CyanogenMod for Lenovo Tab2 A7 - General Questions and Answers

Hello,
I am trying to install CM on my old Android tablet - Lenovo TAB 2 A7-30DC, Android version : 5.0.1 , Kernel version: 3.10.54 . I have downloaded the zip cm-12.1-Tab2A710F-20210102-1707.zip , but I cant install it . I have root on the tablet, installed flashify, twrp, but I cannot unlock the bootloader - I dont have OEM unlocking as an option in Developer Mode menu. Please let me know what should be my next steps. Thank you.

Download "ADB fastboot tools"
Download and Extract the Downloaded ADB fastboot Zip file on your PC.
Now connect your phone to Computer using USB Cable.
When you connect your Phone to Computer, please wait until all the drivers get installed.
In your ADB fastboot folder open a command prompt window by pressing Shift Key + Right Mouse Click Now type the command in your command window:
-----------------------
adb devices
------------------------
If you see a pop up to allow USB Debugging on your phone, Click OK
Now type the command below to reboot your phone to bootloader:
-------------------------------------
adb reboot bootloader
-------------------------------------
Once your phone reboot into bootloader, make sure your phone shows the bootloader locked and then type the command below to make sure fastboot drivers are installed properly.
-------------------------------------
fastboot devices
-------------------------------------
This command will list the connected devices. If your phones serial number shows up you are good to go and may continue. If the phone is NOT listed this indicates that your drivers are not installed correctly. In order for you to continue you must fix your drivers so that your phone is listed under fastboot devices.If the phone has been recognized by the command above, proceed to unlocking the bootloader with the following command:
(Remember that this step will wipe EVERYTHING off the phone)
-------------------------------------
fastboot oem unlock
-------------------------------------
After the above command has finished executing, run the following:
---------------------------
fastboot reboot
---------------------------
The phone will reboot. Wait until the phone has fully booted up into android, and enjoy.

The link you posted is the only link I found on the internet that is not dead. It is impossible to find some link for custom rom and twrp that works. I have the same tablet. I unlocked the bootloader and that’s all I managed to do.

petko.dimitrov said:
Hello,
I am trying to install CM on my old Android tablet - Lenovo TAB 2 A7-30DC, Android version : 5.0.1 , Kernel version: 3.10.54 . I have downloaded the zip cm-12.1-Tab2A710F-20210102-1707.zip , but I cant install it . I have root on the tablet, installed flashify, twrp, but I cannot unlock the bootloader - I dont have OEM unlocking as an option in Developer Mode menu. Please let me know what should be my next steps. Thank you.
Click to expand...
Click to collapse
I have this problem too. And I have another problem my device recognizes my tab when I type adb devices but it doesn't recognize it in fastboot mode. I have installed all drivers I don't know what else to do.

Related

[Q] How to downgrade to jb 10.6.1.14.8?

