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[Q] fastboot flash recovery problem? "variable not supported"

Not sure if this belongs over here in Q/A as a new thread, or if I should append this to shabbypenguin's root thread. I am attempting to root my Photon Q following shabbypenguin's method. I downloaded the latest SDK bundle, installed latest Motorola drivers, successfully unlocked the bootloader.
I can't seem to get any recovery images to flash correctly at this point, though. When I run "fastboot flash recovery cwmrecovery.img" I get the following output:
Code:
(bootloader) Variable not supported!
target reported max download size of 31457280 bytes
sending 'recovery' (6632 KB)...
OKAY [ 0.519s]
writing 'recovery'...
OKAY [ 2.363s]
finished. total time: 2.885s
Not sure if "Variable not supported" is a normal message or not, but otherwise it appears to have completed successfully? But when I reboot into recovery mode, I always get the android with a red triangle screen, like this. I have tried flashing shabbypenguin's CWM recovery image, the latest TWRP recovery image, and the stock recovery image linked to in this thread. Same result every time; red triangle screen.
My phone is running the updated OTA build (77.8.10). Is that what is hindering my ability to flash and root successfully? Not sure where else I could have gone wrong. The only other thing I can think of is that before starting with all this, I did have encryption enabled on the phone. But before unlocking the bootloader and attempting to flash CWM recovery, I performed a factory reset to remove the encryption.
UPDATE: it doesn't actually seem like the recovery images are getting flashed at all. At first I thought something was being corrupted (given the red triangle).
But if I press the Up/Down Vol buttons on that screen, I get the Android system recovery utility menu. So if a recovery flash had occurred, this would have been overwritten, right?
I'd be grateful for any suggestions of what to try at this point.

i've never seen that bootloader message before, but it seems like your recovery might be getting flashed back to stock when you reboot. another guy had this issue, you might hopefully be able to solve it by reading this short thread here:
http://forum.xda-developers.com/showthread.php?t=2017748
edit; in short, you could try rooting with Motofail2go: http://forum.xda-developers.com/showthread.php?t=1940594, then use your SU priviledge to rename recovery-from-boot.p to recovery-from-boot.bak,(in /system), then reflash recovery of choice and it should stick.

Thanks yogi! That was indeed my problem as well. I hadn't come across that thread in my initial searching, so I really appreciate your ultra fast response and the sage solution you figured out in the earlier thread. You rock!

Ah, glad that worked for you also! I'm not sure why some people have had to do that, while I don't think I ever did(I have a file named recovery-from-boot.bak, but I don't think I actively renamed it). I am also not sure why we have have an unlockable bootloader, yet without a 3rd-party exploit, some people are getting stuck

In shabbys supersu zip the script had it rename that boot on recovery file. Maybe people are skipping that step after flashing recovery or moto changed the file location and it doesnt match shabbys original script now.
Sent from my XT897 using Tapatalk 2

Rangerbry said:
In shabbys supersu zip the script had it rename that boot on recovery file. Maybe people are skipping that step after flashing recovery or moto changed the file location and it doesnt match shabbys original script now.
Sent from my XT897 using Tapatalk 2
Click to expand...
Click to collapse
Ah ok, i figured something was renaming that file. The thing is, is there a way to boot straight into recovery from the bootloader? I've always had to boot into the system and then adb reboot recovery.

just hold up like normal after
fastboot reboot

ah yes ok, i guess people should do that after flashing recovery so they can get SU flashed before losing their recovery. and we'll see if Shabby's SU zip still disables that recovery file. i guess that's sort of standard procedure on phones in general, but i don't think i ever did that on this device.

Nice, thanks! Yeah, I was booting back in to system and doing adb reboot recovery as well. The couple blog write-ups I was following weren't clear on that aspect, but then, using the hardware buttons to force it directly to recovery makes perfect since; wondering why I didn't think about that at the time.

Guys!
I have the same problem!
My phone version XT925:
4.1.2
unlocked bootloader
no ROOT
Phone not loading to recovery! so I can't install SU.zip, to get ROOT and rename recovery-from-boot.p.
And because my version 4.1.2 I can't use exploit to get root.
I am realy need your help!

Alex42rus said:
Guys!
I have the same problem!
My phone version XT925:
4.1.2
unlocked bootloader
no ROOT
Phone not loading to recovery! so I can't install SU.zip, to get ROOT and rename recovery-from-boot.p.
And because my version 4.1.2 I can't use exploit to get root.
I am realy need your help!
Click to expand...
Click to collapse
Have you done the hardware key method?
Power + down till phone resets than power + up will you are in recovery?
Otherwise use this command in fastboot(meaning you have SDK tools and you open a command window in platform tools folder):
adb reboot recovery
than the phone should reboot itself into recovery
let us know if you need anything else

Hinyo said:
Have you done the hardware key method?
Power + down till phone resets than power + up will you are in recovery?
Otherwise use this command in fastboot(meaning you have SDK tools and you open a command window in platform tools folder):
adb reboot recovery
than the phone should reboot itself into recovery
let us know if you need anything else
Click to expand...
Click to collapse
>Power + down till phone resets than power + up will you are in recovery?
Phone goes to boot menu.
if I select recovery, phone try to load it (green horizontal anroid logo), but after some time it start the system.
>adb reboot recovery
the same.

