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[Q] stuck in boot loop

I've got my tf300t stuck in a boot loop when i turned it on today. (Ive looked around the forums for this issue already and been able to find little or no solutions that work for me)
I'm using cm10 and twrp. last night i shut the tablet off as usual and go to turn it on today and i cant get past the white asus logo and device unlocked screen.
I can access my twrp recovery menu, wiping dalvik returns a "E:Unable to mount '/data' (tw_mount)" cache wipes fine no errors.
I'm unable to flash another rom or restore from a back up as well.
Fastboot says its working but in cmd prompt it wont list the device. (computer recognizes it and it shows in device manager as android adb interface)
If there is any other information needed I will be more than happy to provide it.
any tips or help is greatly appreciated.
thanks in advanced.

I'm not yet very fammiliar yet with TF300, but from SGS 1 and ICS I remember one trick. If you have external microSD pluged, take it out or of you don't have it plug it in and then enter TWRP.
It probably won't work but you can try anyway.
Does TWRP have any file browser? I'm using CWM so I don't know much about TWRP.

stenc55 said:
I'm not yet very fammiliar yet with TF300, but from SGS 1 and ICS I remember one trick. If you have external microSD pluged, take it out or of you don't have it plug it in and then enter TWRP.
It probably won't work but you can try anyway.
Does TWRP have any file browser? I'm using CWM so I don't know much about TWRP.
Click to expand...
Click to collapse
Yeah it does have the file browser, upon initial booting i can browse an sd card ( i have a few of various sizes none seem to to be having any affect) and i can browse the internal storage as well. Booting both with and without the sd card in the device still leaves me in the boot loop.

So, can you copy new rom to sd card, then copy from sd to internal and install new rom? I think only option you have is to reinstall rom.

stenc55 said:
So, can you copy new rom to sd card, then copy from sd to internal and install new rom? I think only option you have is to reinstall rom.
Click to expand...
Click to collapse
I can and have tried but it wont let me flash with the "unable to mount /data" error. It tells that my external sd-card and whatever rom i attempt to flash has problems

Hagenator said:
I can and have tried but it wont let me flash with the "unable to mount /data" error. It tells that my external sd-card and whatever rom i attempt to flash has problems
Click to expand...
Click to collapse
Be sure your sdk is up to date.
1. If you hold volume down plus power button to get to fastboot.
2. shift + control right click fastboot folder on computer then open command prompt.
3. type devices... and if it is not showing a device there something is not right.
4. you can try adb push to apply a flash if your device is not wanting to flash from sd card.

M
Repairtech123 said:
Be sure your sdk is up to date.
1. If you hold volume down plus power button to get to fastboot.
2. shift + control right click fastboot folder on computer then open command prompt.
3. type devices... and if it is not showing a device there something is not right.
4. you can try adb push to apply a flash if your device is not wanting to flash from sd card.
Click to expand...
Click to collapse
I've tried this as well. It was my first thought. Also it states in my original post that fastboot doesnt list my device, adb doesnt list it as well. Both are recent and up to date. However device manager does recognize it and windows makes the little notification sound. In safely remove devices it shows up as fastboot when i enable fastboot on the device.

big problem whit my htc one x at&t usb mass storage device

hi all, hope u can help me.
i have an htc one x AT&T / CID 1111111
HBOOT- 2.14.0000
Unlocked
i just want to install a room but i cant.
I Install the recover cwm-6.0.4.5.img go to mount and storage but i cant because i got this message : usb Mass storage device leaving this menú unmounts your sd card from your pc.
i have the last driver on my pc and also htc sync. im try with openrecovery-twrp-2.6.3.0-evita without result.
I dont have backup only the room 4.2 to install.
hope u help me. i just want to my sd reconice my pc.
sorry for my bad english .

