[Q] Hot to Root Lava A97 - Android Q&A, Help & Troubleshooting

Hi,
I am Using LAVA A97 device recently launched. I need to root this mobile to apply some tweaks. I tried various methods like flashing the zip from the SD card and sideload. The error I got always is "Signature Verification Failed". I tried finding custom recoveries and even tried porting custom recoveries but all stopped at the boot image.
Please help me to root this device or port me a custom recovery. I will provide you the files you needed.

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Have you tried enabling OEM bootloader setting in developer options?

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vshlkmr said:
Have you tried enabling OEM bootloader setting in developer options?
Click to expand...
Click to collapse
Ya I allowed oem unlocking in developer options. But when i boot to fastboot mode and enter command
Code:
fastboot oem unlock
it struck on the boot screen. I have waited for an hour but nothing happened. I just removed battery and rebooted my mobile.
I can give you the stock rom can you make it pre rooted

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Please tell me the procedure to add su files in marshmallow system.img and flash it

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Bro, I used to root androids way before, then I moved to windows phone and have just recently bought this lava a97. Although I can give you an easiest way to root a device, you can try it with this phone and let me know if it works.
Find a stock rom of any device you want to root, extract the boot.img (use cygwin if you are on windows), there will be a line "ro_secure=1" just change the one to zero, repack the boot.img and either reflash the entire modified rom or just the boot.img.
Then you can simply install super su and then any root checker app to see if the phone is rooted.
Although this method used to work flawlessly on indian branded phones running android 4 series but not sure it will work now, but it's worth a try.
---------- Post added at 08:51 AM ---------- Previous post was at 08:46 AM ----------
karljsamuel said:
Please tell me the procedure to add su files in marshmallow system.img and flash it
Click to expand...
Click to collapse
Rooted phones use su binaries (small block of codes that perform a specialized function) which are granted to be used by any other app that requires them through superuser app. Just pushing in the superuser app won't give you root, you also need those binaries (which on various phones are transfered via adb or through zip flashing into the /bin directory)
---------- Post added at 08:55 AM ---------- Previous post was at 08:51 AM ----------
You can do one thing, extract the stock rom, extract the system.img partition, and then copy the binaries directly to the /bin folder (you can lift those binaries from any rooting zip file from the corresponding bin folder), then copy the superuser app to /system/apk , repack everything, then edit the boot.img as I told earlier, then flash this modified rom onto the phone.
---------- Post added at 08:58 AM ---------- Previous post was at 08:55 AM ----------
Try googling for cygwin, if you are running Windows 10 x64 bit, you can also enable bash for ubuntu... These tools will make packing, editing and repacking of the images easier, but am not sure how to flash the image again back onto the phone

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vshlkmr said:
Bro, I used to root androids way before, then I moved to windows phone and have just recently bought this lava a97. Although I can give you an easiest way to root a device, you can try it with this phone and let me know if it works.
Find a stock rom of any device you want to root, extract the boot.img (use cygwin if you are on windows), there will be a line "ro_secure=1" just change the one to zero, repack the boot.img and either reflash the entire modified rom or just the boot.img.
Then you can simply install super su and then any root checker app to see if the phone is rooted.
Although this method used to work flawlessly on indian branded phones running android 4 series but not sure it will work now, but it's worth a try.
---------- Post added at 08:51 AM ---------- Previous post was at 08:46 AM ----------
Rooted phones use su binaries (small block of codes that perform a specialized function) which are granted to be used by any other app that requires them through superuser app. Just pushing in the superuser app won't give you root, you also need those binaries (which on various phones are transfered via adb or through zip flashing into the /bin directory)
---------- Post added at 08:55 AM ---------- Previous post was at 08:51 AM ----------
You can do one thing, extract the stock rom, extract the system.img partition, and then copy the binaries directly to the /bin folder (you can lift those binaries from any rooting zip file from the corresponding bin folder), then copy the superuser app to /system/apk , repack everything, then edit the boot.img as I told earlier, then flash this modified rom onto the phone.
---------- Post added at 08:58 AM ---------- Previous post was at 08:55 AM ----------
Try googling for cygwin, if you are running Windows 10 x64 bit, you can also enable bash for ubuntu... These tools will make packing, editing and repacking of the images easier, but am not sure how to flash the image again back onto the phone
Click to expand...
Click to collapse
I tried the above mentioned steps in my Ubuntu 16.04 with Android Kitchen and Superr's Kitchen. With Android kitchen, I unpacked the system.img and the kitchen made the boot image and made the ro.secure=0. Then I added the necessory files from @Chainfire SuperSU.zip as per the update-binary script mentioned and repacked system.img with Superr's Kitchen. When I flashed modified system.img and boot.img with flash tool.
The superSU app said that su binaries are not installed and it cant install them also it asked me to reroot the mobile phone.
I also tried with Dirtycow exploit also but not worked.
Mobile is running Marshmallow API 23
Can you make me a custom recovery. I followed the steps mentioned in this forum to port a custom recovery but it struck in the boot logo.
The Stock Firmware file Now I have in my mobile can be downloded from Google Drive.
Boot.img Recovery.img and build.prop file is uploaded as Zip to Google Drive