Alex42rus said:
>Power + down till phone resets than power + up will you are in recovery?
Phone goes to boot menu.
if I select recovery, phone try to load it (green horizontal anroid logo), but after some time it start the system.
>adb reboot recovery
the same.
Click to expand...
Click to collapse
This means you have stock recovery.
Flash a custom recovery - TWRP, CWM, OpenRecovery.
If you are having issues with recovery not sticking, there is a thread right below yours which addresses this.
Especially see this post from kabaldan.

arrrghhh said:
This means you have stock recovery.
Flash a custom recovery - TWRP, CWM, OpenRecovery.
Click to expand...
Click to collapse
Yes, I am tring, but when I do it, I have "variable not supported" message.
Console:
C:\adt-bundle-windows-x86_64\sdk\platform-tools>fastboot flash recovery twrp-hdr
ecovery.img
(bootloader) Variable not supported!
target reported max download size of 31457280 bytes
sending 'recovery' (6678 KB)...
OKAY [ 0.502s]
writing 'recovery'...
OKAY [ 1.960s]
finished. total time: 2.465s
C:\adt-bundle-windows-x86_64\sdk\platform-tools>

Alex42rus said:
Yes, I am tring, but when I do it, I have "variable not supported" message.
Click to expand...
Click to collapse
Please read the link I provided above, and see if it helps you. Or the second post in this thread...

arrrghhh said:
Please read the link I provided above, and see if it helps you. Or the second post in this thread...
Click to expand...
Click to collapse
>Stock OTA update contains /system/etc/install-recovery.sh that will re-flash the recovery to stock any time you boot the android system.
>Boot to custom recovery first before starting the android system after the update
This path realy help me! I go to recovery by presing power + up after recovery.
> and remove this script by using the console or adb shell:
adb shell not connected, and I not find console in recovery, but before reboot recovery ask me to remove "re-install recovery"
great thanks !

Had the same problem trying to flash TWRP to my XT926. Flashing multiple versions of CWM or TWRP gave the same results. (bootloader) variable not supported, but flashing would still appear to proceed ok. However the recovery was always jacked somehow. The only thing that would flash correctly (even with the error) was the stock recovery.
I was using minimal adb & fastboot. Clued in off of a thread off of droid rzr forums (cannot post url due to my new user status) I FINALLY realized I needed to replace the included AOSP binaries with the motorola ones.
Upon replacing the binaries flashing proceeded without error & TWRP was installed & running correctly.
So as this thread came up most of the time when searching for solution to my error, I hope this reply helps.
So, in short double check your version of adb fastboot (or its binaries), your usb drivers, & your recovery is appropriate/ latest update for your phone/ firmware.
Sent from my XT926 using XDA Free mobile app

4ndr01dpilot said:
So, in short double check your version of adb fastboot (or its binaries), your usb drivers, & your recovery is appropriate/ latest update for your phone/ firmware.
Click to expand...
Click to collapse
Thanks for this tip. I used the fastboot version from Motopocalypse instead of my standard ADB installation version, and the variable message stopped appearing. :highfive:

I was puzzled for days being stuck in endless "Flashing recovery ..."
In the end I decided, after saying 1 hour waiting a hypothetical "success/congrats message", NOT QUITTING the current fastboot screen, to select the recovery option in this very fastboot menu (on a Razr i : Vol- to highlight recovery item, then Vol+ to select) and bang I was in TWRP menu. What to do next once in, it is another story.

Desperate for a Root Method for my P8 Max

Hi all,
Well I love my phone, just love it! BUT having bought it from China, like many I am stuck with the Chinese Model and firmware. Huawei Australia have assisted in unlocking the bootloader, now I am ready to root the phone. BUT, I have not had any luck sourcing a root method for it. Can someone please PLEASE help.
I am desperate as it keeps booting me out of Google Play Services, rendering my Huawei watch useless (ironic huh)
Any help would be appreciated. Email me if you like [email protected]
Michael

flash twrp recovery and install root with it very easy way

A Big Thank You and....
rowihel2012 said:
flash twrp recovery and install root with it very easy way
Click to expand...
Click to collapse
That sounds to easy, only question, how do I do that? Is there an instruction manual or guidance anywhere?
I have flashed other phones in the past but this one is stumping me.
I have looked for some of these methods only to be completing surveys that inundate me with spam and phone calls, only to be left without the downloads that I needed. Did I mention how much I love my phone?
Thanks again
Michael