The message you get in CWM recovery (usb mass storage device, leaving this menu unmounts your sd card from your PC) looks right to me. That means it's currently mounted and should show up as a removable drive on the PC. Is it not showing up?
What happens when you enter the mount menu in TWRP and select mount usb storage?
Are you using the HTC usb cable? Are you using a usb 2.0 port? Have you tried different cables/ports? Have you tried with a different PC?
Sent from my Evita

timmaaa said:
The message you get in CWM recovery (usb mass storage device, leaving this menu unmounts your sd card from your PC) looks right to me. That means it's currently mounted and should show up as a removable drive on the PC. Is it not showing up?
What happens when you enter the mount menu in TWRP and select mount usb storage?
Are you using the HTC usb cable? Are you using a usb 2.0 port? Have you tried different cables/ports? Have you tried with a different PC?
Sent from my Evita
Click to expand...
Click to collapse
Hi,
Yes im using the HTC usb cable,
What happens when you enter the mount menu in TWRP and select mount usb storage? nothing, yes im tried whith a different PC.
its posible to get a recovery.img? coul fix the problem?

I don't think a different recovery will help, I don't think that's the problem. Does your device show up at all when connected to the PC? Did it ever connect properly? If it connected properly in the past what did you do to the phone before it stopped connecting?
Sent from my Evita

timmaaa said:
I don't think a different recovery will help, I don't think that's the problem. Does your device show up at all when connected to the PC? Did it ever connect properly? If it connected properly in the past what did you do to the phone before it stopped connecting?
Sent from my Evita
Click to expand...
Click to collapse
well I install the last kernel i got some problemas, so i just want to reset all and when i want to install the room from the recovery i got tihs message /storage/sdcard0: Shared-unmonted also i format the sd from the recovey but always i see this file LOST.DIR/
my divice not show up on the pc. im trying install using the metho adb.zip but it said: Error device no found a and the only way to enter to recovery mod allways i have to tipe from my pc. fastboot boot "recvoery" because whne i used the htc one x bootloader didnt install

The command "fastboot boot recovery" isn't right, try "fastboot reboot-recovery" instead.
Sent from my Evita

timmaaa said:
The command "fastboot boot recovery" isn't right, try "fastboot reboot-recovery" instead.
Sent from my Evita
Click to expand...
Click to collapse
HI, i see a lot of commands like update / flashall / boot etc etc, can i install a room from the bootloader usb withou recovery or openrecovery-twrp-2.6.3.0-evita¿ using the command line?

timmaaa said:
The command "fastboot boot recovery" isn't right, try "fastboot reboot-recovery" instead.
Sent from my Evita
Click to expand...
Click to collapse
Thank u for the help bro, im do this from this case:
Go to the folder you installed the SDK tools to If your on Windows 7 x64 and installed it using the default paths it will be located here C:\Program Files (x86)\Android\android-sdk\platform-tools when at that folder move the recovery image file in to that folder then hold shift and right click in the folder select open command window here.
Now get your phone back into the bootloader select fastboot and connect it to your pc when your phones bootloader says fastboot usb its connected and ready to fix.
type fastboot flash recovery openrecovery-twrp-2.1.8.1-evita.img
that will update your recovery to TWRP which is much better than CWM. From there you can select reboot into recovery from the bootloader TWRP will load up you can Wipe /system /cache then mount your phone to your PC and upload any ROM you want. I recommend AOKP or CleanROM and flash away.
my problema was that my cpu not recongine my usb. now i can format and install room
thank u

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I have accidentally formatted my entire LG G2(VS980) in CWM. and now I am stuck at the main LG screen with nowhere to go because their is no ROM installed. I cant use adb sideload either because I cant confirm the handshake and ive tried to use OTG in CWM but nothing pops up. I have wasted money on an over the night delivery because someone guaranteed me it would work so now I am out money....please I really need help...I am so screwed...:crying:

MoE MuRk said:
I have accidentally formatted my entire LG G2(VS980) in CWM. and now I am stuck at the main LG screen with nowhere to go because their is no ROM installed. I cant use adb sideload either because I cant confirm the handshake and ive tried to use OTG in CWM but nothing pops up. I have wasted money on an over the night delivery because someone guaranteed me it would work so now I am out money....please I really need help...I am so screwed...:crying:
Click to expand...
Click to collapse
FIRST: calm down please
Which version of CWM is installed? You can mount USB storage in the recovery and simply copy a rom to your sdcrad as it will be handled as usb mass storage. In case you can't mount storage --> we'll get it working another way
WHY you use adb to copy files? Mass storage is even more easy + safe

LS.xD said:
FIRST: calm down please
Which version of CWM is installed? You can mount USB storage in the recovery and simply copy a rom to your sdcrad as it will be handled as usb mass storage. In case you can't mount storage --> we'll get it working another way
WHY you use adb to copy files? Mass storage is even more easy + safe
Click to expand...
Click to collapse
v6.0.4.4 is the version of CWM I have

MoE MuRk said:
v6.0.4.4 is the version of CWM I have
Click to expand...
Click to collapse
You can mount USB storage in the recovery and simply copy a rom to your sdcrad as it will be handled as usb mass storage.
Can you do like this?

