Database Users

[Q] fastboot - no boot or img file

hey guys i'm having some trouble. i just got the nexus (it's my first smartphone, ever) and i've tried to hit the ground running. here's what i've done to the phone so far.
i got all the drivers running on my win7 machine and also installed the android SDK folder onto C: as was described in this thread: http://forum.xda-developers.com/showthread.php?t=878786
i then unlocked the bootloader using the above guide as well. when I power on the phone using UP+POWER it says UNLOCKED.
I then proceeded to follow this guide: http://forum.xda-developers.com/showthread.php?t=875875
i used ADB to flash the clockwork crespo recovery. i then used fastboot to install Superuser.
at that point i had an unlocked bootloader, clockword recovery image and superuser permissions.
i then saw that the 2.3.1 update had been released. i wanted to learn how to tackle that so i started reading up. i noticed that people were using ROM Manager and Titanium. I got titanium and installed the BusyBox addon and it allowed me to do a full Batch Backup of all my programs, etc. i've got the 50MB or so backup folder on my PC now.
anyway, i then messed with Rom Manager. I installed the 3.0.0.0 ClockworkMod Recovery and everything went smoothly. now this is where my troubles begin.
when i go to Download ROM all i get is a Free Stuff area.
when i go to Check for ROM Updates it tells me my device isnt set up for OTA updates.
those are just minor issues.
this is the big and scary issue i have:
when i click on reboot to recovery, it takes me to the same screen that i go to when i power on with VOLUME UP+POWER. it doesnt take me to the recovery screen that i see in various youtube videos. instead, i'm at the main screen where it says UNLOCKED and i have 4 choices (reboot bootloader, recovery, reboot, power off). and on the very top in RED letters it says fastboot - no boot or img file. <-- this is the part that makes me nervous. If i manually power down the phone and boot to fastboot and click recovery, it just goes back to this same screen and says fastboot - no boot or img file. when i first rooted the phone, clicking recovery actually took me to a different screen where i was able to load up superuser.zip and install it.
did i accidetnally delete something that i wasnt supposed to? did installing ROM manager mess something up? i typically dont do anything until i confirm that i am supposed to. i think the problem is that i dont yet know how one thing i do on the phone affects another. i'm guessing when i used rom manager to update the CWmod it changed some folders/files? i dunno!
otherwise, the phone works fine and there are no glitches or hiccups or crashes. So if someone can please take a moment to just explain to me what i did wrong or what i failed to do i'd really, really appreciate it.

you don't have a recovery partition. Either flash one over manually using fastboot, or boot up and try to use ROM Manager to flash CWR.

when you say flash one over using fastboot, do you mean put my phone using VOLUME UP + POWER, connect usb cable, then use command line to do this:
fastboot flash recovery recovery-clockwork-crespo.img
?

kramer987 said:
when you say flash one over using fastboot, do you mean put my phone using VOLUME UP + POWER, connect usb cable, then use command line to do this:
fastboot flash recovery recovery-clockwork-crespo.img
?
Click to expand...
Click to collapse
yes, just follow the examples in http://forum.xda-developers.com/showthread.php?t=875875

kramer987 said:
when you say flash one over using fastboot, do you mean put my phone using VOLUME UP + POWER, connect usb cable, then use command line to do this:
fastboot flash recovery recovery-clockwork-crespo.img
?
Click to expand...
Click to collapse
Yes, 'cept it will be "fastboot flash recoveryrecovery-clockwork-3.0.0.0-crespo.img" without the quotes now.
But does it say that you're missing a boot.img or recovery.img?
Also, the "not set up for OTA" thing isn't for official OTAs. Some developers have made their custom ROMs capable of being updated that way.

unremarked said:
Yes, 'cept it will be "fastboot flash recoveryrecovery-clockwork-3.0.0.0-crespo.img" without the quotes now.
But does it say that you're missing a boot.img or recovery.img?
Also, the "not set up for OTA" thing isn't for official OTAs. Some developers have made their custom ROMs capable of being updated that way.
Click to expand...
Click to collapse
thank you luxferro and unremarked. i did it and it works perfectly. i am now able to access clockworkmod recovery 3.0.0.0. next step is backup my existing ROM and also to figure out how to put the OTA 2.3.1 on and restore all my data
oh and unremarked: it basically said no boot or img file and thats it after i would click on recovery or reboot to recovery trhough rom manager. it was just in red at the top. but now it takes me to the ClockworkMod Recovery