Managed to root my phone.. even when I have updated the EMUI to B018, but there was an issue.. I tell you below
Step I follow from Chinese Forum below...
Preparation step :
1. download the tools from
https://www.mediafire.com/?9drsdo2f6hn4j34
2. Extract the content to your local. Note there are two folders :
- Folder 1 is for the tool that contains the TWRP recovery.img and the adb/fastboot tool,
- Folder 2 is for the original recovery
3. Copy the SuperSU zip to your phone (either in internal or external memory of your phone)
Installation step :
Step 0, unlock your bootloader (search around on how to do it)
1. Since I am using mac, somehow I don't need to install any driver, but if you using windows, install all the driver yourself
2. Enable the developer mode in your phone, and after that enable the usb debugging
3. Turn off your phone, and boot to fastboot (in off mode, connect the phone with your PC then press Volume Up and Power Button together)
4. Since now your phone has been connected to the PC, go to that Tool folder in respective of your OS, then overwrite the recovery with TWRP with fastboot command (install custom recovery) *note : for mac just add "./" in every command
- check the whether its connected : fastboot devices
- install TWRP : fastboot flash recovery recovery.img
5. Restart your phone and boot to recovery
- restart : fastboot reboot
- after reboot, turn off your phone
- reboot to recovery : turn on your phone by holding Volume Down with Power button
- Now you are at TWRP
6. Install SuperSU (root)
- Install SuperSU zip that has already been copied to your phone using TWRP (use the Install mode)
7. Reboot the phone
- Use reboot function in twrp
8. Profit
Theoritically the above things works but I have some issues following the above :
- After step 4, after recovery being flashed with TWRP seems like my phone Boot Partition is being overwritten too
- So when I rebooted the phone, it boot to TWRP instead
- So I tried to re-flashed the recovery with the original EMUI rom recovery (go to the folder "2.P8Max_Official_Recovery(For_restoration)" to find the original recovery.img). Also note that in the this folder, the adb and fastboot is only for mac. The one for windows use it in the tools
- This is done by going to fastboot again, then do command : fastboot flash recovery recovery.img
- This time using the original recovery
- Now when I rebooted the phone, it goes to EMUI recovery, then I just clicked restart to system or something
- After this, everything fixed, and I have SuperSU install and phone rooted
You can follow the above, but do it at your own risk, I am not responsible if your phone brick hehehe..
Original chinese forum is here : http://cn.club.vmall.com/thread-4919441-1-1.html
Click to expand...
Click to collapse
1 min Search

michaeldanielbourke said:
That sounds to easy, only question, how do I do that? Is there an instruction manual or guidance anywhere?
I have flashed other phones in the past but this one is stumping me.
I have looked for some of these methods only to be completing surveys that inundate me with spam and phone calls, only to be left without the downloads that I needed. Did I mention how much I love my phone?
Thanks again
Michael
Click to expand...
Click to collapse
just flash this recovery with fastboot
https://dl.twrp.me/p8/twrp-2.8.7.1-p8.img
fastboot flash recovery twrp-2.8.7.1-p8.img
then enter the recovery with hold power+volume up
install this file with install zip from twrp
https://download.chainfire.eu/696/SuperSU/UPDATE-SuperSU-v2.46.zip?retrieve_file=1
now you have root
very easy

rowihel2012 said:
just flash this recovery with fastboot
https://dl.twrp.me/p8/twrp-2.8.7.1-p8.img
fastboot flash recovery twrp-2.8.7.1-p8.img
then enter the recovery with hold power+volume up
install this file with install zip from twrp
https://download.chainfire.eu/696/SuperSU/UPDATE-SuperSU-v2.46.zip?retrieve_file=1
now you have root
very easy
Click to expand...
Click to collapse
I am so so sorry and a little embarrassed to ask this.
1. I am using the And it sees my phone
2. I am not sure how to fastboot.
3. Do I install the file "install this file with install zip from twrp" onto my device? (p8 max)
Again, I thank you.

michaeldanielbourke said:
I am so so sorry and a little embarrassed to ask this.
1. I am using the And it sees my phone
2. I am not sure how to fastboot.
3. Do I install the file "install this file with install zip from twrp" onto my device? (p8 max)
Again, I thank you.
Click to expand...
Click to collapse
1-shut down the phone
2-connect the usb cable with holding volume down .now you will be in bootloader
3-open cmd command in windows
4-type (fastboot flash recovery recovery.img (you must before rename the recovery file to recovery.img)
5-now after flashing the recovery .hold power+volume up to enter recovery
6-then install the root zip file
7-reboot the phone

You are so so helpful.
rowihel2012 said:
1-shut down the phone
2-connect the usb cable with holding volume down .now you will be in bootloader
3-open cmd command in windows
4-type (fastboot flash recovery recovery.img (you must before rename the recovery file to recovery.img)
5-now after flashing the recovery .hold power+volume up to enter recovery
6-then install the root zip file
7-reboot the phone
Click to expand...
Click to collapse
I will try this when i get home. I am always confused by the process. I am to old for all of this
Michael

BTW you will get in a Bootloop if your dont know how to exit I would not root your phone!