LS.xD said:
You can mount USB storage in the recovery and simply copy a rom to your sdcrad as it will be handled as usb mass storage.
Can you do like this?
Click to expand...
Click to collapse
when I try to mount USB it doesn't do anything at all. I tap on it and it does nothing at all

MoE MuRk said:
when I try to mount USB it doesn't do anything at all. I tap on it and it does nothing at all
Click to expand...
Click to collapse
Device must connected to pc... If it does not mount try restarting the recovery and do again. Close all adb instances on your computer.

LS.xD said:
Device must connected to pc... If it does not mount try restarting the recovery and do again. Close all adb instances on your computer.
Click to expand...
Click to collapse
ok i didn't close ADB ill try that in device manager it doesn't recognize my phone..do you know the commands to shut down all ADB stuff?

MoE MuRk said:
ok i didn't close ADB ill try that in device manager it doesn't recognize my phone..do you know the commands to shut down all ADB stuff?
Click to expand...
Click to collapse
Str-Alt-Del --> Close ADB.exe
also use a different USB port!
And have you installed latest USB drivers for your device?

FIXED!!!
Fixed thanks to LS.xD.....GENIUS!!!!!

Fully Wipe internal Storage and flash new Rom from Pc

Hey guys, I just wanted to know if there is any way by which I could completely wipe the internal memory and flash a rom, kernel etc straight from the PC through USB? Also If someone could recommend a Rom and gapps (xposed user) it would be greatly appreciated. Thank you.
Sent from my A0001 using XDA-Developers mobile app

Edit : I don't necessarily have to flash from the PC, I just want to completely wipe the Internal memory before flashing a new Rom coz of viruses. Thank you
Sent from my A0001 using XDA-Developers mobile app

You have that option on Twrp.
Wipe -> Advanced -> Choose all partitions including internal storage
If you to Instal new rom from PC, you have to use fastboot but you can use USB otg to

FSadino said:
You have that option on Twrp.
Wipe -> Advanced -> Choose all partitions including internal storage
If you to Instal new rom from PC, you have to use fastboot but you can use USB otg to
Click to expand...
Click to collapse
But if I choose Internal storage from TWRP won't the rom and gapps get erased too?
Sent from my A0001 using XDA-Developers mobile app

Well yes that would happen, you'd delete the files you put on the internal storage so, when you do the "full" wipe in TWRP using the Advanced wipe option, select everything except the internal storage which will leave those files located there intact.

br0adband said:
Well yes that would happen, you'd delete the files you put on the internal storage so, when you do the "full" wipe in TWRP using the Advanced wipe option, select everything except the internal storage which will leave those files located there intact.
Click to expand...
Click to collapse
I understand but I want to wipe the internal storage too , is there a way for me to flash the files from the PC through recovery?
Sent from my A0001 using XDA-Developers mobile app

No, there's not really much you can do at that point since you'd be cleaning out any content there you'd need to redo the phone back to a functional state. The only types of ROMs you can flash directly in fastboot mode are pretty much the factory CyanogenOS ones from what I can tell, those are the only ones provided as actual partition images, the rest are designed to be installed through recovery, even OxygenOS comes in a recovery flashable form (the last one for the OPO, 2.1.4).
Well there's one possible way: using an OTG USB stick with the ROM files on that, it might work but I can't say for certain it will. You could do the full wipe including the internal storage, use the file manager in TWRP to copy the ROM from the OTG USB stick back to internal storage then flash, maybe.

Just put all the files you need on pen drive, wipe all partitions including internal storage, plug pen drive through otg cable and flash everything you need

galaxys3lover said:
Edit : I don't necessarily have to flash from the PC, I just want to completely wipe the Internal memory before flashing a new Rom coz of viruses. Thank you
Sent from my A0001 using XDA-Developers mobile app
Click to expand...
Click to collapse
Android is vulnerable to virus?