[Q] MT3G bad recovery flash, stuck

Hi,
I have a mt3g, TMobile. CyanogenMod 6.1.0, ClockWork recovery. Used ROM Managed to flash Amon Ra recovery, since I needed to re-calibrate the battery. It asked me to pick phone model, picked Ion/MyTouch 3G. After reboot:
- Stuck on splash screen if I try to go to recovery
- When booted up - a bunch of force closures, keeps playing a ringtone over and over and...
Everything I tried to do through ROM Manager didn't help.
Any help is appreciated.
Thanks.

truss said:
Hi,
I have a mt3g, TMobile. CyanogenMod 6.1.0, ClockWork recovery. Used ROM Managed to flash Amon Ra recovery, since I needed to re-calibrate the battery. It asked me to pick phone model, picked Ion/MyTouch 3G. After reboot:
- Stuck on splash screen if I try to go to recovery
- When booted up - a bunch of force closures, keeps playing a ringtone over and over and...
Everything I tried to do through ROM Manager didn't help.
Any help is appreciated.
Thanks.
Click to expand...
Click to collapse
Do you still have root? If you can get into ROM manager, reflash clockwork recovery, then wipe cache, dalvik, and run a fix permissions. That should get you back up and running long enough to try again to flash amon ra.
Not sure if the oem spl will let you fastboot flash a new recovery but that's your most reliable bet.
It sounds like it might be time to do a full wipe and reflash anyway. Have you heard of Ohsaka's SuperWipe?

I tried reflashing Clockwork through ROM Manager. It says "root granted", "clockwork flashed" immediately. When I try to boot into recovery - I get stuck on green MyTouch screen forever. Battery pull is the only way out.
I guess the problem is that I cannot get to any recovery anymore. Any ideas?

Do you have fastboot. If so you can flash recovery from there.

kodjo said:
Do you have fastboot. If so you can flash recovery from there.
Click to expand...
Click to collapse
Can I do that through adb shell? I don't think I built fastboot.

truss said:
Can I do that through adb shell? I don't think I built fastboot.
Click to expand...
Click to collapse
Fastboot is a different mode. Boot into hboot (vol down + power I think) and then select fasboot from the menu. Then plug into computer. From a command prompt type:
fastboot flash recovery recovery.img
The recovery needs to be in your tools or platform-tools folder and named recovery.img for this to work. Otherwise it would be fastboot flash recovery c:\path\to\recoveryfilename.img. Make sense?
Link to Amon_Ra Recovery 1.7 for MT3G 32B. http://www.filefactory.com/file/caa48b0/n/recovery-RA-sapphire-v1.7.0G-cyan.img
Otherwise keep trying with ROM Manager. Might take a few attempts to get recovery to stick, even temporarily. It did for me. Flash once then flash again. There's also an option in ROM Manager settings to erase recovery prior to flashing. Check that and see if it helps.

Phateless said:
Fastboot is a different mode. Boot into hboot (vol down + power I think) and then select fasboot from the menu. Then plug into computer. From a command prompt type:
fastboot flash recovery recovery.img
The recovery needs to be in your tools or platform-tools folder and named recovery.img for this to work. Otherwise it would be fastboot flash recovery c:\path\to\recoveryfilename.img. Make sense?
Link to Amon_Ra Recovery 1.7 for MT3G 32B.
Otherwise keep trying with ROM Manager. Might take a few attempts to get recovery to stick, even temporarily. It did for me. Flash once then flash again. There's also an option in ROM Manager settings to erase recovery prior to flashing. Check that and see if it helps.
Click to expand...
Click to collapse
I appreciate your help.
When I try to flash recovery.img, I get this: error: cannot load `recovery.img`
When I try running fastboot with absolute path, I get: FAILED (remote: not allow). Is there a way to fix this?
Tried flashing through ROM Manager many times - no result.