Sadly, this does not work for me. I did everything you suggested and in the command window I get nothing

I know the risks ( I think)
Hirs_E_Fruit said:
BTW you will get in a Bootloop if your dont know how to exit I would not root your phone!
Click to expand...
Click to collapse
Thanks so much for your concern, I know. But I love the phone but need to make it more Android (Google) friendly as it has Chinese firmware which keeps ending any relationship I have with google play services thus rendering the phone useless (almost)

You have been so helpful
rowihel2012 said:
1-shut down the phone
2-connect the usb cable with holding volume down .now you will be in bootloader
3-open cmd command in windows
4-type (fastboot flash recovery recovery.img (you must before rename the recovery file to recovery.img)
5-now after flashing the recovery .hold power+volume up to enter recovery
6-then install the root zip file
7-reboot the phone
Click to expand...
Click to collapse
I did all you suggested and I could not get it to I renamed the file and as you can see I did a command entry and can see my device which is in faboot and rescue mode (phone unlocked) then I type the command you suggested fastboot flash recovery recovery.img and I get this message
I just do not know what I am doing here

Have u unlocked the bootloader?
BTW my method i posted works if u do it right!

michaeldanielbourke said:
I did all you suggested and I could not get it to I renamed the file and as you can see I did a command entry and can see my device which is in faboot and rescue mode (phone unlocked) then I type the command you suggested fastboot flash recovery recovery.img and I get this message
I just do not know what I am doing here
Click to expand...
Click to collapse
The recovery img file link did you downloaded it?
You must download it and but the recovery.img file in fastboot folder
Then rename it to recovery.img.
And open cmd orders from fastboot folder .
Just type
fastboot flash recovery recovery.img

You must download the recovery file into the same folder that you ran your command and in your case "p8 max root". Make sure that the recovery filename is recovery.img instead of some other names.
Sent from my HUAWEI P8max using Tapatalk

Can I just say you have all been so helpful, l am a newb who got cocky and killed my beautiful phone. Now i just get the Huawei logo and no software

What recovery are you on right now? The stock one or twrp?
Sent from my HUAWEI P8max using Tapatalk

Stock
Leechoonhwee said:
What recovery are you on right now? The stock one or twrp?
Sent from my HUAWEI P8max using Tapatalk
Click to expand...
Click to collapse
Hello,
I have twice but now I am stuck on the Huawei logo and powered by Android screen. I can boot into Stock Bootload but no longer TWRP
even though I have reflashed recovery twice. Just chinese language and the EMUI screen with the three options

I think it's time to unroot and flash a new system and do it like i posted, then it will work!

michaeldanielbourke said:
Hello,
I have twice but now I am stuck on the Huawei logo and powered by Android screen. I can boot into Stock Bootload but no longer TWRP
even though I have reflashed recovery twice. Just chinese language and the EMUI screen with the three options
Click to expand...
Click to collapse
Did you reflash recovery2 also?

Installing a Recovery on Xperia M2

Hello all,
Before all, yes I have read many thread about installing a Recovery on this Phone (LB & UB).
So, what I have done :
- Unlock the boot loader following the Sony's guide → OK
- Installing fastboot on my debian →OK
- Flashing boot following this guide : http://forum.xda-developers.com/xpe...2303-cwm-based-recovery-6-0-4-6-root-t2884503 → OK
- Now I have a "Cyanogen recovery"
- I want to change this Recovery to TWRP and I have following this topic : http://forum.xda-developers.com/xperia-m2/general/unlocked-bl-root-sony-xperia-m2-android-t3214498
I write this command :
Code:
fastboot flash recovery RECOVERY-TWRP-2.8.7.0-D230X_D240X-UPDATED-THEME.img
Sending 'recovery'
OKAY
writing 'recovery'
OKAY
finished
But nothing happens I'm still stuck in 'cyanogen recovery'
Any idea what i have done wrong ?
Thank you !
Auze

Auze-Absy said:
Hello all,
Before all, yes I have read many thread about installing a Recovery on this Phone (LB & UB).
So, what I have done :
- Unlock the boot loader following the Sony's guide → OK
- Installing fastboot on my debian →OK
- Flashing boot following this guide : http://forum.xda-developers.com/xpe...2303-cwm-based-recovery-6-0-4-6-root-t2884503 → OK
- Now I have a "Cyanogen recovery"
- I want to change this Recovery to TWRP and I have following this topic : http://forum.xda-developers.com/xperia-m2/general/unlocked-bl-root-sony-xperia-m2-android-t3214498
I write this command :
Code:
fastboot flash recovery RECOVERY-TWRP-2.8.7.0-D230X_D240X-UPDATED-THEME.img
Sending 'recovery'
OKAY
writing 'recovery'
OKAY
finished
But nothing happens I'm still stuck in 'cyanogen recovery'
Any idea what i have done wrong ?
Thank you !
Auze
Click to expand...
Click to collapse
Easy: that Cyanogen Recovery (which is an old version, btw) is stored in the boot image as a separate ramdisk, with a script that pops-up an LED to tell you to decide to open it or not. The TWRP recovery however is in a separate /recovery partition, and it can only be triggered via Vol- + Power until the BIG Sony logo pops-up. That's it. You can have both at the same time if you wish so

linuxct said:
Easy: that Cyanogen Recovery (which is an old version, btw) is stored in the boot image as a separate ramdisk, with a script that pops-up an LED to tell you to decide to open it or not. The TWRP recovery however is in a separate /recovery partition, and it can only be triggered via Vol- + Power until the BIG Sony logo pops-up. That's it. You can have both at the same time if you wish so
Click to expand...
Click to collapse
Hello !
Thx for the reply !
After several try, I never show the TWRP booting. Always stuck on the cynaogen recovery.
I has flashed again the phone with flashboot and the last stock system to reset completly all partitions → OK
I will retest this Week-end without the boot.img (Just TWRP) and let you now.
Thx again !

