Audio drivers went missing during update - ZTE Axon 7 Questions & Answers

I already opened an RMA for the phone but they have no stock so I figured I'll take another shot at it.
The short version is that my gf messed up and updated the system while transferring her data from her old phone with the tapNgo thing.
I've done multiple facory resets, downloaded the rom from ZTE support, put it on SD, flashed it from recovery and deleted cache and nothing helps.
I don't have the exact error log anymore since I don't have the phone with me now but it reads something along the lines of
loading /proc/devices/audio/sound------ cannot find file/directory.
I looked it up and after a lot of Googling it seems like the symlink to the actual driver folder is missing and I have no idea why.
Does anyone know if i can fix this with an ADB shell?
Alternatively, I tried to follow some of the many guides out there to put the phone in EDL mode and relfash it with XiamiFlash utility but after trying 3-4 downloads and 900 versions of misflash all I ever get is "reading hello packet... unable to communicate to com4"
Haaaalp please?
*edit* this is pretty much exactly the same as what I'm getting: https://forum.xda-developers.com/android/help/sound-card-detected-t3379736

The problem with the phone is it makes no sounds?

gpz1100 said:
The problem with the phone is it makes no sounds?
Click to expand...
Click to collapse
the sound drivers for the OS is missing completely, no sound no microphone.
The syslog looks like this(this is from another phone its its the exact same problem):
AudioDaemon: Opening sound card state : /proc/asound/card---/state
AudioDaemon: Open /proc/asound/card---/state failed : No such file or directory
AudioDaemon: Sleeping for 100 ms

Strange issue indeed. Which model do you have? Which specific firmware file are you flashing to it?
I would think flashing the full unmodified factory firmware using the stock recovery will wipe the phone completely, including the /data partition.
Everything worked before? Help me understand the order of events. What is tapngo?
While in the midst of transferring information to or from the phone, a software update appeared and she accepted/installed it?

Its the A2017U model.
I had tried the 1.1.0 B15 firmware from SD card as well as the 1.0.0 B29 older firmware.
Right now its on B17 Nougat 7.1.1, the phone runs and works perfectly just has no audio hardware.
I wasn't there for the exact procedure but basically she powered it on, it asked for sim, she inserted that, tapped the "transfer my data" and then held the two phones together to get the NFC process started. That starts the bluetooth transfer process and it takes a really long time where it transfers all data and apps from the old phone.
At this point the phone still made sounds when adjusting the volume etc.
Somewhere in that process the "update available" notification came up and she pressed the option to install it.
After I got home I tried to figure out what is wrong, first i thought the phone wasn't registered on the cellphone network but then after a bit i figured out the audio is the issue, then i did a factory reset both from the phone UI and tried again from recovery mode, both times chose the "erase all data" option but neither time did it help at all.
I don't really know enough about phones but i think its the bootloader/something very early on thats messed up. Either that or the audio chip really just did fry.
My hope was to get the full factory image for everything that you need to install with the EDL mode thing but I can't find any good reliable guides for that.

It's the first thread in the development section.. Stickied even.
https://forum.xda-developers.com/axon-7/development/edl-emergency-dl-mode-twrp-unlock-t3553514
Get this package - B15-NEW_FULL (Nougat)
I really don't understand zte's numbering scheme. Newer versions get lower numbers. Makes no sense. That's the full firmware except for the fastboot which passes commands. At this point it's a non issue given the issue you're having.

So I don't need to load TWRP on it, I can still keep it just stock with unlocked bootloader?
I tried that miflash thing before, i had it connected un usb download mode but nothing worked for me, I'll try doing this guide when i get home step by step again.
Their firmware numbers is based on numbers and letters 1.0a-z and then 1.1a-z so 1.0z1 is less that 1.1a1

Ok I have an update
Did miflash, nothing changed.
Ulocked bootloader and miflashed the bootloader from the sticky thread.
The phone made the startup sound and audio worked for a few seconds after android started up and then stopped again
*edit*
ok so after it showed signs of life i re-locked the bootloader, and did the OTA updates to 7.1.1 and the audio seems to be working for good now!!
Conclusion seems to be the bootloader was the key to get it working again. Hope this helps others if it comes to it.

