Need help rooting Kruger&Matz Eagle 805 - General Questions and Answers

I want to root Kruger&Matz Eagle 805 and I came to a block.
specs are here, it's MT8735 tablet with Android 6.0. Almost identical as Lenovo tab2 a8-50
krugermatz.com/en_US/p/EAGLE-805/2377
I've unlocked bootloader with
Code:
fastboot oem unlock
and
Code:
fastboot getvar all
says bootloader is unlocked
I've also tried flashing twrp recovery image for Lenovo tab2 a8-50 and Lenovo Phab2 with
Code:
fastboot flash recovery twrp.img
it flashed succesfully
then I rebooted
Code:
fastboot reboot
and then rebooted to recovery
Code:
adb reboot recovery
Problem is, it rebooted to stock recovery. It is standard android recovery with update, erase, mount /system, etc. but I don't think I can root this tablet with it, without custom rom. I have suspicion it failed to boot twrp.img and fallback to stock img as for a second android image with red mark flashed on screen before stock recovery opened.
My question is how to boot twrp.img I have flashed earlier. I've tried
Code:
fastboot boot twrp.img
but it booted normally to android
On this tablet to get into bootloader you must hold Vol+ and Power. Bootloader is really simple, only recovery, normal boot, fast boot are there. Navigation with Vol+, confirmation with Vol-. Selecting Recovery gets me to stock Android Recovery even after flashing twrp.img
I've also tried kingo root and kingroot without success.
Anyone has any ideas, suggestions how to get twrp working on this device or root it? If you think it's twrp.img problem do you have any tips on building custom twrp.img for this tablet?

Related

[REF] Unbricking Station!

Oh no! Looks like your kindle wont boot! Dont worry, this thread got ya covered. Welcome to the Unbricking Station!
NOTE: I DO NOT TAKE RESPONSIBILITY IF THESE METHODS WILL MAKE YOUR DEVICE WORSE. USE AT YOUR OWN RISK.
1. I have a red screen at boot-up. What should i do?
This happens when you install the 2nd bootloader when you are on
software version 7.3.0 or higher, even though you downgraded to 7.2.3 the 7.3.0-7.X.X bootloader will retain.
SOLUTION: Flashing the 7.2.3 uboot file will do the trick by booting into fastboot with a fastboot cable and type these commands
fastboot -i 0x1949 flash bootloader kfhd7-u-boot-prod-7.2.3.bin
or if that doesnt work and you have backed-up your stock boot, recovery, and system type these
fastboot -i 0x1949 flash boot stock-boot.img
fastboot -i 0x1949 flash recovery stock-recovery.img
fastboot -i 0x1949 flash system stock-system.img
2. When i bootup it just gets stuck in the blue kindle fire logo or the bootanimation. What should i do?
This happens when you installed the 2nd bootloader successfully and you might have killed a binary during stack installation, or you might have messed with the system files of your OS.
SOLUTION: If you can boot up to TWRP (recovery), you can just flash the stock Amazon OS or CyanogenMod once again.
Booting to recovery can be done by just pressing the volume up button while in the ORANGE kindle fire logo, after that just press install and select which OS you had before the error.
Amazon OS: http://forum.xda-developers.com/showthread.php?t=2218475
CyanogenMod 10.1: http://forum.xda-developers.com/showthread.php?t=2245335
Use adb sideload, if you don't have these files on the kindle's internal storage.
Go to advanced, then to ADB Sideload.
While in your computer, go to a command prompt and type
Adb sideload *osfilename*.zip
After that, it will install itself and you are good to go!
3. When i flashed FireFireFire/broke the bootloader, it wont startup, what should I do?
You flashed a incompatible bootloader (1st Gen) on a 2nd Gen device.
SOLUTION: Your best bet is just send it back for a replacement.
If anyone have anymore methods to unbrick their device, send me a PM to get a chance for your method to be featured in this thread.
Credits to Hashcode for the bootloader and to Amazon for a wonderful device. xD

