A2017G only EDL mode available, need help with brick - ZTE Axon 7 Questions & Answers

Hello
Long story short, i digged out my axon 7 to use it with some music apps.
I wanted to return the phone to stock firmware, it had unlocked bootloader and running a custom nougat rom (AEX i think).
I followed this thread: https://forum.xda-developers.com/axon-7/how-to/guide-axon-7-universal-unbrick-t3814413 and flashed full EDL package.
Now when i try to turn on the phone, or enter recovery i see the boot logo and quick flash of the commandpromt with a broken droid and the phone turn off again.
I can still enter EDL mode and flash the phone.
Any ideas how i get it up and ruunning gain ? preferably on stock firmware
Thanks

Drunkenmazter said:
Hello
Long story short, i digged out my axon 7 to use it with some music apps.
I wanted to return the phone to stock firmware, it had unlocked bootloader and running a custom nougat rom (AEX i think).
I followed this thread: https://forum.xda-developers.com/axon-7/how-to/guide-axon-7-universal-unbrick-t3814413 and flashed full EDL package.
Now when i try to turn on the phone, or enter recovery i see the boot logo and quick flash of the commandpromt with a broken droid and the phone turn off again.
I can still enter EDL mode and flash the phone.
Any ideas how i get it up and ruunning gain ? preferably on stock firmware
Thanks
Click to expand...
Click to collapse
Use one of the less archaic methods:
Download "EDL Tool" from the ROMs, kernels, development section, along with an EDL package that goes with your phone model. Put your phone in EDL and just flash it with that tool. after that, if it still doesn't boot you have to format data, because you might have conflicting data. If you can't do it from EDL Tool (i think you can, don't remember) just enter the recovery with Vol+ and Power and make a factory reset

My story is very similar and now i'm stuck in EDL mode. I was able to flash stock Oreo B02 EDL package successfully and boot into OS. But after i was trying to unlock bootloader and reboot to recovery, ZTE logo appears for a second or two and then following error message starts looping:
(broken droid logo)
No command
Supported API: 3
E:failed to mount /cache: Invalid argument
E:Can't mount /cache/recovery/last_locale
EDL mode works but if i flash EDL package or boot/recovery again nothing changes, i still get the same error. Can't boot to OS any more and recovery does not work - screen just stays black.
So what are my options now to get it to work again?

From some other threads, I believe you could try to EDL flash Nougat instead of Oreo, it would work better.
https://forum.xda-developers.com/axon-7/help/help-edl-factory-restore-stuck-device-t4031619

I did that already but no luck, i still end up with the same error.
Is there some way to reformat or clean up internal storage completely in EDL mode? It seems that some garbage left behind by trying to unlock bootloader is surviving even EDL ROM flash and breaking OS boot.

xperiaatic said:
I did that already but no luck, i still end up with the same error.
Is there some way to reformat or clean up internal storage completely in EDL mode? It seems that some garbage left behind by trying to unlock bootloader is surviving even EDL ROM flash and breaking OS boot.
Click to expand...
Click to collapse
According to other threads, the problem could be due to "sparse" structure while flashing.
I suggest the following:
- Use Axon 7 EDL toolkit to flash latest official TWRP recovery (for Oreo a specific TWRP would be requied).
- Inside TWRP then wipe data/factory reset and at the utmost Format data. Then retry to boot.
- If not OK, reflash with EDL full ROM and try again.

Already done that for several times with O ja N EDL rom's but no luck. Can't get to recovery nor make system to boot.

Did you successful unlocked bootloader?
If not, I would recommended Axon 7 EDL Tool by djkuz, flashing nougat edl package and unlock it through the options.
Can you get into stock recovery after flashing EDL package? It supposed to have a format option for userdata and cache.
Did you try to get into fastboot mode? Power + Vol up buttons if i'm not wrong.
If so, you could try to format these partitions.
fastboot erase /cache
fastboot erase /data

I have experienced the same problem but I have resolved flashing, with Xiaomi MiFlash (sometimes I use this program because occasionally flashing EDL packages with AxonEDLTool, it gives me problems like this) this package Axon7_RR-O_B32-B10_TREBLE-Ready_Oki20180803_FULL_EDL.
With this EDL, if the flash is successful, you will find NFound recovery 3.2.1-7 installed with which you can make a complete wipe and / or format them with the file system you prefer.
Afterwards, using MiFlash or EDLTool at your discretion, you can flash the EDL of the original system if you prefer.
I'm not an expert but this has solved my problem.
To unlock the bootloader, if the unlocking with EDLTool does not go well (it happened to me just yesterday while I was installing a Rom on another Axon 7), you can use Axon7ToolKit 1.2.1, it always worked well for me.
I hope it can help :fingers-crossed:.

