Hi everyone I first want to sincerely thank everyone that will answer to try to help me solve these problems with my nexus.
So the other day my nexus suddenly decided to stop being awesome and it started to be a pain in the ass instead.
When I turn it on it just keeps loading the booting animation of android 6 marshmallowand it never turn on. I identified this problem as a "bootloop" and i tried solving it anyway but it's being really hard and i'm almost getting no results.
I first tried with going into recovery mode. from the fastboot the recovery mode won't start, pops out a died android with a red triangle on it. Pressing volume up and power from that screen got me to another menu. I tried wiping the cache and wipe all the datas/ factory resets but no results. the crappy marshmallow animation goes on till forever.
On the screen that follow the dead android appears the error: E: failed to mount /cache (Invalid argument).
After that i tried with the famous sdk tools.
I am able to unlock the bootloader with the command [fastboot oem unlock]. however after unlocking it, if I turn the phone off and on again it auto lock itself.
i tried to flash a recovery image with the command [fastboot flash recovery recovery.img] but it won't flash. I unlock the device first, and then i try to flash the images. it says ok after the sending but on the writing says FAILED <remote: flash write failure>
same things happen flashing anything else (android factory images etc.)
I can't use adb, i d need to put the usb debugging mode from the developer options but since I coulnd't turn it on I don't know how to turn this option on.
So i discovered existed a "download mode"
Apparently for the nexus5 you have to push volume up and then connect it to the usb to enter in it. I tried many times and it just don't go to download mode (is this the correct procedure??)
I installed the last google divers, no results.
I really don't know what to do, do you guys have any ideas about how to save it?
phone details:
hammerhead d821(E) 32GB
hw version- rev 11
bootloader version: hhz12k
Cheers
Mattia
I think your emmc chip has gone bad and that is why you are getting locked bootloader everytime you reboot the phone as it is not able to hold any memory.
I suggest RMA if its in warranty
tiapnn said:
Hi everyone I first want to sincerely thank everyone that will answer to try to help me solve these problems with my nexus.
So the other day my nexus suddenly decided to stop being awesome and it started to be a pain in the ass instead.
When I turn it on it just keeps loading the booting animation of android 6 marshmallowand it never turn on. I identified this problem as a "bootloop" and i tried solving it anyway but it's being really hard and i'm almost getting no results.
I first tried with going into recovery mode. from the fastboot the recovery mode won't start, pops out a died android with a red triangle on it. Pressing volume up and power from that screen got me to another menu. I tried wiping the cache and wipe all the datas/ factory resets but no results. the crappy marshmallow animation goes on till forever.
On the screen that follow the dead android appears the error: E: failed to mount /cache (Invalid argument).
After that i tried with the famous sdk tools.
I am able to unlock the bootloader with the command [fastboot oem unlock]. however after unlocking it, if I turn the phone off and on again it auto lock itself.
i tried to flash a recovery image with the command [fastboot flash recovery recovery.img] but it won't flash. I unlock the device first, and then i try to flash the images. it says ok after the sending but on the writing says FAILED
same things happen flashing anything else (android factory images etc.)
I can't use adb, i d need to put the usb debugging mode from the developer options but since I coulnd't turn it on I don't know how to turn this option on.
So i discovered existed a "download mode"
Apparently for the nexus5 you have to push volume up and then connect it to the usb to enter in it. I tried many times and it just don't go to download mode (is this the correct procedure??)
I installed the last google divers, no results.
I really don't know what to do, do you guys have any ideas about how to save it?
phone details:
hammerhead d821(E) 32GB
hw version- rev 11
bootloader version: hhz12k
Cheers
Mattia
Click to expand...
Click to collapse
OK so ur ennc chip is NOT dead, that little Android with the triangle is stock recovery, which u can do nothing with, ur going to need a PC, preferably running ubuntu or some other form of Linux with adb and fastboot installed, i cam help with that too if u need it, once u get that settled what u need to do is this, download TWRP for ur hammerhead and rename it recovery.img, place it in a folder u have access to. Open a terminal and connect ur nexus to the pc with USB cable, and boot into bootloader. Then type this into the terminal:
cd (folder with recovery.img in it)
fastboot reboot bootloader (this should boot u back into bootloader if ur device is connected right)
fastboot flash recovery recovery.img
fastboot reboot recovery
This will boot u to TWRP in which u can perform a factory reset, if this doesn't work and ur still in a bootloop, download ur fav rom and gaps and flash it, this will take care of everything
And there is no download mode on the nexus that would be bootloader mode, so let me get this right, what system are u on, and did u try manually formatting with ADB? What happens when u do, I would force format cache, system, boot, and userdata and then flash recovery, that might work
Sent from my Nexus 6 using Tapatalk
Hi all,
Last week my MOTO G gone... It was locked in Motorola screen. I let it discharger 0% so many times last week.