I just wipe and transfer the ROM/Gapps/addons from my PC while still in recovery.
This has always worked fine with my Oneplus One. My Note 5 and Galaxy Tab S2 will not be detected by my PC in recovery.

ADB sideload the ROM after erasing the Internal Storage

Doomerts said:
I just wipe and transfer the ROM/Gapps/addons from my PC while still in recovery.
This has always worked fine with my Oneplus One. My Note 5 and Galaxy Tab S2 will not be detected by my PC in recovery.
Click to expand...
Click to collapse
Thank you. Is there a tool to do that? I remember having a tool to do that for the S3.
Sent from my A0001 using XDA-Developers mobile app

galaxys3lover said:
Thank you. Is there a tool to do that? I remember having a tool to do that for the S3.
Click to expand...
Click to collapse
euh, Windows explorer?
I don't use a tool at all. I plug in the USB cable, computer goes "pling", I drag and drop files from my computer into the phone's folder and done.
If you can't do this I'm not really even sure where to begin to find out why I can and you can't. Try just, going into recovery, plugging your phone into your computer and seeing what happens?

Doomerts said:
euh, Windows explorer?
I don't use a tool at all. I plug in the USB cable, computer goes "pling", I drag and drop files from my computer into the phone's folder and done.
If you can't do this I'm not really even sure where to begin to find out why I can and you can't. Try just, going into recovery, plugging your phone into your computer and seeing what happens?
Click to expand...
Click to collapse
My bad , I thought windows woudnt recognize the phone storage while in recovery , I thought i would have to do it through fastboot , i just checked it reads while in recovery ,I will try flashing now , Thanks for your help

galaxys3lover said:
My bad , I thought windows woudnt recognize the phone storage while in recovery , I thought i would have to do it through fastboot , i just checked it reads while in recovery ,I will try flashing now , Thanks for your help
Click to expand...
Click to collapse
We cool. Good luck!

You could always just format everything through recovery and then either push or sideload the new rom through adb.

darshiz said:
ADB sideload the ROM after erasing the Internal Storage
Click to expand...
Click to collapse
this is the right answer

I'm surprised people haven't come up with ADB push yet.
Before wiping everything ADB pull the required files.
Wipe everything from the recovery, and while in recovery, ADB push everything you pulled back to the device.
Profit!

Mr.Ak said:
Android is vulnerable to virus?
Click to expand...
Click to collapse
Everything that is connected to the internet is vulnerable to virus

SuperSU mtp issues with Samsung Galaxy Tab A SM T580

I'm trying to root my Samsung galaxy tab A sm t580 using this guide: https://forum.xda-developers.com/ga...overy-official-twrp-gtaxlwifi-galaxy-t3437666
Everything has gone smoothly up to step 11. However, when I try to transfer the supersu zip from my PC to the tab, I get an error message: "Cannot copy item. The device has either stopped responding or has been disconnected." I only get this error for supersu, other files will transfer normally. I'm very new to rooting, android, and windows so it's possible I'm making a very simple mistake but I can't figure it out. Any ideas?

PleaseHelpMe22 said:
I'm trying to root my Samsung galaxy tab A sm t580 using this guide: https://forum.xda-developers.com/ga...overy-official-twrp-gtaxlwifi-galaxy-t3437666
Everything has gone smoothly up to step 11. However, when I try to transfer the supersu zip from my PC to the tab, I get an error message: "Cannot copy item. The device has either stopped responding or has been disconnected." I only get this error for supersu, other files will transfer normally. I'm very new to rooting, android, and windows so it's possible I'm making a very simple mistake but I can't figure it out. Any ideas?
Click to expand...
Click to collapse
If the device boots, why not just download SuperSU.zip on the tablet via mobile browser? It's a workaround if you can't solve this.
Have you made certain that PC has full USB permissions, have you made sure your device settings are correct for allowing PC to access the device?
If you already have TWRP installed, you can boot to TWRP and use adb to push the SuperSU.zip file to the folder of your choice on the tablet.
Sent from my SM-S903VL using Tapatalk