xperiaatic said:
My story is very similar and now i'm stuck in EDL mode. I was able to flash stock Oreo B02 EDL package successfully and boot into OS. But after i was trying to unlock bootloader and reboot to recovery, ZTE logo appears for a second or two and then following error message starts looping:
(broken droid logo)
No command
Supported API: 3
E:failed to mount /cache: Invalid argument
E:Can't mount /cache/recovery/last_locale
EDL mode works but if i flash EDL package or boot/recovery again nothing changes, i still get the same error. Can't boot to OS any more and recovery does not work - screen just stays black.
So what are my options now to get it to work again?
Click to expand...
Click to collapse
Hi, just want to let here my solution for the same problem, it may help others.
I tried to flash A2017G_B10_NOUGAT_FULL_EDL and A2017G_B02_OREO_FULL_EDL but always getting the Can't mount /cache/recovery/last_locale error, phone completely bricked.
So I flashed A2017_B13_FULL_EDL_UNBRICK_DFU using MiFlash through EDL, you can find this here: https://forum.xda-developers.com/axon-7/how-to/a2017-4th-category-brick-repair-manual-t3585898 (if your EDL mode works fine there is no need to disassemble the phone as shown in that tutorial)
Now the phone is completely working, recovery and system, but everything in chinese.
Then I flashed A2017G_B02_OREO_FULL_EDL using MiFlash through EDL, and now everything is working and in english

Thanks a lot for the tip! A2017_B13_FULL_EDL_UNBRICK_DFU did the trick and unbrick the phone.
What i did:
1. used MiFlash to flash A2017_B13_FULL_EDL_UNBRICK_DFU
2. after that A2017G_B03_OREO_FULL_EDL
3. reboot to recovery and performed factory reset
First time I did not perform the factory reset and got stuck on the boot picture without the reset function (power button did not work). Drained the battery and performed factory reset and got the phone working again.
update:
Phone is not stable on B03, some apps crashing from time to time for no apparent reason and also soft reboots happening randomly.
Now I got stuck on the Axon boot screen again after rebooting the phone manually and waiting for the battery to drain ...
i did not install or perform any custom action to the system, just regular use and apps, but it is still acting up badly.
I was planning to use this phone as a secondary handset because it is actually a very nice piece of hardware but now i am starting to have second thoughts about that.

Related

OP2 soft bricked, can't access recovery, not recognized by laptop

Hey,
Very strange query but here goes. Rooted phone a while back and installed CM13 along with recovery. Was trying to update TWRP{ by downloading .img from their website, went to flashing, selected the file and hit recovery. Said it was succesful so attempted to reboot. Plugged in to charge and was charging but when I tried to switch it on, it was stuck in Cyanogen Bootloop (blue alien stayed on the screen for 10+ minutes). Tried rebooting to recovery by hitting power + volume down and instead of booting to TWRP, it takes me to a Cyanogen recovery screen where I see the following options:
Cyanogen Recovery.
- Reboot system now
- Apply update
- - -apply from ADB
- - -choose from emulated
- Factory reset
- - -system reset
- - -full factory reset
- - -wipe cache
- Advanced
- - -reboot recovery
- - -reboot to bootloader
- - -Wipe system partition
- - -view recovery logs
Here's what I tried as troubleshooting. Tried to do a system reset, factory reset and wiped cache and tried to restart my phone but no luck. Still stuck in boot loop with CM logo. Tried to reboot to bootloader but the screen is stuck with the 1+ logo for about 5 mins so gave up on that.
Basically, right now I can't access anything on the phone, can't find any way to reinstall a ROM and when I plug it into my Macbook, it is not recognised. So I'm screwed sideways. I had TWRP recovery set up so I have no clue how this happened but can anyone please help me with this.
If data isn't at risk try the Qualcomm recovery tool one the oneplus forum it's by nammand bhal (definitely butchered the name) but all data is lost and resets the phone to out of box conditions locked bootloader and Oos 2.2.1 so this is often a last measure (tool is Windows but may have Mac variant and the file is quite big)
My suggestion is to try to boot to bootloader again and flash TWRP
hmm mac book I don't have much experience with those
If you have a Windows pc you can use adb or on Mac if it has it. Also when it come to being found by a computer in recovery it should but again don't have a mac
CM13 replaced your TWRP recovery with Cyanogen Recovery.
Try to boot into fastboot by holding volume up+ power buttons. If successfull, flash TWRP Recovery, boot into it, wipe everything and do a clean install of the ROM.
Macbook won't detect your device unless it is booted up, in recovery or in fastboot mode.
Doesn't it detect while you are in CM Recovery??
Try selecting Apply Update and Update from ADB. It should detect the device atleast now. If yes, try sideloading.
AJay27 said:
CM13 replaced your TWRP recovery with Cyanogen Recovery.
Try to boot into fastboot by holding volume up+ power buttons. If successfull, flash TWRP Recovery, boot into it, wipe everything and do a clean install of the ROM.
Macbook won't detect your device unless it is booted up, in recovery or in fastboot mode.
Doesn't it detect while you are in CM Recovery??
Try selecting Apply Update and Update from ADB. It should detect the device atleast now. If yes, try sideloading.
Click to expand...
Click to collapse
I knew I would regret getting that macbook at some point
Borrowed a friend's PC and was able to flash TWRP recovery. Was then able to boot into it and do a clean install. Ended up installing Oxygen OS this time. Do you know why this issue occurred so I can research how to prevent it next time.
justicesourglide said:
I knew I would regret getting that macbook at some point
Borrowed a friend's PC and was able to flash TWRP recovery. Was then able to boot into it and do a clean install. Ended up installing Oxygen OS this time. Do you know why this issue occurred so I can research how to prevent it next time.
Click to expand...
Click to collapse
Actually I don't think the issue was with the Macbook since I have unlocked, flashed custom recoveries and sideloaded ROMs on several devices including OP2, OP3, Nexus 5, etc on mine. It might have been some accidental flashing error, which unfortunately ended up bricking your device.

