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How to resolve boot loop problem on android PumpKinx 10.1" tablet

I've android PumpKinx 10.1 tablet with 5.1 Lollipop android os.
I did take backup of its stock recovery image.
Since there is no custom recovery image for this device I tried to flash it with twrp recovery image. But after running below command, device goes into bootloop. I've tried many methods but no success.
fastboot flash:raw boot twrp.img
Any help would be highly appreciated. Thanks in advance.

maybe u have locked bootloader. First turn on oem unlock in developer options, then reboot in bootloader and type
Code:
fastboot oem unlock
Then confirm acion in the tablet whit volume up, then the bootloader now is unlocked.
Note: The tablet get soft reset. Make backup first.
Then try flash the recovery

xdedeone said:
maybe u have locked bootloader. First turn on oem unlock in developer options, then reboot in bootloader and type
Code:
fastboot oem unlock
Then confirm acion in the tablet whit volume up, then the bootloader now is unlocked.
Note: The tablet get soft reset. Make backup first.
Then try flash the recovery
Click to expand...
Click to collapse
Do you understand boot loop or not? First of all fastboot is already unlocked otherwise how I will be able to run above command and since my device is in boot loop then how can I go to developer option?

chitrang200889 said:
I've android PumpKinx 10.1 tablet with 5.1 Lollipop android os.
I did take backup of its stock recovery image.
Since there is no custom recovery image for this device I tried to flash it with twrp recovery image. But after running below command, device goes into bootloop. I've tried many methods but no success.
fastboot flash:raw boot twrp.img
Click to expand...
Click to collapse
Just send them an email asking for stock firmware with flash tool, along with the purchase bill..
Or if it still has warranty, just go to the service center and say something like you over-charged the phone a complete night & since then it's not working and claim warranty..

Have you tried to wipe the cache partition or even factory reset???

Can you please help me unlock OEM on Yu Yuphoria 5010A with android OS.

Hi ,
I have recently purchased a Yu Yuphoria 5010A. I thought it had cyanogen mod but found to have just Android OS.
I have searched this forum for unlocking OEM and installing recovery to install cyanogen mod. I activated allow oem unlock in developers options and then tried to unlock via fastboot . fastboot detects the device but I am unable to unlock oem as it says "remote : oem unlock not allowed " . I was able to temporary boot into cwm recovery using "fastbbot 0x2A96 boot recovery.img" but it was not able to further install the mod.
Can you help with unlock the oem and install cyanogen mod. coz all the steps mentioned in this site and others have failed.
Thank you

Hii I also bought same model and also want cynogenmod os. But I don't know if its possible to flash cynogen os . but I rooted my phone an d its working perfectly. I had same problem of can't open bootloder not allowed to open bootloader. I checked the allow to open OEM in developer option. I guess this model has already unlocked bootloader cause I just rooted it even when it said can't unlock bootloader. You can try it but download stock ROM before if anything goes wrong. And please tell me if I can flash cynogen mod is it safe

shreyash11 said:
Hii I also bought same model and also want cynogenmod os. But I don't know if its possible to flash cynogen os . but I rooted my phone an d its working perfectly. I had same problem of can't open bootloder not allowed to open bootloader. I checked the allow to open OEM in developer option. I guess this model has already unlocked bootloader cause I just rooted it even when it said can't unlock bootloader. You can try it but download stock ROM before if anything goes wrong. And please tell me if I can flash cynogen mod is it safe
Click to expand...
Click to collapse
How you rooted it bro without unlocking the bootloader am also having the issue with oem unlocking

abees said:
How you rooted it bro without unlocking the bootloader am also having the issue with oem unlocking
Click to expand...
Click to collapse
As I said I think the bootloader in y5010A is already unlocked. I have a rooting guide I can upload it if anyone want. You just have to check the allow OEM unlocking in developer option

Guys, please take a look: http://forum.xda-developers.com/yu-yuphoria/help/guide-unlock-bootloader-yu-yuphoria-t3365251

