled attempt of flashing recovery, the phone was off and didn't go back on. I tried fiddling with the buttons and assumed it was bricked. Fortunately I didn't give up too soon. It was only after pressing the on button for a very extended time (>30secs?) that it came back to life. It didn't boot further than Wiko logo, but the key reactions were back to normal concerning reboot, booting recovery and cold start.

Lenovo TAB S8-50F won't boot, help!

I'm not a n00b, I've rooted every Android device I've ever had, and I have my OnePlus Two running the latest CM14.1 nightlies. But I can not figure out what to do for this poor tablet.
I had downloaded and installed an OTA from Lenovo, but it must have been corrupt because the tablet got stuck in a boot loop. I can boot into recovery, so I tried formatting it and clearing all the caches, then it goes to a screen with a loading bar, which fills completely and just sits there. I've left the thing on all night. Nothing.
Sending it to Lenovo is a no-go because I voided the warranty when I rooted it.
I've also tried reinstalling the stock firmware, but the Intel phone flash tool either get's blocked by Windows 10 (with no way to whitelist it) or fails to flash properly.
crandroid99 said:
I'm not a n00b, I've rooted every Android device I've ever had, and I have my OnePlus Two running the latest CM14.1 nightlies. But I can not figure out what to do for this poor tablet.
I had downloaded and installed an OTA from Lenovo, but it must have been corrupt because the tablet got stuck in a boot loop. I can boot into recovery, so I tried formatting it and clearing all the caches, then it goes to a screen with a loading bar, which fills completely and just sits there. I've left the thing on all night. Nothing.
Sending it to Lenovo is a no-go because I voided the warranty when I rooted it.
I've also tried reinstalling the stock firmware, but the Intel phone flash tool either get's blocked by Windows 10 (with no way to whitelist it) or fails to flash properly.
Click to expand...
Click to collapse
What I've tried:
Just plain booting it - screen turns on and doesn't do anything, just black
Rebooting through recovery (power + vol_up) - plays boot animation, goes to a screen with a loading bar like it does after an update, but once the bar fills, a white line appears at the top of the screen and nothing happens
Downloading the official KitKat firmware (http://forum.xda-developers.com/android/help/lenovo-tab-s8-50f-stock-firmware-rom-t2989791), unarchiving the rar file and rearchiving it into a .zip, putting it on a MicroSD card, putting the card in the tablet, flashing through recovery - can't find the .zip, says SD card is blank
Clearing caches and wiping data - same as when rebooting through recovery
Using the Intel phone flash tool through bootloader (power + vol_down) - tool can't find device
Using the same tool through fastboot (power + vol_up + vol_down) - gets to the sleep 4000 ms step, reboots the device, then the device goes to the same loading screen and the flash tool can't contact it. I think it's trying to boot into the OS to finish the flash, but that's the problem to begin with
I've tried loading the temporary CWM session but that fails
I can't for the life of me figure out what the @bailka011 Unlock Tool is supposed to do or how to use it, plus the download link isn't working.
Can someone please guide my through this? I'm so confused
crandroid99 said:
What I've tried:
Just plain booting it - screen turns on and doesn't do anything, just black
Rebooting through recovery (power + vol_up) - plays boot animation, goes to a screen with a loading bar like it does after an update, but once the bar fills, a white line appears at the top of the screen and nothing happens
Downloading the official KitKat firmware (http://forum.xda-developers.com/android/help/lenovo-tab-s8-50f-stock-firmware-rom-t2989791), unarchiving the rar file and rearchiving it into a .zip, putting it on a MicroSD card, putting the card in the tablet, flashing through recovery - can't find the .zip, says SD card is blank
Clearing caches and wiping data - same as when rebooting through recovery
Using the Intel phone flash tool through bootloader (power + vol_down) - tool can't find device
Using the same tool through fastboot (power + vol_up + vol_down) - gets to the sleep 4000 ms step, reboots the device, then the device goes to the same loading screen and the flash tool can't contact it. I think it's trying to boot into the OS to finish the flash, but that's the problem to begin with
I've tried loading the temporary CWM session but that fails
I can't for the life of me figure out what the @bailka011 Unlock Tool is supposed to do or how to use it, plus the download link isn't working.
Can someone please guide my through this? I'm so confused
Click to expand...
Click to collapse
what did it says the update would do? android 6.0? latest update for this tablet was released 7 months ago... the unlock tool u mentioned unlocks the bootloader, and try to find a win7 pc to do the flashing. some users on a different forum stated that windows 10 will cause problems during flashing
good luck
xaocot said:
what did it says the update would do? android 6.0? latest update for this tablet was released 7 months ago... the unlock tool u mentioned unlocks the bootloader, and try to find a win7 pc to do the flashing. some users on a different forum stated that windows 10 will cause problems during flashing
good luck
Click to expand...
Click to collapse
This update was seven months ago. It did not claim to bring 6.0, just minor fixes.
Thank you for clearing that up, now I just have to figure out how to download and use it xD.
Also I have figured out how to enable the hidden administrator account in Win10 and use that to get around the security warning, still tries to boot partway through flashing. Unless there's some other part of Win10 that's disagreeing with it.
Sent from my ONE A2005 using Tapatalk
the same problem with me!
crandroid99 said:
What I've tried:
Just plain booting it - screen turns on and doesn't do anything, just black
Rebooting through recovery (power + vol_up) - plays boot animation, goes to a screen with a loading bar like it does after an update, but once the bar fills, a white line appears at the top of the screen and nothing happens
Downloading the official KitKat firmware (http://forum.xda-developers.com/android/help/lenovo-tab-s8-50f-stock-firmware-rom-t2989791), unarchiving the rar file and rearchiving it into a .zip, putting it on a MicroSD card, putting the card in the tablet, flashing through recovery - can't find the .zip, says SD card is blank
Clearing caches and wiping data - same as when rebooting through recovery
Using the Intel phone flash tool through bootloader (power + vol_down) - tool can't find device
Using the same tool through fastboot (power + vol_up + vol_down) - gets to the sleep 4000 ms step, reboots the device, then the device goes to the same loading screen and the flash tool can't contact it. I think it's trying to boot into the OS to finish the flash, but that's the problem to begin with
I've tried loading the temporary CWM session but that fails
I can't for the life of me figure out what the @bailka011 Unlock Tool is supposed to do or how to use it, plus the download link isn't working.
plz someone too guide me ,the same problem is happening but there is no appearance of a loading screen,when i switch on the tab ,it showws the lenova logo and goes to a black screen thats keeps on flahsing!! i dont knwo what to do ,when i connect to pc and try to flash it doesnt work,i dont what to do plz help me!!
Click to expand...
Click to collapse