Bootloader locks itself, can't restore via fastboot

Hi,
recently my friend asked me wether I can look at her P8 Lite which wasn't working after beeing left unused for some time. Basically when she got a new phone this P8 was left in box for a few months and after turning it back on the screen included in attachment appeared. https://imgur.com/a/WcvNByN I'm not new when it comes to unlocking bootloaders and all that stuff as I was doing it many times on another devices so I tought it will be easy job. Well, was I wrong... What I tried so far to recover this phone:
1) I obtained all necesary data to get the bootloader unlock code from Huawei. When I want to unlock the bootloader it works but after I reboot the device it goes back to "Locked" state.
2) It does not boot to recovery with buttons combination.
3) It does boot to fastboot but as I said bootloader locks itself down after reboot.
4) I tried to place UPDATE.APP from various firmweares on SD card and update it that way, it takes extremly long but with this metod it boots to some kind of MIUI recovery in which I have 3 options: wipe cache, wipe data/factory reset, rebboot system. Depending on firmweare it allows me to wpie cache or/and wipe data but reboot system always fails taking me back to this rescue mode screen.
5) Finally I tried to flash stock rom by extracting files from UPDATE.APP via fastboot. It flashes everything except recovery and boot which gives me fastboot error: "FAILED (remote: flash write prim vrl failure)". Interestingly I can flash TWRP recovery without error but when i try to access it whit buttons combination it fails and goes to rescue mode.
Device was stock and unrooted before this. I'm kind of out of ideas, I searched a lot of topics without any conlusion on this, if anyone could help me I wolud really appreciate this. However I think there is no hope for this phone maybe someone here would be able to help.
DoggoGuy said:
Oh no... You should contact Huawei and don't tell them that you tried to unlock the bootloader. Your phone may have a thing named "Huawei eRecovery". Launch it, it will download and flash stock ROM.
Click to expand...
Click to collapse
That option works only in China . I guess
Robx34 said:
Hi,
recently my friend asked me wether I can look at her P8 Lite which wasn't working after beeing left unused for some time. Basically when she got a new phone this P8 was left in box for a few months and after turning it back on the screen included in attachment appeared. https://imgur.com/a/WcvNByN I'm not new when it comes to unlocking bootloaders and all that stuff as I was doing it many times on another devices so I tought it will be easy job. Well, was I wrong... What I tried so far to recover this phone:
1) I obtained all necesary data to get the bootloader unlock code from Huawei. When I want to unlock the bootloader it works but after I reboot the device it goes back to "Locked" state.
2) It does not boot to recovery with buttons combination.
3) It does boot to fastboot but as I said bootloader locks itself down after reboot.
4) I tried to place UPDATE.APP from various firmweares on SD card and update it that way, it takes extremly long but with this metod it boots to some kind of MIUI recovery in which I have 3 options: wipe cache, wipe data/factory reset, rebboot system. Depending on firmweare it allows me to wpie cache or/and wipe data but reboot system always fails taking me back to this rescue mode screen.
5) Finally I tried to flash stock rom by extracting files from UPDATE.APP via fastboot. It flashes everything except recovery and boot which gives me fastboot error: "FAILED (remote: flash write prim vrl failure)". Interestingly I can flash TWRP recovery without error but when i try to access it whit buttons combination it fails and goes to rescue mode.
Device was stock and unrooted before this. I'm kind of out of ideas, I searched a lot of topics without any conlusion on this, if anyone could help me I wolud really appreciate this. However I think there is no hope for this phone maybe someone here would be able to help.
Click to expand...
Click to collapse
I had the same error on my Huawei P8 Lite 2017 but I broke it myself.
The only way I was able to fix it by not taking it to a store was to use DC Phoenix,but it costs 20 euros for a 3 day license.
It was worth it though,since it did first of all lock the bootloader again,and it bootlooped at first but then I went to eRecovery and it installed the latest update and booted up.