did you give root access to fastboot command? did you upgrade your bootloader?

dark90 said:
did you give root access to fastboot command? did you upgrade your bootloader?
Click to expand...
Click to collapse
Can't do that, because i am stuck with the cyanogen recovery and unable to start a ROM.
I have used the Flastools to restore an Official Stock Rom due to this.
I will change this phone on fews days, so I will retry later when giving the phone to my nephew.
Thank you for the time spend !
Auze

[SOLVED] Mi4i continuous reboot issue, Fastboot not detecting, MI4i stock recovery

I wanted to try brand new Nougat ROMs. So, I flashed twrp using Mi4i Toolkit and took backup of my MIUI8.
I tried many ROMs and decided to return to my MIUI8 nandroid backup.
But when I tried to restore the nandroid backup, It went successful but after restoring, Phone started rebooting in each 4-5 minutes. Searched and found that many people were facing this issue and they stayed on custom ROMs just because of this issue. So. I thought to create a new thread so this major problem can be easily solved.
How I got it fixed that,
REBOOT ISSUE​
Download Full stock MIUI ROM pack here : http://en.miui.com/download-263.html
1. Boot into TWRP
2. Wipe Dalvik/ART, Cache, Data (Internal Storage not required to wipe)
3. Flash ROM zip.
4. If It gets failed, No need to worry.
5. Go to advanced options in TWRP and select "Fix Contexts".
6. Try flashing Again.
7. It is successful now. Boot device and Perform a full reset ( again deleting Internal storage is not needed.)
8. Here you go, No reboots now, You get brand new performance of MIUI ROM flawlessly
Hit thanks if it works for you or ask me in replies.
Fastboot Not Detecting​
It has been noticed even after installing Minimal ADB and Fastboot drivers properly and performing all adb commands flawlessly, some computers can't detect devices in fastboot mode. Here's the solution.
1. Download Minimal ADB and Fastboot here : https://forum.xda-developers.com/showthread.php?t=2317790
2. Install and extract in a folder
3. Open command prompt in the folder.
4. connect your device in fastboot mode. (By holding power and vol- key, you can enter in fastboot mode)
5. Type
Code:
fastboot devices
and press enter
6. If it detects , then you've no problem.
7. If it doesn't detect go to device manager on your PC ( Press Windows+X, M on win10)
8.It might be detecting your device with some name, look for it.
9. Once you find, choose to uninstall its driver
10. Now click on action in menu bar and "Scan for hardware changes"
11. It now detects your device. If It doesn't, Uninstall and Install ADB drivers again and repeat above steps.
12.
Code:
fastboot devices
now should be showing your device.
MI4i Stock Recovery​
Found stock recovery on MIUI forum for MI4i but there's a problem with that. It shows option to wipe External SD (which isn't supported for MI4i), So I doubt this could be pulled from the same MI4i.
So, I backed up Genuine MI4i Stock Recovery from my MI4i with flashify.
Steps:
1. Boot into fastboot mode.
2. Connect with PC and open command prompt in the same folder of fastboot and ADB
3. Put this file https://docs.google.com/uc?id=0B98eukQ9ePc-NnljcmxjWWJvUHc in same folder
4. Type
Code:
fastboot flash recovery mi4istockrecovery
press enter
5. Cheers! You're now on stock recovery.
6. Boot into recovery mode to verify.
Hit thanks if helped

madhurajkumar said:
7. If you are unable to flash stock recovery, bootloader maybe locked, unlock the bootloader and then try again.
Click to expand...
Click to collapse
The bootloader never locks for the Mi4i ? why'd you add a step for this ?

sharan.nyn said:
The bootloader never locks for the Mi4i why'd you add a step for this ?
Click to expand...
Click to collapse
Read it somewhere, so thought to add. Edited