Titokhan said:
Guys, please take a look: http://forum.xda-developers.com/yu-yuphoria/help/guide-unlock-bootloader-yu-yuphoria-t3365251
Click to expand...
Click to collapse
Thanx..but can I flash cynogen is on y5010A.

fastboot model : fastboot oem unlock

shreyash11 said:
Thanx..but can I flash cynogen is on y5010A.
Click to expand...
Click to collapse
you can flash cyanogenmod.. am using it....
Sent from my Hot Tempered Yuphoria

hi all!
when i write fastboot -i 0x2A96 oem unlock, it shows okay finished only. and the device is not unlocked. please help!

coolakash said:
Hi ,
I have recently purchased a Yu Yuphoria 5010A. I thought it had cyanogen mod but found to have just OS.
I have searched this forum for unlocking OEM and installing recovery to install cyanogen mod. I activated allow oem in options and then tried to via fastboot . fastboot detects the device but I am unable to oem as it says "remote : oem not allowed " . I was able to temporary boot into cwm recovery using "fastbbot 0x2A96 boot recovery.img" but it was not able to further install the mod.
Can you help with the oem and install cyanogen mod. coz all the steps mentioned in this site and others have failed.
Thank you
Click to expand...
Click to collapse
download kingroot.apk and then open it( it will unlock bootloader )
and then ownload root checker basic.apk (it will verify the root access )
and then download flashify.apk (it help you to flash twrp)

coolakash said:
Hi ,
I have recently purchased a Yu Yuphoria 5010A. I thought it had cyanogen mod but found to have just Android OS.
I have searched this forum for unlocking OEM and installing recovery to install cyanogen mod. I activated allow oem unlock in developers options and then tried to unlock via fastboot . fastboot detects the device but I am unable to unlock oem as it says "remote : oem unlock not allowed " . I was able to temporary boot into cwm recovery using "fastbbot 0x2A96 boot recovery.img" but it was not able to further install the mod.
Can you help with unlock the oem and install cyanogen mod. coz all the steps mentioned in this site and others have failed.
Thank you
Click to expand...
Click to collapse
did u solve it , m also stuck

Arzan03 said:
did u solve it , m also stuck
Click to expand...
Click to collapse
I had directly flashed cm12.1 fastboot file after that i had unlocked my bootloader
Sent from my YU5010 using Tapatalk

Hi guys
I own a YU-phoria YU-5010 which is Non-rooted and is in Boot loop I have tried to flash my device and install twrp but nothing happens Remote OEM is not allowed and I can not access usb debugging or root my phone can any one help?

Bill1303 said:
Hi guys
I own a YU-phoria YU-5010 which is Non-rooted and is in Boot loop I have tried to flash my device and install twrp but nothing happens Remote OEM is not allowed and I can not access usb debugging or root my phone can any one help?
Click to expand...
Click to collapse
Flash stock ROM first version from firmwarefile.com
Then unlock bootloader after that install twrp.

Unable to unlock bootloader
I have YU5010A model. I got stock Android with 5.1 Version. Now i am trying to unlock bootloader. with " fastboot -i 0x2A96 oem unlock" it return with error " remote oem unlock is not allowed". I want to install Custom ROM AOSP v7.1. I am unable to unlock bootloader. I am also tried by Rooting with Kingo root.
Steps : >>Recovery mode(by pressing upvol + powerbutton)
>> Install package from SD Card
>> Return error " No permision" (in root)
It just like messy. I don't know what is TWRP or CWM. Please help me...

locking Bootloader again?

I unlock the bootloader to install twrp and magisk, it's possible to lock the bootloader again without problems or the phone don't boot?