Related

No Mobile Service

Okay, I was able to get into pink screen by erasing the dload folder, removing the battery, and connecting to my PC via the USB cable. I then copied CWM 5.0.2.7 over and then flashed Stallion-51-ICS onto the phone. I now have a very fast, rooted and customized U8800-51, BUT no mobile service. IMEI and APN info is correct but it won't access the mobile service that our other phones access, SIM is the same one that I use in my current phone.
I know you are supposed to back up the IMEI partition and APN before flashing a custom ROM, but since my phone got broke trying to restore a full backup done with CWM I was caught off guard.
Still looking for any suggestions you all might have.
Seriously???
pastorbob62 said:
Okay, I was able to get into pink screen by erasing the dload folder, removing the battery, and connecting to my PC via the USB cable. I then copied CWM 5.0.2.7 over and then flashed Stallion-51-ICS onto the phone. I now have a very fast, rooted and customized U8800-51, BUT no mobile service. IMEI and APN info is correct but it won't access the mobile service that our other phones access, SIM is the same one that I use in my current phone.
I know you are supposed to back up the IMEI partition and APN before flashing a custom ROM, but since my phone got broke trying to restore a full backup done with CWM I was caught off guard.
Still looking for any suggestions you all might have.
Click to expand...
Click to collapse
Not to be negative or anything but I think this is the least responsive forum on this site. I have spent hours searching for possible solutions to various problems I've encountered over the past several months, asked several questions and received little if any help. I was only able to get back from a bricked phone to where I am now by using information found on other websites. Pretty sad if you ask me.
In contrast, whenever I have asked a question on my tablet's forum I've received fast workable solutions/answers to my problems/queries. The threads are informative, well organized and contain answers to any situation I have encountered.
Granted, my current problem with my phone is my own fault for trying to customize it. And I suspect part of the problem is due to the age of this phone thus most of the "experts" have moved on to other ventures. It is also hindered by the lack of information available from Huawei and the service providers.
All of that said, if anybody has any suggestions for how I can repair the ESF partition or whatever is causing this lack of mobile service issue I would be extremely grateful. It isn't the end of the world since i have a new phone (Consumer Cellular) that I am currently using but it would be great to get this one working since it's much faster and more streamlined than my stock Consumer Cellular version.
I have experienced something similar on my regular U8800, and it seemed like there was a baseband & modem partitions conflict. In stock 2.3, there should be some kind of hwefsupdate tool, it may be renamed though. This tool gets run on the first boot after 2.3 and it restarts the phone shortly after. Try to reinstall the stock ROM, see what happens. It can be fixed in strange ways - for example, my original U8800 got a USB failure, so I sent it to the repair. I had 2.3 installed. When I got it back, they tried to write over some old 2.2 firmware, which softbricked the phone. Being clueless, I wrote the 4GB image of some other phone's image on my phone, and got everything working again. Then, when I tried to write back my original IMEI, I got the same issue as you. The only way to get it right was to rewrite the "other phone's imei".
The baseband/modem errors are actually very hard to debug, hence no replies. And since it's a Huawei, these guys have even failed to provide a good update system, as seen from the IMEI getting nulled issues. The mmcblk0p5 stores the OEMInfo of the phone, it contains serial numbers & other information about the phone (like accelerometer position up/down for example). It also has the boot image (the very first splash screen). The data is loaded onto modem processor, which provides an API to let userspace access it.
Blefish said:
I have experienced something similar on my regular U8800, and it seemed like there was a baseband & modem partitions conflict. In stock 2.3, there should be some kind of hwefsupdate tool, it may be renamed though. This tool gets run on the first boot after 2.3 and it restarts the phone shortly after. Try to reinstall the stock ROM, see what happens. It can be fixed in strange ways - for example, my original U8800 got a USB failure, so I sent it to the repair. I had 2.3 installed. When I got it back, they tried to write over some old 2.2 firmware, which softbricked the phone. Being clueless, I wrote the 4GB image of some other phone's image on my phone, and got everything working again. Then, when I tried to write back my original IMEI, I got the same issue as you. The only way to get it right was to rewrite the "other phone's imei".
The baseband/modem errors are actually very hard to debug, hence no replies. And since it's a Huawei, these guys have even failed to provide a good update system, as seen from the IMEI getting nulled issues. The mmcblk0p5 stores the OEMInfo of the phone, it contains serial numbers & other information about the phone (like accelerometer position up/down for example). It also has the boot image (the very first splash screen). The data is loaded onto modem processor, which provides an API to let userspace access it.
Click to expand...
Click to collapse
Thank you very much for your reply. It seems that you have found the answer to my problem. But unfortunately, I don't have a copy of the original stock ROM. My phone is the -51 version and any links I have found to the stock ROM are broken. There is a version I found but it is for Venezuela and I don't think it will work. I am leery to try it and totally brick my phone. My backup is apparently corrupted. I backed up my new working phone with Disk Image and attempted to restore it to the broken phone but all that did was cause it to come up to the ATT logo screen for a few seconds and then shut down. It wouldn't do anymore than that. So I restored the Stallion 3.5 image I made and am back to a great fast tablet with no phone service. I also tried backing up my IMEI on the working phone and restoring it to the broken phone but that had no effect.