[Solved] No way to unbrick my A2017G ?

I have no idea how I managed to get into this situation.
My A2017G was on Oreo 8.1 RR with a treble partition. Since I wasn't happy with that I want to go back to the newest stock rom.
So i followed this Guide [GUIDE] [A2017G] Return to Stock from Custom ROM - Updated.
I flashed the bootstack, then I flashed the stock system and the result was a dfu brick. Meanwhile i have an Axon 7 teared down into pieces, so I'm able to flash with MiFlash.
I tried to flash these roms until now:
ZTE_A2017GV1.2.0B06_FULL_EDL_PACKAGE_BY_TURKDEVS
A2017G_B09_NOUGAT_FULL_EDL
A2017G_B10_NOUGAT_FULL_EDL
ZTE_A2017GV1.2.0B10_Stock_System_by_raystef66 (+ ZTE_A2017GV1.2.0B10_BootStack_by_raystef66)
(I also tried to flash the "Remove Bootloader Unlock Warning" zip afterwards...)
My only chance to get into the TWERP Recovery is to replace an original recovery.img with the twerp one and flashing with the test point method.
All of them result in a dfu brick or stuck in the Axon7 logo screen after the animation (if i force a shutdown, it will result in a dfu brick too).
I'm out of any ideas since every single try result in a broken device. Does anyone has a suggestion what to do now?
No need to disassemble the phone. You can always get back into EDL with this method:
http://en.miui.com/thread-310325-1-1.html
Note that you should unplug the device to remove the wire in step 10 to avoid any possibility of damage. The device will remain in EDL mode until rebooted.
I don't have a G model, and I don't run stock. So I can't help there except to recommend that you flash back to a supported Lineage build to unbrick.
Good luck.
I already tried the wire method and the EDL-cable method. Unfortunatly both of them failed.
imho, the axon 7 teardown is very easy and worked fine for me.
I'll try to flash the newest lineage, maybe it works for me. But I still think there is more corrupted than just the OS. All I can do is booting into recovery and getting stuck at the penuin screen or at the axon 7 screen at the end of the stock boot animation.
Edit: No luck with Lineage or any other rom. I think it's a wrong setting or something like that, but I don't know how to set everything back to default
tdm said:
No need to disassemble the phone. You can always get back into EDL with this method:
http://en.miui.com/thread-310325-1-1.html
Note that you should unplug the device to remove the wire in step 10 to avoid any possibility of damage. The device will remain in EDL mode until rebooted.
I don't have a G model, and I don't run stock. So I can't help there except to recommend that you flash back to a supported Lineage build to unbrick.
Good luck.
Click to expand...
Click to collapse
keep this in mind, not all G users can do the cable procedure. He's just one more on a pretty big list. It's okay to suggest that unbricking without disassembly is possible but it's nowhere near 100% (or even 50% i'd say) effectivity. Same with FTM mode, people reported that they could get there after draining the battery, well it didn't work for everyone
---------- Post added at 12:32 AM ---------- Previous post was at 12:29 AM ----------
Warcon said:
I already tried the wire method and the EDL-cable method. Unfortunatly both of them failed.
imho, the axon 7 teardown is very easy and worked fine for me.
I'll try to flash the newest lineage, maybe it works for me. But I still think there is more corrupted than just the OS. All I can do is booting into recovery and getting stuck at the penuin screen or at the axon 7 screen at the end of the stock boot animation.
Edit: No luck with Lineage or any other rom. I think it's a wrong setting or something like that, but I don't know how to set everything back to default
Click to expand...
Click to collapse
First flash a full EDL image, such as Nougat B10 or whatever new G package is available. Then you can install TWRP via EDL with "EDL Tool" by djkuz for example. After flashing you HAVE TO GET INTO TWRP or it'll get overwritten with the stock recovery. once you're there, to install lineage you'll need vendor, follow the procedures to get a working vendor and you're done
Choose an username... said:
First flash a full EDL image, such as Nougat B10 or whatever new G package is available. Then you can install TWRP via EDL with "EDL Tool" by djkuz for example. After flashing you HAVE TO GET INTO TWRP or it'll get overwritten with the stock recovery. once you're there, to install lineage you'll need vendor, follow the procedures to get a working vendor and you're done
Click to expand...
Click to collapse
After some failures I finally managed to flash the B12 Nougat full EDL. Best I can do with that is getting the Axon 7 logo after the boot animation. I'll try to install TWRP with the EDL Tool now.
edit: TWRP works for now. I'll backup the whole thing before it goes crazy again.
edit2:
TWRP: works
options menu: works
fastboot: stucks at black screen with a little penguin
booting after 5sec screen: stucks at black screen with little penguin
Does anyone has a step by step tutorial how to fix this ?
Warcon said:
After some failures I finally managed to flash the B12 Nougat full EDL. Best I can do with that is getting the Axon 7 logo after the boot animation. I'll try to install TWRP with the EDL Tool now.
edit: TWRP works for now. I'll backup the whole thing before it goes crazy again.
edit2:
TWRP: works
options menu: works
fastboot: stucks at black screen with a little penguin
booting after 5sec screen: stucks at black screen with little penguin
Does anyone has a step by step tutorial how to fix this ?
Click to expand...
Click to collapse
You have no fastboot, because N builds don't have it by default. If you select fastboot it simply boots into system. (in your case it attempts to, so it ends up in the same situation).
Try to install LOS14.1 maybe, since it's just modem, bootstack and ROM. I have zero hope that it'll work but it may as well do the trick. I have no idea why this is happening to you but it's just plain weird, I mean EDL should reflash most partitions
flashed TWRP 3.2.3
made a full edl backup
whiped data, system, cache, dalvik
flashed bootstack_O_b12
flashed oreo modem
flashed lineage-15.1-20180810
flashed pico gapps
it works now