truss said:
I appreciate your help.
When I try to flash recovery.img, I get this: error: cannot load `recovery.img`
When I try running fastboot with absolute path, I get: FAILED (remote: not allow). Is there a way to fix this?
Tried flashing through ROM Manager many times - no result.
Click to expand...
Click to collapse
Interesting... Where are you trying to flash recovery.img and getting that error? What method are you using? Are you sure you have the path to recovery.img correct?
As for fastboot, you need an S-OFF/engineering spl so I guess that's out.
What happens if you use Terminal Emulator?
su
flash_image recovery sdcard/recovery.img
Does that work? Keep at it, you have root so not all is lost. Eventually you will get there.
EDIT - make sure you rename the recovery to "recovery.img" and leave it on the root of your sdcard for my italicized instructions above to work. What ROM are you running? If flash_image doesn't work I need to know which version of the binary to give you.

Phateless said:
Interesting... Where are you trying to flash recovery.img and getting that error? What method are you using? Are you sure you have the path to recovery.img correct?
As for fastboot, you need an S-OFF/engineering spl so I guess that's out.
What happens if you use Terminal Emulator?
su
flash_image recovery sdcard/recovery.img
Does that work? Keep at it, you have root so not all is lost. Eventually you will get there.
EDIT - make sure you rename the recovery to "recovery.img" and leave it on the root of your sdcard for my italicized instructions above to work. What ROM are you running? If flash_image doesn't work I need to know which version of the binary to give you.
Click to expand...
Click to collapse
Thank you very much.
Running flash_image recovery command using adb shell a few times did the trick. I was able to boot to Amon RA recovery, wipe and flash CyanogenMod 6.1.0.

truss said:
Thank you very much.
Running flash_image recovery command using adb shell a few times did the trick. I was able to boot to Amon RA recovery, wipe and flash CyanogenMod 6.1.0.
Click to expand...
Click to collapse
Nice! Glad you got it sorted out.

[Q] Nexus 7 2012 -- Recovery won't flash - Please help!

Good morning,
I followed the tutorial here on XDA on how to basically factory reset my Nexus 7. Unfortunately, while going through all the steps I also deleted my recovery. Now I am unable to flash any recovery back on my device. I have tried flashing Clockwork, TWRP and even Google Stock recovery, but it won't work. Neither flashing via Nexus 7 toolkit nor by hand was successful, instead it always returns the following error message:
Booting into Android using an Insecure Boot Image..
cannot load "root\boot-insecure-.img' : No error
Now my Nexus 7 is in some random state, since Android 4.2.2 is installed, but rooting via the Toolkit returns the same message when it comes to the point of flashing a recovery. Then it simply skips the remaining steps and does not install the superuser app. I also downloaded and tried using the ROM Manager, but since root-access is missing, it can't do anything either.
Do you guys have any solution to this?
Help is very much appreciated!
Thanks!

marcfeld said:
Good morning,
I followed the tutorial here on XDA on how to basically factory reset my Nexus 7. Unfortunately, while going through all the steps I also deleted my recovery. Now I am unable to flash any recovery back on my device. I have tried flashing Clockwork, TWRP and even Google Stock recovery, but it won't work. Neither flashing via Nexus 7 toolkit nor by hand was successful, instead it always returns the following error message:
Booting into Android using an Insecure Boot Image..
cannot load "root\boot-insecure-.img' : No error
Now my Nexus 7 is in some random state, since Android 4.2.2 is installed, but rooting via the Toolkit returns the same message when it comes to the point of flashing a recovery. Then it simply skips the remaining steps and does not install the superuser app. I also downloaded and tried using the ROM Manager, but since root-access is missing, it can't do anything either.
Do you guys have any solution to this?
Help is very much appreciated!
Thanks!
Click to expand...
Click to collapse
Though toolkits save a lot of time, I always prefer to do stuff the manual way and I suggest you do the same. To flash the recovery do the following steps
1) a) if you are running Windows open cmd as administrator and CD into a folder containing adb and fastboot .exes
b) copy paste a downloaded recovery image in the same folder and rename it to recovery.img for simplicity.
2) boot into boot loader by pressing power volume down and volume up all together after the device is turned off
3) in bootloader enter the fastboot mode and in cmd on PC type
Code:
fastboot devices
At this moment your device should turn up in the command prompt.if it doesn't then try installing the Asus drivers and repeat the steps above carefully.
4) once all that is over type
Code:
fastboot flash recovery recovery.img
And then the recovery must be flashed . you will get an output on cmd with the time taken to flash it too .
Then reboot into recovery and enjoy.

A succinct summary, Red Devil.
I always maintain, on a my Windows laptop, a folder called FastBootAdb, that contains the following files...
fastboot.exe
adb.exe
AdbWinApi.dll (needed by Windows)
AdbWinUsbApi.dll (needed by Windows)
If I wish to flash a new recovery.img (or a new boot.img - useful for certain kernels, that consists of nothing but a boot.img, like franco for example. Most custom kernels though, consist of more than just a boot.img, and need to flashed via TWRP or CWM, and can't just be fastboot flashed).
Anyway... I just copy the new recovery into this folder, rename it to recovery.img and run the fastboot command accordingly...
Code:
fastboot flash recovery recovery.img
...similarly with the boot partition...
Code:
fastboot flash boot boot.img
To be honest, I'm puzzled why people feel the need to overcomplicate this very simple procedure with toolkits.
Rgrds,
Ged.

Thanks a million guys!
I will try this as soon as I get home tonight and let you know.

nourtsW escape
This did the trick!
Thanks again guys!

marcfeld said:
This did the trick!
Thanks again guys!
Click to expand...
Click to collapse
Glad you got it sorted.
With Android, there's always 'more than one way to skin a cat!'.
Rgrds,
Ged.

GedBlake said:
Glad you got it sorted.
With Android, there's always 'more than one way to skin a cat!'.
Rgrds,
Ged.
Click to expand...
Click to collapse
I am so relieved, because I thought I had bricked it...

GedBlake said:
A succinct summary, Red Devil.
I always maintain, on a my Windows laptop, a folder called FastBootAdb, that contains the following files...
fastboot.exe
adb.exe
AdbWinApi.dll (needed by Windows)
AdbWinUsbApi.dll (needed by Windows)
If I wish to flash a new recovery.img (or a new boot.img - useful for certain kernels, that consists of nothing but a boot.img, like franco for example. Most custom kernels though, consist of more than just a boot.img, and need to flashed via TWRP or CWM, and can't just be fastboot flashed).
Anyway... I just copy the new recovery into this folder, rename it to recovery.img and run the fastboot command accordingly...
Code:
fastboot flash recovery recovery.img
...similarly with the boot partition...
Code:
fastboot flash boot boot.img
To be honest, I'm puzzled why people feel the need to overcomplicate this very simple procedure with toolkits.
Rgrds,
Ged.
Click to expand...
Click to collapse
ive done this exactly step by step and i getthe system cannot find the specified path i made a folder inside the windows folder i named it recovery in the command prompt i did cd windows then cd recovery then i typed fastboot devicesthen it said that

Help! Nexus 7 won't accept recovery flash image
I've tried all the above. I can get to the command prompt, and fastboot devices sees my device. I input the above commands to reflash, it starts with message "sending 'recovery' <xxx.xkb>' then nothing. It just sits there until I reset or reboot my nexus 7. Can anyone help?

updated to 4.4.1 stuck in boot animation!

Installed 4.4.1 via TWRP this morning, but it is stuck in reboot. Just keeps doing the colliding circles!
Tried rebooting a couple of times. Can get to fastboot, But device isn't seen by adb, and fastboot only shows start (no recovery option)
Any ideas at this point?

RedBullet said:
Installed 4.4.1 via TWRP this morning, but it is stuck in reboot. Just keeps doing the colliding circles!
Tried rebooting a couple of times. Can get to fastboot, But device isn't seen by adb, and fastboot only shows start (no recovery option)
Any ideas at this point?
Click to expand...
Click to collapse
I would recommend flashing the 4.4 stock factory image from here in fastboot mode. Then once your device is booting up properly again I would recommend taking a look at this guide to properly install the 4.4.1 update.

You MUST either side load or safer still, un-root(if rooted) and flash stock recovery and sideload and then re-flash custom recovery and re-root if needed.
If you are able to get to fastboot:
Fastboot flash recovery recovery.img ( use stock)
Fastboot reboot-bootloader
go into to stock recovery - wait for dead droid, one you see him, go into recovery by holding volume+ and power at same time
follow the orange instructions to sideload via adb - which should now work
reboot and validate all is well
reboot into bootloader and re-flash your custom recovery and root (if needed)
Enjoy.

planet_x69 said:
You MUST either side load or safer still, un-root(if rooted) and flash stock recovery and sideload and then re-flash custom recovery and re-root if needed.
If you are able to get to fastboot:
Fastboot flash recovery recovery.img ( use stock)
Fastboot reboot-bootloader
go into to stock recovery - wait for dead droid, one you see him, go into recovery by holding volume+ and power at same time
follow the orange instructions to sideload via adb - which should now work
reboot and validate all is well
reboot into bootloader and re-flash your custom recovery and root (if needed)
Enjoy.
Click to expand...
Click to collapse
Thanks, I eventually got it. I was really puzzled that I couldn't select recovery from the bootloader. All set now though, thanks!

I hae also updated to 4.4.2 but now my N10 is stuck at the Google start page. Please help?

jalize said:
I hae also updated to 4.4.2 but now my N10 is stuck at the Google start page. Please help?
Click to expand...
Click to collapse
If you mean stuck at boot animation, then I suspect you used TWRP to flash?
I found that TWRP was not able to clear caches, so I use CWM instead. Worked like a champ...

RedBullet said:
If you mean stuck at boot animation, then I suspect you used TWRP to flash?
I found that TWRP was not able to clear caches, so I use CWM instead. Worked like a champ...
Click to expand...
Click to collapse
No I used the adb sideload command for the OTA. That all went well but now I'm stuck at the google page even before the animations begin!

jalize said:
No I used the adb sideload command for the OTA. That all went well but now I'm stuck at the google page even before the animations begin!
Click to expand...
Click to collapse
Hold volume up and power to get it to recycle, and immediately hold all three buttons down to get to bootloader. Try clearing your caches from recovery

RedBullet said:
Hold volume up and power to get it to recycle, and immediately hold all three buttons down to get to bootloader. Try clearing your caches from recovery
Click to expand...
Click to collapse
Tried that already, still stuck at Google page before animations. Everything is stock on this tablet with root.

jalize said:
Tried that already, still stuck at Google page before animations. Everything is stock on this tablet with root.
Click to expand...
Click to collapse
Hi,
Try flashing it fresh stock again, factory reset your device from recovery, download the stock image file from here, untar it, then unzip the zip inside the tar and you'll get some files (.img). Copy those files to your fastboot folder and then open a cmd there. (Guessing that you're using Windows)
Code:
fastboot flash system system.img
fastboot flash boot boot.img
fastboot flash cache cache.img
If you're using Linux, do the same, but instead of only fastboot use:
Code:
sudo ./fastboot
Then boot it. I had the same problem when I updated mine to 4.4.1, but I did one thing a little different... Instead of fully "stocking" it again, I flashed back 4.3, flashed 4.4 OTA and then let it boot, without wiping my data, after all it was running like this before. Worked. But as I'm unsure of your situation I think it's more secure and easier to fully stock it again.
Hope this helps,
~Lord
PS.: Remember to put your device in fastboot mode!

Help please can't see my phone in adb

I've had my Essential two weeks i was on 8.1 beta.Today i unlocked the boot loader.Then installed twrp while in twrp i side loaded magisk.I went back to fastboot then hit start .The phone just went into a bootloop.I Was able to go back to twrp 2 times but now i can't get back to any type of recovery.I Can get back to fastboot mode ishow all the info and secure boot says yes and device state unlocked.My pc see essential phone fastboot in the device manager but i can't get adb to see it .Can anyone help me ?

forgot something
looks like i skipped this part . Once you're in TWRP, install the stock boot image and then the Magisk/SuperSU zip.Is there anything i can do?

videodave1 said:
I've had my Essential two weeks i was on 8.1 beta.Today i unlocked the boot loader.Then installed twrp while in twrp i side loaded magisk.I went back to fastboot then hit start .The phone just went into a bootloop.I Was able to go back to twrp 2 times but now i can't get back to any type of recovery.I Can get back to fastboot mode ishow all the info and secure boot says yes and device state unlocked.My pc see essential phone fastboot in the device manager but i can't get adb to see it .Can anyone help me ?
Click to expand...
Click to collapse
adb only works while phone is booted into system so nothing wrong there. If you're in the bootloader menu where you see that the status of your device is unlocked then you're already in fastboot mode. Just flash twrp again and the sideload stock 8.1 beta boot image (you can probably find it on xda), sideload magisk too. Go into install and press flash image file and find the stock boot image and then go into install again and change to flash .zip and flash magisk. After that, reboot into system.

WOW thank you so much'
Arju said:
adb only works while phone is booted into system so nothing wrong there. If you're in the bootloader menu where you see that the status of your device is unlocked then you're already in fastboot mode. Just flash twrp again and the sideload stock 8.1 beta boot image (you can probably find it on xda), sideload magisk too. Go into install and press flash image file and find the stock boot image and then go into install again and change to flash .zip and flash magisk. After that, reboot into system.
Click to expand...
Click to collapse
I was able to flash twrp i'll try the rest when i get home from work

sideloading stock img
videodave1 said:
I was able to flash twrp i'll try the rest when i get home from work
Click to expand...
Click to collapse
Do i need it to be zipped I've tried it as image that i downloaded from xda and I've tried a zip i got from Essential neither are working?

zip file
videodave1 said:
Do i need it to be zipped I've tried it as image that i downloaded from xda and I've tried a zip i got from Essential neither are working?
Click to expand...
Click to collapse
When i try i get invalid file format. This is using a zip i got from Essential.

Stuck twrp says no os installed . But i did learn how to push files.

just trying to get back to stock now 

videodave1 said:
just trying to get back to stock now 
Click to expand...
Click to collapse
https://forum.xda-developers.com/essential-phone/development/stock-7-1-1-nmj20d-t3701681

thanks been there tried the Oreo beta that is what i was on when i started and tried the 1st build before the betas i get an error on both i'll try to download them on another pc my phone does show up when i type fastboot devices now just need an os now .

Okay got back to 8.1 bootloader still unlocked twrp not install and i don't have root.I may just wait until P comes out.I'll try and learn more about adb. Thanks for your help Arju.

thanks everyone.

videodave1 said:
Okay got back to 8.1 bootloader still unlocked twrp not install and i don't have root.I may just wait until P comes out.I'll try and learn more about adb. Thanks for your help Arju.
Click to expand...
Click to collapse
No problem. Thank you very much for the donation, that was really kind of you. Hey I'm sure you'll get the hang of it before android P drops. you did figure out what went wrong all by yourself so get a hold of the right boot.img and the rest is exactly as how you did it in the first place but flash the boot.img before magisk. Let me know if you want to give it a dive again.

I'm on 8.1 boot loader unlocked and ready to try to root again .Thanks for the help

This is the closest thread i could find to what is happening to my PH-1.
Like videodave1 I 'was' running the latest stock 8.1 and have my bootloader unlocked. In trying to root the phone I did this:
flash boot flash boot twrp.img
adb shell twrp sideload
adb sideload magisk.zip
All installations went well, but when trying to reboot from twrp it forced me to install the app. After that the phone went into boot loop.
* Note how I didn't sideloaded the Oreo 8.1 image before magisk.
By pressing all 3 buttons I can get the phone to reboot and releasing the volume up I can get to Fastboot. Just volume down and power doesn't work.
The problem now is that adb and fastboot no longer recognise the phone. adb devices just gives an empty list and fastboot only shows < waiting for device >
Trying to go into Recovery mode doesn't work either. Power off doesn't work and Restart bootloader, well, restarts the bootloader.
It might be relevant to mention that I'm running adb and fastboot from Terminal in a Mac and that this is my very first and frustrated attempt to root any phone.
For reference this is what the FastBoot Mode brings:
PRODUCT_NAME - Mata
VARIANT - OPENUS
BOOTLOADER VERSION - mata-aad8ac4
BASEBAND VERSION - 2.0.C4-M1.3.1
SECURE BOOT - yes
DEVICE STATE - unlocked
I might have to just resign myself to the ordinary land of unlocked full stock phones
Thanks very much