It is my understanding that the -Pro version of the ROM will work, but I don't have the stock image of that either. I suspect it work might since I was able to use the -Pro version of GB on it. All of my internet searches have only turned up custom ROMs and other desperate people looking for fixes for similar problems or worse. I agree 100% with your assessment of Huawei's lack of meaningful support. It really is a shame, because these phones aren't half bad when they have been customized and OC'ed a little.
I have just about given up on it and resigned myself to using it as an MP3 player for my car system. I have learned my lesson and am leaving the working phone stock. It is rooted and I have cleaned off all of the bloatware, and set it up so most apps run from my SD card, so it really isn't half bad. At least it works.
Again, thank you for your reply and advice.
Blefish said:
I have experienced something similar on my regular U8800, and it seemed like there was a baseband & modem partitions conflict. In stock 2.3, there should be some kind of hwefsupdate tool, it may be renamed though. This tool gets run on the first boot after 2.3 and it restarts the phone shortly after. Try to reinstall the stock ROM, see what happens. It can be fixed in strange ways - for example, my original U8800 got a USB failure, so I sent it to the repair. I had 2.3 installed. When I got it back, they tried to write over some old 2.2 firmware, which softbricked the phone. Being clueless, I wrote the 4GB image of some other phone's image on my phone, and got everything working again. Then, when I tried to write back my original IMEI, I got the same issue as you. The only way to get it right was to rewrite the "other phone's imei".
The baseband/modem errors are actually very hard to debug, hence no replies. And since it's a Huawei, these guys have even failed to provide a good update system, as seen from the IMEI getting nulled issues. The mmcblk0p5 stores the OEMInfo of the phone, it contains serial numbers & other information about the phone (like accelerometer position up/down for example). It also has the boot image (the very first splash screen). The data is loaded onto modem processor, which provides an API to let userspace access it.
Click to expand...
Click to collapse
@Blefish
hi there, can you please give me the exact steps do to so, because im experience the exact same problem.
I've lost the imei in the upgrade process, and them flashed the 4GB image from a user, and then when i try to update to gingerbread, i can't have 3G signal, only 2G.
in the past, i had made a backup of the imei after flashing that .img file, and i think that after update to gingerbread had restored the imei and the 3g was working nice. But this time i cannot acomplish the same, don't remember very well the exact steps that i've made.
I already tried with the B517 and B518, and can't get it to work...
Can you give me some help please?
Thanks in advance
ggunzio said:
@Blefish
hi there, can you please give me the exact steps do to so, because im experience the exact same problem.
I've lost the imei in the upgrade process, and them flashed the 4GB image from a user, and then when i try to update to gingerbread, i can't have 3G signal, only 2G.
in the past, i had made a backup of the imei after flashing that .img file, and i think that after update to gingerbread had restored the imei and the 3g was working nice. But this time i cannot acomplish the same, don't remember very well the exact steps that i've made.
I already tried with the B517 and B518, and can't get it to work...
Can you give me some help please?
Thanks in advance
Click to expand...
Click to collapse
In my case, I restored the full 4GB from some russian community's provided image (it was named Huawei_U8800_FullFlash.bin), which returned my device to stock 2.2. From there I installed 2.3, and everything still worked. The problem in my case was that I could not restore my own IMEI, it never gave me connection & failed to register to a network. The only solution was to use the "wrong" IMEI that came with the 4GB image.
Huawei has some sort of backup mechanism if they think the "data" is corrupted. I can't tell how it works, but it likes to break things that were working before.
Blefish said:
In my case, I restored the full 4GB from some russian community's provided image (it was named Huawei_U8800_FullFlash.bin), which returned my device to stock 2.2. From there I installed 2.3, and everything still worked. The problem in my case was that I could not restore my own IMEI, it never gave me connection & failed to register to a network. The only solution was to use the "wrong" IMEI that came with the 4GB image.
Huawei has some sort of backup mechanism if they think the "data" is corrupted. I can't tell how it works, but it likes to break things that were working before.
Click to expand...
Click to collapse
i have exactly the same phone than you, because i installed that backup too. After installed it, the IMEI SV is 36, after installing B518 it says it is 18, but before it was 17, and i had 3g signal, but not now.
My question is, wich SV is your phone reporting?
Thank you
I also have a problem like this, but I think it's a bit more severe. My phone got stuck while charging. Couldn't reboot. Was getting stuck on the aurora loading screen(using DZO 5u20). Than reinstalled whole rom. But now I don't any signal and the phone doesn't even see a SIM card. Showing 'baseband unknown' and the IMEI and IMEI SV are also unknown. Not 0's but just unknown. Is this is a similar problem? And can something be done to fix it.
I had some backups on my sd card, untill the sd-card got fried in the phone a couple of months ago.