My device was bootloader locked, with no USB debugging.
Ok, i search a lot and found some information. I used the bellow link:
https://forum.xda-developers.com/moto-g/help/moto-g-bootup-problem-recovery-mode-t3122492/
I ran bootloader and try recovery option, but got "Boot up failed message"
I did the some steps: unlock bootloader and then I tried flash a rom in fastboot. No error message returns, but the device always stay in unlocked bottloader screen. I used XT1033 5.02, 5.1 roms but without success.
Then... Tried command:
mfastboot flash recovery twrp-3.2.1-0-falcon.img
But when I reboot phone and entered recovery, got "no command" error.
Following my link guide above, I tried the command:
mfastboot boot twrp-3.2.1-0-falcon.img
And success! I finally could enter in TWRP and backup all my data. Good!
But my sdcard is appearing as read only!
I tried:
WIPE option (Wipes Data, Cache and Dalvik),
Advanced WIPE option (the partitions before and Data and Internal Storage ),
and Format Data option - No success
I did all the steps with partition Data mounted and repeated it again unmounted, booting the device in each try.
I tried the option Repair or Change File System (/data is F2fs) and tried to change the partition to EXT4 - no success.
I tried the same commands described in page 7:
https://forum.xda-developers.com/moto-g/help/moto-g-bootup-problem-recovery-mode-t3122492/page7
and got the same results - no success.
I tried to use PUSH command, but it returns error failed to copy <filename> - read only file system.
Please, could you help me? Thanks in advance.
Your phone's eMMC chip probably died. You have no choice but to do a motherboard replacement. Or get just the chip replaced, but it's risky, since it involves resoldering and reballing BGAs.
Those frequent full discharges killed the chip, I suspect.
Since you've got your data backed up, I suggest you try either of these options.
I was able to get the device rooted with the magisk boot image patch method, but I was seeing if I can get twrp?
turboperson123 said:
I was able to get the device rooted with the magisk boot image patch method, but I was seeing if I can get twrp?
Click to expand...
Click to collapse
Could you link me to the method you used for root please?
Sent from my God Mode 8
Hi
I'm highly interested too. Could you share the method please?
Do you manage to install twrp?
Thanks!
Hello,
How do you do to unlock bootloader.I was able to download and patch with magisk the last ROM but I can't flash it !
Please would you tell us how you do that ?
Thanks
here is the link https://forum.xda-developers.com/ge...agisk-root-t3992477/post80692227#post80692227
Thank you !
go to settings and enable developer options, then go to developer options / enable usb debugging and enable oem unlock
then on pc if you have adb and fastboot installed then type adb reboot bootloader
then once the tablet is in fastboot type fastboot oem unlock-go to unlock the bootloader
TWRP 3.3.1-0 TB-X605F Lenovo Smart Tab M10
i used the twrp port from stock recovery method here https://forum.xda-developers.com/android/general/guide-porting-twrp-source-t3843473
"warning this will wipe data, bootloader needs to be unlocked, computer has adb and fastboot installed"
1. download twrp from here http://www.mediafire.com/file/tn7csi4gzm91w7v/twrp-3.3.1-0-X605F.img/file
2. then on the tablet go to settings / Developer mode / usb debugging
3. connect the tablet to pc with usb cable then on the tablet you will see usb debugging authorizations, click on allow always to make the device debuggable
4. on pc launch command prompt then type "adb reboot bootloader" to reboot into bootloader
5. once in bootloader type "fastboot flash recovery "the directory of the twrp-recovery.img" once flashed then type "fastboot reboot"
6. once tablet rebooted type "adb reboot recovery" on pc to reboot into recovery, warning you will see /data mounting errors to fix this on the tablet go to wipe / format data and type yes to format data, then go back to main screen then go to reboot / recovery to reboot back into recovery.
7. on pc download dm-verity-forceencryption zip file here http://www.mediafire.com/file/ndhe4ewlzlffdur/Disable-dm-verity-forceencryption.zip/file then on the tablet go to advanced / adb sideload then swipe it, then on pc type "adb sideload the directory where you put the zip file" once flashed then go to the main screen then go to reboot / system to reboot system
then it should boot up.
Working fine from my side
Turbo, many Thanks!