madhurajkumar said:
I wanted to try brand new Nougat ROMs. So, I flashed twrp using Mi4i Toolkit and took backup of my MIUI8.
I tried many ROMs and decided to return to my MIUI8 nandroid backup.
But when I tried to restore the nandroid backup, It went successful but after restoring, Phone started rebooting in each 4-5 minutes. Searched and found that many people were facing this issue and they stayed on custom ROMs just because of this issue. So. I thought to create a new thread so this major problem can be easily solved.
How I got it fixed that,
REBOOT ISSUE
Download Full stock MIUI ROM pack here : http://en.miui.com/download-263.html
1. Boot into TWRP
2. Wipe Dalvik/ART, Cache, Data (Internal Storage not required to wipe)
3. Flash ROM zip.
4. If It gets failed, No need to worry.
5. Go to advanced options in TWRP and select "Fix Contexts".
6. Try flashing Again.
7. It is successful now. Boot device and Perform a full reset ( again deleting Internal storage is not needed.)
8. Here you go, No reboots now, You get brand new performance of MIUI ROM flawlessly
Hit thanks if it works for you or ask me in replies.
Fastboot Not Detecting
It has been noticed even after installing Minimal ADB and Fastboot drivers properly and performing all adb commands flawlessly, some computers can't detect devices in fastboot mode. Here's the solution.
1. Download Minimal ADB and Fastboot here : https://forum.xda-developers.com/showthread.php?t=2317790
2. Install and extract in a folder
3. Open command prompt in the folder.
4. connect your device in fastboot mode. (By holding power and vol- key, you can enter in fastboot mode)
5. Type
and press enter
6. If it detects , then you've no problem.
7. If it doesn't detect go to device manager on your PC ( Press Windows+X, M on win10)
8.It might be detecting your device with some name, look for it.
9. Once you find, choose to uninstall its driver
10. Now click on action in menu bar and "Scan for hardware changes"
11. It now detects your device. If It doesn't, Uninstall and Install ADB drivers again and repeat above steps.
12.now should be showing your device.
MI4i Stock Recovery
Found stock recovery on MIUI forum for MI4i but there's a problem with that. It shows option to wipe External SD (which isn't supported for MI4i), So I doubt this could be pulled from the same MI4i.
So, I backed up Genuine MI4i Stock Recovery from my MI4i with flashify.
Steps:
1. Boot into fastboot mode.
2. Connect with PC and open command prompt in the same folder of fastboot and ADB
3. Put this file https://docs.google.com/uc?id=0B98eukQ9ePc-NnljcmxjWWJvUHc in same folder
4. Type
press enter
5. Cheers! You're now on stock recovery.
6. Boot into recovery mode to verify.
Hit thanks if helped
Click to expand...
Click to collapse
can you help us about hardbricked Mi4i? what should we do a proper guide can make a huge support to me
There is no led, only access to fastboot mode but when i tried to flash stock rom via miflash the whole completed in just 2 sec and phone doesn't boot up completely and stuck again

aa_vi said:
can you help us about hardbricked Mi4i? what should we do a proper guide can make a huge support to me
There is no led, only access to fastboot mode but when i tried to flash stock rom via miflash the whole completed in just 2 sec and phone doesn't boot up completely and stuck again
Click to expand...
Click to collapse
If you can boot into fastboot mode,
Flash twrp from your pc using Minimal adb and fastboot.
If you face issues and need help about this, Ask me

i flashed a fastboot mode rom through cmd everything goes perfect there is no issue in the whole process but after reboot it does not reboot only show mi logo and turn off then the display of device fluctuate again and again i never experience this issue
suggest something

aa_vi said:
i flashed a fastboot mode rom through cmd everything goes perfect there is no issue in the whole process but after reboot it does not reboot only show mi logo and turn off then the display of device fluctuate again and again i never experience this issue
suggest something
Click to expand...
Click to collapse
Which ROM?
This issue is called Bootloop.
1.Flash twrp through cmd
2. Wipe everything ( except the internal storage, as it's not needed )
3. Try repeating the same.
If you again face the issue, try downloading flashable zip of the same ROM and try flashing via twrp.

madhurajkumar said:
Which ROM?
This issue is called Bootloop.
1.Flash twrp through cmd
2. Wipe everything ( except the internal storage, as it's not needed )
3. Try repeating the same.
If you again face the issue, try downloading flashable zip of the same ROM and try flashing via twrp.
Click to expand...
Click to collapse
Thanks! it worked but there is a little bit problem the internal. memory of device is reducing to 2.57 gb instead of 12.xx gb what the hell is this the partion of memory is reduced to this much

aa_vi said:
Thanks! it worked but there is a little bit problem the internal. memory of device is reducing to 2.57 gb instead of 12.xx gb what the hell is this the partion of memory is reduced to this much
Click to expand...
Click to collapse
Partition Issues there.
Boot into twrp
Go to wipe
Select System
Tap on "Repair or Change File System"
Confirm the action
Repeat the same for data and cache partitions ONE BY ONE ( you can select one partition once)
Now after formatting all the partitions,
Wipe all partitions
Flash the ROM zip through TWRP
Reboot

madhurajkumar said:
Partition Issues there.
Boot into twrp
Go to wipe
Select System
Tap on "Repair or Change File System"
Confirm the action
Repeat the same for data and cache partitions ONE BY ONE ( you can select one partition once)
Now after formatting all the partitions,
Wipe all partitions
Flash the ROM zip through TWRP
Reboot
Click to expand...
Click to collapse
when we select system it show a warning in that is says some roms and kernels didn't support this and at bottom some options are shown
EXT2
EXT3
EXT4
FAT
exFAT
F2FS
which option supports the process?