Oneplus 5 stuck on setup?

EDIT: Solution was to sit with OP5 technician which flashed my ROM to Oxygen 4.5.1. After this didn't do it, I RMA-ed it and got a new OP5.
EDIT: TL;DR: After updating OP5 to 4.5.5, It doesn't recognizes sim nor wifi, and can't rollback to 4.5.3 that did and stuck on phone setup (needs wifi). ADB devices is empty, I have Google USB Driver from SDK, Windows 10
Hello,
I just got a new OP5 today.
Opened it in the store, came with Oxygen 4.5.3 outta the box.
I putted the sim in, and I connected to the store's wifi, all was good and even had a phone call to my mother to check if the mic and speaker are working well.
Then when I got home, I upgraded the OS to 4.5.5 through the settings, where Android suggested. I'm new to OP and android (moved from iphone 5) and so if there is a right way to do it, and that's not it, I wouldn't have known.
Then, OP5 didn't recognize the sim anymore and couldn't start the wifi (switching it on wouldn't work, it would do nothing), so I tried Factory reset. Unfortunately it didn't reset the OS as well and now I'm stuck outside can't use my sim card or connect to my home wifi to setup the device.
Tried installing OP5 usb drivers (show when connecting the OP5 to PC) and press the power button and lower speaker volume together, then flush the 4.5.3 OS through USB, but it doesn't recognize ZIP folder and when I tried to unzip and send boot image (cmd->"adb sideload boot.img) it started and then failed at 0%.
Please help, the phone right now is unusable.
Tried the Factory reset through settings, but it took so long I thought it was stuck, so I did it through recovery screen.
Sounds like you got a lemon... I'd take it back and see if they'll swap it for another. Less than a week should be replaced immediatelly, at least that's been my experience here in Oz...
ultramag69 said:
Sounds like you got a lemon... I'd take it back and see if they'll swap it for another. Less than a week should be replaced immediatelly, at least that's been my experience here in Oz...
Click to expand...
Click to collapse
Why should it be replaced in less than a week? Also, isn't there a fix for adb problem so I could flash 4.3.5? Maybe a remote takeover?
Mine had 4.5.3 on it when I got it, updated to 4.5.4 then manually downloaded full rom, placed on internal memory and flashed 4.5.5 through the settings.
Had zero problems with WIFI before, during and after the update. No problems since.
Generally updating to a higher firmware version won't allow you to regress back to the lower, not sure with Oneplus as this is my first.
I'd also, if you can boot into Android go to settings nd check my IMEI numbers to see if they have been wiped (this can cause the sim to not be recognised) . If you have no IMEI then that is a BIG problem which will require an RMA unless you had backed up your efs files which from your description I doubt..
If the IMEI is OK I would download the full firmware version from here - https://forum.xda-developers.com/oneplus-5/how-to/oneplus-5-mirrors-official-oxygen-os-t3628190 - then using PC put the FULL ROM onto the internal memory then go to recovery and flash.
I'd also then unlock my bootloader(Just remember though that the phone will wipe all data after unlocking bootloader) and install TWRP - don't forget to 1st enable developer mode in settings and then allow usb debugging and OEM unlock - make a backup of the working stock rom and put it somewhere safe - home PC, in case this happens again. Best idea is to use the all-in-one tool, here - https://forum.xda-developers.com/on...l-skipsoft-android-toolkit-oneplus-5-t3625419 thankyou MSkip.
ultramag69 said:
Mine had 4.5.3 on it when I got it, updated to 4.5.4 then manually downloaded full rom, placed on internal memory and flashed 4.5.5 through the settings.
Had zero problems with WIFI before, during and after the update. No problems since.
Generally updating to a higher firmware version won't allow you to regress back to the lower, not sure with Oneplus as this is my first.
I'd also, if you can boot into Android go to settings nd check my IMEI numbers to see if they have been wiped (this can cause the sim to not be recognised) . If you have no IMEI then that is a BIG problem which will require an RMA unless you had backed up your efs files which from your description I doubt..
If the IMEI is OK I would download the full firmware version from here - https://forum.xda-developers.com/oneplus-5/how-to/oneplus-5-mirrors-official-oxygen-os-t3628190 - then using PC put the FULL ROM onto the internal memory then go to recovery and flash.