Bricked ZTE Trek 2

While trying to install TWRP via JasmineTool, completely missed the part on first run and now I got the dreaded Your Device is Corrupt error.
I can't go into recovery, it just reboots. I had backups of what I had on the device and I can go back to EDL mode via first DFU Mode, then use ZTE Terminal Software Framework . I can re-flash the backups, it looks successful, but still same issue
I tried to flash b15 or b17 recovery and boot img files, they fail with unknown error.
Any suggestions?
I am making progress... As I found out in another thread, the error is about rebooting and I was not being patient after selecting Recovery (it reboots, then error, then you wait and it boots into TWRP).
So now trying to flash Lineage, we'll see
All good... I am back in business

Note 7 stuck in bootloop after failed flashing attempt. Can't get into fastboot.

ood morning!
While attempting to flash a stock MIUI 10 ROM into my Xiaomi Redmi Note 7, to downgrade back to Android 9.0 due to some app compatilibty issue, I messed up big time and my phone is now stuck in a loop where the screen turns on, nothing shows up, then it restarts, going off for a few seconds and turning on again.
Power Button + Volume UP successfully brings me to the stock recovery 3.0 from xiaomi.
Power Button + Volume DOWN fails to bring me to the fastboot mode.
If I select the Connect with MIAssistant in the recovery the phone will show up as "sideloaded" after using the command adb devices, but the MIPCSuite app does not see it and the command adb restart bootloader also fails to bring up the fastboot mode, it just gets stuck in the loop again.
More context on what went wrong and caused this: I followed an online tutorial to flash a rom using the MIFlash app, so I unlocked the bootloader and tried to flash the rom usin xiaomi's tool. I got a failed to check sparse crc error code and it went downhill from there when I tried to fix things reading multiple threads on the issue. I tried deleting some lines from the flash_all.bat file and tried to flash it again but then the flashing process went seemingly forever so I aborted the operation and now this loop happens. I tried a few more times but with no success.
The first time I tried to use the tool I used the clean all and lock option so I'm not certain if the miflash tool locked the bootloader regardless of the outcome of the flashing attempt.
Is there hope? Can I fix this phone if I only have access to stock recovery and nothing else (although it shows up in adb devices but can't get into fastbootmode) ?
Thanks a lot to anyone who took the time to read and possibly help.
I finally managed to fix it through the Emergency Download Mode (EDL). It requires Xiaomi Authentication which I bypassed using this guide: https://www.droidwin.com/fix-mi-account-authorization-unbrick-xiaomi-edl-mode/
With that setup I flashed a stock rom using the MiFlash tool.

Categories

Resources