My infinity just passes its warranty and it is in newest stock firmware and not rooted. I think it is too slow and laggy and i would like to make some change by flashing new rom. As i know, the newest firmware .10 can not be unlocked and flash rom? So do i have to downgrade to .8 to make it work?
ericsundiu said:
My infinity just passes its warranty and it is in newest stock firmware and not rooted. I think it is too slow and laggy and i would like to make some change by flashing new rom. As i know, the newest firmware .10 can not be unlocked and flash rom? So do i have to downgrade to .8 to make it work?
Click to expand...
Click to collapse
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot and use that custom recovery to flash a custom rom.
If you use this method you bypass rooting the stock rom altogether. Every custom rom is rooted already.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
berndblb said:
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot and use that custom recovery to flash a custom rom.
If you use this method you bypass rooting the stock rom altogether. Every custom rom is rooted already.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
Click to expand...
Click to collapse
do you mean i can still unlock with the 10.6.1.14.10 firmware? using the official unlock tool?
ericsundiu said:
do you mean i can still unlock with the 10.6.1.14.10 firmware? using the official unlock tool?
Click to expand...
Click to collapse
Unlocking and rooting are two different things. There is no known root method at this time for the 10.6.1.14.10 firmware. The Unlock Tool should still work.
I don't think it's a question which firmware you have - sometimes it works like a charm and other users cannot unlock at all due to incorrect or incomplete S/N database on Asus servers. At least I have not heard anything that people have trouble unlocking after the last update.
Just download the latest version, v8 I think, install and run it. The worst that can happen is it fails.
Do yourself a huge favor and educate yourself thoroughly before you try to flash custom software to the tablet.
There is little risk in flashing a custom rom IF you do it right. But yesterday night I tried to help someone who did it wrong and hard bricked his tablet. Read 3 times, ask twice, flash once!
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
berndblb said:
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot
Click to expand...
Click to collapse
For flashing via adb and the staging partition, Android must be rooted. Fastboot works without root.
I did a clean wipe of my tablet and installed 10.6.1.14.10 onto my tablet.
I have unlocked the bootloader, but when booting up I then have the default recovery and rom supplied by Asus with no root.
I tried motochopper and debugfs method, and as described above neither work, the cmd prompt windows just record failures.
Read this forum regarding what is what (fastboot, root, unlocked etc.) and why you do them
http://forum.xda-developers.com/showthread.php?t=1833212
The way I gave root to the stock rom was by loading into fastboot mode and pushing a twrp image to my tablet off CHROMI rom site. I then used that to root the system. To be honest I did not need to root as I could have just then flashed the CHROMI custom rom which comes with SU anyway....
Get fastboot into a folder and also copy the TWRP recovery img inside the fastboot folder
Attach your device to the PC
Start fastboot mode by switching off your tablet then switching on in bootloader by holding down power on and volumn down
Connect tablet to PC (need approperiate drivers)
Open cmd prompt as admininstrator and goto directory with recovery image in the fastboot folder
Type the following commands:
fastboot -i 0x0B05 flash recovery recovery.img
fastboot -i 0x0B05 reboot (though I don't think i typed this if honest, struggling to remember)
Unplug tablet from the PC and reboot into recovery mode
If you got the image of twrp from CHROMI site which includes bootloader also, i think it includes SU, therefore just exit and close recovery and it should ask to install SU. Select yes
Reboot the device
Your device is now rooted, though think you need to run SU in the tablet to get it fully setup.
Sorry this is not 100% perfect, I will recall what I did tonight when at home in front of PC with files.
berndblb said:
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot and use that custom recovery to flash a custom rom.
If you use this method you bypass rooting the stock rom altogether. Every custom rom is rooted already.
Click to expand...
Click to collapse
Hello Berndblb (and everybody else ),
I'm quite a Noob around here as you can see and I've the same problem.
My TF700 has the build : US_epad-10.6.1.14.10 and the Android version : 4.2.1
I followed the instructions from this thread and now my tablet is unlocked.
I want to flash it to run under the last version of Cromi and I've read the instructions :
"- Step 1 - Coming from Stock Asus 10.6.1.x – INSTALLING TWRP 2.5 on 10.6.1.14.4/8"