I'd also then unlock my bootloader(Just remember though that the phone will wipe all data after unlocking bootloader) and install TWRP - don't forget to 1st enable developer mode in settings and then allow usb debugging and OEM unlock - make a backup of the working stock rom and put it somewhere safe - home PC, in case this happens again. Best idea is to use the all-in-one tool, here - https://forum.xda-developers.com/on...l-skipsoft-android-toolkit-oneplus-5-t3625419 thankyou MSkip.
Click to expand...
Click to collapse
I can't pass the "Connect to Wifi" in the initial setup of the android, as it finds no wifi networks (but of course there are, when I use the sim in my iphone it works properly and there are wifi networks). So I don't know how can I get the IMEI number.
Right now my PC recognizes the OP5 connected via USB, but "adb devices" bring back empty list.
I think that once I get that working, I could unlock the bootloader. But I can't seem to be able to enable dev mode in settings - I can't get there.
I can only get to the recovery screen beyond the initial steps of setting up android.
Right now there is no important data on the phone and I have my laptop which is virgin to ADBs and Drivers (didn't use it to try to resolve it).
What driver and where do I get the right ADB so I could load 4.5.3 from usb to the phone?
When you upgraded, did you wipe cache and dalvik?
Binary Assault said:
When you upgraded, did you wipe cache and dalvik?
Click to expand...
Click to collapse
Wiped after the upgrade whem problems started
Might be wrong but I thought you could skip the wifi select screen on the setup wizard.
If you can get to Android you need to go to settings, scroll down to about phone and tap around 8 times on build number to enable developer settings.
You might be able to, might, pull down the settings menu in the wizard and bypass the wizard.
ultramag69 said:
Might be wrong but I thought you could skip the wifi select screen on the setup wizard.
If you can get to Android you need to go to settings, scroll down to about phone and tap around 8 times on build number to enable developer settings.
You might be able to, might, pull down the settings menu in the wizard and bypass the wizard.
Click to expand...
Click to collapse
It doesn't seem like I can skip it. Can't pull down a menu or anything
I guess only Oneplus can help me now?
Do you have any suggestion on fixing adb so it would recognize the OP5?
No, you need to enable debugging in developer settings for ADB to recognise.
Time to RMA...
ultramag69 said:
No, you need to enable debugging in developer settings for ADB to recognise.
Time to RMA...
Click to expand...
Click to collapse
Welp it is a pickle.
Going to go live chat with OP "level 2" representative.
See if they wipe the phone out and restore an older ROM.
If that't not going to work, RMA it is :/
Shame. A new phone. Took only one picture with my dad when we opened it back at the store. nothing else.
Unfortunately bad things can happen... You just got to be the one who got the dud this time round.....
Here's hoping it's the last time....
you can force update to a fresh installation of 4.5.5 by putting the 4.5.5 full zip into your phone in a folder called "update". Reboot to recovery im assuming you have stock recovery and follow the steps until you find the option that says something along the lines of "Update manually". It will detect if you have an update folder stored on your phone and it will begin reinstalling OOS 4.5.5. It sounds like a software problem but could be a hardware problem. Rule out the first option before RMA the latter.
OcazPrime said:
you can force update to a fresh installation of 4.5.5 by putting the 4.5.5 full zip into your phone in a folder called "update". Reboot to recovery im assuming you have stock recovery and follow the steps until you find the option that says something along the lines of "Update manually". It will detect if you have an update folder stored on your phone and it will begin reinstalling OOS 4.5.5. It sounds like a software problem but could be a hardware problem. Rule out the first option before RMA the latter.
Click to expand...
Click to collapse
When I connect the OP5 to the PC there are no folders under it (Computer -> OP A500 -> no folders), but I'll try and give it a shot. see what happens. Will update this reply.
Update:
After Oneplus flashed Oxygen 4.5.1 on the phone and some other magic I was able to skip wifi step on setup, yet still when I try to activate it it won't budge. the slider won't move and it looks as the page is being refreshed. Also, when I try to get into sim section in settings it would just freeze and alert the program stopped and suggest to close or wait.
Oneplus says it is hardware issue, and the fact it happened when I upgraded to 4.5.5 from settings menus is coincidence. They say I need RMA it.
If anyone knows how to fix it then I'm more than welcome to hear it.
EDIT: it also won't shut off unless I long press the power button.