Toni Moon said:
I unlock the bootloader to install twrp and magisk, it's possible to lock the bootloader again without problems or the phone don't boot?
Click to expand...
Click to collapse
Locking you bootloader while TWRP and Magisk are installed will give you a guaranteed brick. Use a Fastboot Rom to return to stock, then you can lock it

If you want to keep TWRP and root, do not lock the bootloader. As the user mentioned above, you'll brick your device.

if i flash stock rom, than is that ok to lock the bootloader ? and how to lock it ?

majidshahab091 said:
if i flash stock rom, than is that ok to lock the bootloader ? and how to lock it ?
Click to expand...
Click to collapse
If you flash a full stock rom then yes. All you do is use the fastboot rom we talked about earlier, let the phone boot up (don't bother completing the setup process, just let the phone boot up), restart to bootloader, and use the following command from the command prompt on your pc:
Fastboot oem lock
It will give you a menu on your pone asking if you want to lock the bootloader. Tell it yes. It will then lock the bootloader, factory reset the phone, and then boot up normally with the bootloader locked. It's that easy.

ok thanks.one question. is that important to flash the stock rom using fastboot only ? or can i flash it using twrp ?

majidshahab091 said:
ok thanks.one question. is that important to flash the stock rom using fastboot only ? or can i flash it using twrp ?
Click to expand...
Click to collapse
I did it through twrp, worked just fine. Make sure to wipe beforehand though, don't want to risk bricking your phone

majidshahab091 said:
ok thanks.one question. is that important to flash the stock rom using fastboot only ? or can i flash it using twrp ?
Click to expand...
Click to collapse
Doing it with a Fastboot Rom will guarantee that things needing wiped will get wiped. When returning to full stock I will always recommend the Fastboot Rom just because of how it completely handles everything it does flawlessly. I imagine flashing a full rom in TWRP will work but I have never tried to return to stock this way

i did try stock using twrp and it was perfect

I have unlocked bootloader but in the end NOT installed TWRP or root (just wanted to test if i can live without it and still be able to install without wiping everything)
Now I just want to lock bootloader again for selling device.
Can I do so with simple fastboot command "fastboot oem lock" without bricking phone?

TaranQ said:
I have unlocked bootloader but in the end NOT installed TWRP or root (just wanted to test if i can live without it and still be able to install without wiping everything)
Now I just want to lock bootloader again for selling device.
Can I do so with simple fastboot command "fastboot oem lock" without bricking phone?
Click to expand...
Click to collapse
Use msm download tool to be sure. It will however wipe all.

TaranQ said:
I have unlocked bootloader but in the end NOT installed TWRP or root (just wanted to test if i can live without it and still be able to install without wiping everything)
Now I just want to lock bootloader again for selling device.
Can I do so with simple fastboot command "fastboot oem lock" without bricking phone?
Click to expand...
Click to collapse
You can, but if you are selling the phone I would still use a fastboot rom just to be sure everything is wiped and no data sensitive to you is being sold along with the phone.

Thanks a lot for the shared info here. This is just what I need and had been asking myself for quite some time now.??
So never lock bootloader with twrp and magisk installed.

Bootloader lock issue ..

Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....

[email protected] said:
Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....
Click to expand...
Click to collapse
Unlock again with mi bootloader unlocker

[email protected] said:
Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....
Click to expand...
Click to collapse
Unlock the bootloader, Install a Custom Recovery and then clear the partitions, once that's done flash MIUI.
Also make sure to check our the PE forum for any precautionary measures before flashing back to MIUI.

[email protected] said:
Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....
Click to expand...
Click to collapse
Did you found out any solution?

mrstarnge said:
Did you found out any solution?
Click to expand...
Click to collapse
I think unlock Bootloader again using mi unlock tool..... it unlock instantly in my case

[email protected] said:
Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....
Click to expand...
Click to collapse
Unlock the bootloader again and try to flash the Chinese stable rom if you're still having trouble..you can also try to flash the Chinese firmware..

No one can lock the BL again if u flashed PE and Hentai OS unless fastboot rom is flashed via edl. If u never installed PE and Hentai then u can lock it again.