Droidriven said:
If the device boots, why not just download SuperSU.zip on the tablet via mobile browser? It's a workaround if you can't solve this.
Have you made certain that PC has full USB permissions, have you made sure your device settings are correct for allowing PC to access the device?
If you already have TWRP installed, you can boot to TWRP and use adb to push the SuperSU.zip file to the folder of your choice on the tablet.
Sent from my SM-S903VL using Tapatalk
Click to expand...
Click to collapse
I'm not 100% sure, but assuming that since other files besides supersu are transferred normally that all the permissions and access are fine on the PC. I downloaded the supersu zip directly on the tab but I can't find it anywhere to install on twrp, does this method involve something else? I'm not really sure how to use adp, I opened the adp sideload on twrp and all I got was unable/failed to mount data and then my PC never recognized my tablet when plugged in.

PleaseHelpMe22 said:
I'm not 100% sure, but assuming that since other files besides supersu are transferred normally that all the permissions and access are fine on the PC. I downloaded the supersu zip directly on the tab but I can't find it anywhere to install on twrp, does this method involve something else? I'm not really sure how to use adp, I opened the adp sideload on twrp and all I got was unable/failed to mount data and then my PC never recognized my tablet when plugged in.
Click to expand...
Click to collapse
Install ES File Explorer on the tablet, open it, click on internal storage, look in your download folder or if you used a certain browser or downloaded to download the file, it might be in a folder with the same name as the browser or downloaded that you used.
As for the permissions being right to move other files, it may depend on where you're trying to move it to on the device, are you trying to move SuperSU.zip to a different location than where you moved the other files?
The best place to put the SuperSU.zip file is in the root of your internal storage, in other words, on the internal sdcard but not in any of the folders, just by itself. Then it's easier to find in TWRP.
Sent from my SM-S903VL using Tapatalk

I downloaded ES file explorer, and the supersu zip shows on the internal storage by itself as well as in the download folder. When I boot into twrp, it says my internal storage is 0mb and there's nothing in there at all, every folder is empty.
Also, when I was transferring files from PC to the tab there were no folders available, I was just dragging and dropping onto the device itself.

PleaseHelpMe22 said:
I downloaded ES file explorer, and the supersu zip shows on the internal storage by itself as well as in the download folder. When I boot into twrp, it says my internal storage is 0mb and there's nothing in there at all, every folder is empty.
Also, when I was transferring files from PC to the tab there were no folders available, I was just dragging and dropping onto the device itself.
Click to expand...
Click to collapse
The usual solution to this is:
Boot to system, set a lockscreen pin or password(do not use pattern, has to be PIN or password), make sure it's set to be required at startup(if it doesn't do it by default on your device), then boot to TWRP, enter PIN or password and that should allow you to see your files.
Sent from my SM-S903VL using Tapatalk

Droidriven said:
The usual solution to this is:
Boot to system, set a lockscreen pin or password(do not use pattern, has to be PIN or password), make sure it's set to be required at startup(if it doesn't do it by default on your device), then boot to TWRP, enter PIN or password and that should allow you to see your files.
Sent from my SM-S903VL using Tapatalk
Click to expand...
Click to collapse
I have a pin set up and it is required at startup, but it doesn't prompt when I boot into twrp

PleaseHelpMe22 said:
I have a pin set up and it is required at startup, but it doesn't prompt when I boot into twrp
Click to expand...
Click to collapse
Did you have your device encrypted before you started this process? If so, you'll have to remove the encryption before TWRP will work. Removing encryption will probably wipe your data. You may have to reflash your stock firmware, you might even have to wipe all partitions before flashing.
Do some searching to see what is the safest way to remove encryption on your model number, doing it wrong could make things worse.
Sent from my SM-S903VL using Tapatalk

I definitely didn't encrypt manually, so only if it would come encrypted. How do I find that out? I bought the tablet specifically to root, so I've started completely from scratch.

PleaseHelpMe22 said:
I definitely didn't encrypt manually, so only if it would come encrypted. How do I find that out? I bought the tablet specifically to root, so I've started completely from scratch.
Click to expand...
Click to collapse
That's strange. I'm not sure what the issue is then. Have you tried flashing a different version of TWRP for your model number? Sometimes the issue is in the recovery itself.
Sent from my SM-S903VL using Tapatalk

I just tried with all 3 versions of twrp available for my device, all 3 were no goes. The supersu zip is for sure saved on my tablet, but I have the same issue with all 3 versions of twrp; the internal storage shows as 0mb and the supersu zip is MIA. I tried transferring the zip over mtp outside of twrp and that worked, but while in twrp I still get the "device has stopped responding" error with all 3 versions.