aa_vi said:
when we select system it show a warning in that is says some roms and kernels didn't support this and at bottom some options are shown
EXT2
EXT3
EXT4
FAT
exFAT
F2FS
which option supports the process?
Click to expand...
Click to collapse
Try Ext4

Help
help my xiaomi mi4i cannot solved it ,
target reported max download size of 268435456 bytes
sending 'recovery' (32768 KB)...
OKAY [ 1.030s]
writing 'recovery'...
FAILED (remote: flash write failure)
finished. total time: 1.404s

dstyo said:
help my xiaomi mi4i cannot solved it ,
target reported max download size of 268435456 bytes
sending 'recovery' (32768 KB)...
OKAY [ 1.030s]
writing 'recovery'...
FAILED (remote: flash write failure)
finished. total time: 1.404s
Click to expand...
Click to collapse
What is your miui version currently? And which twrp you use that has 32mb? 3.1.1.1 only 24mb if im not mistaken

yumm91 said:
What is your miui version currently? And which twrp you use that has 32mb? 3.1.1.1 only 24mb if im not mistaken
Click to expand...
Click to collapse
i'm not used twrp , but i install mi4istockrecovery still failed. my miui version is 7 , now my phone stuck in mi logo if i restarted my phone then always started fastboot mode , i still confused

dstyo said:
i'm not used twrp , but i install mi4istockrecovery still failed. my miui version is 7 , now my phone stuck in mi logo if i restarted my phone then always started fastboot mode , i still confused
Click to expand...
Click to collapse
I would suggest you to first install TWRP, then flash the stock ROM from TWRP and then flash mi4i stock recovery in fastboot mode. ( As I faced similar issue and got it solved this way. )

dstyo said:
i'm not used twrp , but i install mi4istockrecovery still failed. my miui version is 7 , now my phone stuck in mi logo if i restarted my phone then always started fastboot mode , i still confused
Click to expand...
Click to collapse
The easiest way to do this is by dowloading fastboot ROM for your miui version. Once you extract the files, there will be a recovery.img inside.
Then u can flash the recovery via fastboot flash recovery recovery.img to return the recovery to stock.
Done.

Help needed
I hae this same problem my MI4i is stuck in fastboot mode it's not even going off. Device's bootloader is locked so can't flash twrp

aamir93 said:
I hae this same problem my MI4i is stuck in fastboot mode it's not even going off. Device's bootloader is locked so can't flash twrp
Click to expand...
Click to collapse
Try to boot into twrp by using this command
rename downloaded twrp img file to twrp.img
connect in fastboot mode and in Minimal ADB ad Fastboot cmd, type
Code:
fastboot boot twrp.img

wich rom ?
aa_vi said:
Thanks! it worked but there is a little bit problem the internal. memory of device is reducing to 2.57 gb instead of 12.xx gb what the hell is this the partion of memory is reduced to this much
Click to expand...
Click to collapse
I try rom global stable and china dev but just stay bootlop in miui boot

Mi4i twrp flash without data loss
madhurajkumar said:
If you can boot into fastboot mode,
Flash twrp from your pc using Minimal adb and fastboot.
If you face issues and need help about this, Ask me
Click to expand...
Click to collapse
Mi4i device stuck at mi logo (Came to know this is called Bootloop, Note that not flashed or installed anything on device automatically this issue happened) .As non technical person i need help from you guys to get my device alive. I need to save all my data in the mobile so Googled some topics and came to know that for this i have to flash TWRP in fastboot mode where we can able to save the data . Can anybody help me on this?
Really appreciate your support ....!!!!

[GUIDE][RECOVERY][Z010D][Z010DD]How to install TWRP Recovery

Disclaimer
Code:
/*
*
* Your warranty is now void.
* We are not responsible for anything that may happen to your phone by installing any custom ROMs and/or recoverys, kernels.
* You do it at your own risk and take the responsibility upon yourself and you are not to blame us or XDA and its respected developers.
*
*/
GUIDE OF HOW TO INSTALL TWRP RECOVERY ON ZENFONE MAX (Z010D & Z010DD)​1º Step:
- You need an Unlocked Bootloader:
- for SD410 (MSM8916/Z100D).
- for SD615 (MSM8939/Z10DD).
2º Step:
- You need minimal adb fastboot.
3º Step:
- You need to download TWRP Recovery:
- for SD410 (MSM8916/Z010D).
- for SD615 (MSM8939/Z100DD).
Put the recovery on the folder of minimal adb fastboot and rename it to recovery.
4º Step:
Run the Minimal Adb and Fastboot as adminstrator.
5º Step:
Go to Bootloader (CSC MODE) mode on your phone (Press and HOLD Volume Up Key+Power Key) enter the following commands:
Code:
[SIZE="2"]fastboot devices[/SIZE]
If you see a serial then you are you ready to flash the recovery to flash you need to do the follow command:
Code:
[SIZE="2"]fastboot flash recovery recovery.img[/SIZE]
6º Step:
After flashing the TWRP recovery, you should boot directly into recovery by holding Volume Down+Power Button do not allow device to boot into the stock rom at first boot, otherwise stock recovery will be restored!
Credits:
To the developers!