Okay, so now I need to install TWRP, so I followed the guidelines : to do so, the easiest way is to install goomanager on the playstore.
Okay let's do this, I go to the playstore and I read the first line : This app is for ROOTED USERS ONLY!
Okay, so now before doing anything, I need to root my TF700, so I go back to this thread and I see that the easiest way to do it is by using motochopper but motochopper doesn't seem to work on 10.6.1.14.10.
As you said yourself previously before, I need to downgrade to 0.8 before using motochopper to root my tablet.
Okay let's do this, I search many threads and I've finally used this method :
1/ Download the previous firmware from asus website for my tablet (us version) and unzip it to get another .zip : US_epad-user-10.6.1.14.8.zip
2/ Put it into the root of my internal sd card
3/ Boot with "power + vol down" then after the splash screen put "vol up".
4/ Android start to work to add the downgrade version.... then I get the sick droid !
So, now I'm quite stuck here, I can't downgrade this way... any advices ?
M1ster1 said:
Hello Berndblb (and everybody else ),
I'm quite a Noob around here as you can see and I've the same problem.
My TF700 has the build : US_epad-10.6.1.14.10 and the Android version : 4.2.1
I followed the instructions from this thread and now my tablet is unlocked.
I want to flash it to run under the last version of Cromi and I've read the instructions :
"- Step 1 - Coming from Stock Asus 10.6.1.x – INSTALLING TWRP 2.5 on 10.6.1.14.4/8"
Okay, so now I need to install TWRP, so I followed the guidelines : to do so, the easiest way is to install goomanager on the playstore.
Okay let's do this, I go to the playstore and I read the first line : This app is for ROOTED USERS ONLY!
Okay, so now before doing anything, I need to root my TF700, so I go back to this thread and I see that the easiest way to do it is by using motochopper but motochopper doesn't seem to work on 10.6.1.14.10.
As you said yourself previously before, I need to downgrade to 0.8 before using motochopper to root my tablet.
Okay let's do this, I search many threads and I've finally used this method :
1/ Download the previous firmware from asus website for my tablet (us version) and unzip it to get another .zip : US_epad-user-10.6.1.14.8.zip
2/ Put it into the root of my internal sd card
3/ Boot with "power + vol down" then after the splash screen put "vol up".
4/ Android start to work to add the downgrade version.... then I get the sick droid !
So, now I'm quite stuck here, I can't downgrade this way... any advices ?
Click to expand...
Click to collapse
You can try to install from your system, not stock recovery. You need to boot your system normally and look in the lower right corner at your notification. It should notify you that their is an update for you. When you click on it, it will walk you through the update process. You need to make sure that you have only one zip file in your directory which is the Asus firmware that you want to update.
You can also use fastboot to install the TWRP. I don't think you need to root to install a custom recovery by using fastboot if you already unlocked your bootloader. IMO, I think fastboot is easier and faster than motochopper because of rooting process...
LetMeKnow said:
You can also use fastboot to install the TWRP. I don't think you need to root to install a custom recovery by using fastboot if you already unlocked your bootloader. IMO, I think fastboot is easier and faster than motochopper because of rooting process...
Click to expand...
Click to collapse
Thanks LetMeKnow !
It was the right way to do it (Berndblb advised this also here).
It worked and I've now TWRP installed ! :victory:
But it wasn't so easy, fortunately there's plenty of help around here
I'll write here quickly how I did it, it could help someone, who knows, sharing doesn't hurt, even if I'm sure there's plenty of different methods to do it.
I found some help in this guide because the explanation under "Download - Recovery Image / Fastboot Method:" from the TWRP page is a bit rough for a beginner like me.
First I need to mention that I've Windows XP on my computer.
As you can read here there's 3 different ways to install TWRP on the TF700, the first one is the easiest one, but you need to be root, if you're unrooted like me and you want to skip rooting, let's install TWRP via fastboot.
Requirements :
- Bootloader must be unlocked. Very easy following this thread.
- ADB and Fastboot must be installed on your computer. You can follow this guide, this way you'll install them from the latest version of Android SDK and avoid any trouble.
- You should have the USB driver for your TF700 installed on your computer. I've read multiple times that that the official drivers could create some trouble, and indeed it happened to me. So you can give a try, and if this doesn't work, let's go for the Universal Naked Driver.
- Download the last version of TWRP (the newest .blob file) from here. Rename it to twrp.blob and place it under C:/Android (or C:/Android-adb, depending how you've rename your folder containing adb and fastboot.exe).