No Sim Detected

Hey all......I created a thread awhile back when I borked my phone trying out a new treble rom that was supposed to be so easy even a nOOb could flash it, and it ended up messing up my phone to the point where the only way for me to get it back was to follow the thread to disassemble the phone and short the chip out.
Then, the screen was not responsive on ANY rom I flash except for MM and it worked with any up to B29. I tried a few times to upgrade all in vain but I was always able to flash MM B29 and have it work again.
Flash forward to last night and my itchy trigger upgrade finger did it again and I attempted to flash the Oreo from ZTE. It flashed fine but, again, no responsive screen. I thought well, maybe I could try Nougat again and I flash many different versions and in different ways (used miFlash, EDL tool, MiFavor recovery, twrp) and all resulted in the screen not being responsive. Sigh, so I flashed MM B29 but now it will not detect any sim or even allow wifi to be turned on.
I have tried multiple times to reflash MM B29 using all the different ways above and even went back and forth between roms. I tried the original way most of us first unlocked the bootloader and flashed through all those stepped zip packages from B20 to B29 and still nothing. I finally used twrp to erase/format all data and made certain the partitions were formatted as ext4 and tried again, still no sim.
I realize that my imei is not showing and even tried a program to flash? that to the phone.
NOW, what needs to be said is during ALL of this flashing the phone signal/sim DID show......yes.......the sim DID WORK......when I flashed anything other than MM B29. LOL. Of course, the issue is none of those roms allow the screen to work.
Please, if anyone can help I would appreciate it very much. I'm thinking by flashing the Oreo from ZTE it may have changed something that the MM B29 rom is not changing to allow the phone to read the imei/sims.
I'm not sure but I think the DFU multitool posted by @raystef66 can fix the IMEI issue.
You have installed the correct modem for you device? EG: if you've flashed a U modem on a G device the sim and WiFi won't work.
If this is correct check APN and network setting in the phones software.
I hope this helps ?
Syberclone said:
I'm not sure but I think the DFU multitool posted by @raystef66 can fix the IMEI issue.
You have installed the correct modem for you device? EG: if you've flashed a U modem on a G device the sim and WiFi won't work.
If this is correct check APN and network setting in the phones software.
I hope this helps
Click to expand...
Click to collapse
I appreciate the suggestions. Unfortunately, the DFU tool doesn't seem to work for me as it remains listed as Disconnected even after choosing the correct port.
I have always flashed the MM B29 EDL rom (A2017U_B29_MARSHMALLOW_FULL_EDL) that contains the correct modem. As I said, it always worked before.
As far as checking APN/network settings, well, there are none to check because the sim is not detected so all of those choices are greyed out. The signal bars fr both sims are blank in the notification area and of course wifi does not turn on.
I just finished another round of trying different roms to flash including LOS 15. LOS came up to the welcome screen (just like all the others) AND the AT&T logo with LTE full signal bars showing. Again, the screen does not respond to touch so it's all useless. I am at a loss as to why flashing MM B29 is no longer working for me.
Stop using guides mentioned in Axon7 thread,or stop listening to other users.Only thing i see here are bricks.
Probably you have hardware fault
The Axon 7 has been the worst phone for being bricked.
I've flashed ROMs on HTC's, Motorola and Google phones all without problems.
There are way too many packages and bootstacks etc, etc that cause problems and confusion.
So I wouldn't say don't follow threads or users advice.
My advice is research, research and research some more.
Thanks for the suggestions.
Something to get clear.....
I can successfully flash the roms and get to the Welcome screen to begin setup.
MARSHMALLOW:
-screen does respond to touch
-sims are NOT detected
-no AT&T logo
-no phone signal
ANY OTHER VERSION (Nougat, Oreo):
-screen does NOT respond to touch
-sims are recognized
-AT&T logo appears
-phone signal strength meter shows full bars
So, it's not a hardware fault. The phone was working perfectly fine when I had Marshmallow flashed. It's only this last time I flashed the Oreo from ZTE's website and when that did not work I tried a few other roms and then went back to the Marshmallow B29 EDL that I had been using all along.
Isn't there a way to COMPLETELY wipe this phone and start from scratch? As in, when your Windows is so full of crap and running slow you can format the hard drive and reinstall Windows from scratch. I have tried TWRP and format data (have to type yes to format) etc........is there a way to format w=everything that might affect the sim from being detected in Marshmallow? Better yet, the screen from being responsive in other ROMS after marshmallow?
djprez said:
Thanks for the suggestions.
Something to get clear.....
I can successfully flash the roms and get to the Welcome screen to begin setup.
MARSHMALLOW:
-screen does respond to touch
-sims are NOT detected
-no AT&T logo
-no phone signal
ANY OTHER VERSION (Nougat, Oreo):
-screen does NOT respond to touch
-sims are recognized
-AT&T logo appears
-phone signal strength meter shows full bars
So, it's not a hardware fault. The phone was working perfectly fine when I had Marshmallow flashed. It's only this last time I flashed the Oreo from ZTE's website and when that did not work I tried a few other roms and then went back to the Marshmallow B29 EDL that I had been using all along.
Isn't there a way to COMPLETELY wipe this phone and start from scratch? As in, when your Windows is so full of crap and running slow you can format the hard drive and reinstall Windows from scratch. I have tried TWRP and format data (have to type yes to format) etc........is there a way to format w=everything that might affect the sim from being detected in Marshmallow? Better yet, the screen from being responsive in other ROMS after marshmallow?
Click to expand...
Click to collapse
Did you installed a vendor partition?
Predatorhaze said:
Did you installed a vendor partition?
Click to expand...
Click to collapse
I am not certain. If the Oreo update that I downloaded directly off the ZTE site has one, then yes. If that is the cause, how would I modify it?
@djprez: To my knowledge, ZTE's official B12/B20 do not have a vendor partition. ZTE will almost certainly never add Treble support for the A7, if they are going to do so then now is an ideal time, since the A7 is an end-of-life device and no longer being manufactured.