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How are you flashing the files back to phone? What software you using? And maybe superuser cannot find the binaries bcoz maybe lava a97 picks it's binaries from someplace else (like maybe /system/bin)

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vshlkmr said:
How are you flashing the files back to phone? What software you using? And maybe superuser cannot find the binaries bcoz maybe lava a97 picks it's binaries from someplace else (like maybe /system/bin)
Click to expand...
Click to collapse
Flashed with SPD upgrade tool.
The su binaries and apk files are placed as mentioned by chainfire in the update-binary provided by him for flashing the zip via custom recovery.
It told me to run su --install but the adb shell does not work after customising the rom

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karljsamuel said:
Flashed with SPD upgrade tool.
The su binaries and apk files are placed as mentioned by chainfire in the update-binary provided by him for flashing the zip via custom recovery.
It told me to run su --install but the adb shell does not work after customising the rom
Click to expand...
Click to collapse
Is USB debugging enabled?? Also switch the phone to cd rom and install the drivers

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While installing the modified system.img it give me error
- exec '/system/bin/sh' failed: No such file or directory (2) -
Even there is no such file in the stock rom. only a file named sh0 was present
I reflashed the rom and adb shell is working properly without the /system/bin/sh file

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How to root lava a97
Hey bro I read your thread and also I myself tried many ways to root my lava a97
Did u got any method to root it??
Please tell

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karljsamuel said:
Ya I allowed oem unlocking in developer options. But when i boot to fastboot mode and enter command
Code:
fastboot oem unlock
it struck on the boot screen. I have waited for an hour but nothing happened. I just removed battery and rebooted my mobile.
I can give you the stock rom can you make it pre rooted
Click to expand...
Click to collapse
Lava A97 is CortexA7 device
use fastboot tools to flash TWRP and then flash SuperSU.zip
I'm gonna port TWRP for Lava A97 soon
And will test it.
pm me and I'll give you TWRP after success in testing
OK?
---------- Post added at 09:40 AM ---------- Previous post was at 09:35 AM ----------
vshlkmr said:
Bro, I used to root androids way before, then I moved to windows phone and have just recently bought this lava a97. Although I can give you an easiest way to root a device, you can try it with this phone and let me know if it works.
Find a stock rom of any device you want to root, extract the boot.img (use cygwin if you are on windows), there will be a line "ro_secure=1" just change the one to zero, repack the boot.img and either reflash the entire modified rom or just the boot.img.
Then you can simply install super su and then any root checker app to see if the phone is rooted.
Although this method used to work flawlessly on indian branded phones running android 4 series but not sure it will work now, but it's worth a try.
---------- Post added at 08:51 AM ---------- Previous post was at 08:46 AM ----------
Rooted phones use su binaries (small block of codes that perform a specialized function) which are granted to be used by any other app that requires them through superuser app. Just pushing in the superuser app won't give you root, you also need those binaries (which on various phones are transfered via adb or through zip flashing into the /bin directory)
---------- Post added at 08:55 AM ---------- Previous post was at 08:51 AM ----------
You can do one thing, extract the stock rom, extract the system.img partition, and then copy the binaries directly to the /bin folder (you can lift those binaries from any rooting zip file from the corresponding bin folder), then copy the superuser app to /system/apk , repack everything, then edit the boot.img as I told earlier, then flash this modified rom onto the phone.
---------- Post added at 08:58 AM ---------- Previous post was at 08:55 AM ----------
Try googling for cygwin, if you are running Windows 10 x64 bit, you can also enable bash for ubuntu... These tools will make packing, editing and repacking of the images easier, but am not sure how to flash the image again back onto the phone
Click to expand...
Click to collapse
Thanks alot bro???

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TWRP port test failed

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Hey bro i have rooted my lava a97 IPS
Recovery- cyanogen recovery ported by me
And flash super su

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Can anyone Provide me the recovery & Su files Please?
---------- Post added at 04:42 AM ---------- Previous post was at 04:40 AM ----------
Mrutunjaya said:
Hey bro i have rooted my lava a97 IPS
Recovery- cyanogen recovery ported by me
And flash super su
Click to expand...
Click to collapse
I Also Want 2 Root My Device Please Can U Help Me?