Fastboot method :
- Before starting, you want to be sure that your computer recognize well your tablet, otherwise, you'll follow a tutoriel like me, enter the final command, press enter and watch... nothing ! just a prompt command blinking in front of you, because if the script don't find any device, it will just write nothing.
To be sure of that, turn on your TF700, Plug it to your computer via a USB cable, then enable USB debugging (Tap the Build Number 7 times under Settings, About Tablet and it will show up under Dev Settings).
Now, if you're under WinXP like me, it may be possible that the pc doesn't recognize well your tablet, and you'll probably have to play with your device manager (to go into your device manager right-click on My Computer and click Properties, In the System Properties window click the Hardware tab, In the Hardware tab click the Device Manager button then look for your device, click on it, uninstall drivers, then reinstall the naked driver mentioned before for example). You may find some help here or around here in the forum.
Once you think your tablet with USB debugging enabled is well recognized by your computer, try to open a command prompt (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box) and type “adb devices” (without quotes). The daemon will start up, and all connected devices will be listed. If your device shows up, let's continue to next step, otherwise, you should continue to play with uninstalling drivers, reboot, installing others drivers...
- Turn off & Unplug your device.
- Enter fastboot mode : Keep pressing the Power button while holding the Volume down button till the screen responds then
1) If you have an old bootloader select USB icon, press Volume up button.
2) If you have the new 4.2.1 boot loader it automatically boot into usb mode, it should be written in the upper left corner something like this :
The Device is UnLocked.
key driver not found...booting os
Android cardhu-user bootloader <1.00 e> released by "ww_epad-10.6.1.14-20130329" A03
Starting Fastboot USB download Protocol
I didn't know that and I found some answer here and here.
- Plug the TF700 to your computer via a USB cable. (and make sure no other android devices is connected to the computer)
- Open a command prompt in your computer (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box).
Just to be sure (one more time) that your device is well recognized by the computer type “fastboot devices” (without quotes).
You should see at least one line with some numbers written.
Then, change the working directory of the command window to the directory where you had placed the TWRP recovery file (twrp.blob) using the command “cd directorylocation” without quotes (probably, “cd c:\android“).
Then, in the command prompt, enter the command: fastboot -i 0x0B05 flash recovery twrp.blob
After the process finishes, You can unplug and reboot your tablet.
- Normally the TWRP recovery is now installed on your device !
To check that enter recovery mode : Boot with "power + vol down" then after the splash screen put "vol up". You should see that image, cool right ?
I don't take any credit for this quick explanation because I took all the informations from this forum (and from different other websites) and gathered them together for my own case, but I think this may help others.
A big Thanks to all the guys here who take the time to write, explain and help, that's great, keep it up the good work :good:
M1ster1 said:
Thanks LetMeKnow !
It was the right way to do it (Berndblb advised this also here).
It worked and I've now TWRP installed ! :victory:
But it wasn't so easy, fortunately there's plenty of help around here
I'll write here quickly how I did it, it could help someone, who knows, sharing doesn't hurt, even if I'm sure there's plenty of different methods to do it.
I found some help in this guide because the explanation under "Download - Recovery Image / Fastboot Method:" from the TWRP page is a bit rough for a beginner like me.
First I need to mention that I've Windows XP on my computer.
As you can read here there's 3 different ways to install TWRP on the TF700, the first one is the easiest one, but you need to be root, if you're unrooted like me and you want to skip rooting, let's install TWRP via fastboot.
Requirements :
- Bootloader must be unlocked. Very easy following this thread.
- ADB and Fastboot must be installed on your computer. You can follow this guide, this way you'll install them from the latest version of Android SDK and avoid any trouble.
- You should have the USB driver for your TF700 installed on your computer. I've read multiple times that that the official drivers could create some trouble, and indeed it happened to me. So you can give a try, and if this doesn't work, let's go for the Universal Naked Driver.
- Download the last version of TWRP (the newest .blob file) from here. Rename it to twrp.blob and place it under C:/Android (or C:/Android-adb, depending how you've rename your folder containing adb and fastboot.exe).