[Q] Cannot Root A510

I have been looking to Root my A510 and drop KitKat on it, but I am stuck trying to install the recovey,img
Steps completed so far:
Bootloader unlocked
adb reboot-bootloader
fastboot oem unlock
fastboot reboot​
Obtained the recovery image 6.0.4.5
Loaded recovery image
adb reboot bootloader
fastboot flash recovery c:\AndroidRootTablet\recovery.img
fastboot reboot (holding volume down)​
Just boots up normally... I can get into the stock recovery using adb reboot recovery, but I see no way to add the recovery image...
A510 version is 4.1.2
I probably have this out of order, but I tried to root the tablet first, but that didn't work either. A few questions:
-- Do I need root before installing the recovery.img?
-- What is the current recommendation for rooting the A510?
This is what I tried to use for rooting:
http://theunlockr.com/2013/06/15/how-to-root-the-acer-iconia-tab-a510/
No need to root before flashing a recovery
You have to reboot in recovery directly after flashing it via fastboot and flash the zip "disable stock recovery"
With a JB bootloader you have to : Hold Volume- (**), and when vibrate, release it and hold Volume+(*) until the recovery load
If you reboot in Normal mode, the Acer ROM will erase the recovery.
Check the initial CWM thread with it's installation guide: http://forum.xda-developers.com/showthread.php?t=1866378
Could be applied with any version of custom recovery
A510 Updated to KitKat
Thank you sir for you help. That hit the spot. I greatly appreciate the work you are doing with the A510.

phone booting into default recovery even after flashing twrp (xiaomi redmi note 4)