Unable to root

Long story short I'm working on loading a new (has not been used) LG V20 with Lineage OS and obviously have to pre-root the phone but I'm having problems and any help would be appreciated.
I'm currently working on trying to get DirtySanta working but in the command line when I run "run-as con" during ./step1.sh I get, "run-as: unknown package: con"
My questions are...
What am I missing?
Are there step by step instructions for completely re-loading these phones to LineageOS from factory to fully running?
The phone has the factory Android 8.0.0 and has NO data on it that needs to be saved. FastBoot is NOT working, I've tried many times.
Enable OEM unlock is not a option in the developer options on the phone.
Visseroth said:
Long story short I'm working on loading a new (has not been used) LG V20 with Lineage OS and obviously have to pre-root the phone but I'm having problems and any help would be appreciated.
I'm currently working on trying to get DirtySanta working but in the command line when I run "run-as con" during ./step1.sh I get, "run-as: unknown package: con"
My questions are...
What am I missing?
Are there step by step instructions for completely re-loading these phones to LineageOS from factory to fully running?
The phone has the factory Android 8.0.0 and has NO data on it that needs to be saved. FastBoot is NOT working, I've tried many times.
Enable OEM unlock is not a option in the developer options on the phone.
Click to expand...
Click to collapse
If you took the time to the dirty santa thread then you'd know that your phone's security patch date is date where ds has been patched, you need to be on a security patch date prior to Dec 2016
Sent from my LG-H910 using XDA Labs
Now I remember why I didn't post on these threads much. People just assUme that the posting person is a COMPLETE idiot.
This is a HELP forum where people come to get HELP and information, there's no reason to point fingers. A simple, "BTW that version you're running is a patched version, you'll need to roll it back to a prior, follow these links..." version would have done just fine.
With that I'd reply........
I realized I needed a older firmware last night when I was fighting with it for hours. I rolled it back to a firmware, dated 12-24-2016 and managed to get BadSanta to work but it caused my phone to go into a non-stop vibrate, it wouldn't complete boot and was basically bricked. I then found from another site that explained EXACTLY how to put the phone in download mode and then re-flashed the ROM (BTW, for those that don't know, you power off, hold the volume up and then plug in your data cable) but then put Android 7.0 Build number NRD90M.
The problem I am running into is everyone's information isn't is sync.
Some say how to proceed but don't say on what build number to proceed.
Some say to roll back to Android 7 Naugut but don't say which version because there are many versions of that version.
Personally I don't understand why a ROM can't be flashed via the download mode but then again I'm not a programmer.
So with that, after many hours I've made some progress but I am disappointed in how complicated and time consuming it is. I'm seriously considering a Pinephone for me and this phone (once completed) for my wife.
Right now I'm in the process of following this thread....
https://forum.xda-developers.com/v20/how-to/lgv20-vs995-verizon-aio-post-06-19-2017-t3624326
Later, after I get some work done.
Thanks for the reply though.
Well seems the BadSanta isn't working on my phone, as soon as I get past step3 and it reboots the screen is all scrambled and the vibrate motor runs continuously.
I've managed to get into TWRP once and followed the instructions but it bricks the phone at the LG startup screen.
Reloading the fastboot image doesn't do any good.
So seems I'm stuck with the stock firmware.
Can't say I didn't try.
Instructions I followed are here...
https://forum.xda-developers.com/v20/development/ls997vs995h910-dirtysanta-bootloader-t3519410
Visseroth said:
Well seems the BadSanta isn't working on my phone, as soon as I get past step3 and it reboots the screen is all scrambled and the vibrate motor runs continuously.
I've managed to get into TWRP once and followed the instructions but it bricks the phone at the LG startup screen.
Reloading the fastboot image doesn't do any good.
So seems I'm stuck with the stock firmware.
Can't say I didn't try.
Instructions I followed are here...
https://forum.xda-developers.com/v20/development/ls997vs995h910-dirtysanta-bootloader-t3519410
Click to expand...
Click to collapse
The vibration is normal if it's the VS995, which I'm sure you are using, right?
And the phone is not bricked, it's normal to see that warning at the start-up screen (about the device being corrupt....). Just be patient and give it time to boot.
The scrambled screen (static on boot) is also normal, just flash lineage 17.1, afaik it doesn't have static on the vs995
On a side note: double check the dirtysanta thread, you'll find most of these there
Really? I tried for many hours, multiple times and no go.
Yes it is the VS995, I guess I forgot to post that.
I did at one point get to a point where I could see a image behind all the garbled corruption on the screen and I did know that the corrupt notification was normal, that's how I made it to the TWRP once but I just couldn't get the screen fuzzy corruption to go away and the phone was still stuck vibrating non-stop.
Maybe I'm missing something?
And I only managed to get to the TWRP bootloader once.
Are all the features on the phone working on LineageOS 17.1?
I really wanted to get the phone not only up to date but limit the spying as much as possible with a device already designed to spy.
This phone is really for my wife, I'm thinking of ordering myself a PinePhone and giving that a whirl.
Visseroth said:
Really? I tried for many hours, multiple times and no go.
Yes it is the VS995, I guess I forgot to post that.
I did at one point get to a point where I could see a image behind all the garbled corruption on the screen and I did know that the corrupt notification was normal, that's how I made it to the TWRP once but I just couldn't get the screen fuzzy corruption to go away and the phone was still stuck vibrating non-stop.
Maybe I'm missing something?
And I only managed to get to the TWRP bootloader once.
Are all the features on the phone working on LineageOS 17.1?
I really wanted to get the phone not only up to date but limit the spying as much as possible with a device already designed to spy.
This phone is really for my wife, I'm thinking of ordering myself a PinePhone and giving that a whirl.
Click to expand...
Click to collapse
On stock, after it is done booting, press the power button once to turn off the main screen, then cover the upper left corner with your hand till the second screen turns off (abt 5 - 7 sec). Turn the screen back on and use your phone.
About lineage,