Fastboot method :
- Before starting, you want to be sure that your computer recognize well your tablet, otherwise, you'll follow a tutoriel like me, enter the final command, press enter and watch... nothing ! just a prompt command blinking in front of you, because if the script don't find any device, it will just write nothing.
To be sure of that, turn on your TF700, Plug it to your computer via a USB cable, then enable USB debugging (Tap the Build Number 7 times under Settings, About Tablet and it will show up under Dev Settings).
Now, if you're under WinXP like me, it may be possible that the pc doesn't recognize well your tablet, and you'll probably have to play with your device manager (right click on your device, uninstall drivers, then reinstall the naked driver mentioned before for example). You may find some help here or around here in the forum.
Once you think your tablet with USB debugging enabled is well recognized by your computer, try to open a command prompt (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box) and type “adb devices” (without quotes). The daemon will start up, and all connected devices will be listed. If your device shows up, let's continue to next step, otherwise, you should continue to play with uninstalling drivers, reboot, installing others drivers...
- Turn off your device.
- Enter fastboot mode : Keep pressing the Power button while holding the Volume down button till the screen responds then
1) If you have an old bootloader select USB icon, press Volume up button.
2) If you have the new 4.2.1 boot loader it automatically boot into usb mode, it should be written in the upper left corner something like this :
The Device is UnLocked.
key driver not found...booting os
Android cardhu-user bootloader <1.00 e> released by "ww_epad-10.6.1.14-20130329" A03
Starting Fastboot USB download Protocol
I didn't know that and I found some answer here and here.
- Plug the TF700 to your computer via a USB cable. (and make sure no other android devices is connected to the computer)
- Open a command prompt in your computer (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box).
Just to be sure (one more time) that your device is well recognized by the computer type “fastboot devices” (without quotes).
You should see at least one line with some numbers written.
Then, change the working directory of the command window to the directory where you had placed the TWRP recovery file (twrp.blob) using the command “cd directorylocation” without quotes (probably, “cd c:\android“).
Then, in the command prompt, enter the command: fastboot -i 0x0B05 flash recovery twrp.blob
After the process finishes, You can unplug and reboot your phone.
- Normally the TWRP recovery is now installed on your device !
To check that enter recovery mode : Boot with "power + vol down" then after the splash screen put "vol up". You should see that image, cool right ?
I don't take any credit for this quick explanation because I took all the informations from this forum (and from different other websites) and gathered them together for my own case, but I think this may help others.
A big Thanks to all the guys here who take the time to write, explain and help, that's great, keep it up the good work :good:
Click to expand...
Click to collapse
Good job! Congrats!
And thank you for putting this guide together. That's what I call sharing! :victory:
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
M1ster1 said:
Thanks LetMeKnow !
It was the right way to do it (Berndblb advised this also here).
It worked and I've now TWRP installed ! :victory:
But it wasn't so easy, fortunately there's plenty of help around here
I'll write here quickly how I did it, it could help someone, who knows, sharing doesn't hurt, even if I'm sure there's plenty of different methods to do it.
I found some help in this guide because the explanation under "Download - Recovery Image / Fastboot Method:" from the TWRP page is a bit rough for a beginner like me.
First I need to mention that I've Windows XP on my computer.
As you can read here there's 3 different ways to install TWRP on the TF700, the first one is the easiest one, but you need to be root, if you're unrooted like me and you want to skip rooting, let's install TWRP via fastboot.
Requirements :
- Bootloader must be unlocked. Very easy following this thread.
- ADB and Fastboot must be installed on your computer. You can follow this guide, this way you'll install them from the latest version of Android SDK and avoid any trouble.
- You should have the USB driver for your TF700 installed on your computer. I've read multiple times that that the official drivers could create some trouble, and indeed it happened to me. So you can give a try, and if this doesn't work, let's go for the Universal Naked Driver.
- Download the last version of TWRP (the newest .blob file) from here. Rename it to twrp.blob and place it under C:/Android (or C:/Android-adb, depending how you've rename your folder containing adb and fastboot.exe).