Reserved

shirofficial said:
After flashing the TWRP recovery, you should boot directly into recovery by holding Volume Down+Power Button do not allow device to boot into the stock rom at first boot, otherwise stock recovery will be restored!
Click to expand...
Click to collapse
So what to do after I booted into Recovery first. Can I go back to stock rom afterwards?

Sayan44 said:
So what to do after I booted into Recovery first. Can I go back to stock rom afterwards?
Click to expand...
Click to collapse
Yes you can. :good:

bro my device is asus zenfone max asus z010d snapdragon 410 version
https://androidfilehost.com/?fid=745849072291687209
is the above linked recovery correct for my device??

krishna8691 said:
bro my device is asus zenfone max asus z010d snapdragon 410 version
https://androidfilehost.com/?fid=745849072291687209
is the above linked recovery correct for my device??
Click to expand...
Click to collapse
Yes it is :good:

I have already rooted can i just flash the recovery through app

hi sir.. i just wanna adk the solution for the error 404? i can't install the twrp in my unit.. what i need to do? the adb can't detect my phone..

shirofficial said:
Yes it is :good:
Click to expand...
Click to collapse
Hi bro I am tharun twrp is not installing properly in my ASUS...what to do for that?

Hy Sir
After Twrp Flash
When I try to boot into Twrp ,phone freezes at Asus logo & next time when I try to boot into Twrp by restarting boots into stock recovery
Tried a lot of time ,did lot's of attempts
Please help me

Hello can anyone please help me,
I followed every thing but it's asking for password when I boot into recovery then press cancel and wipe the phone (factory reset). Via twrp as I saw in one website but next time when I reboot it's I "Qualcomm diagnostic mode 9006" please help me to come out of this it's my friend phone
Thank you

how do I boot into recovery from CSC mose ..power up + vol. down donot lead anywhere ..lomg pressing power buttton results in rebooot

I cant go to twrp after done flash img from adb
After done flash twrp img file through adb on asus z010d by pressing vol up and power key i cant go to twrp . My screen goes of the exact time twrp open. What should i do?
Anybody help me please
My watsapp number is
+917012088399

Is it necessary to root the device first before flashing twrp ?
Because as I flashed twrp image, and then booted firstly into it, and when I tried to reboot my device in stock ROM, it got stuck in Asus logo, I can't start my device anymore ... Please help devs

I have an error
adb>fastboot flash recovery recovery.img
target reported max download size of 268435456 bytes
sending 'recovery' (18036 KB)...
OKAY [ 0.570s]
writing 'recovery'...
FAILED (remote: can't flash unsigned image)
finished. total time: 0.731s
i don't know what to do, please..

tuananhtd09 said:
I have an error
adb>fastboot flash recovery recovery.img
target reported max download size of 268435456 bytes
sending 'recovery' (18036 KB)...
OKAY [ 0.570s]
writing 'recovery'...
FAILED (remote: can't flash unsigned image)
finished. total time: 0.731s
i don't know what to do, please..
Click to expand...
Click to collapse
This is probably because you didn't do step one first. Step one unlocks the bootloader so you shouldn't receive this error when you try to flash recovery. If you can't do step one because android is out of date then you need to update android first. If you can't update android then welcome to the club, you probably have a cn recovery and need to update to ww. This can be down following these instructions assuming you have a z010d/sd410/8916 https://ainotech.com/how-to-flash-firmware-asus-zenfone-max-zc550kl-root-custom-twrp-recovery/ Follow the instructions for AFT.
However now I'm stuck on the bit everyone else is stuck on. Once TWRP is flashed, how to boot directly to that instead of android first??
EDIT: I figured it out. It's because this build of twrp 3.2 and even 3.1 is broken for this device. Flashing twrp 3.0 works fine but of course that doesn't support many modern custom roms so it doesn't really help.

Sharft 6 said:
This is probably because you didn't do step one first. Step one unlocks the bootloader so you shouldn't receive this error when you try to flash recovery. If you can't do step one because android is out of date then you need to update android first. If you can't update android then welcome to the club, you probably have a cn recovery and need to update to ww. This can be down following these instructions assuming you have a z010d/sd410/8916 https://ainotech.com/how-to-flash-firmware-asus-zenfone-max-zc550kl-root-custom-twrp-recovery/ Follow the instructions for AFT.
However now I'm stuck on the bit everyone else is stuck on. Once TWRP is flashed, how to boot directly to that instead of android first??
EDIT: I figured it out. It's because this build of twrp 3.2 and even 3.1 is broken for this device. Flashing twrp 3.0 works fine but of course that doesn't support many modern custom roms so it doesn't really help.
Click to expand...
Click to collapse
oh, thanks. because i didn't do step one first
and now i had a problem bigger @@
https://forum.xda-developers.com/as...ow-to-fix-updating-partition-details-t3867714

you should install the downloaded app on the step number 1 in order to get along with the other steps.

:good: