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!!
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Click to collapse
Related
I have a problem with one of my Lenovo A830 phones.
I bought it from Etotalk, so it came rooted, and with their custom version of the Lenovo Stock ROM and their custom version of CWM 5.5 installed.
I tried formatting my SD card and then doing a factory data reset from within the operating system. (I was intending to install MIUI V5 after rebooting into recovery).
However, on rebooting, the device is now caught in an infinite boot loop, and I am not able to boot into recovery mode (by holding down power and both volume keys). It loads the initial splash screen, then shows a few seconds of the Android character and some whirring cogs before rebooting.
I am able to boot into Factory mode (power and volume up) or Meta mode (power and volume down). Factory mode has a number of options, but they are all in Chinese characters, which I am unfortunately not able to read.
I did notice that my SD card seemed to be write protected when I tried to format it in my computer and to copy on the new ROM - I solved this by putting it in a different phone and reformatting it. I wonder whether the factory reset process has write protected something it shouldn't have?
Does anyone know how I might best proceed? I've been digging around on the forums, and tried a few things, but there's nothing which seems to provide a coherent solution for this problem.
I've got the latest Android SDK Tools, MTK Droid Tools 2.4.8, SP Flash Tool 3.1312, some additional ADB drivers (120827 v3.7) that I'm not sure how to install, the latest MIUI V5 ROM (3.8.16), and the latest stock Lenovo ROM (S118 from Need A ROM, just in case I need it).
Maybe different SP Flash Tools version?
I had trouble using SP Flash Tools v3.1312 with A830. Once I switched to v3.1304.0.119 I was able to flash both the original ROM and the custom MIUI one without serious issues. I'm unable to post the download link but google it.
One other thing is that when connecting the phone, it usually loads the something something Preloader driver, which is no good (even if it gives you Download OK). When attempting to flash either ROM, try pressing both the power and volume up buttons while connecting the phone (after pressing Download), only way it worked for me.
Good luck!
I managed to sort this out quite simply in the end!
On the Lenovo A830 (and presumably other Lenovo Android phones?), you enter recovery by pressing power and then pressing volume up / down together after a short pause. The short 1 - 2 second pause is important, because if you try and press them at the same time or in quick succession it doesn't seem to work.
I then installed MIUI V5 from the SD card followed by Google Apps after a reboot. In order to get MIUI to install, I had to remove the assert check at the top of the update script, because this seems to erroneously check for the A820 (even though there isn't currently a port for this device?). It's working excellently with two exceptions - I am unable to select the SD card as a storage device, and Google Play store is not searchable (it causes a Force Close).
tominglis said:
I managed to sort this out quite simply in the end!
On the Lenovo A830 (and presumably other Lenovo Android phones?), you enter recovery by pressing power and then pressing volume up / down together after a short pause. The short 1 - 2 second pause is important, because if you try and press them at the same time or in quick succession it doesn't seem to work.
I then installed MIUI V5 from the SD card followed by Google Apps after a reboot. In order to get MIUI to install, I had to remove the assert check at the top of the update script, because this seems to erroneously check for the A820 (even though there isn't currently a port for this device?). It's working excellently with two exceptions - I am unable to select the SD card as a storage device, and Google Play store is not searchable (it causes a Force Close).
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Click to collapse
Hello,
How did you manage to fix the reboot loop?I have the same problem,after a factory reset the phone just reboot like you said in first post...please help me fix it...
claudiuionel said:
Hello,
How did you manage to fix the reboot loop?I have the same problem,after a factory reset the phone just reboot like you said in first post...please help me fix it...
Click to expand...
Click to collapse
Hi I had similar "reboot loop" problem this morning after a phone factory reset.
I have no idea how I solved that but the following was the steps I tried:
1. Install the MTK6589_PdaNET_ADB_VCOM_Drivers. Skip the USB connection during setup. Start the PdaNET after setup finished.
2. Insert battery inside the phone and connect the phone with the computer by USB
In my case, the phone reboot loop once, and the lenovo screen appeared in the second restart. The phone hanged. I unplugged the cable, took out the battery, insert the battery again and start the phone normally again and it is working now.
I recommend installing the recovery rom after you have fixed the phone.
Goodluck
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.
My phone model is Micromax Knight 2 E471.
It was working fine but it all happened all of a sudden. I was trying to connect my phone to the computer to access some file. Suddenly, I got a message on my screen that Encryption interrupted with some text and a button to reset. I rebooted the phone but it had the same message and I had no option but to click on the Reset button. From that time until now... it does not want to boot.
Then I searched for it on google and tried to start with two key combinations Power+VolumeUp and Power+VolumeDown. Power+VolumeDown. does not do anything but Power+VolumeUp get me to a recovery screen that says failed to mount /system, /sdcard, /cache and so many things (screenshot attached).
From the recovery option, I tried
1. wipe data/factory reset - doesnt do anything
2. wipe cache partition - doesnt do anything
Then I took it to Micromax service center. They said, OS needs to be reloaded. I paid 250/- and got it reloaded but still the issue was not resolved. Now there is a new problem. When I start the phone, it appears that it is rebooting but there is absolutely nothing on the screen. The screen is completely blank and black. The strange part is that, it keep vibrating after every minute or so which makes me feel that it is caught in a boot loop but nothing is displayed on the screen. The Service center guys says that there could either be a display issue or motherboard issue and in both cases, the hardware cost would be more. But I feel it is a software issue.
I again googled it and got to a page https://firmwarefile.com/micromax-e471 where I downloaded the firmware. The firmware folder had a file "8939_fastboot_all_images" which is a windows batch file. I installed the driver, executed the 8939_fastboot_all_images batchfile and went to the recovery screen I got from Power+VolumeUp key combination. Selected reboot to bootloader. I got lot of things in the ms-dos window but still the problem is unresolved.
I appreciate if someone here could help me what to do next.
Thanks
Something wrong with the mount points, maybe? Have you tried flashing a custom recovery like TWRP?
Adithya FRK said:
Something wrong with the mount points, maybe? Have you tried flashing a custom recovery like TWRP?
Click to expand...
Click to collapse
I cannot do anything with a screen with no display.
Can you tell me how to flash a custom recovery when the phone is in boot loop
Thanks
Your phone seems to have a Snapdragon SOC. Sorry but I'm pretty much useless with that. If it was an mtk you could have removed the battery and use SP Flash tool. Maybe someone else can help you with this.
Good luck.
bump
ACFH said:
First, dont post something like "bump", you can get ban.
2nd, if you cant flash, this tool may have. https://forum.xda-developers.com/showpost.php?p=71705583&postcount=5
This is only one tool can flash rom in this situation. If it not work, it could be hardware issue, not software.
Edit: after install qualcomn usb driver, make sure your phone is turn off, hold volume down button while plug usb cable (some phone need volume up, some need both of them, some doesnt need any button). Remember dont touch power button. If pc detect your phone like Qualcomm HS-USB QDLoader, you can using emmc.
Click to expand...
Click to collapse
Sorry for that!
First of all ToolStudio eMMC Download Tool link does not work. I downloaded the 50MB+ zip file and extracted, it asks for a password which I already put but it doesnt do anything.
Then I downloaded a downgraded version from here https://drive.google.com/drive/folders/0B7SVwjaFGLv_by1OSlMtaU9tQVE but it does not work. mMMC Download or Multil Download does not show RAM, Boot Image etc. The comments on that page also shows that there are so many people who are unable to do it. Do you know of a reliable download source for ToolStudio eMMC Download Tool?
Or do you have any other solution?
Thanks
AM also facing that problem with e471
Always showing flashing successfully .
But booting into recovery mode..
Need solution dear
Afternoon
I have a Lenovo 7" tablet which is sticking on boot...to describe:
tablet off, charge screen working fine (green battery)
can get into menu to select fastboot mode or recovery
fastboot works, at least screen appears!
recovery shows dead android/no command screen - how to access recovery?
booting up, get inital orange logo then a 'bing' and start of boot but then freezes on the second logo
tablet not visible on PC, even in fastboot mode (have installed drivers)
I'm looking to get this going but am a bit stumped. I tried reinstalling firmware but can't get SPF Tools to work with any available scatter files; I would like to install TWRP (I found a potential image file on XDA) but can't do this until the PC recognises it....and I'm going round in circles now....any suggestions gratefully received. :good:
Update
OK, post was maybe a bit premature - I've kinda fixed my issues.
Managed to get into recovery after watching many videos (most of which were wrong, but hey-ho, got me on the right path!). At dead android screen, press and hold in power + vol up + vol down together (there is a bit of knack, turn it on its side with buttons facing up seems to be easiest) - this fires up the recovery screen (android standard recovery).
I managed to get over my bootloop issue by performing a data wipe/factory reset and cache wipe, then restarted fine.
As this was a secondhand tablet (my usual purchases - good condition bootloops!) - once it booted up I got into the set-up screens only to discover a Google lock issue. I ran the FRP unlock from here: https://androidfilehost.com/?fid=11050483647474832839 using the instructions from here: http://forum.gsmhosting.com/vbb/f958/lenovo-tab-4-7-essential-tb4-7304f-frp-remove-2322527/ (Voltrans second post, not the original one which has a 404 error on the download site). This removed the FRP lock straight off and now I have a functioning tablet.
I'm probably going to try getting custom recovery on so will see how that goes - I'll post back
and...that's all folks....
OK, despite finding a TWRP recovery online https://twrpbuilder.github.io/downloads/twrp/#441 and downloading it, can I get the fastboot unlocked? no.
Apparently Lenovo locked them all up and threw away the key, so nothing more can be done here.
I tried various iterations of fastboot oem unlock and fastboot flashing unlock, and nothing works, just get an error - and yes, I did put developer options on, OEM unlocking ticked and USB debugging active.... :silly:
So, unless someone can point me in a direction on how to unlock it - I've reached the end of the road with this one
Hello community,
I haven't posted here before, so I hope I'm not doing anything wrong.
I have a problem with my Neffos X1 and after browsing the internet for hours nothing helped so far, so I hope some of you can help me out.
My phone is stuck in a bootloop since yesterday evening. I haven't done any updates or new installations recently, so it just happened out of the blue. It loads till the Neffos logo and then restarts over and over again.
Since I can't take the battery out, I tried letting it run out of energy and then restart, but as soon as I connect it to a power source the bootloop will start again.
I read a lot about getting it in recovery mode or to try and flash it, but no matter what combination of buttons I try, nothing is happening. The phone basically doesn't react to anything and just keeps restarting. The only thing I noticed is, that when pushing both volume keys the screen will just stay black (no restarting), but after letting go the bootloop will start again.
I tried flashing it via SP Flash Tools, but the phone also doesn't react to it.
Lots of troubleshooting guides also require, that I have rooted my phone in the past, unfortunatly I haven't. I also read about unlocking the bootloader, but since my phone isn't reacting to any buttons and my laptop also doesn't seem to recognize my phone (probably because it doesn't boot proberly), that doesn't seem like a solution either.
To summarize: I'm stuck in a bootloop with no recovery mode, no rooting, no unlocking bootloader, probably can only use my laptop to do anything remotely.
So, is there anything you can think of, that might help me get out of the bootloop? Or ideas of what I may did wrong when trying the other solutions?
Thanks for any help in advance.
Same problem
I have the same problem, I have tried all kinds of soft reset and nothing is working I also opened the phone to check if anything was not connected properly, but everything seems fine except for that infinite loop. Please help!
Shotzo said:
I have the same problem, I have tried all kinds of soft reset and nothing is working I also opened the phone to check if anything was not connected properly, but everything seems fine except for that infinite loop. Please help!
Click to expand...
Click to collapse
Try this
Download phone's Stock Firmware onto your personal computer.
Install the USB MTK Drivers - NOT ANY OTHERS (skip if you have them already installed).
Download and Launch the Smart Phone Flash Tool (SP Flash Tool)
Click the Scatter-loading button to navigate to the Stock Rom you just downloaded.
Select the Scatter File from the extracted Stock Firmware on your computer.
Select the Download Only in the SP flash tool option
Click the Download button to start the Formating process.
Connect your phone via USB to the computer>> holding volume + and volume – button of your phone at the same time or holding power button only so that the flashing process will starting working
Patiently wait for your device to be formatted.
After the formatting is done, a Big Green button will pop up on the SP Flash to show that.
Unplug phone and boot it up.
If you have a boot loop after booting your device, boot into recovery mode and do a factory reset.
Voila, you are all good.