Fastboot method :
- Before starting, you want to be sure that your computer recognize well your tablet, otherwise, you'll follow a tutoriel like me, enter the final command, press enter and watch... nothing ! just a prompt command blinking in front of you, because if the script don't find any device, it will just write nothing.
To be sure of that, turn on your TF700, Plug it to your computer via a USB cable, then enable USB debugging (Tap the Build Number 7 times under Settings, About Tablet and it will show up under Dev Settings).
Now, if you're under WinXP like me, it may be possible that the pc doesn't recognize well your tablet, and you'll probably have to play with your device manager (to go into your device manager right-click on My Computer and click Properties, In the System Properties window click the Hardware tab, In the Hardware tab click the Device Manager button then look for your device, click on it, uninstall drivers, then reinstall the naked driver mentioned before for example). You may find some help here or around here in the forum.
Once you think your tablet with USB debugging enabled is well recognized by your computer, try to open a command prompt (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box) and type “adb devices” (without quotes). The daemon will start up, and all connected devices will be listed. If your device shows up, let's continue to next step, otherwise, you should continue to play with uninstalling drivers, reboot, installing others drivers...
- Turn off & Unplug your device.
- Enter fastboot mode : Keep pressing the Power button while holding the Volume down button till the screen responds then
1) If you have an old bootloader select USB icon, press Volume up button.
2) If you have the new 4.2.1 boot loader it automatically boot into usb mode, it should be written in the upper left corner something like this :
The Device is UnLocked.
key driver not found...booting os
Android cardhu-user bootloader <1.00 e> released by "ww_epad-10.6.1.14-20130329" A03
Starting Fastboot USB download Protocol
I didn't know that and I found some answer here and here.
- Plug the TF700 to your computer via a USB cable. (and make sure no other android devices is connected to the computer)
- Open a command prompt in your computer (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box).
Just to be sure (one more time) that your device is well recognized by the computer type “fastboot devices” (without quotes).
You should see at least one line with some numbers written.
Then, change the working directory of the command window to the directory where you had placed the TWRP recovery file (twrp.blob) using the command “cd directorylocation” without quotes (probably, “cd c:\android“).
Then, in the command prompt, enter the command: fastboot -i 0x0B05 flash recovery twrp.blob
After the process finishes, You can unplug and reboot your tablet.
- Normally the TWRP recovery is now installed on your device !
To check that enter recovery mode : Boot with "power + vol down" then after the splash screen put "vol up". You should see that image, cool right ?
I don't take any credit for this quick explanation because I took all the informations from this forum (and from different other websites) and gathered them together for my own case, but I think this may help others.
A big Thanks to all the guys here who take the time to write, explain and help, that's great, keep it up the good work :good:
Click to expand...
Click to collapse
It is a nice written How to do list, good job... :good:
You can add these command for fastboot to your list instead of using the power button and volume down..
> fastboot reboot-bootloader # Exit fastboot and reboot into bootloader.
> fastboot reboot # Exit fastboot and reboot to your system
Good job.. :good:
FAILED (InvalidSize)
I am attempting to install a ROM on my Transformer Infinity as it pretty much sucks these days but am a complete NOOB. Have never attempted this with any of my phones or tablets, but figure I would try since these directions are so detailed. After following most the steps you have listed, I get the error below in the command prompt. Can someone please help, I tried searching XDA and Google to no avail. If possible please be as basic and speak in layman's terms b/c all this technical jargon goes right over my head. Thank you in advance!!!
Step followed:
- Then, change the working directory of the command window to the directory where you had placed the TWRP recovery file (twrp.blob) using the command “cd directorylocation” without quotes (probably, “cd c:\android“).
Then, in the command prompt, enter the command: fastboot -i 0x0B05 flash recovery twrp.blob
After the process finishes, You can unplug and reboot your tablet.
Error:
c:\Android-ADB>fastboot -i 0x0B05 flash recovery twrp.blop
sending 'recovery' <8218 KB>...
OKAY [ 2.938s]
writing 'recovery'...
FAILED <remote: <InvalidSize>>
finished. total time: 6.633s
epps720 said:
Error:
c:\Android-ADB>fastboot -i 0x0B05 flash recovery twrp.blop
sending 'recovery' <8218 KB>...