Can't actually fix the OS of my Moto G6

Hi.
First of all, I want to let you know I'm just new to this page, so I'm so sorry if I make any mistakes within creating the post.
As you've read in the title, I can't fix the OS of this phone. I bought it used, and apparently it didn't have any OS (I thought it was because there was a flashing attempt, which went wrong). One day, I just looked for Android 9 and I installed it. The phone started working, and so I started using it. There were some problems with the phone though. First of all, at random moments, it started lagging and just re-starting. The other problem I had was the bootloader message, saying that I didn't have an official OS.
Today, I tried to uninstall all of /system. I read a lot of information, I watched a lot of videos and I started doing so. Basically, what I wanted to do is delete all in /system so I could install a clean ROM from my computer. Problem is, I have "flashing_locked" flag. I also downgraded it to Android 8, and I think it made it worse. Now, I don't even have internet connection (or what is called /persist), which also means I'm stuck in the setup screen. There's no way I have now to enter developer mode, nor activating usb debugging. Just wondering, is there any tips I could get from you guys to fix all this problem?
Thanks a lot.
Edit: I also think there's some "residual" data from those flashing attempts, Android 8 and also Android 9. I'm not sure if that has something to do.
Edit 2: I also requested a Unique Key from the Motorola official page, which didn't lead me to anywhere. Although I used "fastboot oem unlock <key>", it didn't work to me.
s9kii_ said:
Problem is, I have "flashing_locked" flag.
Click to expand...
Click to collapse
I'm wondering how you managed to downgrade the device from Android 9 to 8 with a locked bootloader?? that's very strange... To fix the known issue of broken wifi/mobile connection (as a result of the downgrade) it's recommended to revert back to Android 9.
So, you did the downgrade from 9 to 8. But now you can't finish the setup wizard to activate OEM unlocking? Please tell me, at which point it has been deactivated?? It doesn't make any sense...
Try the Lenovo Motorola Smart Assistant tool. It'll fix the issue.
s9kii_ said:
I also think there's some "residual" data
Click to expand...
Click to collapse
I think not. Flashing a firmware means copying image files to a specific partition. Each image file got its own partition table. There will be no data left.

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