whenever i try to go into recovery mode, it takes me to the default one even after i flashed twrp. my bootloader is unlocked and i flashed twrp several times. even when i use the command prompt from fastboot mode it still takes me to the default recovery. any ideas to what's wrong?
Asafbzm said:
whenever i try to go into recovery mode, it takes me to the default one even after i flashed twrp. my bootloader is unlocked and i flashed twrp several times. even when i use the command prompt from fastboot mode it still takes me to the default recovery. any ideas to what's wrong?
Click to expand...
Click to collapse
This could be a solution or a workaround:
"Hello i just had a personal experience with my Asus zenfone selfie Z00T Stock recovery kept replacing TWRP. (Boot loader already unlocked)
This is how i got around it i downloaded the latest TWRP for my device and placed directly in minimal adb and fastboot app folder then i renamed it to recovery .
then i put my device in fastboot mode using the buttons on the phone and After i ran minimal adb and fastboot app as admin then i typed fastboot flash recovery recovery.img
once done i then i typed fastboot boot recovery.img. and my phone booted to twrp recovery then i selected reboot recovery directly on my phone and to finish reboot system (still in twrp) that's it.
(OEM commands to boot from fastboot to recovery do not work on some devices )
it only worked for me eventually because i downloaded the latest TWRP from the official TWRP website.
The idea is to flash the custom recovery and then booting from the custom recovery.img that you just used to flash (the one still on the pc) using minimal adb and fastboot app.
IT may not work on all devices as the commands may change from one device to another but the idea stays the same. (example for nexus fastboot -c "lge.kcal=0|0|0|x" boot recovery.img)
I hope this will help some people out."
sill not booting into twrp
Tiqqy said:
This could be a solution or a workaround:
"Hello i just had a personal experience with my Asus zenfone selfie Z00T Stock recovery kept replacing TWRP. (Boot loader already unlocked)
This is how i got around it i downloaded the latest TWRP for my device and placed directly in minimal adb and fastboot app folder then i renamed it to recovery .
then i put my device in fastboot mode using the buttons on the phone and After i ran minimal adb and fastboot app as admin then i typed fastboot flash recovery recovery.img
once done i then i typed fastboot boot recovery.img. and my phone booted to twrp recovery then i selected reboot recovery directly on my phone and to finish reboot system (still in twrp) that's it.
(OEM commands to boot from fastboot to recovery do not work on some devices )
it only worked for me eventually because i downloaded the latest TWRP from the official TWRP website.
The idea is to flash the custom recovery and then booting from the custom recovery.img that you just used to flash (the one still on the pc) using minimal adb and fastboot app.
IT may not work on all devices as the commands may change from one device to another but the idea stays the same. (example for nexus fastboot -c "lge.kcal=0|0|0|x" boot recovery.img)
I hope this will help some people out."
Click to expand...
Click to collapse
i've just tried this but the 'fastboot boot recovery' command just turn the phone back on from fastboot. thanks anyways!
Tiqqy said:
This could be a solution or a workaround:
"Hello i just had a personal experience with my Asus zenfone selfie Z00T Stock recovery kept replacing TWRP. (Boot loader already unlocked)
This is how i got around it i downloaded the latest TWRP for my device and placed directly in minimal adb and fastboot app folder then i renamed it to recovery .
then i put my device in fastboot mode using the buttons on the phone and After i ran minimal adb and fastboot app as admin then i typed fastboot flash recovery recovery.img
once done i then i typed fastboot boot recovery.img. and my phone booted to twrp recovery then i selected reboot recovery directly on my phone and to finish reboot system (still in twrp) that's it.
(OEM commands to boot from fastboot to recovery do not work on some devices )
it only worked for me eventually because i downloaded the latest TWRP from the official TWRP website.
The idea is to flash the custom recovery and then booting from the custom recovery.img that you just used to flash (the one still on the pc) using minimal adb and fastboot app.
IT may not work on all devices as the commands may change from one device to another but the idea stays the same. (example for nexus fastboot -c "lge.kcal=0|0|0|x" boot recovery.img)
I hope this will help some people out."
Click to expand...
Click to collapse
Work for me. Thanks buddy
This works, thumb up
Asafbzm said:
i've just tried this but the 'fastboot boot recovery' command just turn the phone back on from fastboot. thanks anyways!
Click to expand...
Click to collapse
i have suffered with the same problem for hours until i decided to come here and look for related article , it actually worked and made me wonder that it wasn't that hard to fix it , i just rebooted fastboot and flashed twrp and in the end typed 'fastboot reboot recovery.img
that solved my suffering within 5 seconds. thank you for sharing the knowledge
Tiqqy said:
This could be a solution or a workaround:
"Hello i just had a personal experience with my Asus zenfone selfie Z00T Stock recovery kept replacing TWRP. (Boot loader already unlocked)
This is how i got around it i downloaded the latest TWRP for my device and placed directly in minimal adb and fastboot app folder then i renamed it to recovery .
then i put my device in fastboot mode using the buttons on the phone and After i ran minimal adb and fastboot app as admin then i typed fastboot flash recovery recovery.img
once done i then i typed fastboot boot recovery.img. and my phone booted to twrp recovery then i selected reboot recovery directly on my phone and to finish reboot system (still in twrp) that's it.
(OEM commands to boot from fastboot to recovery do not work on some devices )
it only worked for me eventually because i downloaded the latest TWRP from the official TWRP website.
The idea is to flash the custom recovery and then booting from the custom recovery.img that you just used to flash (the one still on the pc) using minimal adb and fastboot app.
IT may not work on all devices as the commands may change from one device to another but the idea stays the same. (example for nexus fastboot -c "lge.kcal=0|0|0|x" boot recovery.img)
I hope this will help some people out."
Click to expand...
Click to collapse
I had the same issue on Poco F1 and this worked for me as well! Pleasant surprise. First result on google was this article and it worked, 2 minutes work.
Lamantin001 said:
I had the same issue on Poco F1 and this worked for me as well! Pleasant surprise. First result on google was this article and it worked, 2 minutes work.
Click to expand...
Click to collapse
Okay, I was a bit too early with that. The next time I turned off the phone and tried booting to recovery (Vol up+pwr), I got booted into factory recovery (mi-recovery 3.0) :/
Lamantin001 said:
Okay, I was a bit too early with that. The next time I turned off the phone and tried booting to recovery (Vol up+pwr), I got booted into factory recovery (mi-recovery 3.0) :/
Click to expand...
Click to collapse
Update:
I found the solution. I followed the steps in this article:
How can I keep MIUI from overwrite TWRP with stock recovery after a ROM flash?
I'm on fw Global 9.6.6.0. (Bought the phone 'bogus' unlocked with "fake" 9.6.4.0, bricked it while trying to restore chinese fw and re-lock bootloader using miflash - I'm not doing that again brought it back to life using the steps from...
forum.xda-developers.com
Asafbzm said:
whenever i try to go into recovery mode, it takes me to the default one even after i flashed twrp. my bootloader is unlocked and i flashed twrp several times. even when i use the command prompt from fastboot mode it still takes me to the default recovery. any ideas to what's wrong?
Click to expand...
Click to collapse
Try this:
when you are in fastboot mode type:
Code:
fastboot boot recovery.img
This command will boot your phone to twrp. Install twrp .zip file (there are 2 options when installing .img or .zip)
after this go to ADB/Sideload - This is in Advanced section
Then swipe to start a sideload. Now on your pc type:
Code:
adb sideload recovery.zip
This worked for me. I hope this works for you too