OKAY [ 2.938s]
writing 'recovery'...
FAILED <remote: <InvalidSize>>
finished. total time: 6.633s
Click to expand...
Click to collapse
Don't know if you cut and paste the error message or typed it up. But what I notice is that you named the recovery file .blop
It should be .blob
Another step to avoid simple errors: Place the recovery.blob file into the same directory with your fastboot file.
Right click in that directory to open a command prompt and then execute the command
fastboot -i 0x0B05 flash reccovery twrp.blob
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
berndblb said:
Don't know if you cut and paste the error message or typed it up. But what I notice is that you named the recovery file .blop
It should be .blob
Another step to avoid simple errors: Place the recovery.blob file into the same directory with your fastboot file.
Right click in that directory to open a command prompt and then execute the command
fastboot -i 0x0B05 flash reccovery twrp.blob
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
Click to expand...
Click to collapse
Thanks for the help but I'm still getting the same error. I did move the recovery file to the same folder and open the command prompt right from that folder but no luck. Any other ideas?
Thanks again.
epps720 said:
Thanks for the help but I'm still getting the same error. I did move the recovery file to the same folder and open the command prompt right from that folder but no luck. Any other ideas?
Thanks again.
Click to expand...
Click to collapse
Actually yes.
Just read in another thread about someone having the same problem as you, getting the incorrect file size error.
Download the TWRP 2.5 blob and try it with that file. I have no idea why, but TWRP 2.6 may cause this error.
At least that bloke got the recovery installed that way. Once you have TWRP, it's easy to upgrade to the latest version.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
berndblb said:
I have no idea why, but TWRP 2.6 may cause this error.
Click to expand...
Click to collapse
The blob for TWRP 2.6.3 is bigger than the recovery partition. 2.6.1 should work.
berndblb said:
You don't have to downgrade.
After you unlocked your tablet, you can push a custom recovery through ADB or fastboot and use that custom recovery to flash a custom rom.
If you use this method you bypass rooting the stock rom altogether. Every custom rom is rooted already.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
Click to expand...
Click to collapse
Ive had the same question as the OP, i also have a .10 version, i have a US sku, and i downlaoded said associating item but when I went but when i go to either do it with sd, or intewrnal sd, or how ever. through manual or through android, either method both resulted in error when trying to downgrade, i dont know if its because its a downgrade or what.
Ive some linux experience over the years, and have rooted and run custom roms in the past. im trying to achieve the same as the OP, fix my lag, and more options and tweaks.
I have the .zip of the rom i want whitch i found I liked the xcromi rom, so I downloaded it. so, i can put that in and name it what and how do i do the update than through the volume down + pwr combo into that menu? (not sure what its called) but i can't do sideloads because i can't havbe the ultity to sideload without rooting and i can't root with .10, so i have been trying to get past this single step all night and this morning now.
@M1ster1
Thanks for posting this guide. It doesn't do a perfect job however on the TF700t running Android build 10.6.1.14.10. Tried to use the "fix permissions" option in ROM Manager but failed due to insufficient permissions. I installed CWM Superuser and cleaned up the version of SuperSU (prefer Superuser anyhow)... updated the binaries and still no love when trying to correct the permissions, despite all tests showing the device fully rooted.
After a day of pulling my hair out I finally came across vRoot and after even longer found a guide in English. Ran that, again swapped out the Superuser that went with vRoot and again reinstalled Superuser. Used Ti to install as system app. After reboot ROM Manager was finally able to correct permissions and all is golden again.
Hi ,
My Transformer has 10.6.1.14.10 and I am trying to install TWRP thru fastboot as per "M1ster" instructions.
these are the results I see from my command prompt.
C:\Users\Ken>fastboot devices
015d2bbce7041e07 fastboot
C:\Users\Ken>cd c:\Android-adb
c:\Android-adb>fastboot -i 0x0B05 flash recovery twrp.blob
sending 'recovery' (4 KB)...
OKAY [ 0.066s]
writing 'recovery'...
OKAY [ 3.374s]
finished. total time: 3.441s
c:\Android-adb>
after I reboot and select RDK , i get the sick droid error,
I feel like I have missed something, hopefully somebody can point me in the right direction
Thanks
helihaole said:
c:\Android-adb>fastboot -i 0x0B05 flash recovery twrp.blob
sending 'recovery' (4 KB)...
Click to expand...
Click to collapse
Your "twrp.blob" apparently doesn't contain a recovery - it should be around 6 to 8 MB.