PleaseHelpMe22 said:
I just tried with all 3 versions of twrp available for my device, all 3 were no goes. The supersu zip is for sure saved on my tablet, but I have the same issue with all 3 versions of twrp; the internal storage shows as 0mb and the supersu zip is MIA. I tried transferring the zip over mtp outside of twrp and that worked, but while in twrp I still get the "device has stopped responding" error with all 3 versions.
Click to expand...
Click to collapse
Have you tried using the mount feature in TWRP to mount the partitions that you're accessing?
Sent from my SM-S903VL using Tapatalk
---------- Post added at 12:30 AM ---------- Previous post was at 12:19 AM ----------
PleaseHelpMe22 said:
I just tried with all 3 versions of twrp available for my device, all 3 were no goes. The supersu zip is for sure saved on my tablet, but I have the same issue with all 3 versions of twrp; the internal storage shows as 0mb and the supersu zip is MIA. I tried transferring the zip over mtp outside of twrp and that worked, but while in twrp I still get the "device has stopped responding" error with all 3 versions.
Click to expand...
Click to collapse
Wait, how are you trying to do this?
If the SuperSU.zip is on your internal storage then all should have to do is boot to TWRP, tap the "install" button, then find where SuperSU.zip is stored and flash it.
Is that not working?
I am familiar with the usual causes and fixes of this but I've never had this issue myself.
I'm thinking you might not be using the right recovery for your model or you aren't doing something right, something so simple I'm overlooking it.
Sent from my SM-S903VL using Tapatalk

Droidriven said:
Have you tried using the mount feature in TWRP to mount the partitions that you're accessing?
Sent from my SM-S903VL using Tapatalk
---------- Post added at 12:30 AM ---------- Previous post was at 12:19 AM ----------
Wait, how are you trying to do this?
If the SuperSU.zip is on your internal storage then all should have to do is boot to TWRP, tap the "install" button, then find where SuperSU.zip is stored and flash it.
Is that not working?
I am familiar with the usual causes and fixes of this but I've never had this issue myself.
I'm thinking you might not be using the right recovery for your model or you aren't doing something right, something so simple I'm overlooking it.
Sent from my SM-S903VL using Tapatalk
Click to expand...
Click to collapse
Yes that's the problem, when I boot to twrp and tap install there's nothing in the internal storage. The guide I followed says to transfer supersu over mtp while in twrp, but that doesnt work; I keep getting the "device has stopped responding or has been disconnected" error. I downloaded the supersu zip directly on the tablet as well as transferred over mtp while not in twrp and both of those worked. My only guess is that the guide says to transfer supersu over mtp while in twrp for a specific reason that would solve this, but I can't get around that error message.

PleaseHelpMe22 said:
Yes that's the problem, when I boot to twrp and tap install there's nothing in the internal storage. The guide I followed says to transfer supersu over mtp while in twrp, but that doesnt work; I keep getting the "device has stopped responding or has been disconnected" error. I downloaded the supersu zip directly on the tablet as well as transferred over mtp while not in twrp and both of those worked. My only guess is that the guide says to transfer supersu over mtp while in twrp for a specific reason that would solve this, but I can't get around that error message.
Click to expand...
Click to collapse
It doesn't matter how you get it transferred, just as long as it gets there. Do you have an extra card slot? If so, put it on the extsdcard and flash it in TWRP from there, or if you have a USB drive that can connect to the device you might be able to flash it in TWRP from the USB.
Sent from my SM-S903VL using Tapatalk

Droidriven said:
It doesn't matter how you get it transferred, just as long as it gets there. Do you have an extra card slot? If so, put it on the extsdcard and flash it in TWRP from there, or if you have a USB drive that can connect to the device you might be able to flash it in TWRP from the USB.
Sent from my SM-S903VL using Tapatalk
Click to expand...
Click to collapse
It worked from the sd card. Thanks!