"soft-bricked" Essential Phone

Originally posted by: Azpre
Hello
A while ago, I tried to root my Essential Phone using magisk. I unlocked the bootloader, flashed twrp, but when I tried to install the magisk zip file, it failed, and I was stuck in a bootloop.
Easy problem to solve right? I wiped everything from my phone (including the ROM), downloaded a stock ROM (.ZIP file, and I think that’s what ****ed everything up) and when I tried to install it, it failed once again. Therefore, I downloaded another stock ROM file (this time as a .img file) and tried to installed it.
But what I ended up doing, was installing some other .img file as the boot image (on twrp), and after that, my phone kept restarting endlessly. I couldn’t access the recovery mode (if I tried to press the vol down + start buttons, or just the start button, the process would repeat, so I leaved my phone there until it run out of battery, now its off).
I was despaired and tried to search every inch of the internet for a solution, and obviously, I could not find it.
Any help would be greatly appreciated
Thanks for your attention.
(Im not sure if this is really a soft brick, I named this thread wit my basic knowlage, sorry if Im wrong)
Hi , what is full Model of phone ? and did you tried with fastboot flashing ?
https://www.youtube.com/watch?v=RrMLqSXcxjI
Teddy Lo said:
Hi , what is full Model of phone ? and did you tried with fastboot flashing ?
Click to expand...
Click to collapse
going to give it a shot after I buy another type - C cable, because mine just broke ;-;
but I think that's not going to work, because I can't access the recovery mode menu
when I press the power + vol down keys the Essential's logo appears and get stuck in a bootloop
Thanks anyways

Ulefone Armor 3T; Custom Recovery + Root

I'm having a bit of trouble with this. I've already been through NMaverick's guide, to very limited success. I was able to flash an older version of my firmware with SP Flash Tool, and get TWRP flashed and booted into recovery, disabled encryption, and installed Magisk. My screen is flickering, so I don't want to leave it like this.
Does anyone have any advice on how best to move to the newest firmware without losing TWRP/root?
Just to add: With my most recent firmware available, the screen doesn't flicker, all the stock functionality appears to work fine, but I can't boot into recovery. When I hold down Volume Up, the phone acts like it's stuck in a boot loop. I get a green line across the top of the screen after the boot logo, and then it tries to boot again. Letting go of Volume Up results in a normal boot to the OS.
Hello everyone, where I can find this version for the 3T or if someone has it in Backup, it is very important for me to find it:
CQ3060MF2_AGS32_Armor_3T_20181107_V01
Thank you

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