It works perfectly ! ?
turboperson123 said:
i used the twrp port from stock recovery method here https://forum.xda-developers.com/android/general/guide-porting-twrp-source-t3843473
"warning this will wipe data, bootloader needs to be unlocked, computer has adb and fastboot installed"
1. download twrp from here http://www.mediafire.com/file/tn7csi4gzm91w7v/twrp-3.3.1-0-X605F.img/file
2. then on the tablet go to settings / Developer mode / usb debugging
3. connect the tablet to pc with usb cable then on the tablet you will see usb debugging authorizations, click on allow always to make the device debuggable
4. on pc launch command prompt then type "adb reboot bootloader" to reboot into bootloader
5. once in bootloader type "fastboot flash recovery "the directory of the twrp-recovery.img" once flashed then type "fastboot reboot"
6. once tablet rebooted type "adb reboot recovery" on pc to reboot into recovery, warning you will see /data mounting errors to fix this on the tablet go to wipe / format data and type yes to format data, then go back to main screen then go to reboot / recovery to reboot back into recovery.
7. on pc download dm-verity-forceencryption zip file here http://www.mediafire.com/file/ndhe4ewlzlffdur/Disable-dm-verity-forceencryption.zip/file then on the tablet go to advanced / adb sideload then swipe it, then on pc type "adb sideload the directory where you put the zip file" once flashed then go to the main screen then go to reboot / system to reboot system
then it should boot up.
Click to expand...
Click to collapse
Good job, @turboperson123 ! @Monpseud0 pointed me over here.
I've got some time this week & I'm going to start on a version that will handle encryption. You can find the device tree and code here. I've included a link to this thread.
I bricked my device. Rebooting the system from TWRP only gets me back into TWRP.
Am afraid I will have to flash a new rom.
Does anyone know where to download a working rom for TB-X065F
Help much appreciated.
stefankkl said:
I bricked my device. Rebooting the system from TWRP only gets me back into TWRP.
Am afraid I will have to flash a new rom.
Does anyone know where to download a working rom for TB-X065F
Help much appreciated.
Click to expand...
Click to collapse
Easiest thing to do is use LMSA. It's available on Lenovo's support page: https://pcsupport.lenovo.com/au/en/...r-list/component?name=Software and Utilities.
Still unable to re-flash stock ROM
Yahoo Mike said:
Easiest thing to do is use LMSA. It's available on Lenovo's support page:
Click to expand...
Click to collapse
I can download the ROM through LMSA, but not flash it.
Trying to do so yields a "complete" message from LMSA after only a few seconds, but then rebooting the device only gets me back into TWRP.
I also tried to flash all system_xx.img from the ROM using fastboot flash system system_xx.img ,
and to flash all vendor_xx.img from the ROM using fastboot flash vendor vendor_xx.img.
Fastboot performs this operation, but then rebooting gets me back into TWRP again.
Trying to reboot the system from TWRP yields the message "no system installed"
Help much appreciated.
stefankkl said:
I can download the ROM through LMSA, but not flash it.
Trying to do so yields a "complete" message from LMSA after only a few seconds, but then rebooting the device only gets me back into TWRP.
I also tried to flash all system_xx.img from the ROM using fastboot flash system system_xx.img ,
and to flash all vendor_xx.img from the ROM using fastboot flash vendor vendor_xx.img.
Fastboot performs this operation, but then rebooting gets me back into TWRP again.
Trying to reboot the system from TWRP yields the message "no system installed"
Help much appreciated.
Click to expand...
Click to collapse
Tough one! Try this. It will wipe your data partition, though.
If it will let you, power down the tablet for about 10mins. Then boot into TWRP. Go to "Wipe" and swipe for Data/Factory Reset. Reboot.
If the M10 still won't boot, in TWRP re-format Data (by typing 'yes' under Wipe->Format Data), and wipe cache and Dalvik Cache. I think dalvik is under Wipe->Advanced. Factory reset again. Reboot.
As an absolute last resort, you might try fixing permissions in TWRP under "Advanced". But I don't think that's going to do much, because you haven't booted the ROM successfully yet.
Hope one of these works for you. Let us know what worked for you. If nothing works, PM me and we'll try some other things.
Lenovo Logo THEN black screen -- DEAD
turboperson123 said:
6. once tablet rebooted type "adb reboot recovery" on pc to reboot into recovery, warning you will see /data mounting errors to fix this on the tablet go to wipe / format data and type yes to format data, then go back to main screen then go to reboot / recovery to reboot back into recovery.
7. on pc download dm-verity-forceencryption zip file here then on the tablet go to advanced / adb sideload then swipe it, then on pc type "adb sideload the directory where you put the zip file" once flashed then go to the main screen then go to reboot / system to reboot system
then it should boot up.