avocom said:
This is the closest thread i could find to what is happening to my PH-1.
Like videodave1 I 'was' running the latest stock 8.1 and have my bootloader unlocked. In trying to root the phone I did this:
flash boot flash boot twrp.img
adb shell twrp sideload
adb sideload magisk.zip
All installations went well, but when trying to reboot from twrp it forced me to install the app. After that the phone went into boot loop.
* Note how I didn't sideloaded the Oreo 8.1 image before magisk.
By pressing all 3 buttons I can get the phone to reboot and releasing the volume up I can get to Fastboot. Just volume down and power doesn't work.
The problem now is that adb and fastboot no longer recognise the phone. adb devices just gives an empty list and fastboot only shows < waiting for device >
Trying to go into Recovery mode doesn't work either. Power off doesn't work and Restart bootloader, well, restarts the bootloader.
It might be relevant to mention that I'm running adb and fastboot from Terminal in a Mac and that this is my very first and frustrated attempt to root any phone.
For reference this is what the FastBoot Mode brings:
PRODUCT_NAME - Mata
VARIANT - OPENUS
BOOTLOADER VERSION - mata-aad8ac4
BASEBAND VERSION - 2.0.C4-M1.3.1
SECURE BOOT - yes
DEVICE STATE - unlocked
I might have to just resign myself to the ordinary land of unlocked full stock phones
Thanks very much
Click to expand...
Click to collapse
Even though your phone does not show up its there wipe everything.Fallow what Arju said in his post.I got back to stock then took the 8.1 update i'm not rooted but my bootloader is still unlocked.Oh make sure you unlock critical

videodave1 said:
Fallow what Arju said in his post.
Click to expand...
Click to collapse
Thanks for coming back to me. I really appreciate it.
Arju said:
Just flash twrp again and the sideload stock 8.1 beta boot image (you can probably find it on xda), sideload magisk too.
Click to expand...
Click to collapse
I might be missing something hopefully obvious here. How can I flash twrp again if I my computer can't see the phone. With the USB phone plugged in and in the FastBoot screen I enter into Terminal:
fastboot flash boot twrp.img
and I get:
< waiting for any device >
How do I flash it from the FastBoot screen? BTW, going to Recovery mode just hangs at the Essential logo.
Thanks

avocom said:
Thanks for coming back to me. I really appreciate it.
I might be missing something hopefully obvious here. How can I flash twrp again if I my computer can't see the phone. With the USB phone plugged in and in the FastBoot screen I enter into Terminal:
fastboot flash boot twrp.img
and I get:
< waiting for any device >
How do I flash it from the FastBoot screen? BTW, going to Recovery mode just hangs at the Essential logo.
Thanks
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are you able to get to the bootloader menu? where it says start on the top.

Arju said:
are you able to get to the bootloader menu? where it says start on the top.
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Thanks Arju. If you are referring to the FastBoot menu where you can use the up and down volume keys to select Start, Restart Bootloader, Recovery mode and Power off Yes, but not much else unfortunately.
If I select Recovery mode I don't go to the screen with the blue buttons from twrp.
Thanks

avocom said:
Thanks Arju. If you are referring to the FastBoot menu where you can use the up and down volume keys to select Start, Restart Bootloader, Recovery mode and Power off Yes, but not much else unfortunately.
If I select Recovery mode I don't go to the screen with the blue buttons from twrp.
Thanks
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Click to collapse
What you need to understand is that twrp will not stick after you flash it. This device does not have a recovery partition and that's why you replace the boot partition with twrp and while you're in twrp you need to flash the boot.img back and whatever mods on top of that such as kernel etc.. If you flash a rom then it will replace the twrp with the boot.img found in the rom zip.
So now we need the computer to recognize you device. Could you unplug the cable and change the usb port on you computer. connect your phone while you're in the bootloader menu where it says start on the top.
The use use fastboot command: fastboot devices
See if the computer recognizes you device.