Relock bootloader
Anyone can relock the bootloader after returning from any android 10 based rom except pixel experience and hentai os
Cuz both these two roms use another type of encryption format known as metadata encryption
But still, if you wanna relock then,
You can try a method which I m telling you
Procedure:
Flash miui 11 from custom recovery
Then flash stock recovery and vbmeta image
Then again clean flash miui11 via fastboot method with clean all and lock option enabled
Hope this method will works for you

Hi, I have reverted back from Oxygen OS ROM to MIUI 12 and locked my bootloader. Below are my steps that gave me the desired result
1. Flash miui 11 from custom recovery
2. Then flash stock recovery and vbmeta image
3. Now boot device into fastboot mode and connect to PC
4. Download and extract platform tools folder
5. Launch a powershell / CMD window in the platform tools folder by holding SHIFT+RIGHT CLICK
6. Now first run the command - "fastboot devices" to make sure device is detected
7. Now run the command - "fastboot oem lock"
That's it device will reboot and is now locked. Note that your data will be erased and you need to setup everything again

Wil this method will work for me if I flashed pixel experience rom before?

Tried all methods mentioned above still no luck stock rom has some problems like cts fail and device isn't certified in play store if you keep your bootloader unlocked . Everytime i try system gets destroyed.

Bootloader problem
try mi bootloader Unlocker tool to unlock it opens
In my case it worked

It seems like locking bootloader with custom ROMs installed bricks the device.
Fortunately you can still unlock it with the Mi bootloader unlocker.

relock bootloader but no OS help please

hello,
i did unlock the bootloader for my zenfone 7 pro
and installed twrp recovery then rooted via magisk
cuz I wanted voLTE but it didn't work for me so I wanted to be back to stock
I relock the phone using fastboot command
fastboot oem asus-lock
it did relock my phone
but there is no OS nor Recovery !
when I power my phone on the fastboot UI appears. even if I select recovery nothing changes. opens fastboot only
how to re install the firmware ? help plz

in case anyone has the same problem.
i did solve it by flashing the (raw) firmware via fastboot ( Flash_AFT method )

M-772007 said:
hello,
i did unlock the bootloader for my zenfone 7 pro
and installed twrp recovery then rooted via magisk
cuz I wanted voLTE but it didn't work for me so I wanted to be back to stock
I relock the phone using fastboot command
fastboot oem asus-lock
it did relock my phone
but there is no OS nor Recovery !
when I power my phone on the fastboot UI appears. even if I select recovery nothing changes. opens fastboot only
how to re install the firmware ? help plz
Click to expand...
Click to collapse
There are new guides on how to get volte if you want to try again.
[Guide] Easy method to Enable Volte (with root) on Tmobile and maybe other networks on Android 11 and maybe 10
So first you have to root. I used twrp and magisk. There are guides on how to do that you can find by searching around. Then once you do that, follow these directions, What I did was manually entered all of these setprop commands below, on the...
forum.xda-developers.com
This is one but there are others if you need the help.

After relock bootloader i can send phone to warranty?

I tried to relock the phone with the command "fastboot oem asus-lock", but it shows "waitting for any device" and my phone just sit there and do nothing..
Any other method to relock the Zenfone 7 pro?

M-772007 said:
hello,
i did unlock the bootloader for my zenfone 7 pro
and installed twrp recovery then rooted via magisk
cuz I wanted voLTE but it didn't work for me so I wanted to be back to stock
I relock the phone using fastboot command
fastboot oem asus-lock
it did relock my phone
but there is no OS nor Recovery !
when I power my phone on the fastboot UI appears. even if I select recovery nothing changes. opens fastboot only
how to re install the firmware ? help plz
Click to expand...
Click to collapse
I believe that relock is impossible and but to make the device recovery to installed status of stock rom keeping with unlock bootloader.
Please see my post. May make it help or not.
When I try to burn rom with TWRP, img burns but it doesn't start and zip gives an error and cannot burn.
When I first burned custom ROM (unofficial AEX), it did not start, so when I deleted the data from TWRP, it seems that I deleted things that should not be erased, so even if I burn it from the zip file, with the error message in the image below I...
forum.xda-developers.com