Click to expand...
Click to collapse
I followed the instructions but on the last step of rebooting to system the device restarts, shows the Lenovo logo then it goes to a black / blanks screen. It appears to have shut down. I must hold the power button for several seconds before it wakes up (or restarts?) and does this all over again -- shows the Lenovo logo then black screen.
For the record the device was already rooted with Magisk. I was just trying to do a TWRP backup but found /data mounting errors so tried following steps 6 & 7. At the moment the device refuses to boot up. I am unable to get back into Recovery Mode. The ONLY thing i can do is get into FASTBOOT mode and issue commands from CLI.
The following hardware key combos produce the same results -- tablet turns on to show the Lenovo logo, after a few seconds the screen goes black (the device appears to have turned off):
x Power key
x Power Key + Volume Down
x Power Key + Volume Up
x Power Key + Volume Up + Volume Down
** Release of keys is done once Lenovo logo appears
Any ideas?
UPDATE
I went ahead and performed: fastboot flash boot boot.img << the boot.img was the earlier patched magisk image i used to get the rooted working tablet.
After performing the above the tablet turned on and is now showing the Lenovo logo however it does nothing else --- it remains on the logo forever. I am able to get into TWRP recovery. I went ahead and wiped Dalvik, Cache, and Data. Rebooted to System but still it is stuck on the Lenovo Logo.
The device if fully charged.
crosis99 said:
I followed the instructions but on the last step of rebooting to system the device restarts, shows the Lenovo logo then it goes to a black / blanks screen. It appears to have shut down. I must hold the power button for several seconds before it wakes up (or restarts?) and does this all over again -- shows the Lenovo logo then black screen.
Any ideas?
Click to expand...
Click to collapse
You could try recovering the tablet with LMSA. See this post. You'll lose all your existing data and setup on the tablet, though.
Not sure what went wrong for you. Do you have a TB-X605F with Snapdragon 450 SOC? The existing TWRP is only for the SDA450. I'm working on one for the M10s with SDA429.
Yahoo Mike said:
You could try recovering the tablet with LMSA. See this post. You'll lose all your existing data and setup on the tablet, though.
Not sure what went wrong for you. Do you have a TB-X605F with Snapdragon 450 SOC? The existing TWRP is only for the SDA450. I'm working on one for the M10s with SDA429.
Click to expand...
Click to collapse
Thanks for the response. Yes mine has the Snapdragon 450. I will investigate the LMSA. Been messing around all day but made no progress -- not even QPST is working out.
I went through the process of using Smali and Magisk on my phone. Everything was good. Since I was doing this for PoGo, I decided to "clean-up" by disabling some of the settings. I turned off OEM unlocking, reboot the phone in to the bootloader and did a adb flashing lock. I rebooted the phone and not get the error "Can't find a valid operating system". I can boot in to the bootloader with the power button + down volume but I can't unlock the bootloader with ADB and fastboot.
Am I screwed?
I'm also not able to boot in to recovery. I also get the error "Can't find valid operation system"
Well probably too late to reply.
I'm not an expert, i'm newbee but when i installed my custom rom i met some problems to reboot. I solved them by re-installing firm operating system. You can do it by connecting your device with a good usb cable and go to google website : android flash tool
This will reinstall a new an clean system (but erase your data if not saved before).
After that you can install a custom rom from the begining.
As title says, by mistake I have wiped everything: Dalvik Cache, System, Data, Internal Storage, Cache, Micro SD. Everything.
How did this happen? Well, yesterday I ran into some problems after first rooting my 7PRO on Friday night. I couldn't get past the unlocked bootloader message. So eventfully I just decided to boot into TWRP and wipe the device. Not understanding what I was doing I chose wipe and ticked all the above listed items. I should have just done a factory reset I'm aware now.
I can't get past the fastboot screen. I select recovery mode and it just sends be straight back to fastboot. I figured I would just sideload a custom rom through TWRP, but I cant get back to it again. I cant install TWRP because my phone isn't detected on my computer now.
I'm hoping this is fixable. Because I'm fairly certain I cant get back from this. Maybe someone has some fixes. Cheers
Is the phone detected in fastboot mode?
Install the system wide adb-fastboot drivers.
[TOOL]Minimal ADB and Fastboot [2-9-18]
Introduction ADB and Fastboot are arguably two of the most indispensable tools used when working with Android devices. If you really want to modify, debug, and tweak along with their countless uses in rooting, and other procedures ADB and...
forum.xda-developers.com
If you can get the phone to be detected in fastboot mode you could send some commands to reboot into recovery mode or try flashing twrp again