adb device not found

Hello,
My nexus 5 is rooted, rom custom (great terminus) and kernel code blue.
I have recently to try change my kernel for Stock Kernel [L-preview r3] [LPX13D] : I take the kernel stock on this page : http://forum.xda-developers.com/google-nexus-5/general/kernel-t2518816
I have just reboot my device on recovery (TWRP) and flash the kernel and reeboot. No wipe. Nothing else. But my phone doesn't start : Now after bootanimation, I have "update of app 14 on 95.." and at the end of this loading
phone reboot and "update of app" again.. endlessly.
So I try reinstall a factory ROM, bootloader, radio, kernel. All. The problem is my phone is not found on adb command :
HOWEVER USB debugging is activated.
On windows, the device is recognized on device Manager "android device" "android bootloader interface".
I have the latest version of fastboot tools of android sdk installed.
My phone is boot on bootloader and plug in USB
The following command :
adb devices
list of devices attached
adb usb
error device not found
I also tried on my macbook pro. Same problem, all seem work fine but device not found.
Have you an idea to force the recognition of the device ?
If you're in the bootloader its fastboot not adb
Fastboot devices
Sent from my Nexus 5 using Tapatalk
Yes, was that^^ Thanks !

Not Booting in Bootloader

I buy this phone few days ago and wanted to install cm14.1 and read the procedure all but when i try to use adb and unlock bootloader im not able to or my device not getting detect by adb it dose when i use usb tethering but i tried to reboot bootloader no luck then again i tried to boot in stock recovery and select to reboot bootloader it not getting me to fast boot screeen how i can make things go and unlock the bootloader and install twrp and install cm14.1 sorry im new to this device
vincy009 said:
I buy this phone few days ago and wanted to install cm14.1 and read the procedure all but when i try to use adb and unlock bootloader im not able to or my device not getting detect by adb it dose when i use usb tethering but i tried to reboot bootloader no luck then again i tried to boot in stock recovery and select to reboot bootloader it not getting me to fast boot screeen how i can make things go and unlock the bootloader and install twrp and install cm14.1 sorry im new to this device
Click to expand...
Click to collapse
Why choosing hard method
Install kingroot .
Root your phone.
Install flashify
Download twrp IMG
Flash it using flashify
You r done
Like if helpful
Thanks but I made it work actually the screen was in fastboot I wasn't knowing..
And about rooting kingroot is the worst way to root it dosent gives you the Complete root privilege its something like half rooted go for supersu allways
vincy009 said:
Thanks but I made it work actually the screen was in fastboot I wasn't knowing..
And about rooting kingroot is the worst way to root it dosent gives you the Complete root privilege its something like half rooted go for supersu allways
Click to expand...
Click to collapse
Half rooted like what? Example?
U have to download Universal ADB driver from XDA or Google it.
Firstly install adb drivers then download twrp 3.0.2 from twrp official site.
Put files in C:/adb/
Right Click + Shift on adb folder
Then choose command prompt
Open developer options
Enable OEM Unlocking
Enable USB debugging
Attach cable to phone
Phone will shows option
Tick and press OK
Goto command prompt
Commands
abd devices
It shows your device is connected or not
If device shows then type command
adb reboot bootloader
Device will be restarts and stuck on logo or it will shows fastboot mode
Type command
fastboot devices
Your device will be show here
Type command
device oem unlock
It shows message Okay
Your device is unlocked now
Type command
fastboot flash recovery twrp_jalebi.img ( ur twrp name)
Type command
fastboot reboot
Your device is unlocked now.
Now download supersu.zip and install it with twrp
Note:Flash supersu.zip is only required for lollipop version.
In marshmallow and noughat you don't need to flash supersu. If you do same then you will be got a device with bootloop.
In 6.0.1 and 7.0 the root access is already installed . you can got it from developer mode.
Hit thanks if I give you right instructions.

Moto x play os and twerp fix help

My phone doesn't has os i tried to fix things up but it didn't worked. The TWRP was there but now it's opening it also in fastboot mode. I tried to connect it with PC but it didn't worked. Need help, please help.
hello, problem is simple you cleared system in twrp right,
so, just follow step by step and you phone would boot normally.
first download latest firmware for your model.
unzip it.
download and install minimal adb and fastboot from here
secondly.
boot into fastboot mode as you said.
open command prompt in pc. connect your phone using adb cable (cable in the charger)
type fastboot devices
if you see your device (any number displayed like 0328438 )
if you see waiting for device then try another cable or let me know.
after that type fastboot flash file <-------- replace file with .img files in your firmware folder.
if you see any thing like flash locked or any thing try this command fastboot oem unlock
click like if i helped.

TWRP installation for Tecno pop 2f

Hello
I have been trying to root my device Tecno pop 2f and I've only gotten as far as opening the device's bootloader but I cant seem to unlock the bootloader when entering the command fastboot OEM unlock/ fastboot flash unlock, but oddly enough the device seems to have multiple bootloaders (I don't know if that's even possible)
Developer mode has been enabled and OEM lock has been disabled when the device was on
after sorting that out...
There are 2 methods I used with adb
Method 1
1) adb devices
2) adb reboot bootloader
2) fastboot OEM unlock (error: unknown cmd)
Method 2
1) adb reboot recovery (Then I would switch to the phone to manually enter fastboot mode, which looks different than method 1)
2) fastboot OEM unlock (weirdly it works here)
3) fastboot flash recovery recovery.img (error: Flashing lock flag is locked, please unlock it first)
I'd wish to provide screenshots but I only have a single device and a crappy camera on the laptop so there's no use, please make due with this information.
Yes, an Android device indeed has 2 bootloaders - they are called first stage and second stage. The first loads the second what loads the Android OS.
If not already done yet download the "Tecno USB Drivers" provided by phone's OEM suitable to your phone and install those. Then Fastboot may work as expected.
Download and Install Tecno USB Drivers with How to Guide
Here you will find the latest Tecno USB Drivers. Download and install the latest Tecno USB Drivers on your PC before performing any task connecting your
www.getdroidtips.com
xXx yYy said:
If not already done yet download the "Tecno USB Drivers" provided by phone's OEM suitable to your phone and install those. Then Fastboot may work as expected.
Download and Install Tecno USB Drivers with How to Guide
Here you will find the latest Tecno USB Drivers. Download and install the latest Tecno USB Drivers on your PC before performing any task connecting your
www.getdroidtips.com
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Click to collapse
alright I'll get back to you with updates. On it

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