Stuck on "Bootloader is unlocked" screen, can't boot into recovery

So I wanted to root my op6 after updating to android 10
(OnePlus6Oxygen_22_OTA_041_all_1911142043_dde113e53cd0f9.zip)
I tried booting into twrp via fastboot using fastboot flash boot twrp.img (twrp-3.3.1-x_blu_spark_v9.101_op6.img, my bootloader is unlocked).
I then tried rebooting directly into twrp, but now it's just stuck on the "Bootloader is unlocked" screen.
I can still boot into fastboot, but I can't boot into recovery or reboot normally since it just gets stuck on the bootloader unlocked screen.
Please Help!
Edit1: Changing my boot slot from b to a gives me access to the stock recovery. not sure where to go from here though.
Edit2:Fortunately, ManikandanGuru had uploaded the stock boot.img, which works perfectly.
happened to me too. you just did a mistake and flashed the twrp recovery not to the recovery directory, you flashed it to the boot. if you want to make your recovery "twrp recovery", you just needed to do "fastboot flash recovery twrp.img. and if you want to make the "twrp recovery" only once (recommended), just do "fastboot boot twrp.img". now the only thing you can do is to flash the stock boot.img, like you did, or just to send your phone to phones fixing lab (like i did). it's much better and safe. they just flash on your phone the original oneplus 6 boot.img, not the stock one.
btw, i recommend you to use other twrp.img that built specially for android 10 (its safe, i use it). you can download it from https://drive.google.com/file/d/1Ndts4-CLP3o0kvs8wL40w3HLoyqMfwfy/view?usp=sharing (dont worry i uploaded it by myself).
good luck
Happen to me yesterday....boot on bootloader and use some tools from Mauro frio to reinstall everything with a batch-file...

not going into system after flashing twrp via fastboot

this is not troll, i just forgot command, but i understand where is problem, i just need help in issuing command, and also keeping TWRP after booting in system
okay, this is not usuall getting stuck in twrp after flashing it via fastboot.
i just need help how to boot , system
because way i installed it, is via fastboot:
' fastboot flash recovery twrp.img '
done good
but i mistakenly followed tutorial , and executed what they said should be okay (i mean it is okay, to boot it into recovery, but my phone manufacturer is stupid and don't include proper fastboot)
so i typed command
' fastboot boot recovery '
which it booted into recovery, and when i reboot into 'system' from twrp it boots into system. i had same issue, but i forgot command how to do this (and link to that solution also)
i just know that, last command, my phone misinterpret it , to boot recovery as boot way. instead of kernel, boot.img
------------------------------------------
because we have beautifull documentation on fastbood issued by google, i don't know how to make it boot system, i mean, boot.img
and, i want it to keep twrp installed, suprisingly, when i go power + volume up , sometimes it brings stock recovery and sometimes twrp.
for now, help me how to issue command, to boot kernel and not recovery
- and phone is: Allview Viva H801 , android 5.0
yea, some no name, that's why i'm asking for help
---------------
EDIT:
i think i managed to permamently flash TWRP, which was purpose, because now I can, use power on + volume up , and it always brings up TWRP (yay)
but now, i don't know how i can access bootloader (fastboot) , if i need to issue commands you instruct me to issue. i can use only twrp
kraken-gz said:
this is not troll, i just forgot command, but i understand where is problem, i just need help in issuing command, and also keeping TWRP after booting in system
okay, this is not usuall getting stuck in twrp after flashing it via fastboot.
i just need help how to boot , system
because way i installed it, is via fastboot:
' fastboot flash recovery twrp.img '
done good
but i mistakenly followed tutorial , and executed what they said should be okay (i mean it is okay, to boot it into recovery, but my phone manufacturer is stupid and don't include proper fastboot)
so i typed command
' fastboot boot recovery '
which it booted into recovery, and when i reboot into 'system' from twrp it boots into system. i had same issue, but i forgot command how to do this (and link to that solution also)
i just know that, last command, my phone misinterpret it , to boot recovery as boot way. instead of kernel, boot.img
------------------------------------------
because we have beautifull documentation on fastbood issued by google, i don't know how to make it boot system, i mean, boot.img
and, i want it to keep twrp installed, suprisingly, when i go power + volume up , sometimes it brings stock recovery and sometimes twrp.
for now, help me how to issue command, to boot kernel and not recovery
- and phone is: Allview Viva H801 , android 5.0
yea, some no name, that's why i'm asking for help
---------------
EDIT:
i think i managed to permamently flash TWRP, which was purpose, because now I can, use power on + volume up , and it always brings up TWRP (yay)
but now, i don't know how i can access bootloader (fastboot) , if i need to issue commands you instruct me to issue. i can use only twrp
Click to expand...
Click to collapse
Connect to adb while booted into TWRP and type the command:
adb reboot bootloader
That "should" boot into fastboot
For future reference, when flashing TWRP via fastboot, immediately after you flash the TWRP.img, enter the command:
adb reboot recovery
That should boot straight into TWRP and keep TWRP. If you let the device boot into any other mode than recovery, it will revert back to stock recovery, you have to boot directly into TWRP immediately after flashing it in order to keep TWRP.

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